"QA review sentinel test marker" matching MCP connectors:
GET /v1/connectors – MCP directory API referenceMatching Connector Tools:
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.
Deterministic release-compatibility preflight for OPC UA NodeSet2 XML.
Is this x402/MPP API safe to pay? $0.001 preflight, fixes, a $0.25 test purchase. Free quick check.
Test and debug your AI agent's Web Bot Auth (RFC 9421) signature: is it valid, and what to fix?
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.
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.
Trickl for AI assistants: full docs, setup plans, and sandbox tools to test purchases end to end.
Free tools: x402 endpoint directory + probe, on-chain x402 demand signal, sudoku, API pricing.
Test any x402 paid URL without paying: 402, PAYMENT-REQUIRED, USDC, amounts, payTo, EIP-712, CORS.
Webhook, email and DNS inboxes for AI agents to capture callbacks and test integrations.
Web search for agents, one x402 payment: real results, provider failover, signed receipt. $0.01.
Test FIX from Claude, ChatGPT, or Cursor: free sandbox FIX sessions or your own FIXSIM instances.
Production proofs for breaking JSON Schema/MCP changes; UNKNOWN/NO_WITNESS_FOUND not compatible.
MCP server that delivers up-to-date Bitrix24 REST API documentation.
40+ developer tools from Context7, Code Runner, Python Execute, NPM Sentinel, PlantUML, and Microsoft Learn. Docs lookup, code execution, security scanning. Starts at $0.01/call. Get your API key at app.xpay.sh or xpay.tools
Whether a token is an HTTP method
Swagger Petstore API (v1.0.27) as MCP for testing and prototyping powered by the HAPI MCP server
Hands-on test results for 560+ remote MCP connectors: does it work, how to sign in, what breaks.
Ephemeral HTTPS inbox for bots: mint URL, capture POSTs, list JSON. TEST. https://inbox.kymac.co
