Obolus
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What Obolus doesHow to run a queryHow creators get paidx402 tolls and citation royaltiesClaims, quotes, and weightsWhat a receipt provesSystem architectureSecurity and adversarial testsHow to test the claimsCurrent limits

Money path

x402 tolls and citation royalties

Both access tolls and royalties use the same Circle Gateway x402 purchase path on Arc Testnet.

Toll purchase

The source endpoint returns HTTP 402 with payment requirements. The buyer signs an EIP-3009 authorization, retries with `X-PAYMENT`, the facilitator verifies it, and the endpoint returns the paid content.

Royalty purchase

A royalty is modeled as a citation-license resource purchase. The endpoint derives the royalty amount server-side from persisted contribution weights. The buyer cannot choose a payout amount.

Budget rules

  • Default split: 30 percent access cap, 60 percent royalty pool, 10 percent reserve.
  • All amounts are integer USDC atoms.
  • Per-payment and per-run caps are enforced before signing.
  • Rounding remainder goes deterministically to the top-weighted source so the royalty sum closes exactly.

Need the implementation-level version? Read the root README, Architecture, Security, and Adversarial Testing documents in the repository.