US government data (USGS/NOAA/SEC/FDA) with cryptographic proof; x402 pay-per-call, no API key
MCP MCP server is a hosted integration for AI assistants that speak the Model Context Protocol. US government data (USGS/NOAA/SEC/FDA) with cryptographic proof; x402 pay-per-call, no API key.
Give any MCP host (Claude Desktop, Cursor, MCP-compatible agents) access to GAUGE's verifiable, screening-level signals across many domains (weather, drought, agriculture, power grid, shipping, regulatory filings, and more) — and let the agent pay per call in USDC on Base via x402 (EIP-3009 gasless, no API key, no signup).
Being a remote server, there is no local install. You register the endpoint with your client, authorise it once, and the tools appear.
Once MCP is connected, these are the calls the assistant has available:
gauge_catalog — freegauge_preview — freegauge_sample — freegauge_river_free — freegauge_flood_risk — $0.05gauge_region — $0.10gauge_crop_drought — $0.10gauge_grid_stress — $0.10gauge_route_disruption — $0.10gauge_filing_check — $0.10You will need 2 environment variables: EVM_PRIVATE_KEY, GAUGE_BASE_URL. The server will not start without them, which is usually why the tools fail to appear on a first run. Keep credentials in your client's env block or a secrets manager rather than in a file you might commit.
Plenty of payments and commerce servers cover similar ground. The differences that matter in practice are scope of access and how much setup stands between you and a working tool call. MCP's toolset — gauge_catalog, gauge_preview, gauge_sample and 7 more — is a fair guide to whether it matches your workflow. It is maintained by CHANGCHINFU; worth a glance at recent repository activity before you build anything load-bearing on it.
We check each listing at SyncDev against the project's documentation before it goes live — if something here drifts out of date, it is a bug worth reporting.
| Tool | What it does |
|---|---|
| gauge_catalog | free |
| gauge_preview | free |
| gauge_sample | free |
| gauge_river_free | free |
| gauge_flood_risk | **$0.05** |
| gauge_region | **$0.10** |
| gauge_crop_drought | **$0.10** |
| gauge_grid_stress | **$0.10** |
| gauge_route_disruption | **$0.10** |
| gauge_filing_check | **$0.10** |
{
"mcpServers": {
"gauge": {
"command": "npx",
"args": ["-y", "github"],
"env": {
"EVM_PRIVATE_KEY": "your-value",
"GAUGE_BASE_URL": "your-value"
}
}
}
}Add to claude_desktop_config.json, then restart Claude Desktop.
| Variable | Description | Required |
|---|---|---|
| EVM_PRIVATE_KEY | Credential the server authenticates with. | Yes |
| GAUGE_BASE_URL | Endpoint or connection string the server talks to. | Yes |
Payments infrastructure meets AI — customers, invoices, subscriptions and current API docs from Stripe's server.
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