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API Test MCP

Call the real API and check the response against your OpenAPI spec.

Connector by thisis-najeeb · GitHub account verified by the MCP Registry

IndexedMITLocal (stdio)
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Works with Claude Code, Codex, VS Code, Cursor, Windsurf, Claude Desktop. Read the repository before you give any tool access to your data.

npx agentmarket install connector/thisis-najeeb-api-test-mcp

Asks which of your tools to add it to (Claude Code, Codex, Cursor, VS Code, Windsurf, Gemini CLI, Claude Desktop) and shows the change first. See https://agentmart.dev/cli.

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About

Call the real API and check the response against your OpenAPI spec.

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Permissions

What this server can do and what it asks for, from its tool list and install config. Checked Oct 25, 2026.

Tools
4 read · 3 write · 0 delete · 1 not yet classified
Secrets
None asked for
Install scripts
Not scanned yet
Runs as
Node.js package

Tools by what they do 8

Read from the source code; the running server may list different tools.

Read 4 · Look things up without changing anything.

  • check_health
  • diff_api_specs
  • list_endpoints
  • validate_response

Write 3 · Create, change, send or run things.

  • call_endpoint
  • run_all_tests
  • test_endpoint

Not yet classified 1 · We could not tell from the name and description.

  • load_api_spec

Files it touches

  • Any path the agent passes to its tools

Tools (8)

Read from the source code; the running server may differ. Descriptions are the server’s own words; hidden characters are shown as [U+…].

  • call_endpointCall a real API endpoint

    Make an actual HTTP call to a documented endpoint and return the real status, headers, and body. Does not validate the response — use test_endpoint if you also want schema validation.

  • check_healthPing a set of endpoints and report reachability/latency

    One-shot health check: calls each given endpoint (or, if none given, every parameter-free GET in the loaded spec) and reports whether it responded, its status code, and latency. Useful for a quick 'is the API up' pass, e.g. before a demo or as part of CI.

  • diff_api_specsDiff two versions of an OpenAPI spec for breaking changes

    Compare two OpenAPI/Swagger specs (each a URL or local file path — e.g. an old tag vs. the current main) and report added/removed endpoints plus request/response schema changes, flagging which ones are likely to break existing clients (removed fields, newly-required fields, type changes, removed enum values) versus safe additive changes. Does not affect the spec currently loaded for the other tools.

  • list_endpointsList loaded endpoints

    List every endpoint (method + path) from the currently loaded API spec.

  • load_api_specLoad an OpenAPI/Swagger spec

    Load and fully dereference an OpenAPI/Swagger spec from a URL or local file path (JSON or YAML). Call this first. Returns the API title, servers, and every documented endpoint.

  • run_all_testsRun a contract-test pass across the whole API

    Best-effort run across every GET endpoint that needs no required parameters: calls each one for real and validates the response against the documented schema. Endpoints needing parameters are listed as skipped (use test_endpoint for those individually), and DELETE/OPTIONS/HEAD are never auto-run. Set includeMutating: true to also auto-generate example params/bodies from the schema and attempt POST/PUT/PATCH endpoints — off by default because that can create or modify real data on the live API.

  • test_endpointCall and validate an endpoint in one step

    Call a documented endpoint with real parameters, then validate the real response against its documented schema. Returns pass/fail plus the specific mismatches found. This is the main tool for 'does this endpoint actually work as documented'.

  • validate_responseValidate a response against the spec

    Check a response body against the JSON schema documented for a given method + path + status code.

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Last commit
Aug 31, 2026 (1 month ago)
Last release
Aug 31, 2026 (1 month ago)

From GitHub (fetched Oct 24, 2026).

Details

Registry name
io.github.thisis-najeeb/api-test-mcp
Version
1.0.2
Auth
No auth
Packages
npm api-test-mcp
License
MIT
Repository
github.com/thisis-najeeb/api-test-mcp
First seen
Oct 24, 2026
Last checked
Oct 24, 2026
Source
Official MCP Registrygithub-graphql
Cite this page

API Test MCP. Agent Mart. https://agentmart.dev/connectors/thisis-najeeb-api-test-mcp (last updated 2026-10-24)