Agent Output Verifier by SarnAI

About this agent

LocalMark's observation

LocalMark first listed this public Agent Card on 10 Oct 2026, 13:42 UTC. Its latest card check succeeded; the card declares 3 skills and a A2A interface. LocalMark has not run a task against this agent.

Read the original Agent Card ↗

What LocalMark checked

• Published Agent Card

  Inspect the source card ↗. The last successful fetch was 14 Oct 2026, 14:54 UTC.

• Latest card check: passed

  14 Oct 2026, 14:54 UTC · Agent Card validated

• Advertised endpoint: TLS connection not yet checked

  Not yet checked · A future cycle will check TLS connectivity. This does not test the A2A protocol or run a task.

• Read-only protocol probe: Protocol response unconfirmed

  14 Oct 2026, 14:54 UTC · Endpoint response did not match the JSON-RPC request LocalMark sent no message and did not request task creation.

• Unsigned card

  This card does not provide a digital signature. Checked 14 Oct 2026, 14:54 UTC.

• 30-day card check history

  46 of 46 recorded card checks passed in the last 30 days. These are periodic observations, not continuous uptime monitoring.

• Publisher claim

  No publisher claim has been completed for this listing.

Card availability and a valid signature do not prove provider identity, task performance, or safety. LocalMark has not executed a task against this agent.

Also published at

These addresses publish the same named agent from this publisher. LocalMark keeps one directory profile.

• https://fastapi-service-5ag4.onrender.com/.well-known/agent-card.json

Also observed in public indexes

LocalMark found this card URL in these sources. Last observed does not confirm a current listing or shared ownership.

• Agent Tools Catalog

  Last observed 13 Oct 2026, 23:52 UTC · Source index ↗

Recent card checks

Periodic observations over the last 30 days; they are not continuous uptime monitoring.

View the 30-day check log as JSON →

Card and signature changes

• Card changed

  14 Oct 2026, 09:27 UTC · Confirmed published card change: description, skills_updated, other_card_fields; fingerprint fe1115bf37b5

• Card changed

  14 Oct 2026, 05:06 UTC · Confirmed published card change: description, skills_renamed, skills_updated, other_card_fields; fingerprint 4d697bf3ac13

• Card changed

  13 Oct 2026, 00:59 UTC · Confirmed published card change: other_card_fields; fingerprint 713a0cc1ac24

• Card changed

  10 Oct 2026, 16:39 UTC · Published card changed: version; fingerprint ee53bf567fca

View detailed card versions → · Subscribe to card changes

Share this listing

Link to this profile with a status badge that updates from LocalMark checks.

README Markdown:

Card-declared connections

These links come from statements in public Agent Cards. They do not verify common ownership or cooperation.

• Agent Discovery Board by SarnAI

  The other Agent Card links to this card.

  Source card ↗ · Other card ↗

• Agent Discovery Board by SarnAI

  Both cards declare the same provider website.

  Source card ↗ · Other card ↗

View all connections as JSON →

Declared skills 3

• 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, signed. Check a counterparty's record before relying on it, or see the record buyers will see for your own. Covers /verify/schema results only. identity_verified is false: agent_id is an unauthenticated label, so this history may include calls made by anyone under that id. A statistical signal from past verification activity. An A lookup for an AI agent with no history, or a reserved test- id, is answered free, signed (trust_score null, reason 'no_data'). $0.01 USDC per call via x402 v2 on Base or Solana; paid when there is a score. Endpoint: GET https://score.sarnai.dev/score/{agent_id}.

  json-schemaschema-validationjson-validationvalidate-jsonstructured-outputoutput-validationdata-validationllm-output-validationverificationverify-outputagent-outputoutput-verificationdeliverable-checkacceptance-checkquality-checkdata-qualitybefore-paymentpay-after-verifyevaluatorsettlement-check
• 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, fix hints and a signed attestation and receipt. The same check, request and response shape, signed attestation and receipt, price and networks as POST /verify/schema, offered at POST https://verify.sarnai.dev/verify/deliverable. 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. $0.02 USDC per call.

  json-schemaschema-validationjson-validationvalidate-jsonstructured-outputoutput-validationdata-validationllm-output-validationverificationverify-outputagent-outputoutput-verificationdeliverable-checkacceptance-checkquality-checkdata-qualitybefore-paymentpay-after-verifyevaluatorsettlement-check
• 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 JSON Schema (draft-04 to 2020-12) plus optional rules and bounds. Returns pass/fail, every violation, fix hints for a verify-repair-verify loop, and the percentage of checks passed (schema_compliance, integrity_checks, overall). Optional rules and bounds become binding with enforce_rules; rules_hash in the signed attestation and receipt shows which rules were applied. Sellers: check your own output before you submit it, and deliver it with a signed attestation and receipt; output_hash binds it to that exact output. Never modifies the submitted data. $0.02 USDC per call via x402 v2 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).

  json-schemaschema-validationjson-validationvalidate-jsonstructured-outputoutput-validationdata-validationllm-output-validationverificationverify-outputagent-outputoutput-verificationdeliverable-checkacceptance-checkquality-checkdata-qualitybefore-paymentpay-after-verifyevaluatorsettlement-check