"An overview or information about file systems" 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.
Contract-change authorization for AI agents: preflight a change to an API or MCP contract, get a signed decision, and verify the receipt offline. Only a granted change can proceed.
Traffic Parrot simulates APIs and messaging. Request or withdraw a trial, read docs, send feedback.
GXEON services, prepaid packs from R$0.99, purchase planning, and agent buyer guidance.
Point Gecko at an OpenAPI spec; get first-call-correct, auth-hidden agent tools.
What is known to be broken in an MCP server or API operation, with the check that found it.
Diagnoses whether an MCP server is reachable, by live HTTP probe.
Free agent tests (no account or payment); paid ping.
Point Claude Code, Qwen Code, Cursor, or any MCP client at https://docs.jmeter.ai/api/mcp and your agent answers JMeter questions grounded in this documentation, with a source link for every answer. Free, no API key, no signup.
Check whether an MCP server answers, what its tools claim, and whether that claim has changed.
Test FIX from Claude, ChatGPT, or Cursor: free sandbox FIX sessions or your own FIXSIM instances.
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
Verify an agent's advertised route, price, payment details, and schemas against its live endpoint.
ACAO star-or-origin, value discarded
Whether an HTTP status is retryable
Retry-After integer-or-date, value discarded
Whether a token is an HTTP method
Remote MCP for 1,500+ APIs. Vault-managed credentials; OAuth or API key. Search, load, and execute.
If-None-Match star-or-etag, value discarded
An MCP server that provides tools to validate an email address using Dilli Email Validation API.
