Discover / factstamp.agentrails.workers.dev

factstamp.agentrails.workers.dev

□ No challenge detected

Watch a whole list at once, when a bibliography or a dependency manifest has to stay true: up to 25 citations or package versions re-checked every day for 30 days under one token. US$5 a portfolio — 20 cents a reference, under a cent a check. Every reference is answered and signed on purchase, and each real change gets its own signed receipt. Nothing is sent when nothing changed. Pay per call here, or redeem a prepaid pack code (100 credits).

x402
Base
USDC

Listed price: $5
Challenge detected: 0 of the last check
Last checked: 6 Oct, 09:33 UTC
In our index since: 6 Oct 2026

Endpoint

curl -i https://factstamp.agentrails.workers.dev/watch/portfolio
# 402 Payment Required: pay with an x402 client (USDC on Base),
# then send the same request again with the payment attached.

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

Recent checks

6 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.6 Oct 2026

All 1 checks

When (UTC)	Result	HTTP	Response
6 Oct, 09:33 UTC	No challenge detected	200	347ms

Questions

Did our last probe detect a payment challenge?

No. At our last probe on 6 Oct, 09:33 UTC, we detected no payment challenge.

What price is recorded for factstamp.agentrails.workers.dev?

Its listed price is $5.

What payment terms does factstamp.agentrails.workers.dev advertise?

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

Where is factstamp.agentrails.workers.dev listed?

In x402 Bazaar. Superstables first indexed it on 6 Oct 2026.

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