Tools / Web & data
HTTP Error Explainer $0.001 / call
What an HTTP status means and how to fix it.
GET /v1/http-errors/{code}Returns structured guidance for an HTTP status code: what it means, common causes, concrete fixes, and whether the request is safe to retry. Built so an agent hitting an error knows what to do next.
Parameters
code required | HTTP status code, e.g. 429 |
Example
macOS / Linuxcurl -s "https://quartermaster.surewhynot.app/v1/http-errors/429"curl.exe -s "https://quartermaster.surewhynot.app/v1/http-errors/429"Unpaid, these return 402 Payment Required with the payment details in the header (add -i to see them). curl.exe ships with Windows 10+ and works in cmd and both PowerShell versions. To actually pay, use an x402 client (see Connect) or call it as the MCP tool. Cost: $0.001 per call.
FAQ
Is there a free version?
Yes — GET /v1/http-errors returns the free index of all documented codes; the detailed per-code explanation is the paid endpoint.
How do I pay for this endpoint?
Call it with no payment and you receive HTTP 402 with machine-readable payment requirements. Attach a USDC payment on Base with any x402 client (for example @x402/fetch) and retry — the whole loop is two requests. This call costs $0.001 in USDC.
Do I need an account or API key?
No. There are no accounts, logins, or API keys anywhere in Quartermaster. Payment is per call over the x402 protocol; your wallet is your identity.
Can I call this as an MCP tool instead?
Yes. Quartermaster is also an MCP server at /mcp, so any MCP client (Claude Code, Claude.ai, Cursor) can mount this tool. See /connect for setup.