Alternatives to Finage
Compare Finage alternatives for your business or organization using the curated list below. SourceForge ranks the best alternatives to Finage in 2026. Compare features, ratings, user reviews, pricing, and more from Finage competitors and alternatives in order to make an informed decision for your business.
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1
CEX.IO
CEX.IO
CEX.IO is a regulated multi-functional cryptocurrency exchange. Established in 2013, it now has offices in the UK, US, Ukraine, Cyprus, and Gibraltar. With more than 3 million users across the globe, CEX.IO provides reliable services backed by cold cryptocurrency storage, financial viability, high security, and KYC/AML best practices. CEX.IO Exchange was one of the first platforms to make fiat-to-crypto transactions accessible by offering card payments and bank transfers to the clients. Currently, we provide a variety of trading tools for Bitcoin, Bitcoin Cash, Ethereum, Ripple, Stellar, Litecoin, Tron, and other crypto assets. You can trade these cryptocurrencies for USD, EUR, GBP, and RUB. We know that mobility matters, so we’ve enabled trading through a website, iOS and Android mobile apps, WebSocket, and REST API. -
2
Twelve Data
Twelve Data
Twelve Data is a leading provider of financial market data, delivering an extensive range of real-time and historical data across multiple asset classes, including stocks, forex, cryptocurrencies, ETFs, indices, commodities, and futures. The company sources its data from over 250 exchanges worldwide, ensuring comprehensive coverage that serves the needs of traders, developers, and fintech organizations. Twelve Data is dedicated to making high-quality financial information widely accessible, offering affordable solutions that cater to both individual users and large-scale institutions. The company’s platform stands out for its versatility and advanced capabilities, providing users with technical indicators, fundamental data, and alternative datasets to support in-depth market analysis. Twelve Data prioritizes scalability and reliability, offering a suite of developer-friendly tools such as APIs, WebSockets, detailed documentation, and a sandbox environment for seamless integration. WithStarting Price: $29/month -
3
EOD Historical Data
EOD Historical Data
EOD Historical Data is a leading financial data provider based in Lyon, France. We offer comprehensive APIs for End-of-Day Historical Stock Market Data, Real-Time Data via WebSockets, and Fundamental Data for Stocks, ETFs, Mutual Funds, and Indices, and many more data feeds. Take advantage of our global data coverage from 70+ stock exchanges and experience reliable, accurate, and developer-friendly data solutions. 30+ years of data. We use several data providers to compare data against different sources and deliver the best. One-click API for all financial data you needs. Quick start with sample codes Excel/VBA, Google Sheets, Python, PHP, JAVA, C#, R, Matlab, and more.Starting Price: $19.99 -
4
Massive
Massive
Massive is a market-data infrastructure platform built to provide real-time and historical financial data to developers, startups, and trading firms. It delivers institutional-grade market data across stocks, options, indices, currencies, and futures, all via a streamlined API, WebSocket, flat-file S3 access, or SQL query interface. The platform emphasizes low latency, direct connectivity to major exchanges (NYSE, NASDAQ, CBOE, OTC), and data normalization to eliminate survivorship bias and outdated pipelines. Massive positions itself as “modernizing Wall Street” by removing legacy bottlenecks and providing the same quality of market data typically reserved for large institutions, but now accessible to any app builder. The platform also includes extensive documentation, client libraries in Python, JavaScript, Go, and Java, tutorials, and example projects to accelerate integration.Starting Price: $29 per month -
5
Azure Web PubSub
Microsoft
Azure Web PubSub is a fully managed service that enables developers to build real-time web applications using WebSockets and the publish-subscribe pattern. It supports native and serverless WebSockets, allowing for scalable, bi-directional communication without the need to manage infrastructure. This service is ideal for applications such as chat rooms, live broadcasting, and IoT dashboards. Supports real-time publish-subscribe messaging for web application development through native and serverless WebSocket support. Built-in support for large-scale client connections and highly available architectures, enabling applications to handle numerous simultaneous users. Offers support for a wide variety of client SDKs and programming languages, facilitating seamless integration into existing applications. Provides built-in security features, including Azure Active Directory integration and private endpoints, to help protect data and manage access. -
6
finlight.me
finlight.me
finlight.me is a powerful, developer-first news API that delivers real-time and historical financial, geopolitical, and market-moving news from a wide range of trusted sources in clean JSON format. It supports advanced querying, including keyword search with boolean operators, date/time filtering, source inclusion/exclusion, language options, sorting, and pagination, enabling precision targeting. The API offers both REST and WebSocket endpoints, the latter providing streaming delivery of new articles matching live queries, complete with sentiment analysis labels and confidence scores. Extended article endpoints include full content and summaries depending on the subscription tier. finlight’s AI-powered sentiment tagging and market-impact insights equip developers with actionable context, while support for WebSocket streaming allows for real-time alerts and deep analytics.Starting Price: $29 per month -
7
Socket.IO
Socket.IO
In most cases, the connection will be established with WebSocket, providing a low-overhead communication channel between the server and the client. Rest assured! In case the WebSocket connection is not possible, it will fall back to HTTP long-polling. And if the connection is lost, the client will automatically try to reconnect. Scale to multiple servers and send events to all connected clients with ease. Socket.IO is a library that enables low-latency, bidirectional and event-based communication between a client and a server. It is built on top of the WebSocket protocol and provides additional guarantees like a fallback to HTTP long-polling or automatic reconnection. WebSocket is a communication protocol that provides a full-duplex and low-latency channel between the server and the browser. There are several Socket.IO server implementations available. And client implementations in most major languages. -
8
MigratoryData
MigratoryData
Enterprises running real-time web and mobile apps struggle with latency, bandwidth, and scalability issues, which negatively impact the total cost of ownership as well as the real-time experience of their users. These issues are inherent to the traditional techniques, such as HTTP polling or long polling, employed to achieve real-time communication using web and application servers. To overcome these issues, we created MigratoryData, a real-time messaging technology leveraging the WebSockets standard, streaming data to and from users over persistent WebSocket connections in milliseconds and with minimal traffic overhead. Unlike other real-time messaging technologies, MigratoryData has been designed to scale to a large number of users. It has been benchmarked to stream real-time data to 10 million concurrent users from a single commodity server. -
9
CoinAPI
CoinAPI
All cryptocurrency exchanges integrated under a single API. CoinAPI is a platform which provides fast, reliable and unified data APIs to cryptocurrency markets. We are a high-quality, one-stop-solution market data provider for cryptocurrency markets. All CoinAPI data is standardized. Market symbol details and asset codes are double-checked by real humans to ensure maximum quality. Our data is delivered to you on-demand using well-documented and simple HTTP RESTful API in JSON, XML or CSV formats. For more demanding integrations requiring real-time market data streaming, we have access through WebSocket and FIX protocols. We provide helper libraries for the most popular programming languages, so you can focus on the most important aspects instead of wasting time connecting the pieces together. We provide helper libraries for the most popular programming languages, so you can focus on the most important aspects instead of wasting time connecting the pieces together.Starting Price: $79 per month -
10
Finnhub
Finnhub
Democratize Financial Data with the most powerful stock API on the market. Real-Time RESTful APIs and Websocket for Stocks, Currencies, and Crypto. Access real-time stock API, institutional-grade fundamental and alternative data to supercharge your investment for FREE. We provide detailed financial statements for global companies going back 30+ years. 30 years of comprehensive dividends data is also available. Comprehensive list of shareholders classified into individual and institutional. Real-time earnings notification, historical surprises, analyst's price target and upgrade/downgrades. Comprehensive ETFs and Indices data such as profile, holdings, historical constituents and industry exposure. 25 years of historical data for US market updated in real-time. Get direct connection to 10+ forex brokers. Access 15+ crypto brokers with a single API. Precomputed technical indicators, support/resistance levels, pattern recognition and aggregate indicators' signal are supported via our API.Starting Price: $50 per month per market -
11
websockets
Python Software Foundation
An implementation of the WebSocket Protocol (RFC 6455 & 7692). websockets is a library for building WebSocket servers and clients in Python with a focus on correctness, simplicity, robustness, and performance. Built on top of asyncio, Python’s standard asynchronous I/O framework, it provides an elegant coroutine-based API. websockets is heavily tested for compliance with RFC 6455. Continuous integration fails under 100% branch coverage. websockets is built for production. For example, it was the only library to handle backpressure correctly before the issue became widely known in the Python community. Memory usage is optimized and configurable. A C extension accelerates expensive operations. It’s pre-compiled for Linux, macOS, and Windows and packaged in the wheel format for each system and Python version. websockets takes care of everything under the hood so you can focus on your application!Starting Price: Free -
12
BlockVigil
BlockVigil
Designed for entrepreneurial software developers, BlockVigil is the ultimate developer tool to build and scale blockchain apps with just a few lines of code. We allow you to build full-stack apps on blockchain, without learning protocol specifics. Smart contracts are quickly deployed through our system and the resulting API is instantly available to start testing. Use webhooks and WebSockets to integrate with third-party services in real-time with minimal technical effort. Our docs cater to every developer, all the way from beginners to advanced. We also provide examples to build upon. Use webhooks, WebSockets and Zapier to execute powerful off-chain and real-world workflows. BlockVigil's API gateway makes it super easy to build your blockchain apps, so you can quickly build and scale with just a few lines of code, from web developers to app developers. -
13
Kestrel
Microsoft
Kestrel is a cross-platform web server for ASP.NET Core. Kestrel is the web server that's included and enabled by default in ASP.NET Core project templates. Kestrel supports HTTPS, HTTP/2 (except on macOS), Opaque upgrade used to enable WebSockets, Unix sockets for high performance behind Nginx. Kestrel is supported on all platforms and versions that .NET Core supports. Some browsers require granting explicit permission to trust the local development certificate. Project templates configure apps to run on HTTPS by default and include HTTPS redirection and HSTS support. The Kestrel web server has constraint configuration options that are especially useful in Internet-facing deployments. There's a separate limit for connections that have been upgraded from HTTP or HTTPS to another protocol (for example, on a WebSockets request). The default maximum request body size is 30,000,000 bytes, which is approximately 28.6 MB. -
14
Pusher Channels
Pusher
Pusher Channels is a hosted API which allows you to quickly and easily bring rich realtime features to your apps; from dashboards to gaming, collaborative editing, live maps and more, simplify your stack and simply integrate Pusher’s managed WebSocket connections to build the features your users expect into any web or mobile app. Whenever something changes in your system a single API call to Channels will prompt a WebSocket update so that you can instantly update the UI in your users’ apps. Whether you have one connection or millions, ultra-low latency with automatic fallback means Channels works anywhere. Pusher delivers billions of messages every month across browsers, mobile and IoT with the event-based API. Pusher manages and scales the realtime infrastructure, as a reliable and cost-effective alternative to building, maintaining and scaling in-house, so you can concentrate on your product.Starting Price: $49 -
15
PENDAX
Compendium
A Javascript library allowing simplified interaction with advanced commands on a growing list of cryptocurrency exchanges and financial applications. Simplified exchange commands and interoperability. Our underlying high-frequency trading engine, PENDAX, is available for all developers, traders, financial analysts, and data scientists to build custom integrations on. It provides simple access to a variety of different use cases revolving around trading and data deployments. Current Feature Summary - Full Public and Private HTTP REST APIs for all supported platforms are integrated in an efficient manner for secondary deployment. - Aggregated commands are normalized between systems in the unified package making PENDAX extremely easy to integrate. - WebSocket and live data capabilities are included for all supported exchanges. - No subscription is needed for a "Professional" version of PENDAX.Starting Price: Free -
16
AIOHTTP
AIOHTTP
Supports both client and server side of HTTP protocol, both client and server web-sockets out-of-the-box, and avoids callback hell and web-server with middlewares and pluggable routing. -
17
TekSIP
KaplanSoft
TekSIP is a SIP Registrar and SIP Proxy for Windows. TekSIP supports UDP, TCP, TLS and WebSocket (IPv4 & IPv6) transports. TLS and Secure WebSocket are supported in only commercial editions. TekSIP is tested on Microsoft Windows Vista, Windows 7/8/10/11 and Windows 2008-2022 server. TekSIP can be deployed as a signaling server for WebRTC based SIP phones. TekSIP complies with RFC 3261, RFC 3263, RFC 3311, RFC 3581 and RFC 3891. It supports NAT traversal and ENUM. Please see technical details about NAT traversal in Readme. You can select IP address to be listened and alternative SIP endpoints for outgoing calls. You can also log session details into a log file and monitor active registrations and sessions in real-time. You can monitor number of active registrations and sessions using Windows Performance Monitor (Perfmon.exe). TekSIP can redirect calls to alternate endpoint when called endpoint is unavailable (Off-line, busy...). Active SIP session can be terminated via GUI.Starting Price: $239 -
18
Bitstamp
Bitstamp
With a proven track record and a mature approach to the industry, we provide reliable trading of cryptocurrencies. Stay connected to the market with our mobile app. Featuring advanced order types and analytical tools for experienced traders, as well as a simple buy & sell interface for those just getting started. We provide premium access to crypto trading for both individuals and institutions through high liquidity, reliable order execution and constant uptime. Set up your own trading interface or deploy your algorithmic strategy with our high-performance FIX and HTTP APIs. Connect to our WebSocket for real-time data streaming. Premium 24/7 support available to all customers worldwide by phone or email. Dedicated account managers for partners. Instant card purchases are supported worldwide with a few exceptions. Deposit and withdraw funds easily from anywhere in the world. US customers can use ACH for instant deposits. -
19
API Tester
API Tester
API Tester is a completely free mobile app available on iOS, Android, macOS, and watchOS. It is a functional API testing tool that allows users to complete compound tasks on any device. - Test any API on the go: REST, GraphQL, WebSocket, SOAP, JSON RPC, XML, HTTP, HTTPS. - GET, POST, PUT, PATCH, DELETE, etc. HTTP request methods are supported. - Perform the API calls with any kind of request data encoding and transfer type. - Import collections from Swagger, Postman, and YAML, or import requests using cURL, as well as export created requests via link or cURL. - Use a powerful GraphQL editor with full-scale experience. - WebSocket testing tool is available: handles connection and message exchange via WS or WSS. The API Tester mobile app allows you to get the job away from your workstation. Save time, work from anywhere!Starting Price: Completely free -
20
Ably
Ably
Ably is the definitive realtime experience platform. We power more WebSocket connections than any other pub/sub platform, serving over a billion devices monthly. Businesses like HubSpot, NASCAR and Webflow trust us to power their critical applications - reliably, securely and at serious scale. Ably’s products place composable realtime in the hands of developers. Simple APIs and SDKs for every tech stack, enable the creation of a host of live experiences - including chat, collaboration, notifications, broadcast and fan engagement. All powered by our scalable infrastructure.Starting Price: $49.99/month -
21
Barchart OnDemand
Barchart
Our flexible cloud-based APIs make getting powerful data into your applications, workflows, and products simple. Through Amazon Web Services we maintain multiple data centers throughout the United States, ensuring optimal reliability and redundancy. Through server virtualization and built-in security procedures we can scale up our institutional ready services in a matter of seconds. We support both GET and POST requests as well as SOAP. Data can be delivered in multiple formats including XML, JSON and CSV, and can be streamed over WebSockets. We’re compatible with any operating system, such as Windows, Linux, iOS or Android, and any programming language, such as Python, Java, PHP, R, or ASP.NET. We embrace the cloud but also maintain physical data centers for specific client needs. Through our Equinix-based facilities we cater to low latency requirements and provide a true physical back-up. -
22
Agoston.io
Agoston.io
Get instant access to a self-generated GraphQL server. The backend automatically discovers your data model. Enjoy a comfortable development experience with a hot refresh on database changes. There is no limit to your needs for simple/complex queries or function calls. GraphQL is faster than other communication APIs because it removes over-fetching and under-fetching problems. It also comes with a WebSocket under the hood: subscribe to data-specific modifications in the database and offer exceptional real-time customer experience to your user. The proven permission system from Postgres offers the flexibility to allow operations from tables to specific columns and rows. Agoston relies on this robust permission system to guarantee access to data. Users only access what they are allowed to.Starting Price: $49 per month -
23
Excel Price Feed
Coderun Technologies
Live market data in your Excel spreadsheet. Excel Price Feed is an Add-in which includes 100+ new Excel formulas for live, historical and fundamental market data. Markets include stocks, stock indices, stock options, mutual funds, forex, commodities and cryptocurrencies. Real-time data for NYSE and NASDAQ, delayed data for other exchanges (Europe, Asia, Americas and Australia). Data is sourced from Yahoo Finance and IG Index / IG Markets.Starting Price: $10 per user per month -
24
HarperDB
HarperDB
HarperDB is a distributed systems platform that combines database, caching, application, and streaming functions into a single technology. With it, you can start delivering global-scale back-end services with less effort, higher performance, and lower cost than ever before. Deploy user-programmed applications and pre-built add-ons on top of the data they depend on for a high throughput, ultra-low latency back end. Lightning-fast distributed database delivers orders of magnitude more throughput per second than popular NoSQL alternatives while providing limitless horizontal scale. Native real-time pub/sub communication and data processing via MQTT, WebSocket, and HTTP interfaces. HarperDB delivers powerful data-in-motion capabilities without layering in additional services like Kafka. Focus on features that move your business forward, not fighting complex infrastructure. You can't change the speed of light, but you can put less light between your users and their data.Starting Price: Free -
25
Financial Modeling Prep
Financial Modeling Prep
Fast, accurate, and developer-friendly financial market data at an affordable price. Our API allows businesses to quickly unlock opportunities to meet their unique needs We cover over 70,000+ securities covered across 46 Countries data back 30+ years. We provide standardized and as-reported fundamentals for US-based publicly traded companies, real-time market data, ESG ratings and scores, ETFs and Mutual Fund Holding We are a free stock API | historical data API | financial statements API. We update our financial statements in real time, every statements is audited, standardized, and up to date. We cover NYSE and NASDAQ, AMEX. EURONEX. TSX. INDEXES. ETFs. MUTUAL FUNDS. FOREX. CRYPTO.Starting Price: $14 per month -
26
Lucid KV
Lucid KV
Lucid is currently in a development stage but we want to achieve a fast, secure and distributed key-value store accessible through an HTTP API, we also want to propose persistence, encryption, WebSocket streaming, replication and a lot of features. Private Keys Storing, IoT (to collect and save statistics data), Distributed cache, service discovery, distributed configuration, blob storage etc. -
27
CoinCodex
CoinCodex
CoinCodex is your all-in-one platform for real-time financial data, market insights, and investment tools. Track more than 40,000 cryptocurrencies with detailed charts, live prices, market caps, trading volumes, all-time highs, and customizable time frames. Compare multiple coins on a single chart or explore full historical price data for deeper analysis. Beyond crypto, CoinCodex also provides live pricing and forecasts for stocks, forex, gold, and silver, giving you a complete overview of global markets in one place. To support your investment strategy, CoinCodex includes a portfolio tracker, extensive historical datasets, and a suite of financial calculators that help you analyze performance, plan investments, and make informed decisions. -
28
Graffle
Graffle
Our thin layer over the Flow blockchain allows you to read, write, and query the blockchain using any language. Our indexers monitor the chain 24/7, store your events, and execute cadence at scale. Subset of tools and infrastructure to enhance non-fungible tokens with real-world utility. Emitting events to the chain with push guarantees, queuing and deferred execution. Setup an indexer and instantly get real-time streaming data directly to your webhook or WebSocket. Drill down into events and statistics around your traffic, webhooks, and APIs. We are actively looking for beta testers. Build a new dApp with Graffle. Aggregate at scale, gain insight, join our beta wait list today! -
29
BlockFills
BlockFills
BlockFills is a financial technology and crypto market infrastructure platform that provides end-to-end digital asset trading solutions and services for institutional and professional participants in the cryptocurrency market. Its proprietary multi-asset technology stack delivers price discovery, price aggregation, electronic order matching, smart order routing, and trade reconciliation across digital spot, derivatives, and lending markets, solving fragmented liquidity challenges and enabling smoother execution of large-volume trades. It operates institutional-grade trading venues and liquidity provision services with API connectivity (FIX, WebSocket, REST), deep 24/7 liquidity, and options to integrate with client systems or use BlockFills’ interfaces like Vision Trader and Phoenix for both simple and advanced trading needs. In addition to liquidity and execution, BlockFills supports OTC trading, collateralized lending, and borrowing. -
30
HitBTC
HitBTC
Our platform offers tools and features that would meet the expectations of even the most demanding and sophisticated traders, enabling them to engage in real-time trading with low latency, high reliability, and peak performance. HitBTC was the first on the market to offer automated and algo traders reliable and fast REST, WebSocket and FIX API. To maintain the security of our platform, we deploy comprehensive audited cryptography schemes with strict operational procedures as well as user-specified white lists and limits.2-factor authentication, advanced encryption technology, cold storage – we give you peace of mind when it comes to security. es to security. Our terminal is built on the best technology and lets you trade effortlessly any of the HitBTC currency pairs. Make the most out of your trading bot with our leading API and its low latency data and execution feeds. Our Fee Tier System is among the best on the market and encourages active traders with lower trading fees. -
31
Xosignals
Xosignals
XOSignals is a global trade signal provider dedicated to developing some of the most accurate signals in the world. They offer real-time, transparent, and precise Forex signals, enabling traders to earn daily profits. Their services encompass trade signals for foreign currency, including euro exchange rates, CFDs, commodities, gold prices, cryptocurrencies like Bitcoin and Ethereum, and more. Users can access accurate live Forex trading signals, as well as free crypto and stock market signals, directly on their smartphones, with the potential to enjoy more than 300 pips per week. XOSignals also provides free technical analysis for the Forex market, offering trading tips from market experts to help traders improve their trading strategies. Additionally, they offer a live feed with real-time market updates, keeping users informed about the latest developments in Forex, stock, and crypto markets.Starting Price: Free -
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gpt-4o-mini Realtime
OpenAI
The gpt-4o-mini-realtime-preview model is a compact, lower-cost, realtime variant of GPT-4o designed to power speech and text interactions with low latency. It supports both text and audio inputs and outputs, enabling “speech in, speech out” conversational experiences via a persistent WebSocket or WebRTC connection. Unlike larger GPT-4o models, it currently does not support image or structured output modalities, focusing strictly on real-time voice/text use cases. Developers can open a real-time session via the /realtime/sessions endpoint to obtain an ephemeral key, then stream user audio (or text) and receive responses in real time over the same connection. The model is part of the early preview family (version 2024-12-17), intended primarily for testing and feedback rather than full production loads. Usage is subject to rate limits and may evolve during the preview period. Because it is multimodal in audio/text only, it enables use cases such as conversational voice agents.Starting Price: $0.60 per input -
33
Market Data
Market Data
Download current and historical market data for stocks, options, futures, forex, indices, and more. Access data programmatically using the Market Data REST API or use the Google Sheets or Microsoft Excel Add-ons to download data into your spreadsheets. Designed for and built by active traders, Market Data is the only API/data solution that gives you everything you need: decades of financial data, backtesting, technical & fundamental analysis, and more. Get started free. No credit card required. The Google Sheets Add-On lets you add data queries directly in your formulas for real-time updating as the market moves. Get the data you need in whatever spreadsheet platform you use. Market Data offers CSV data downloads compatible with Excel, Numbers, Open Office, and more. Get prices (15+ years) directly into your spreadsheets with a simple formula.Starting Price: $9/month -
34
ejabberd
ProcessOne
ejabberd XMPP server simplifies critical administration and key usage statistics through an easy-to-use and customizable management module for administrators. ejabberd XMPP server statistics module is compatible with Nagios, the industry standard IT infrastructure monitoring tool. ejabberd XMPP server supports more interaction with the browser and the web app, facilitating real-time messaging. The use of WebSockets provides the ability to seamlessly send and receive messages while a browser tab is opened. BOSH capability is provided as a fallback for XMPP server connection. ejabberd XMPP server mobile reliability layer helps manage mobile network’s disconnection, message deliveries, consistent conversation on any online device, IoT, chat server, IM service, push notification and mobile interfaces. -
35
Pally.gg
Pally.gg
Pally.gg is a tipping platform designed for content creators and their teams to set up a customizable tip page in minutes, invite up to 50 team members, and define individual revenue splits that process supporter tips automatically with weekly payouts and built-in chargeback protection. The web interface and developer-friendly WebSockets API enable real-time tip alerts, complete with customizable images, sounds, text, and overlays, for live streams and chat via integrations like Twitch, plus a dynamic activity feed and goal trackers that update instantly. Users gain control through deep customization of their tip page’s branding and experience, transparent data and reporting tools for financial and growth insights, and a growing library of audience-engagement integrations. With 0% platform fees, support for automatic individual payouts, and no technical setup required, Pally.gg empowers over 8,000 creators to monetize community support. -
36
Kodey
Kodey
Kodey is a comprehensive AI-agent platform that lets users build, deploy, and manage autonomous AI agents without needing to write code. It offers a visual agent builder for non-technical users, enabling you to drag and drop components and connect workflows or data sources in minutes, plus full-support SDKs and APIs (e.g., Python, JavaScript, REST/GraphQL) for developers who want deeper customization. Once configured, agents run in secure, containerized environments and can be deployed to production via REST, WebSocket, or as embeddable web components; Kodey.ai automatically scales infrastructure to meet demand. It includes prebuilt integrations (databases, third-party tools, etc.), real-time monitoring and analytics, version control, and collaboration tools with role-based access control, all ensuring reliability, security, and maintainability in production workflows.Starting Price: $100 per month -
37
Liveblocks
Liveblocks
Liveblocks is a developer-first real‑time collaboration engine that provides customizable, ready‑made features—such as multiplayer editing, live cursors and presence, contextual comments, smart notifications, and integrated AI copilots—enabling teams to embed rich collaborative experiences directly into web applications. It handles persistence, sync, streaming, WebSocket infrastructure, offline support, conflict‑free CRDT‑backed data storage (with multiplayer undo/redo), and scalable hosting across rooms and projects. Featuring modular React and JavaScript SDKs, you can drop in components (chat, comments, toolbar, notifications) and launch in days instead of months. With Liveblocks 3.0, embedded AI copilots bring context-aware, in-app AI agents that can chat, take actions, and collaborate alongside users. -
38
CloudMQTT
CloudMQTT
CloudMQTT is a perfect solution for "Internet of Things" messaging between low-power sensors or mobile devices such as phones, embedded computers, or microcontrollers like the Arduino. CloudMQTT automates every part of the setup and running of your hosted mosquitto message broker. Let your team focus on what they do best - building your product. Leave server management and monitoring to the experts. Use CloudMQTT WebSocket client to view messages pushed from your device to the browser or publish messages from the browser to your device. This is ideal for testing and debugging since you can display live information from a device or sensor in real-time. Invite your co-workers and you will separate CloudMQTT accounts, but manage the same set of instances. You decide where to send notifications and who pays the bills.Starting Price: $5 per month -
39
IEX Cloud
IEX Cloud
The easiest way to use financial data. Build and scale financial applications faster on IEX Cloud. The easiest way to build financial applications. Institutional grade data, including real-time and historical stock prices, fundamentals, forex, crypto and more - all in one API. Full U.S. market coverage, 95,000+ securities. Get open access to a range of datasets with one subscription. No need to lock into long-term contracts with a high upfront payment. Access datasets in minutes with one easy-to-use API, so you can focus on building. Essential financial data, all in one place. Get the data you need when and where you want it. No coding necessary. Access Premium Datasets sourced from a growing community of curated partners. Use your preferred implementation method to integrate seamlessly with other tools in your workflow. High-performance architecture built for rapid growth and enterprise scale. Our platform is reliable by nature so you can build more and worry less.Starting Price: $9 per month -
40
ContextForge MCP Gateway is an open source Model Context Protocol (MCP) gateway, registry, and proxy platform that provides a unified endpoint for AI clients to discover and access tools, resources, prompts, and REST or MCP services in complex AI ecosystems. It sits in front of multiple MCP servers and REST APIs to federate and unify discovery, authentication, rate-limiting, observability, and traffic routing across diverse backends, with support for transports such as HTTP, JSON-RPC, WebSocket, SSE, stdio, and streamable HTTP, and can virtualize legacy APIs as MCP-compliant tools. It includes an optional Admin UI for real-time configuration, monitoring, and log visibility, and is designed to scale from standalone deployments to multi-cluster Kubernetes environments with Redis-backed federation and caching for performance and resilience.
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41
SaaS Pegasus
SaaS Pegasus
You want to get your project off the ground, but you're stuck on all the boring parts. Pegasus handles the foundation of your application for you. Get a head start and launch faster than you dreamed possible. A secure and extensible user account system with sign-up, authentication, email confirmation, password reset, and social login built in. Create multi-tenant applications with an optional teams/organizations model, invitation workflow, and role-based access control framework. Set up plans and collect recurring payments with a powerful and flexible Stripe subscription module. A responsive UI built with your choice of Tailwind CSS, Bootstrap, or Bulma. Build real-time UIs with asynchronous and WebSocket support with Django channels and a built-in group chat demo. Interactive pages in Pegasus are built with your choice of React or HTMX. Use as much or as little JavaScript as you want.Starting Price: $249 per year -
42
CCXT Pro
CCXT Pro
CCXT Pro is a professional tool for algorithmic crypto-trading. It is a high-performance superset of the CCXT library, one of the world's leading open-source frameworks for crypto finance. CCXT Pro includes the standard CCXT library and wraps it with powerful new features and useful enhancements. Unified public and private WebSockets APIs. Efficiency, higher speeds, and lower latencies. Less traffic, fewer bandwidth requirements. Priority in development and maintenance. Dedicated and responsive technical support. Backward compatibility with CCXT.Starting Price: $29 per month -
43
AliwareMQ for IoT
Alibaba Cloud
AliwareMQ for IoT is a message service that is designed specifically for IoT and mobile Internet (MI). The service can be applied to multiple scenarios, including live streaming, financial payments, smart catering, instant messaging, mobile apps, smart devices, and Internet of Vehicles. Message Queue for MQTT supports multiple protocols including MQTT and WebSocket to enable two-way communications between devices and the cloud. In this way, messages can be exchanged in multiple business models including C2C, C2B, and B2C to achieve Internet of Everything. -
44
Cowboy
99s
Cowboy is the ultimate server for the modern Web with support for Websocket, HTTP/2 and REST. Cowboy is a small, fast and modern HTTP server for Erlang/OTP. Cowboy aims to provide a complete modern Web stack. This includes HTTP/1.1, HTTP/2, WebSocket, server-sent events and Webmachine-based REST. Cowboy comes with functions for introspection and tracing, enabling developers to know precisely what is happening at any time. Its modular design also easily enables developers to add instrumentation. Cowboy is a high-quality project. It has a small code base, is very efficient (both in latency and memory use) and can easily be embedded in another application. Cowboy is clean Erlang code. It includes hundreds of tests and its code is fully compliant with the Dialyzer. It is also well documented and features a function reference, a user guide and numerous tutorials. Knowledge of the HTTP protocol is recommended but not required, as it will be detailed throughout the guide. -
45
Mako Server
Real Time Logic LLC
The Mako Server is a compact, event-driven web and application server designed for resource-constrained systems. Engineered for embedded environments, it combines a lightweight HTTP/HTTPS server with a Lua scripting engine, enabling high-level development with direct access to low-level C code. Its architecture delivers high performance, low memory use, and secure integration, making it ideal for systems that can’t support heavier frameworks but require dynamic web interfaces or APIs. The server supports live updates, built-in debugging, and Lua Server Pages (LSP), offering PHP-like scripting optimized for embedded use. Common use cases include device portals, diagnostic dashboards, REST APIs, and real-time WebSocket interfaces. Lua’s speed and small footprint align perfectly with the Mako Server’s goals. More than just a web server, Mako is a comprehensive framework that enables developers to integrate modern, secure, web-enabled features into compact devices.Starting Price: $498.00 -
46
Imitate Email
Imitate Email
Imitate Email is an end-to-end email testing platform for developers and QA teams to ensure their email flows happen at the right time and look great. Where we differ is with our embeddable web widget and SSO feature. A single line of JavaScript adds the Imitate Email widget to your application so that: - developers can test email flows inside the software they're building - testers, or clients, can see emails inside the software they're testing without needing an Imitate Email account On top of this, we provide all the features you would expect: - a web app for viewing emails - tools for checking responsiveness, link checking, spam scoring and deliverability - a fake SMTP server alongside dedicated test email address - IMAP/POP3 access for use with your favorite email client or programmatically - integration testing support with IMAP/POP3 and WebSockets - and more! Free forever for solo developers with 15 emails a day and access to all featuresStarting Price: $7/month -
47
OpenAgents
OpenAgents
OpenAgents is an open source framework and platform for building, connecting, and deploying networks of AI agents that can discover, communicate, collaborate, and solve problems together rather than operating in isolation, enabling developers to launch and join agent communities that work at scale and share resources seamlessly. It provides infrastructure for AI agent networks where each network acts as a self-contained community with peer discovery, message passing, and coordinated collaboration over flexible protocols such as HTTP, WebSocket, and gRPC, and is designed to be protocol-agnostic and compatible with popular large language model providers and agent frameworks to support diverse deployment scenarios. Users can build their own agents with simple configurations or integrate custom logic and tools, connect them to one or more networks, and manage interactions using OpenAgents’ standard interfaces.Starting Price: Free -
48
web3.js
web3.js
web3.js is a collection of libraries that allow you to interact with a local or remote ethereum node using HTTP, IPC or WebSocket. A Bloom filter is a probabilistic, space-efficient data structure used for fast checks of set membership. That probably doesn’t mean much to you yet, and so let’s explore how bloom filters might be used. Imagine that we have some large set of data, and we want to be able to quickly test if some element is currently in that set. The naive way of checking might be to query the set to see if our element is in there. That’s probably fine if our data set is relatively small. Unfortunately, if our data set is really big, this search might take a while. Luckily, we have tricks to speed things up in the ethereum world! -
49
Chain49
Hartmann IT Solutions GmbH
Kickstart your next blockchain project with Chain49! We provide access to our network of blockchain full nodes located in Germany via JSON-RPC, WebSocket and a shared API based on battle-tested indexer Blockbook. We support the most popular blockchains like Bitcoin, Ethereum, BNB Smart Chain and more! By using our services, you can save a lot of time and money spent on setting up your own blockchain infrastructure and just focus on developing your idea. Dedicated nodes and custom setups are also available from over 50 different blockchains for the highest load requirements without any rate limits. Contact us for a free consultation today or register for a free key and start building awesome things!Starting Price: €49/month -
50
GPT‑5.3‑Codex‑Spark
OpenAI
GPT-5.3-Codex-Spark is an ultra-fast coding model designed for real-time collaboration inside Codex. Built as a smaller version of GPT-5.3-Codex, it delivers over 1000 tokens per second when served on low-latency Cerebras hardware. The model is optimized for interactive coding tasks, enabling developers to make targeted edits and see results almost instantly. With a 128k context window, Codex-Spark supports substantial project context while maintaining speed. It focuses on lightweight, precise edits and does not automatically run tests unless prompted. Infrastructure upgrades such as persistent WebSocket connections significantly reduce latency across the full request-response pipeline. Released as a research preview for ChatGPT Pro users, Codex-Spark marks the first milestone in OpenAI’s partnership with Cerebras.
