# mcp-gauge MCP server

US government data (USGS/NOAA/SEC/FDA) with cryptographic proof; x402 pay-per-call, no API key

## Links
- Registry page: https://www.getdrio.com/mcp/io-github-changchinfu-mcp-gauge
- Repository: https://github.com/CHANGCHINFU/mcp-gauge
- Website: https://gauge-frontdesk.zeabur.app

## Install
- Endpoint: https://aeml-x402.zeabur.app/mcp
- Auth: Not captured

## Setup notes
- Remote endpoint: https://aeml-x402.zeabur.app/mcp

## Tools
- verify_citation (Verify a Truth Bear record (free)) - FREE. Given a record_hash from any Truth Bear record, look it up and recompute the canonical hash server-side, returning whether it is a genuine Truth Bear official record plus a plain-language reverse lookup of what exactly that hash attests. Use this to check a citation you were handed by another agent or document BEFORE relying on it. No payment, no API key. Endpoint: https://aeml-x402.zeabur.app/mcp
- find_signal (Find which signals/entities are covered (free)) - FREE coverage + freshness manifest: which signal_id lines exist, how many entities each covers, and fresh/recent/stale counts - so you can check "is my entity covered and how fresh" BEFORE paying. Optional filters: industry, signal_id, entity. Endpoint: https://aeml-x402.zeabur.app/mcp
- get_official_record (Get the x402 payment challenge for a paid record) - Returns the REAL x402 payment challenge (accepts[]: network / asset / payTo / amount) for the paid endpoint that serves a given signal_id+entity. This tool does NOT deliver paid data and does NOT take payment - MCP has no payment layer. Pay at the returned url with your own x402 client (USDC on Base or Solana, gasless EIP-3009; pay from a plain EOA) and you receive the record directly, with record_hash you can verify offline. This tool only fetches the 402 challenge; it delivers no paid data and collects no payment. Endpoint: https://aeml-x402.zeabur.app/mcp

## Resources
Not captured

## Prompts
Not captured

## Metadata
- Owner: io.github.CHANGCHINFU
- Version: 1.0.0
- Runtime: Streamable Http
- Transports: HTTP
- License: Not captured
- Language: Not captured
- Stars: Not captured
- Updated: Jul 30, 2026
- Source: https://registry.modelcontextprotocol.io