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MCP Server
Feature
MCP Server
Model Context Protocol server for AI agents.
92 providers
597 APIs
73 declared variants
The provider publishes a Model Context Protocol server so agents and assistants can call its capabilities as tools without a bespoke integration. The fastest-growing surface in the catalog.
92 API providers on the APIs.io network offer mcp server. The highest-rated are WSO2, Cloudflare, Postman, ActiveCampaign, Okta.
Providers
Ranked by API Evangelist rating — Exemplar and Strong are expanded by default.
Exemplar
17
Complete, well-documented, and agent-ready
WSO2 WSO2 API Manager is an open-source API management platform supporting REST, SOAP, and GraphQL with flexible... 7 published contracts 83.1 Cloudflare Cloudflare is a global network designed to make everything you connect to the Internet secure, private, fas... 26 published contracts 81.3 Postman Postman is the world's leading API platform, used by 35+ million developers to design, build, test, documen... 21 published contracts 80.2 ActiveCampaign ActiveCampaign is a marketing automation and customer experience platform used by more than 180,000 busines... 11 published contracts 78.1 Okta Okta is the workforce identity incumbent — its Identity Cloud platform (also called the Okta Workforce Iden... 2 published contracts 76.1 Merge Merge is the connective infrastructure for production AI. The Merge Unified API offers one API surface acro... 18 published contracts 73.9 Buildkite Buildkite is a hybrid CI/CD platform that combines a hosted control plane (pipelines.buildkite.com) with se... 2 published contracts 72.1 Novu Novu is the open-source notification infrastructure for developers. A single REST API and workflow engine r... 1 published contract 71.6 Avalara Avalara helps businesses of all sizes get tax compliance right. We deliver cloud-based solutions that work ... 17 published contracts 71.4 Taboola Taboola (NASDAQ: TBLA) is a New-York-headquartered native and discovery advertising company founded in 2007... 7 published contracts 70.9 fal fal (Features and Labels, Inc.) is a generative media platform providing the world's fastest API for runnin... 3 published contracts 68.6 Knock Knock is notifications infrastructure as a service — a product and customer messaging platform you use to p... 13 published contracts 68.6 Better Stack Better Stack is an infrastructure monitoring and observability platform that combines uptime monitoring, he... 1 published contract 68.5 Speakeasy Speakeasy provides an AI control plane platform that lets enterprises govern, secure, and observe AI agents... 1 published contract 68.3 Cumulocity Cumulocity is an enterprise AIoT (Artificial Intelligence of Things) platform that connects, manages, and a... 17 published contracts 67.5 E2B E2B (e2b-dev) provides secure, isolated cloud sandboxes for AI agents and AI-generated code, built on a for... 3 published contracts 67.4 S&P Global S&P Global (NYSE SPGI) is the parent of S&P Global Ratings, S&P Global Market Intelligence, S&P Dow Jones I... 5 published contracts 66.9
Strong
26
Solid coverage with minor gaps
GitHub Copilot APIs and resources for GitHub Copilot, an AI pair programmer that helps you write code faster. 1 published contract 65.8 Healthie Healthie is a cloud, API-first EHR and practice management platform purpose-built for digital health startu... 1 API 65.8 Commerce Layer Commerce Layer is the headless, multi-market commerce API used by global brands to sell everywhere — web, m... 4 published contracts 65.6 Fireblocks Fireblocks is an institutional digital-asset and stablecoin infrastructure company providing MPC-secured cu... 7 published contracts 65.5 Fastly Fastly is an edge cloud platform that helps customers create great digital experiences quickly, securely, a... 22 published contracts 65.2 Apollo.io Apollo.io is a sales intelligence and go-to-market platform combining a database of 240M+ contacts and 30M+... 6 published contracts 65.1 Deel Deel is a global workforce platform combining payroll, Employer of Record (EOR), independent contractor man... 99 published contracts 64.2 Boomi Boomi is a leading integration platform that allows organizations to connect applications, data, and people... 3 published contracts 63.8 Tomorrow.io Tomorrow.io is a Boston-based weather intelligence platform combining a global proprietary numerical weathe... 2 published contracts 63.8 PropelAuth PropelAuth is a B2B SaaS authentication and multi-tenant user management platform purpose-built for organiz... 3 published contracts 63.2 APIMatic APIMatic is a developer experience platform for APIs that specializes in automated SDK generation, API docu... 5 APIs 63.1 parcelLab parcelLab is a Munich-headquartered post-purchase experience platform (parcelLab GmbH) used by retailers in... 1 published contract 63.0 Solo.io Solo.io is a cloud-native application-networking company founded in 2017 that builds enterprise and open-so... 6 published contracts 63.0 Prismatic The integration platform for B2B SaaS teams. Prismatic empowers everyone on your team with integration tool... 2 APIs 62.5 Stytch Stytch is an authentication and identity infrastructure provider. Its Consumer and B2B APIs cover passwordl... 4 published contracts 61.9 Figma Figma is a collaborative interface design tool with a comprehensive REST API for accessing and manipulating... 3 published contracts 61.0 Walmart Walmart is a multinational retail corporation that operates a chain of hypermarkets, discount department st... 27 published contracts 60.9 Exa Exa is a web search API and AI research platform built specifically for LLMs and agents — semantic and keyw... 8 published contracts 59.0 GreyNoise Intelligence GreyNoise Intelligence collects and analyzes Internet-wide scan and attack traffic from a global network of... 1 published contract 58.4 Arcade.dev Arcade.dev (formerly Arcade AI) is the MCP runtime for production AI agents — a platform that lets agents s... 9 published contracts 58.0 Hyperbolic Hyperbolic is an open-access AI cloud and decentralized GPU marketplace serving 200,000+ builders with affo... 5 published contracts 57.7 Leonardo.AI Leonardo.AI is an Australian generative-AI company (acquired by Canva in July 2024) offering a Production A... 14 published contracts 56.9 Apidog Apidog is an all-in-one API development platform that connects the entire API lifecycle: visual API design,... 1 published contract 56.7 emnify emnify is a cloud-native global IoT cellular connectivity provider operating its own mobile core and SuperN... 1 published contract 55.6 Civitai Civitai is the largest open community for Stable Diffusion, SDXL, Flux, and video AI models — hosting over ... 2 published contracts 55.4 Pipedream Pipedream is a developer-centric integration platform providing three product lines: Workflows (code-level ... 2 published contracts 54.7
Developing
29
Usable, with meaningful gaps to close
AgentGateway AgentGateway is an open-source, AI-native proxy and gateway for routing, observing, and governing traffic t... 1 published contract 54.2 WHOOP WHOOP is a fitness and recovery wearable platform providing a REST API for accessing sleep, recovery, strai... 3 published contracts 53.8 WunderGraph Full Lifecycle API Management for (Federated) GraphQL. Schema Registry, composition checks, analytics, metr... 11 APIs 53.0 Encore Encore is a backend application framework and developer cloud that lets engineering teams build type-safe d... 2 published contracts 52.5 US Census Bureau The U.S. Census Bureau is the federal statistical agency responsible for producing data about the American ... 7 published contracts 52.3 Oxylabs Oxylabs is a Lithuanian (Vilnius-based) web intelligence platform providing premium proxy networks (Residen... 1 published contract 52.1 Conekta Conekta is a Mexico-based payment processor that lets businesses accept credit and debit cards, OXXO cash v... 2 published contracts 52.0 Toolhouse Toolhouse is a Backend-as-a-Service platform for building, deploying, and managing "AI workers" (Toolhouse'... 1 published contract 51.8 APIContext APIContext (formerly APImetrics) is a synthetic API testing, monitoring and conformance platform. It calls ... 6 published contracts 51.6 Bifrost Bifrost is a high-performance open-source AI gateway that unifies access to 20+ AI providers through a sing... 4 APIs 51.5 Instabug (Luciq) Instabug — now rebranded as Luciq — is an agentic mobile observability platform covering bug reporting, cra... 1 published contract 51.0 Apollo GraphQL Apollo Graph, Inc. — trading publicly as Apollo and Apollo GraphQL — is the San Francisco company behind th... 11 APIs 50.5 Agentic AI Foundation The Agentic AI Foundation (AAIF) is a Linux Foundation project, announced 9 December 2025, that gives the c... 2 published contracts 50.4 Choreo WSO2 Choreo is an enterprise-grade Internal Developer Platform (IDP) and application orchestration platform... 3 published contracts 50.3 Bright Data Bright Data is an Israeli web data platform and operator of the world's largest legitimate residential prox... 11 published contracts 50.1 CrewAI Cloud CrewAI Cloud (CrewAI AMP) is the managed Agent Management Platform for deploying, monitoring, scaling, and ... 1 published contract 49.7 1NCE 1NCE is a Cologne-headquartered global IoT connectivity provider best known for the IoT Lifetime Flat — a s... 15 published contracts 48.9 Continue Continue is the open-source AI code assistant for VS Code and JetBrains, distributed under Apache 2.0. The ... 1 published contract 47.2 StackOne StackOne is an AI-powered embedded integration platform as a service (iPaaS) designed to simplify and accel... 1 published contract 46.6 WeatherAPI WeatherAPI.com provides real-time, forecast, historical, marine, future, astronomy, air quality, pollen, sp... 2 published contracts 45.9 Wrike Wrike is a collaborative work management platform used by 30,000+ organizations. The Wrike Developer Platfo... 1 published contract 45.8 Aligned News Aligned News is an AI-native intelligence and news platform that synthesizes AI-powered briefings from 63 c... 1 published contract 44.8 Blockdaemon Blockdaemon is an institutional blockchain infrastructure company founded in 2017 by Konstantin Richter. It... 11 APIs 44.8 APIToolkit (Monoscope) APIToolkit (now Monoscope) is an open-source-friendly API observability and monitoring platform that helps ... 1 published contract 42.8 Epidemic Sound Epidemic Sound is a Stockholm-based royalty-free music and sound effects licensing platform for video creat... 2 published contracts 42.4 Activepieces Activepieces is an open-source, no-code automation platform that enables users to streamline workflows by c... 1 published contract 42.0 Langflow Langflow is an open-source low-code visual builder for AI agents, RAG pipelines, and LangChain-based workfl... 1 published contract 41.4 Apache Doris Apache Doris is a high-performance, real-time analytical database based on MPP (Massively Parallel Processi... 1 API 41.0 Lakera Lakera is an AI security company building runtime defenses for generative AI applications. Its flagship Lak... 1 published contract 40.1
Thin
16
Limited public surface area
Apify Apify is a full-stack web scraping and browser automation platform that enables developers to build, run, a... 6 APIs 37.0 io.net io.net is a decentralized GPU network for AI compute, built on Solana, that aggregates idle consumer and da... 8 APIs 35.8 Wix Wix is a cloud-based web development platform that allows users to create professional websites and online ... 1 published contract 35.7 Appium Appium is an open-source test automation framework governed by the OpenJS Foundation, designed to facilitat... 13 APIs 35.2 ACI.dev ACI.dev (Aipolabs Agent-Computer Interface) is an open-source tool-calling platform that hooks AI agents in... 1 published contract 34.9 Knit Knit is a unified API platform for B2B products, AI agents, and MCP clients, providing integrations infrast... 1 published contract 31.7 Factory Factory is an agent-native software development platform whose Droids act as autonomous AI engineers that p... 3 APIs 31.3 Eyevinn Technology Eyevinn Technology is a Stockholm, Sweden based video streaming consultancy and open source company special... 8 APIs 30.4 SiteMinder SiteMinder is an Australian hotel commerce platform (ASX SDR) that connects hotels with more than 450 onlin... 5 APIs 30.4 Sourcegraph Sourcegraph is a code intelligence platform that lets developers and AI agents search, navigate, understand... 10 APIs 30.2 Isometric Isometric is a London- and New York-based certifier of climate solutions building an AI-native, science-led... 2 published contracts 29.7 Agent Skills A collection of resources, APIs, and standards related to AI agent skills and capabilities. Agent skills re... 3 APIs 29.6 Glama Glama is an all-in-one AI workspace combining an MCP server marketplace and registry, a managed MCP gateway... 7 APIs 29.6 Nx Nx is a smart, fast, extensible monorepo build system and integrated CI platform created and maintained by ... 10 APIs 29.2 Blissfully Blissfully was a SaaS management platform providing SaaS discovery, spend optimization, and workflow automa... 7 APIs 29.0 The Philadelphia Inquirer The Philadelphia Inquirer is the largest newspaper in Pennsylvania, owned by the nonprofit Lenfest Institut... 3 published contracts 27.7
Emerging
4
Early or largely undocumented
What Providers Actually Declared
This feature is a canonical term. These are the free-text strings
providers wrote in their own apis.yml that map onto it.
1NCE MCP Server (Python) exposes the 1NCE Management API to LLM agents over Model Context Protocol AI Coding Agent Support (MCP Server) AI voiceover generation via the MCP server (browse artists, generate, status, download) Agent Handler MCP server surface for AI agents Agents SDK on Durable Objects with WebSockets, scheduling, MCP support Apidog MCP Server CitySDK JavaScript library and official Census Data API MCP server for AI assistants Community SDKs (Python `hedgertronic/whoop`, MCP server `shashankswe2020-ux/whoop-mcp`) Continue Hub registry for sharing assistants, blocks, models, rules, prompts, docs, and MCP servers Deel MCP Server for AI agent integration with Claude Code, Cursor, and other MCP clients Dewey MCP Server Documentation MCP server at docs.emnify.com/_mcp/server for AI client integration (Claude Code, Cursor) Downloadable single-file MCP server for Claude Code, Claude Desktop, Cursor, and Windsurf Encore MCP Server exposing services, traces, metrics, source, and docs to AI agents Exa MCP server and Websets MCP server for agent tool integration FastMCP Server, Client, and Apps Fireblocks MCP Server for AI agents Generate MCP Servers Healthie Dev Assist — official MCP server for AI-assisted Healthie development Hosted MCP server exposing Standard, protocols, and docs to AI agents Hosted remote MCP server at https://mcp.apollo.io/mcp over Streamable HTTP with OAuth 2.0 — no API key, no local install Knock MCP server (remote) at mcp.knock.app/mcp — OAuth 2.1 + PKCE; tool groups for resources, commits, debug, data, and docs Local MCP server for the Metrics API (commercelayer/mcp-server-metrics) for AI-agent access Luciq MCP Server with 10 tools across applications, crashes, occurrences, app hangs, bugs, reviews MCP (Model Context Protocol) client — attach any local or remote MCP server as agent tools MCP (Model Context Protocol) tool integration via `autogenstudio/mcp` and `/api/mcp` routes MCP Gateway MCP Gateway and MCP server integrations that expose sandboxes as tools to Claude, ChatGPT, and other MCP clients MCP Integration MCP Server MCP Server Connectivity MCP Server Deployment MCP Server Generation MCP Server Integration MCP Server Monitoring MCP Server Support MCP Server for AI Agents MCP Server for AI-driven Fastly control MCP Server integration for AI-agent workflows MCP Server: hosted at remote.mcp.pipedream.net/v3 (SSE + streamable HTTP)
Showing 40 of 73 declared variants
Every feature here is available over the APIs.io API and to AI agents over MCP. Features is not yet its own endpoint on the v1 API. Reach it through catalog search and the tag graph, or the MCP server.
MCP server
One button, every client — Claude, Cursor, VS Code and the rest.
https://apis.io/mcp
Tools for features
3 MCP tools reach this
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