# VerifyAPI — agent-native factual verification
# Machine-readable service manifest for autonomous AI agents.

Service: VerifyAPI
Purpose: Verify a single factual claim against live web sources.
Base-URL: https://api.verify-api.dev
Discover: /v1/discover (one-hop manifest of everything below)
Trial: POST /v1/verify/trial (no key, no payment, IP-rate-limited)
Signup: POST /v1/accounts (no auth, returns api_key; balance starts at $0)
OpenAPI: /openapi.json
Pricing: /v1/pricing (machine-readable)
JWKS: /.well-known/jwks.json (for verifying signed receipts)
MCP: npx -y @verify-api/mcp
LLMs: /llms.txt

[pricing]
default-tier: $0.0200 USD per verified claim
recent-tier:  $0.0400 USD (2x, exact cache within max_age_seconds only)
fresh-tier:   $0.1000 USD (5x, full pipeline re-run, both caches bypassed)
billed-on: supported | refuted
free-on: insufficient_evidence | out_of_scope | malformed | cache-hit-same-account | trial
currency: USD
payment-methods: trial (free, no signup), prepaid-balance, stripe-checkout

[capabilities]
verify-single:   POST /v1/verify              (api_key)
verify-batch:    POST /v1/verify/batch        (api_key, up to 20 claims)
verify-trial:    POST /v1/verify/trial        (public, IP-rate-limited)
balance-check:   GET  /v1/balance             (api_key)
balance-topup:   POST /v1/balance/topup       (api_key; or /preset for one-click tiers)
account-info:    GET  /v1/account/me          (api_key)
usage-report:    GET  /v1/account/usage       (api_key)
discover:        GET  /v1/discover            (public, one-hop manifest)

[trust]
receipt-format: JWS (Ed25519)
receipt-header: alg=EdDSA
receipt-verify-against: /.well-known/jwks.json
quote-verification: Every verdict includes an exact_quote character-for-character present in source_url.

Contact: hello@verify-api.dev