MCP bridge for autonomous x402 payments in HPP USDC.e — discover and pay for services per call.
MCP bridge for autonomous x402 payments in HPP USDC.e — discover and pay for services per call.
Needs Node 20+. On a headless box (no OS keychain) use setup --print-key — see the manual.
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| Tool | What it does |
|---|---|
| wallet_address | report your wallet address (to fund it) |
| hpp_discover | list/search the curated HPP directory (read-only) |
| hpp_describe | one service's input args — schema + example (read-only) |
| hpp_call | call a discovered service (HTTP/MCP/A2A); pays via your wallet |
| x402_http_call | pay + call any x402 HTTP endpoint |
| pay_a2a_agent | pay + message another A2A agent |
{
"mcpServers": {
"x402-mcp-bridge": {
"command": "npx",
"args": ["-y", "@hpp-io/x402-mcp-bridge"],
"env": {
"DELEGATE_PRIVATE_KEY": "your-value",
"RESOURCE_SERVER_URL": "your-value"
}
}
}
}Add to claude_desktop_config.json, then restart Claude Desktop.
| Variable | Description | Required |
|---|---|---|
| DELEGATE_PRIVATE_KEY | Credential the server authenticates with. | Yes |
| RESOURCE_SERVER_URL | Endpoint or connection string the server talks to. | Yes |
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