generated: '2026-09-19'
method: searched
source: https://graphadvocate.com/llms.txt (Pricing) + https://graphadvocate.com/agents/capabilities.json (pricing.free_tier*) + https://docs.graphadvocate.com/quickstart + agent card capabilities.extensions[0].params.freeTierPerDay
corroboration: >-
  Live anonymous POST https://graphadvocate.com/route on 2026-09-19 returned HTTP 402 (application/json) with a
  `payment-required` header and NO RateLimit-*, X-RateLimit-* or Retry-After headers — consistent with the
  documented model, where quota exhaustion surfaces as a payment challenge rather than a 429.
confidence: high
limit_count: 1
scopes:
- scope: per-identified-sender (0x EVM wallet address in A2A message metadata)
  surface: POST / (A2A JSON-RPC message/send) — the free routing tier
  window: 1 day
  limit: 3
  unit: routed queries
  burst: null
  status_on_exhaustion: 402
  exhaustion_behaviour: >-
    Further calls return HTTP 402 with x402 PaymentRequirements ($0.01 USDC on Base); any x402-aware client pays
    and continues with no rate cap documented beyond payment.
  counted: routed queries only — greetings, introductions and registry discovery probes are always free
  identity_rule: a bare `name` does not qualify (rotating names minted unlimited buckets); anonymous callers have no free tier and pay from call 1
  headers: []
  docs: https://docs.graphadvocate.com/quickstart
  discrepancy: https://docs.graphadvocate.com/route says 10/day; card, llms.txt, quickstart and capabilities.json say 3/day — 3 is recorded as current.
paid_surfaces:
  rate_limit: undocumented
  note: >-
    No request-rate ceiling is published for paid endpoints (/route with payment, /hyperliquid/*, /polymarket/*,
    etc.); the only stated bounds are per-call price, result-size caps (n ≤ 10 on screen endpoints) and the
    payment authorization's maxTimeoutSeconds 300. No 429 is declared in the OpenAPI.
response_headers:
  documented: []
  observed: []
  note: No rate-limit signaling headers exist on this API; the runtime signal an agent must watch for is HTTP 402 + `payment-required`.