cm-kg.io

■ Challenge detected

One paid call on cm-kg.io for $0.01 USDC: the surface's own statement of record (a market node: its list_nodes line; a product: its record of record; allooloo.io: the estate scale block), public-record only, with an EdDSA-signed receipt that resolves forever at https://cm-kg.io/x402/receipt/{nonce}. Doctrine: https://agentic-x402.ai/.

x402
Base
USDC

Listed price: $0.01
Challenge detected: 3 of the last 3 checks
Median response: 70 ms
Last checked: 9 Oct, 18:22 UTC
In our index since: 7 Oct 2026

Endpoint

curl -i https://cm-kg.io/api
# 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/cm-kg.io

Recent checks

7 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.9 Oct 2026

All 3 checks

When (UTC)	Result	HTTP	Response
9 Oct, 18:22 UTC	Challenge detected	402	87ms
8 Oct, 09:20 UTC	Challenge detected	402	54ms
7 Oct, 00:22 UTC	Challenge detected	402	70ms

Questions

Did our last probe detect a payment challenge?

At our last probe on 9 Oct, 18:22 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 cm-kg.io?

Its listed price is $0.01.

What payment terms does cm-kg.io 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 cm-kg.io listed?

In x402 Bazaar. Superstables first indexed it on 7 Oct 2026.

Something wrong on this page? Tell us.