Discover / api.checkpoint402.com

Checkpoint402 Tx Explainer

■ Challenge detected

Explains any Base or Ethereum transaction in plain English: who sent what to whom, which tokens/NFTs moved, the function called, success/failure and fee — plus the structured decoded data.

Listed price
$0.03
Challenge detected
1 of the last check
Median response
138 ms
Last checked
14 Oct, 22:06 UTC
In our index since
14 Oct 2026

Endpoint

curl -i https://api.checkpoint402.com/v1/tx-explain
# 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/api.checkpoint402.com

Recent checks

14 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.14 Oct 2026
All 1 checks
When (UTC)ResultHTTPResponse
14 Oct, 22:06 UTCChallenge detected402138ms

Questions

Did our last probe detect a payment challenge?

At our last probe on 14 Oct, 22:06 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 Checkpoint402 Tx Explainer?

Its listed price is $0.03.

What payment terms does Checkpoint402 Tx Explainer 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 Checkpoint402 Tx Explainer listed?

In x402 Bazaar. Superstables first indexed it on 14 Oct 2026.

Something wrong on this page? Tell us.