Tools · API Integration
Best MCP servers for API integration
387 MCP servers in the Official MCP Registry do API integration. 191 can be used as a hosted endpoint, with nothing to install, and 315 publish their source code.
| # | Tool | Relevance | Connect | Code | Seen |
|---|---|---|---|---|---|
| 151 | pendnt Human approvals, notifications, inbound webhooks, wake-ups for headless agents. Free trial: /try | In description webhooks | HOSTEDLOCAL | Open | 3d ago |
| 152 | agent-mail Give an AI agent its own inbox — receive email as a webhook, send over a verified domain. | In description webhook | HOSTEDLOCAL | Open | 3d ago |
| 153 | ChatRail Inspect WhatsApp connections, groups, message delivery, schedules and webhooks in ChatRail. | In description webhooks | HOSTEDLOCAL | Open | 3d ago |
| 154 | transcribe Transcribe audio & video to text for AI agents: 100+ languages, speaker labels, webhooks. | In description webhooks | HOSTEDLOCAL | Open | 3d ago |
| 155 | ToolYour Remote MCP: plan, run, verify for SEO/security/ship-gate. Same REST API key; 500 free credits/month. | In description rest api | HOSTEDLOCAL | Open | 3d ago |
| 156 | SmartBear MCP MCP server for AI access to SmartBear tools, including BugSnag, Reflect, Swagger, PactFlow, QTM4J. | In description swagger | HOSTEDLOCAL | Open | 3d ago |
| 157 | mcp-server AI agents read & send email, manage mailboxes, domains and webhooks via the QMailing API. | In description webhooks | HOSTEDLOCAL | Open | 3d ago |
| 158 | Pingfyr Schedule reminders for AI agents via email, webhook, Slack, Discord, Telegram, or Google Calendar. | In description webhook | HOSTEDLOCAL | Open | 3d ago |
| 159 | htag-docs Public HTAG discovery for MCP tools, API endpoints, OpenAPI ops, and agents. | In description openapi | HOSTEDLOCAL | Open | 3d ago |
| 160 | Hooklistener Webhook, email, WebSocket and tunnel testing for AI agents: capture, wait, verify, replay. | In description webhook | HOSTEDLOCAL | Open | 3d ago |
| 161 | furrow-forms Form backend an agent runs end to end: provision forms, snippets, spam, signed webhooks. | In description webhooks | HOSTEDLOCAL | Open | 3d ago |
| 162 | Cooper Email Email inboxes for AI agents: create an address, send, receive via webhook, and full-text search. | In description webhook | HOSTEDLOCAL | Open | 3d ago |
| 163 | AI SENSE Free Public Tools 32 public tools for queues, inboxes, webhooks, approvals, DNS names and temporary workflows. | In description webhooks | HOSTEDLOCAL | Open | 3d ago |
| 164 | unulu AI agent website builder. Create and publish link-in-bio sites via MCP or REST API. | In description rest api | HOSTEDLOCAL | Open | 3d ago |
| 165 | mcp Email for AI agents: inboxes, send/reply/forward, search, threads, webhooks — 21 SentFromAI tools. | In description webhooks | HOSTEDLOCAL | Open | 3d ago |
| 166 | HAPI MCP Server HAPI MCP server: Dynamically exposes OpenAPI REST APIs as MCP tools for AI assistants | In description openapi | HOSTEDLOCAL | Open | 3d ago |
| 167 | Sendora Sendora's docs and API for coding agents: send test mail, read the log, set up webhooks. | In description webhooks | HOSTEDLOCAL | — | 1d ago |
| 168 | uidwatch Swiss bankruptcy, liquidation and register alerts for a UID list. Source: SHAB. Webhook, API, email. | In description webhook | HOSTEDLOCAL | — | 2d ago |
| 169 | finhay-mcp Vietnam stock market data & portfolios via Finhay Securities OpenAPI. | In description openapi | HOSTEDLOCAL | — | 2d ago |
| 170 | Latitude 10 Agent Readiness Scores how well AI agents will use your API, 0-100, from its OpenAPI spec. Free and read-only. | In description openapi | HOSTEDLOCAL | — | 2d ago |
| 171 | Ghosty Studio docs Docs de Ghosty Studio para agentes: búsqueda, páginas en markdown, índice y OpenAPI. Sin auth. | In description openapi | HOSTEDLOCAL | — | 2d ago |
| 172 | Solana Wallet Tracker & Alerts Solana wallet tracker & alerts: real-time activity webhooks, balances, tx history. Free. | In description webhooks | HOSTEDLOCAL | — | 2d ago |
| 173 | Hilt Pay Agent Commerce x402 V2 payment-to-access on Solana USDC with receipts, entitlements, atomic metering and webhooks. | In description webhooks | HOSTEDLOCAL | — | 2d ago |
| 174 | monit.rs Schema-aware API monitoring: diff OpenAPI specs for breaking changes, manage endpoints. | In description openapi | HOSTEDLOCAL | — | 2d ago |
| 175 | Enviadores Multi-carrier shipping in Mexico: grouped rates, labels, tracking, pickups, address book, webhooks. | In description webhooks | HOSTEDLOCAL | — | 2d ago |
| 176 | Hookjar Public webhook inboxes for agents. Receive OAuth redirects, payment callbacks and CI notifications. | In description webhook | HOSTEDLOCAL | — | 2d ago |
| 177 | Sigrex Create and manage trading strategies, bots, webhooks and signals from any MCP client. | In description webhooks | HOSTEDLOCAL | — | 2d ago |
| 178 | HeyReach Automate your HeyReach workspace — manage campaigns, leads, unibox, webhooks, and pull analytics. | In description webhooks | HOSTEDLOCAL | — | 2d ago |
| 179 | Communicate Developer Docs Read-only access to Communicate developer guides, OpenAPI summaries, and support contact. | In description openapi | HOSTEDLOCAL | — | 2d ago |
| 180 | cron-pilot Scheduled HTTP requests and shell commands with retries, timeouts, and webhook alerts. | In description webhook | HOSTEDLOCAL | — | 2d ago |
| 181 | oasdiff Detect breaking changes, generate changelogs, diff, and validate OpenAPI specs. | In description openapi | HOSTEDLOCAL | — | 2d ago |
| 182 | datamcp — Hosted Model Context Protocol for Databases, APIs, and Agent Memory PostgreSQL, MySQL, OpenAPI/Swagger, and shared Agent Memory with scoped access. | In description openapi | HOSTEDLOCAL | — | 2d ago |
| 183 | Bitrix MCP MCP server that delivers up-to-date Bitrix24 REST API documentation. | In description rest api | HOSTEDLOCAL | — | 3d ago |
| 184 | sentrydock Search indexed news, monitor topics and get signed webhook alerts. OAuth and API key access. | In description webhook | HOSTEDLOCAL | — | 3d ago |
| 185 | ArcadeOps Public Discovery Read-only ArcadeOps discovery for developer docs, OAuth, OpenAPI and synthetic sandbox. | In description openapi | HOSTEDLOCAL | — | 3d ago |
| 186 | pollbolt AI-native survey & form builder. Manage surveys, responses, analytics, and webhooks. | In description webhooks | HOSTEDLOCAL | — | 3d ago |
| 187 | DataScoop public data Official UK, US and Australia public datasets as filtered CSV, REST API and MCP for AI agents. | In description rest api | HOSTEDLOCAL | — | 3d ago |
| 188 | Air Pipe Build, validate, deploy — HTTP APIs, cron jobs, webhooks and MCP tools — from your AI client. | In description webhooks | HOSTEDLOCAL | — | 3d ago |
| 189 | AstroWay Platform Webhooks, streaming and the AI interpretation endpoints. | In description webhooks | HOSTEDLOCAL | — | 3d ago |
| 190 | ZenVault Wake-ups, webhook inboxes, TTL memory, watches and human approval for agents. Paid per call. | In description webhook | HOSTEDLOCAL | — | 3d ago |
| 191 | zerm Agent utility belt: memory, locks, webhook inboxes, timers, DNS, email, URL, timezone, cron | In description webhook | HOSTEDLOCAL | — | 3d ago |
| 192 | catchr Instant no-signup webhook & HTTP-request inspector for testing webhooks and agent tool-callbacks. | In description webhook | HOSTEDLOCAL | — | 3d ago |
| 193 | Datoka Hooks Public webhook relay with signed observations, retries and verified receivers. Self-service beta. | In description webhook | HOSTEDLOCAL | — | 3d ago |
| 194 | Routebase Design, mock, test, document and monitor your APIs from one living OpenAPI spec. | In description openapi | HOSTEDLOCAL | — | 3d ago |
| 195 | Hookden Webhook capture bins for agents: get a URL, wait for webhooks, set replies, verify signatures. | In description webhook | HOSTEDLOCAL | — | 3d ago |
| 196 | Oakstack Cron jobs with retries and run logs, plus a webhook relay that stores, forwards, and replays events. | In description webhook | HOSTEDLOCAL | — | 3d ago |
| 197 | Website Change Monitor Monitor public pages and JSON endpoints after agents disconnect, with polling and webhooks. | In description webhooks | HOSTEDLOCAL | — | 3d ago |
| 198 | croncool Inspect scheduled jobs, runs, durable workflows, and webhook health; run one confirmed job. | In description webhook | HOSTEDLOCAL | — | 3d ago |
| 199 | wapiworld Inspect Wapiworld sender and webhook health, and send one explicitly confirmed WhatsApp text. | In description webhook | HOSTEDLOCAL | — | 3d ago |
| 200 | discoverGPT REST API + MCP gateway for AI commerce: search, catalog enrichment, feeds/GEO, and virtual try-on. | In description rest api | HOSTEDLOCAL | — | 3d ago |
FAQ
How many MCP servers are there for API integration?
Electra Index lists 387 active MCP servers for API integration from the Official MCP Registry. 191 offer a hosted endpoint and 315 publish their source code.
Is there a hosted MCP server for API integration, with nothing to install?
Yes. pendnt, agent-mail and ChatRail declare a remote endpoint you add to your assistant's MCP settings.
Is there a ready-made AI agent for API integration instead?
Yes. If you prefer a finished product to plugging tools into your own assistant, Jamie, MeetGeek and Ramp (AI agents) do this out of the box.
How this list is ordered: a tool comes first when the use case appears in its name rather than only in its description, then when it offers a hosted endpoint, then when its source code is public, then by how recently our robot saw it in the Official MCP Registry. The match to API Integration comes from the publisher's description (keyword method), not from a test of the tool. Only active tools with a real description are listed. No tool pays to appear here.