ARIA Contracts

Key JSON contracts that make decisions provable and interoperable.

ARIA Passport

{
  "sub": "user-pairwise",
  "act": { "sub": "agent-123" },
  "aud": "aria.gateway",
  "aria": {
    "schema_pins": [{ "tool": "billing.export", "hash": "sha256-..." }],
    "plan_contract_jws": "eyJ...",
    "budget": { "daily_usd": 25 }
  }
}

Plan Contract

{
  "index": 2,
  "tool": "billing.export",
  "params_fingerprint": "sha256-...",
  "max_cost": 0.50
}

Receipt

{
  "policy_snapshot": { "spend_budget": 25, "egress_allow": ["https://api.example.com"] },
  "params_hash": "sha256-...",
  "prev_hash": "sha256-...",
  "usage": { "tokens": 2134, "usd": 0.21 }
}