# Signal Sprint pricing

All protected routes use x402 exact payments in native USDC on Base mainnet (eip155:8453). An unpaid request returns HTTP 402 with the payment requirement. Prices are per successful paid response and exclude any wallet or network fees paid by the client.

| Route | Method | Price (USDC) | Result |
| --- | --- | ---: | --- |
| /service/profile-bio | GET | 1.00 | Professional agent profile bio from query parameters. |
| /service/profile-bio | POST | 1.00 | Professional agent profile bio from JSON input. |
| /service/base-usdc-balance | GET | 0.005 | Current Base USDC balance snapshot for one EVM address. |
| /service/base-block | GET | 0.005 | Compact metadata for one Base block hash. |
| /service/base-gas-price | GET | 0.005 | Current Base gas-price observation. |
| /service/url-security-headers | GET | 0.01 | Selected HTTPS security headers and first-hop redirect metadata. |

## Technical references
- OpenAPI: https://signalsprint-mqysbksh.manus.space/openapi.json
- x402 manifest: https://signalsprint-mqysbksh.manus.space/.well-known/x402
- MCP manifest: https://signalsprint-mqysbksh.manus.space/.well-known/mcp.json
- Terms: https://signalsprint-mqysbksh.manus.space/terms

No purchase, availability, ranking, settlement volume, or response-time guarantee is implied by this price list.