Developer · Pick your path
Pick your path.
Four answers cover ~95% of what builders ask us. Pick the one that matches your need; each row links to the quickstart for that path.
Path 1 · ~1 min
Sign every API response automatically
Just call any GeoClear endpoint. The receipt arrives in the response header. Store it with the response.
curl -H "X-Api-Key: gck_live_..." https://geoclear.io/v1/risk?... Path 2 · ~10 min
Bind a payment to a physical-world verdict
Use the receipt-bound payment-context API. POST /v2/notarize for REST, notarize_payment_context for MCP (stable internal identifiers per DEC-001). Same core, same receipt.
POST /v2/notarize {"payment_tx_id": "pi_...", "tx_chain": "stripe", ...} Path 3 · ~5 min
Verify a receipt
Use the published verifier package, or run the offline verifier, drag a receipt onto the page and it tells you if the signature is valid.
npm install @geoclear/verify-receipt Path 4 · ~5 min
Audit / export the trail
Receipt Vault: list your historical receipts via the API, or download a portable Evidence Bundle ZIP for any one of them.
GET /v2/vault/payments (list)
GET /v2/vault/payments/:id/bundle.zip (Evidence Bundle)