"Google Cloud Platform (GCP)" matching MCP connectors:
GET /v1/connectors – MCP directory API referenceMatching Connector Tools:
Check an A2A agent before you delegate, or an MCP server's measured conduct. Free, no key.
Turn any public webpage into JSON with AI, save it as a live JSON API, and call it from your agent.
Audits any URL for HTTP 402 x402 V2 compliance, PAYMENT-REQUIRED headers, Bazaar schema, and MCP.
Traffic Parrot simulates APIs and messaging. Request or withdraw a trial, read docs, send feedback.
A webhook inbox for agents: one call returns a live URL. Mock, verify, inspect and replay.
Remote MCP that evaluates one public HTTPS URL for WebMCP readiness: intent, tools observed, what to add, what never to expose.
Webhook, email, WebSocket and tunnel testing for AI agents: capture, wait, verify, replay.
Retrieve YouTube transcripts with timestamps, native captions and asynchronous generation when captions are unavailable. Requires a Capslane API key.
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
AI-Powered Java/Spring Boot code review API with Alipay AI Pay support.
AI-callable tools for API mocking, testing, monitoring, security, and automation.
Deploy production REST APIs from JSON schemas in seconds. Manage projects, schemas, and deployments.
Apideck Unified API MCP — 330 tools across 200+ SaaS connectors (accounting, CRM, HRIS, ATS).
Evidence-cited machine-readable contracts for how agent platform APIs really behave
Free tools: x402 endpoint directory + probe, on-chain x402 demand signal, sudoku, API pricing.
Send and debug webhooks — applications, endpoints, messages, delivery attempts and replays.
Sanctions API docs and request validation, with account-linked synthetic sandbox testing.
Free MCP, API auth, webhook and schema diagnostics with bounded checks and safe quote routing.
Diagnoses whether an MCP server is reachable, by live HTTP probe.
Check whether an MCP server answers, what its tools claim, and whether that claim has changed.
