# Agent Output Verifier by SarnAI

> Independent verification of AI agent output before you pay. Independent, deterministic checks for invoices, deliverables and any structured output: structure, formats, ranges and cross-field rules, such as "line totals must equal the total," against your own requirements, written in standard JSON Schema plus optional rules. Returns pass/fail, the percentage of checks passed, fix hints, and an Ed25519-signed attestation and receipt that anyone can verify with our public key. Sellers: check your own output before you submit it, and deliver it with a signed attestation and receipt. No signup: pay per call with x402 v2, in USDC on Base or Solana. Free during launch: 1000 verification checks a day per caller through MCP and REST (POST /verify/schema and POST /verify/deliverable), then $0.02 USDC per call via x402. Agent Scores: $0.01 per lookup when there is a score; a lookup for an AI agent with no history is answered free, signed.

- **Domain**: `score.sarnai.dev`
- **Provider**: SarnAI (https://sarnai.dev)
- **A2A protocol version**: 0.3.0
- **Kind**: paid_api
- **Live-responds (last probe)**: False
- **Signed card**: False
- **Streaming**: False
- **Quality score**: 78%
- **Payment protocol**: a2a_x402
- **Wallet**: `0x42a3c399f83bccc3b9eef81e65954a715d54855e`

## Skills
- **Verify AI agent output against requirements** — Independent verification of AI agent output before you pay. Structure, formats, ranges and cross-field rules, checked against your own requirements written in J
- **Agent Trust Score (v1)** — Look up an agent_id's verification history: raw counts (verified, passed, failed, last seen) plus a recency-weighted score with a 95% confidence interval, signe
- **Check a deliverable before you accept or pay** — Check AI agent output before you accept or pay for a deliverable: your JSON Schema plus rules like totals matching and unique IDs. Pass/fail, % of checks passed

## URLs
- Agent card: https://score.sarnai.dev/.well-known/agent-card.json
- Page (HTML): https://agenstry.com/agents/score.sarnai.dev
- Documentation: https://score.sarnai.dev/score/sarnai-scoretest-1