Discover / maraventanoindex.com

maraventanoindex.com

■ Challenge detected

Per-call counterparty lookup. Pass ?ua=<counterparty-UA>. Returns ONE signed row: has_record (yes/no), payment-attached count, settlement count, class, verdict (known_payer | known_freeloader | low_signal | unknown), with Ed25519 attestation. Pay $0.01 USDC on Base or Solana per call. Call it before every transaction to check if a counterparty has ever paid at this merchant seat. Wallet-based lookup (?wallet=) reserved for v2.

Challenge detected
1 of the last check
Median response
70 ms
Last checked
4 Oct, 05:05 UTC
In our index since
4 Oct 2026

Endpoint

curl -i https://maraventanoindex.com/api/x402-operator-census/lookup
# 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/maraventanoindex.com

Recent checks

4 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.4 Oct 2026
All 1 checks
When (UTC)ResultHTTPResponse
4 Oct, 05:05 UTCChallenge detected40270ms

Questions

Did our last probe detect a payment challenge?

At our last probe on 4 Oct, 05:05 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 payment terms does maraventanoindex.com 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 maraventanoindex.com listed?

In x402 Bazaar. Superstables first indexed it on 4 Oct 2026.

Something wrong on this page? Tell us.

maraventanoindex.com: x402 on Base and Solana