"Mock Service Worker" matching MCP connectors:
GET /v1/connectors – MCP directory API referenceMatching Connector Tools:
A webhook inbox for agents: one call returns a live URL. Mock, verify, inspect and replay.
API documentation drifts away from the running service, so consumers integrate against a contract nobody keeps. Routebase keeps API design, testing, mocking and documentation on one living source of truth, and this MCP server exposes that workspace to AI agents. Agents can design endpoints, write and run test suites, manage mock servers and publish documentation, always under the permissions of the connected Routebase account.
Free platform to test MCP clients without installing anything. Create mock tools with dynamic templates, configurable delays, conditions (if/then), and response sequences. Supports JSON-RPC 2.0 over Streamable HTTP. Built-in text_echo and json_echo tools. Rate-limited tiers: anonymous (5 calls/min, 1 mock tool), registered (10 calls/min, 4 mock tools), premium (60 calls/min, unlimited). Zero setup — no install, no registration required. More info: https://www.testmcp.dev
Mock REST APIs, uptime monitors + heartbeats, live badges/charts/QR/OG images. Seed, query, write.
Free agent-service discovery, OpenAPI document checks, and receipt verification. No API key needed.
Ephemeral mailboxes and a mock OAuth IdP for testing email and auth flows — 39 API-driven tools covering mailboxes, mails, attachments, domains, teams, and mock identities.
Cloudflare Workers MCP server: api-mock-server
Simceptor is an AI-native Mock API simulation platform with a built-in MCP server. It enables AI agents to create, inspect, update, and test dynamic mock APIs, conditional response rules, stateful session simulations, and network latency directly from context.
DummyJSON mock REST: products, users, posts, recipes, todos. Keyless test data.
AI-native mock API server with MCP. Create REST/SOAP mocks from Claude, Cursor, or Windsurf.
