MCP For Claude Marketplace
ReqBin

ReqBin MCP Connector for Claude

A+

Test and verify API requests using ReqBin Echo — send JSON payloads and inspect the echoed response to debug request structures.

1 tools Official Updated Jun 28, 2026 Official Vinkius Partner
More Details Connect to Claude

Connect to ReqBin to validate your API request structures and verify JSON payloads through a reliable echo service. This server allows your AI agent to simulate API interactions and inspect how data is formatted.

What you can do

  • Echo JSON Payloads — Send custom JSON data including IDs, quantities, and prices to see exactly how an API receives them.
  • Request Verification — Debug your agent's data formatting by inspecting the returned echo response in real-time.
  • Default Testing — Quickly test connectivity with standard sample data if no specific parameters are provided.

How it works

  1. Subscribe to this server
  2. No complex API keys are required for the public echo endpoint
  3. Start verifying your API payloads from Claude, Cursor, or any MCP-compatible client

Who is this for?

  • Developers — instantly verify that your AI agent is constructing JSON objects correctly before connecting to production APIs.
  • QA Engineers — test request/response cycles and data types (numbers, prices, IDs) without setting up a custom mock server.
  • Integrators — ensure that payload structures match expected schemas during the development of complex tool-calling workflows.
api-testingjson-echodebuggingrequest-validationhttp-client

1 tools expose this connector's capabilities to your AI agent.

echo_post_json

Echo JSON data back from ReqBin

See how to talk to your AI agent using ReqBin.

Send a test JSON payload to ReqBin with Id 123 and Price 50.00.

I've sent the payload to ReqBin Echo. The server responded with the echoed data: Id 123 and Price 50.00. This confirms the request structure was sent correctly.

Verify my request structure by echoing a JSON object with Quantity 5.

Request sent. ReqBin Echo returned the following JSON: { "Quantity": 5 }. Your agent is correctly formatting the quantity field.

Run a default ReqBin echo test to check connectivity.

Connectivity test successful. I sent a default payload and ReqBin Echo successfully returned Id 78912, Quantity 1, and Price 18.00.

Yes! Use the `echo_post_json` tool. You can optionally provide an Id, Quantity, and Price. The server will send these to ReqBin and return the echoed JSON so you can verify the structure.

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