generated: '2026-09-15' method: derived source: openapi/eventedge-oracle-openapi.json + live 402 probe of /v1/market/pulse summary: >- No conventional API authentication. The OpenAPI declares security: [] on every operation and no securitySchemes — there is no API key, OAuth, or bearer token and no signup. Access to paid data is instead gated by the x402 payment protocol: an unpaid request to a paid route returns HTTP 402 with a payment-required challenge, and the caller settles a USDC micropayment on Base (eip155:8453) to receive the payload. schemes: [] access_control: model: x402-payment-gated http_status_on_challenge: 402 challenge_header: payment-required network: eip155:8453 asset: '0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913' asset_name: USD Coin (USDC) pay_to: '0x3a2F36D61c9BB3b3ee72426e2B6b58d774605B5e' scheme: exact max_timeout_seconds: 300 free_routes: - /v1/teasers - /v1/agent/preflight evidence: url: https://edge.arakelproof.space/v1/market/pulse http_status: 402 fetched: '2026-09-15' note: >- Authentication (proving who you are) is intentionally absent; authorization is economic (proving you paid). Documented via the x402 well-known manifest and the live 402 challenge, not a securityScheme.