generated: '2026-09-03'
method: searched
source: https://ontopx402.com/llms.txt
docs: https://ontopx402.com/llms.txt
note: >-
  There are no accounts, API keys, OAuth flows or cards, by design — "the payment is
  the account." The OpenAPI declares no securitySchemes. Reads are anonymous; the
  only write is gated by an x402 v2 payment challenge instead of credentials.
schemes:
- name: none (anonymous reads)
  type: none
  applies_to:
  - api_leaderboard_api_leaderboard_get
  - api_entry_api_entry_get
  description: GET /api/leaderboard and GET /api/entry are free and need no key. Free reads are rate limited per address (429).
- name: x402 payment (X-PAYMENT header)
  type: x402
  applies_to:
  - api_bid_api_bid_post
  description: >-
    POST /api/bid with no payment header answers 402 carrying x402Version 2 payment
    requirements priced at the caller-named amount, payable in USDC on Base
    (eip155:8453, facilitator https://api.cdp.coinbase.com/platform/v2/x402) or
    Solana. The caller pays and resends the identical request with the X-PAYMENT
    header; the settlement receipt returns in X-PAYMENT-RESPONSE. A settled
    transaction is never credited twice.