Feature

MCP Server

Model Context Protocol server for AI agents.

106 providers 552 APIs 84 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.

106 API providers on the APIs.io network offer mcp server. The highest-rated are Commerce Layer, Vapi, Novu, Knock, Taboola.

Providers

Ranked by API Evangelist rating — Exemplar and Strong are expanded by default.

Exemplar 12 Complete, well-documented, and agent-ready
Commerce LayerCommerce Layer is the headless, multi-market commerce API used by global brands to sell everywhere — web, m...3 APIs72.5VapiVapi is a San Francisco-based voice AI platform that lets developers build real-time, low-latency voice age...15 APIs72.5NovuNovu is the open-source notification infrastructure for developers. A single REST API and workflow engine r...1 API72.1KnockKnock is notifications infrastructure as a service — a product and customer messaging platform you use to p...13 APIs69.3TaboolaTaboola (NASDAQ: TBLA) is a New-York-headquartered native and discovery advertising company founded in 2007...7 APIs68.9HealthieHealthie is a cloud, API-first EHR and practice management platform purpose-built for digital health startu...1 API68.5falfal (Features and Labels, Inc.) is a generative media platform providing the world's fastest API for runnin...3 APIs68.2S&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 APIs67.3PostmanPostman is the world's leading API platform, used by 35+ million developers to design, build, test, documen...21 APIs67.2dLocaldLocal (NASDAQ: DLO) is a Uruguay-headquartered emerging-markets payment infrastructure platform connecting...4 APIs66.9Tomorrow.ioTomorrow.io is a Boston-based weather intelligence platform combining a global proprietary numerical weathe...2 APIs66.9Inworld AIInworld AI is a real-time voice AI infrastructure provider. The Inworld platform delivers text-to-speech, s...6 APIs66.7
Strong 44 Solid coverage with minor gaps
ActiveCampaignActiveCampaign is a marketing automation and customer experience platform used by more than 180,000 busines...9 APIs66.3BuildkiteBuildkite is a hybrid CI/CD platform that combines a hosted control plane (pipelines.buildkite.com) with se...2 APIs65.9PropelAuthPropelAuth is a B2B SaaS authentication and multi-tenant user management platform purpose-built for organiz...3 APIs65.9E2BE2B (e2b-dev) provides secure, isolated cloud sandboxes for AI agents and AI-generated code, built on a for...3 APIs65.6GitHub CopilotAPIs and resources for GitHub Copilot, an AI pair programmer that helps you write code faster.1 API65.5ReductoReducto is an AI document-parsing platform that turns unstructured PDFs, images, spreadsheets, slides, and ...10 APIs65.5PrismaticThe integration platform for B2B SaaS teams. Prismatic empowers everyone on your team with integration tool...2 APIs64.4fireblocksFireblocks is an institutional digital-asset and stablecoin infrastructure company providing MPC-secured cu...7 APIs64.2CloudflareCloudflare is a global network designed to make everything you connect to the Internet secure, private, fas...24 APIs63.4CumulocityCumulocity is an enterprise AIoT (Artificial Intelligence of Things) platform that connects, manages, and a...17 APIs63.2SensibleSensible is a document-automation API platform that extracts structured data from PDFs, images, spreadsheet...4 APIs62.8BoomiBoomi is a leading integration platform that allows organizations to connect applications, data, and people...3 APIs61.5Apollo.ioApollo.io is a sales intelligence and go-to-market platform combining a database of 240M+ contacts and 30M+...1 API61.1AvalaraAvalara helps businesses of all sizes get tax compliance right. We deliver cloud-based solutions that work ...17 APIs61.0OktaOkta is the workforce identity incumbent — its Identity Cloud platform (also called the Okta Workforce Iden...1 API61.0emnifyemnify is a cloud-native global IoT cellular connectivity provider operating its own mobile core and SuperN...1 API60.8GreyNoise IntelligenceGreyNoise Intelligence collects and analyzes Internet-wide scan and attack traffic from a global network of...1 API60.7HyperbolicHyperbolic is an open-access AI cloud and decentralized GPU marketplace serving 200,000+ builders with affo...5 APIs60.7Solo.ioSolo.io is a cloud-native application-networking company founded in 2017 that builds enterprise and open-so...5 APIs60.7FastlyFastly is an edge cloud platform that helps customers create great digital experiences quickly, securely, a...22 APIs60.6RecraftRecraft is a London-based AI design platform — founded in 2023 by Anna Veronika Dorogush (creator of the Ca...1 API60.1MergeMerge is the connective infrastructure for production AI. The Merge Unified API offers one API surface acro...10 APIs59.9WHOOPWHOOP is a fitness and recovery wearable platform providing a REST API for accessing sleep, recovery, strai...2 APIs59.8Leonardo.AILeonardo.AI is an Australian generative-AI company (acquired by Canva in July 2024) offering a Production A...14 APIs59.4FigmaFigma is a collaborative interface design tool with a comprehensive REST API for accessing and manipulating...3 APIs59.3parcelLabparcelLab is a Munich-headquartered post-purchase experience platform (parcelLab GmbH) used by retailers in...1 API59.1WSO2WSO2 API Manager is an open-source API management platform supporting REST, SOAP, and GraphQL with flexible...7 APIs58.6Agentic AI FoundationThe Agentic AI Foundation (AAIF) is a Linux Foundation project, announced 9 December 2025, that gives the c...6 APIs57.7HunterHunter.io is an email-intelligence and outbound platform that finds, verifies, and enriches professional em...8 APIs57.5CivitaiCivitai is the largest open community for Stable Diffusion, SDXL, Flux, and video AI models — hosting over ...2 APIs57.4ParagonParagon is the Integration Infrastructure Platform for B2B SaaS and AI products. The platform combines Conn...2 APIs57.2ExaExa is a web search API and AI research platform built specifically for LLMs and agents — semantic and keyw...7 APIs56.8LakeraLakera is an AI-native security platform that protects GenAI applications, agents, and workforces from prom...2 APIs56.7ContinueContinue is the open-source AI code assistant for VS Code and JetBrains, distributed under Apache 2.0. The ...1 API56.3Arcade.devArcade.dev (formerly Arcade AI) is the MCP runtime for production AI agents — a platform that lets agents s...9 APIs56.2PipedreamPipedream is a developer-centric integration platform providing three product lines: Workflows (code-level ...2 APIs56.1TruliooTrulioo is a Vancouver-based global identity verification platform that operates GlobalGateway, a single-AP...1 API56.1AgentGatewayAgentGateway is an open-source, AI-native proxy and gateway for routing, observing, and governing traffic t...1 API55.8ConektaConekta is a Mexico-based payment processor that lets businesses accept credit and debit cards, OXXO cash v...1 API55.7EncoreEncore is a backend application framework and developer cloud that lets engineering teams build type-safe d...2 APIs55.4WalmartWalmart is a multinational retail corporation that operates a chain of hypermarkets, discount department st...27 APIs55.4DeelDeel is a global workforce platform combining payroll, Employer of Record (EOR), independent contractor man...8 APIs55.0SmitherySmithery is an MCP server registry and hosting platform that lets developers discover, publish, and connect...2 APIs54.5US Census BureauThe U.S. Census Bureau is the federal statistical agency responsible for producing data about the American ...7 APIs54.4
Developing 27 Usable, with meaningful gaps to close
OxylabsOxylabs is a Lithuanian (Vilnius-based) web intelligence platform providing premium proxy networks (Residen...1 API54.1ApidogApidog is an all-in-one API development platform that connects the entire API lifecycle: visual API design,...1 API54.0SocketSocket is a developer-first supply-chain security platform that protects applications from malicious depend...15 APIs53.91NCE1NCE is a Cologne-headquartered global IoT connectivity provider best known for the IoT Lifetime Flat — a s...8 APIs53.7Bright DataBright Data is an Israeli web data platform and operator of the world's largest legitimate residential prox...10 APIs53.3WunderGraphFull Lifecycle API Management for (Federated) GraphQL. Schema Registry, composition checks, analytics, metr...11 APIs53.2ToolhouseToolhouse is a Backend-as-a-Service platform for building, deploying, and managing "AI workers" (Toolhouse'...1 API52.9CrewAI CloudCrewAI Cloud (CrewAI AMP) is the managed Agent Management Platform for deploying, monitoring, scaling, and ...1 API52.7SpeakeasyThe platform to Build APIs your users love. Best in class API tooling for robust SDKs, API docs, Terraform ...1 API51.7StytchStytch is an authentication and identity infrastructure provider. Its Consumer and B2B APIs cover passwordl...3 APIs51.5APIMaticAPIMatic is a developer experience platform for APIs that specializes in automated SDK generation, API docu...1 API51.0Apollo GraphQLApollo Graph, Inc. — trading publicly as Apollo and Apollo GraphQL — is the San Francisco company behind th...11 APIs50.9BifrostBifrost is a high-performance open-source AI gateway that unifies access to 20+ AI providers through a sing...4 APIs50.0WeatherAPIWeatherAPI.com provides real-time, forecast, historical, marine, future, astronomy, air quality, pollen, sp...1 API50.0Instabug (Luciq)Instabug — now rebranded as Luciq — is an agentic mobile observability platform covering bug reporting, cra...1 API49.4ChoreoWSO2 Choreo is an enterprise-grade Internal Developer Platform (IDP) and application orchestration platform...3 APIs49.1Aligned NewsAligned News is an AI-native intelligence and news platform that synthesizes AI-powered briefings from 63 c...1 API48.5StackOneStackOne is an AI-powered embedded integration platform as a service (iPaaS) designed to simplify and accel...1 API47.6BlockdaemonBlockdaemon is an institutional blockchain infrastructure company founded in 2017 by Konstantin Richter. It...11 APIs47.5WrikeWrike is a collaborative work management platform used by 30,000+ organizations. The Wrike Developer Platfo...1 API47.0ActivepiecesActivepieces is an open-source, no-code automation platform that enables users to streamline workflows by c...1 API46.3APIToolkit (Monoscope)APIToolkit (now Monoscope) is an open-source-friendly API observability and monitoring platform that helps ...1 API46.3Epidemic SoundEpidemic Sound is a Stockholm-based royalty-free music and sound effects licensing platform for video creat...1 API44.5Authorize.netAuthorize.net is a leading payment gateway providing secure online payment processing for merchants. It off...1 API43.5LakeraLakera is an AI security company building runtime defenses for generative AI applications. Its flagship Lak...1 API42.3Apache DorisApache Doris is a high-performance, real-time analytical database based on MPP (Massively Parallel Processi...1 API41.4HashiCorp VaultHashiCorp Vault is an open source tool for securely storing and accessing secrets. A secret is anything you...9 APIs40.9
Thin 20 Limited public surface area
LangflowLangflow is an open-source low-code visual builder for AI agents, RAG pipelines, and LangChain-based workfl...1 API39.1FernFern is an SDK generation and documentation platform designed for the AI era. It transforms OpenAPI, AsyncA...1 API38.7ApifyApify is a full-stack web scraping and browser automation platform that enables developers to build, run, a...6 APIs37.9ACI.devACI.dev (Aipolabs Agent-Computer Interface) is an open-source tool-calling platform that hooks AI agents in...1 API37.5AppiumAppium is an open-source test automation framework governed by the OpenJS Foundation, designed to facilitat...13 APIs37.4WixWix is a cloud-based web development platform that allows users to create professional websites and online ...1 API35.7io.netio.net is a decentralized GPU network for AI compute, built on Solana, that aggregates idle consumer and da...8 APIs35.6KnitKnit is a unified API platform for B2B products, AI agents, and MCP clients, providing integrations infrast...1 API34.4Eyevinn TechnologyEyevinn Technology is a Stockholm, Sweden based video streaming consultancy and open source company special...8 APIs32.9Better StackBetter Stack is a comprehensive infrastructure monitoring and observability platform that combines uptime m...6 APIs32.4FactoryFactory is an agent-native software development platform whose Droids act as autonomous AI engineers that p...3 APIs32.0SourcegraphSourcegraph is a code intelligence platform that lets developers and AI agents search, navigate, understand...10 APIs30.9GlamaGlama is an all-in-one AI workspace combining an MCP server marketplace and registry, a managed MCP gateway...7 APIs30.3Agent SkillsA collection of resources, APIs, and standards related to AI agent skills and capabilities. Agent skills re...3 APIs30.2The Philadelphia InquirerThe Philadelphia Inquirer is the largest newspaper in Pennsylvania, owned by the nonprofit Lenfest Institut...3 APIs29.8SiteMinderSiteMinder is an Australian hotel commerce platform (ASX SDR) that connects hotels with more than 450 onlin...5 APIs29.2IsometricIsometric is a London- and New York-based certifier of climate solutions building an AI-native, science-led...2 APIs28.6BlissfullyBlissfully was a SaaS management platform providing SaaS discovery, spend optimization, and workflow automa...7 APIs28.4CasdoorCasdoor is an open-source, AI-first identity and access management (IAM) and MCP gateway authentication ser...1 API28.2FastMCPFastMCP is the fast, Pythonic framework for building Model Context Protocol (MCP) servers, clients, and app...6 APIs27.8
Emerging 3 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)ActionKit Universal API + MCP server for AI agentsAgent Handler MCP server surface for AI agentsAgents SDK on Durable Objects with WebSockets, scheduling, MCP supportApidog MCP ServerBuilt-in dLocal MCP Server for LLM-assisted integrationCitySDK 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 installHunter MCP server and ChatGPT MCP server for agentic email-finder workflowsKnock 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 SupportMCP Server for AI AgentsMCP Server for AI-driven Fastly control

Showing 40 of 84 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/search?q=mcp-server&limit=10"
Everything under a tag
curl "https://apis.io/api/v1/tags/mcp-server"

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