Discover / fastapi-service-5ag4.onrender.com

Agent Output Verifier

■ Challenge detected

Check 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 receipt. $0.02 USDC, no signup, x402 v2.

x402
Base
Solana
USDC

Listed price: $0.02
Challenge detected: 3 of the last 9 checks
Median response: 112 ms
Last checked: 16 Oct, 23:40 UTC
In our index since: 26 Sept 2026

Endpoint

curl -i https://fastapi-service-5ag4.onrender.com/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://fastapi-service-5ag4.onrender.com/verify

POST/deliverable$0.02Check 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 receipt. $0.02 USDC, no signup, x402 v2.
POST/schema$0.02Independently verify an agent's output before you pay: an invoice or any deliverable, checked against your JSON Schema and rules like sums matching totals. Pass/fail, % passed, fix hints and a signed receipt. $0.02 USDC, no signup, 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/fastapi-service-5ag4.onrender.com

Recent checks

3 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 9 checks

When (UTC)	Result	HTTP	Response
16 Oct, 23:40 UTC	Challenge detected	402	251ms
15 Oct, 19:10 UTC	Challenge detected	402	94ms
14 Oct, 14:31 UTC	Challenge detected	402	112ms
12 Oct, 10:53 UTC	No challenge detected	405	81ms
10 Oct, 15:44 UTC	No challenge detected	405	149ms
9 Oct, 09:34 UTC	No challenge detected	405	106ms
8 Oct, 03:32 UTC	No challenge detected	405	133ms
7 Oct, 00:45 UTC	No challenge detected	405	82ms
3 Oct, 05:05 UTC	No challenge detected	405	51ms

Questions

Did our last probe detect a payment challenge?

At our last probe on 16 Oct, 23:40 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 26 Sept 2026.

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