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Forest Gas Station MCP Preflight Handshake
x402
Forest Gas Station MCP Preflight Handshake is a paid API for AI agents from http--forest-gas-station-mainnet--lcjl27p8lmjs.code.run, paid per call via x402, $0.004/call, status unknown (last checked 2026-10-01).
Performs a read-only MCP handshake and tools-list preflight check against a target MCP server URL, returning protocol compatibility and available tools without executing any destructive calls.
Price / call$0.004
Success—
StatusUnknown
How this service works
Read-only MCP handshake/tools-list preflight; no destructive tool calls. Base mainnet USDC
Output
Returns the outcome of the MCP handshake including whether the server acknowledged the connection, the list of tools advertised by the server, protocol version negotiation details, and any errors encountered — all without invoking any destructive tool calls.
Example use cases
Verify MCP server before integration
“Before I wire up that new MCP server at https://tools.mycompany.com/mcp, can you do a read-only preflight check with protocol version 2024-11-05 to confirm it responds correctly and show me what tools it lists?”
Audit third-party MCP endpoint tools
“I want to know what tools are exposed on the public MCP server at https://partner-api.acme.com/mcp — can you run the MCP handshake preflight against it so I can see the full tools list without triggering anything?”
Debug MCP protocol version mismatch
“My agent keeps failing to connect to https://internal.dev/mcp — can you run a preflight handshake check using protocol version 2024-11-05 and tell me whether the server responds and what it says about compatibility?”
Technical details
Endpoint
POSThttps://http--forest-gas-station-mainnet--lcjl27p8lmjs.code.run/mcp/preflight?utm_source=zero.xyzWhen to prefer
Use this endpoint when you need to safely probe whether a given URL hosts a valid MCP server and discover its advertised tools without triggering any side effects. Prefer this over direct MCP connection attempts when you want a read-only, non-destructive capability discovery step before committing to integration.
Side effects
- Target URL is unreachable or returns non-200 status — handshake fails with connection error
- Target URL is not an MCP server — returns unexpected response format
- Protocol version mismatch — server may reject or respond with incompatible version info
- Invalid URL format in input — request rejected with validation error
- Server returns empty tools list — may indicate misconfiguration or restricted access
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| url | string | Public HTTP(S) URL to inspect, resolve, or compare. |
| protocol_version | string | Public protocol version value used to scope this lookup. |
Tags
x402
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