Discover / verify.sarnai.dev

Agent Output Verifier

■ Challenge detected

Free during launch: check AI agent output before you accept or pay for a deliverable against your JSON Schema and rules. Pass/fail, % of checks passed, fix hints, signed attestation and receipt. $0.02 USDC after, x402 v2.

Listed price
$0.02
Challenge detected
2 of the last 2 checks
Median response
132 ms
Last checked
16 Oct, 13:59 UTC
In our index since
15 Oct 2026

Endpoint

curl -i https://verify.sarnai.dev/verify/deliverable
# 402 Payment Required: pay with an x402 client (USDC on Base),
# then send the same request again with the payment attached.
2 listed endpoints · on x402 Bazaar

Checks and payment terms on this page refer to the endpoint above. Other listed endpoints have not been checked individually.

Base URLhttps://verify.sarnai.dev/verify

  • POST/schema$0.02Free during launch. Independent verification of AI agent output before you pay: an invoice or deliverable against your JSON Schema and rules. Pass/fail, % passed, fix hints, signed attestation and receipt. $0.02 USDC after, no signup, x402 v2.
  • POST/deliverable$0.02Free during launch: check AI agent output before you accept or pay for a deliverable against your JSON Schema and rules. Pass/fail, % of checks passed, fix hints, signed attestation and receipt. $0.02 USDC after, x402 v2.

A dash means the listing gives no price or method. Copy buttons copy the full URL.

Showing 2 of 2 listed endpoints.

Agents can find it through the Superstables MCP server and JSON API: GET /api/v1/services/verify.sarnai.dev

Recent checks

15 Oct 2026One bar per check, showing up to 20 recent checks. Coloured bars show relative response time, with a minimum visible height; full-height grey bars mean no challenge was detected. “Challenge detected” means HTTP 402 or another detected payment-challenge signal.16 Oct 2026
All 2 checks
When (UTC)ResultHTTPResponse
16 Oct, 13:59 UTCChallenge detected40297ms
15 Oct, 04:47 UTCChallenge detected402166ms

Questions

Did our last probe detect a payment challenge?

At our last probe on 16 Oct, 13:59 UTC, it returned HTTP 402 or another detected payment-challenge signal. This check did not test payment, delivery or compatibility with the Superstables client.

What price is recorded for Agent Output Verifier?

Its listed price is $0.02.

What payment terms does Agent Output Verifier advertise?

The listing advertises x402, Base, Solana and USDC. It names cdp as its facilitator. Check the seller's current payment challenge and authentication requirements before paying.

Where is Agent Output Verifier listed?

In x402 Bazaar. Superstables first indexed it on 15 Oct 2026.

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