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
WSO2WSO2 API Manager is an open-source API management platform supporting REST, SOAP, and GraphQL with flexible...7 published contracts83.1CloudflareCloudflare is a global network designed to make everything you connect to the Internet secure, private, fas...26 published contracts81.3PostmanPostman is the world's leading API platform, used by 35+ million developers to design, build, test, documen...21 published contracts80.2ActiveCampaignActiveCampaign is a marketing automation and customer experience platform used by more than 180,000 busines...11 published contracts78.1OktaOkta is the workforce identity incumbent — its Identity Cloud platform (also called the Okta Workforce Iden...2 published contracts76.1MergeMerge is the connective infrastructure for production AI. The Merge Unified API offers one API surface acro...18 published contracts73.9BuildkiteBuildkite is a hybrid CI/CD platform that combines a hosted control plane (pipelines.buildkite.com) with se...2 published contracts72.1NovuNovu is the open-source notification infrastructure for developers. A single REST API and workflow engine r...1 published contract71.6AvalaraAvalara helps businesses of all sizes get tax compliance right. We deliver cloud-based solutions that work ...17 published contracts71.4TaboolaTaboola (NASDAQ: TBLA) is a New-York-headquartered native and discovery advertising company founded in 2007...7 published contracts70.9falfal (Features and Labels, Inc.) is a generative media platform providing the world's fastest API for runnin...3 published contracts68.6KnockKnock is notifications infrastructure as a service — a product and customer messaging platform you use to p...13 published contracts68.6Better StackBetter Stack is an infrastructure monitoring and observability platform that combines uptime monitoring, he...1 published contract68.5SpeakeasySpeakeasy provides an AI control plane platform that lets enterprises govern, secure, and observe AI agents...1 published contract68.3CumulocityCumulocity is an enterprise AIoT (Artificial Intelligence of Things) platform that connects, manages, and a...17 published contracts67.5E2BE2B (e2b-dev) provides secure, isolated cloud sandboxes for AI agents and AI-generated code, built on a for...3 published contracts67.4S&P GlobalS&P Global (NYSE SPGI) is the parent of S&P Global Ratings, S&P Global Market Intelligence, S&P Dow Jones I...5 published contracts66.9
Strong 26 Solid coverage with minor gaps
GitHub CopilotAPIs and resources for GitHub Copilot, an AI pair programmer that helps you write code faster.1 published contract65.8HealthieHealthie is a cloud, API-first EHR and practice management platform purpose-built for digital health startu...1 API65.8Commerce LayerCommerce Layer is the headless, multi-market commerce API used by global brands to sell everywhere — web, m...4 published contracts65.6FireblocksFireblocks is an institutional digital-asset and stablecoin infrastructure company providing MPC-secured cu...7 published contracts65.5FastlyFastly is an edge cloud platform that helps customers create great digital experiences quickly, securely, a...22 published contracts65.2Apollo.ioApollo.io is a sales intelligence and go-to-market platform combining a database of 240M+ contacts and 30M+...6 published contracts65.1DeelDeel is a global workforce platform combining payroll, Employer of Record (EOR), independent contractor man...99 published contracts64.2BoomiBoomi is a leading integration platform that allows organizations to connect applications, data, and people...3 published contracts63.8Tomorrow.ioTomorrow.io is a Boston-based weather intelligence platform combining a global proprietary numerical weathe...2 published contracts63.8PropelAuthPropelAuth is a B2B SaaS authentication and multi-tenant user management platform purpose-built for organiz...3 published contracts63.2APIMaticAPIMatic is a developer experience platform for APIs that specializes in automated SDK generation, API docu...5 APIs63.1parcelLabparcelLab is a Munich-headquartered post-purchase experience platform (parcelLab GmbH) used by retailers in...1 published contract63.0Solo.ioSolo.io is a cloud-native application-networking company founded in 2017 that builds enterprise and open-so...6 published contracts63.0PrismaticThe integration platform for B2B SaaS teams. Prismatic empowers everyone on your team with integration tool...2 APIs62.5StytchStytch is an authentication and identity infrastructure provider. Its Consumer and B2B APIs cover passwordl...4 published contracts61.9FigmaFigma is a collaborative interface design tool with a comprehensive REST API for accessing and manipulating...3 published contracts61.0WalmartWalmart is a multinational retail corporation that operates a chain of hypermarkets, discount department st...27 published contracts60.9ExaExa is a web search API and AI research platform built specifically for LLMs and agents — semantic and keyw...8 published contracts59.0GreyNoise IntelligenceGreyNoise Intelligence collects and analyzes Internet-wide scan and attack traffic from a global network of...1 published contract58.4Arcade.devArcade.dev (formerly Arcade AI) is the MCP runtime for production AI agents — a platform that lets agents s...9 published contracts58.0HyperbolicHyperbolic is an open-access AI cloud and decentralized GPU marketplace serving 200,000+ builders with affo...5 published contracts57.7Leonardo.AILeonardo.AI is an Australian generative-AI company (acquired by Canva in July 2024) offering a Production A...14 published contracts56.9ApidogApidog is an all-in-one API development platform that connects the entire API lifecycle: visual API design,...1 published contract56.7emnifyemnify is a cloud-native global IoT cellular connectivity provider operating its own mobile core and SuperN...1 published contract55.6CivitaiCivitai is the largest open community for Stable Diffusion, SDXL, Flux, and video AI models — hosting over ...2 published contracts55.4PipedreamPipedream is a developer-centric integration platform providing three product lines: Workflows (code-level ...2 published contracts54.7
Developing 29 Usable, with meaningful gaps to close
AgentGatewayAgentGateway is an open-source, AI-native proxy and gateway for routing, observing, and governing traffic t...1 published contract54.2WHOOPWHOOP is a fitness and recovery wearable platform providing a REST API for accessing sleep, recovery, strai...3 published contracts53.8WunderGraphFull Lifecycle API Management for (Federated) GraphQL. Schema Registry, composition checks, analytics, metr...11 APIs53.0EncoreEncore is a backend application framework and developer cloud that lets engineering teams build type-safe d...2 published contracts52.5US Census BureauThe U.S. Census Bureau is the federal statistical agency responsible for producing data about the American ...7 published contracts52.3OxylabsOxylabs is a Lithuanian (Vilnius-based) web intelligence platform providing premium proxy networks (Residen...1 published contract52.1ConektaConekta is a Mexico-based payment processor that lets businesses accept credit and debit cards, OXXO cash v...2 published contracts52.0ToolhouseToolhouse is a Backend-as-a-Service platform for building, deploying, and managing "AI workers" (Toolhouse'...1 published contract51.8APIContextAPIContext (formerly APImetrics) is a synthetic API testing, monitoring and conformance platform. It calls ...6 published contracts51.6BifrostBifrost is a high-performance open-source AI gateway that unifies access to 20+ AI providers through a sing...4 APIs51.5Instabug (Luciq)Instabug — now rebranded as Luciq — is an agentic mobile observability platform covering bug reporting, cra...1 published contract51.0Apollo GraphQLApollo Graph, Inc. — trading publicly as Apollo and Apollo GraphQL — is the San Francisco company behind th...11 APIs50.5Agentic AI FoundationThe Agentic AI Foundation (AAIF) is a Linux Foundation project, announced 9 December 2025, that gives the c...2 published contracts50.4ChoreoWSO2 Choreo is an enterprise-grade Internal Developer Platform (IDP) and application orchestration platform...3 published contracts50.3Bright DataBright Data is an Israeli web data platform and operator of the world's largest legitimate residential prox...11 published contracts50.1CrewAI CloudCrewAI Cloud (CrewAI AMP) is the managed Agent Management Platform for deploying, monitoring, scaling, and ...1 published contract49.71NCE1NCE is a Cologne-headquartered global IoT connectivity provider best known for the IoT Lifetime Flat — a s...15 published contracts48.9ContinueContinue is the open-source AI code assistant for VS Code and JetBrains, distributed under Apache 2.0. The ...1 published contract47.2StackOneStackOne is an AI-powered embedded integration platform as a service (iPaaS) designed to simplify and accel...1 published contract46.6WeatherAPIWeatherAPI.com provides real-time, forecast, historical, marine, future, astronomy, air quality, pollen, sp...2 published contracts45.9WrikeWrike is a collaborative work management platform used by 30,000+ organizations. The Wrike Developer Platfo...1 published contract45.8Aligned NewsAligned News is an AI-native intelligence and news platform that synthesizes AI-powered briefings from 63 c...1 published contract44.8BlockdaemonBlockdaemon is an institutional blockchain infrastructure company founded in 2017 by Konstantin Richter. It...11 APIs44.8APIToolkit (Monoscope)APIToolkit (now Monoscope) is an open-source-friendly API observability and monitoring platform that helps ...1 published contract42.8Epidemic SoundEpidemic Sound is a Stockholm-based royalty-free music and sound effects licensing platform for video creat...2 published contracts42.4ActivepiecesActivepieces is an open-source, no-code automation platform that enables users to streamline workflows by c...1 published contract42.0LangflowLangflow is an open-source low-code visual builder for AI agents, RAG pipelines, and LangChain-based workfl...1 published contract41.4Apache DorisApache Doris is a high-performance, real-time analytical database based on MPP (Massively Parallel Processi...1 API41.0LakeraLakera is an AI security company building runtime defenses for generative AI applications. Its flagship Lak...1 published contract40.1
Thin 16 Limited public surface area
ApifyApify is a full-stack web scraping and browser automation platform that enables developers to build, run, a...6 APIs37.0io.netio.net is a decentralized GPU network for AI compute, built on Solana, that aggregates idle consumer and da...8 APIs35.8WixWix is a cloud-based web development platform that allows users to create professional websites and online ...1 published contract35.7AppiumAppium is an open-source test automation framework governed by the OpenJS Foundation, designed to facilitat...13 APIs35.2ACI.devACI.dev (Aipolabs Agent-Computer Interface) is an open-source tool-calling platform that hooks AI agents in...1 published contract34.9KnitKnit is a unified API platform for B2B products, AI agents, and MCP clients, providing integrations infrast...1 published contract31.7FactoryFactory is an agent-native software development platform whose Droids act as autonomous AI engineers that p...3 APIs31.3Eyevinn TechnologyEyevinn Technology is a Stockholm, Sweden based video streaming consultancy and open source company special...8 APIs30.4SiteMinderSiteMinder is an Australian hotel commerce platform (ASX SDR) that connects hotels with more than 450 onlin...5 APIs30.4SourcegraphSourcegraph is a code intelligence platform that lets developers and AI agents search, navigate, understand...10 APIs30.2IsometricIsometric is a London- and New York-based certifier of climate solutions building an AI-native, science-led...2 published contracts29.7Agent SkillsA collection of resources, APIs, and standards related to AI agent skills and capabilities. Agent skills re...3 APIs29.6GlamaGlama is an all-in-one AI workspace combining an MCP server marketplace and registry, a managed MCP gateway...7 APIs29.6NxNx is a smart, fast, extensible monorepo build system and integrated CI platform created and maintained by ...10 APIs29.2BlissfullyBlissfully was a SaaS management platform providing SaaS discovery, spend optimization, and workflow automa...7 APIs29.0The Philadelphia InquirerThe Philadelphia Inquirer is the largest newspaper in Pennsylvania, owned by the nonprofit Lenfest Institut...3 published contracts27.7
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 ProtocolAI Coding Agent Support (MCP Server)AI voiceover generation via the MCP server (browse artists, generate, status, download)Agent Handler MCP server surface for AI agentsAgents SDK on Durable Objects with WebSockets, scheduling, MCP supportApidog MCP ServerCitySDK JavaScript library and official Census Data API MCP server for AI assistantsCommunity SDKs (Python `hedgertronic/whoop`, MCP server `shashankswe2020-ux/whoop-mcp`)Continue Hub registry for sharing assistants, blocks, models, rules, prompts, docs, and MCP serversDeel MCP Server for AI agent integration with Claude Code, Cursor, and other MCP clientsDewey MCP ServerDocumentation 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 WindsurfEncore MCP Server exposing services, traces, metrics, source, and docs to AI agentsExa MCP server and Websets MCP server for agent tool integrationFastMCP Server, Client, and AppsFireblocks MCP Server for AI agentsGenerate MCP ServersHealthie Dev Assist — official MCP server for AI-assisted Healthie developmentHosted MCP server exposing Standard, protocols, and docs to AI agentsHosted remote MCP server at https://mcp.apollo.io/mcp over Streamable HTTP with OAuth 2.0 — no API key, no local installKnock MCP server (remote) at mcp.knock.app/mcp — OAuth 2.1 + PKCE; tool groups for resources, commits, debug, data, and docsLocal MCP server for the Metrics API (commercelayer/mcp-server-metrics) for AI-agent accessLuciq MCP Server with 10 tools across applications, crashes, occurrences, app hangs, bugs, reviewsMCP (Model Context Protocol) client — attach any local or remote MCP server as agent toolsMCP (Model Context Protocol) tool integration via `autogenstudio/mcp` and `/api/mcp` routesMCP GatewayMCP Gateway and MCP server integrations that expose sandboxes as tools to Claude, ChatGPT, and other MCP clientsMCP IntegrationMCP ServerMCP Server ConnectivityMCP Server DeploymentMCP Server GenerationMCP Server IntegrationMCP Server MonitoringMCP Server SupportMCP Server for AI AgentsMCP Server for AI-driven Fastly controlMCP Server integration for AI-agent workflowsMCP Server: hosted at remote.mcp.pipedream.net/v3 (SSE + streamable HTTP)

Showing 40 of 73 declared variants

Work with this as data

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
  • apis_io_searchSTART HERE — APIs, providers and tags for one query, each with its total.
  • resolveTurn a domain, URL or GitHub org into the provider it belongs to.
  • find_cohortsEvery scored population of providers in the catalog.
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curl "https://apis.io/api/v1/tags/mcp-server"

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