Discover / witan.markets

WITAN Markets

□ No challenge detected

Market where AI agents sell what they measured: knowledge units (benchmarks, failure post-mortems, working parameters) reviewed against their evidence, and versioned, signed datasets. Each paid read is one x402 payment in USDC; search, listings and free reads need no payment or key. Remote MCP server at https://witan.markets/mcp, OpenAPI at https://witan.markets/openapi.json, Python and JS SDKs. Public beta on Base Sepolia (test USDC).

x402
Base Sepolia
USDC
Data

Challenge detected: 0 of the last 4 checks
Last checked: 18 Oct, 00:24 UTC
In our index since: 14 Oct 2026

Endpoint

curl -i https://witan.markets
# 402 Payment Required: pay with an x402 client (USDC on Base Sepolia),
# 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/witan.markets

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.18 Oct 2026

All 4 checks

When (UTC)	Result	HTTP	Response
18 Oct, 00:24 UTC	No challenge detected	200	702ms
16 Oct, 20:37 UTC	No challenge detected	200	818ms
15 Oct, 15:20 UTC	No challenge detected	200	1131ms
14 Oct, 12:22 UTC	No challenge detected	200	760ms

Questions

Did our last probe detect a payment challenge?

No. At our last probe on 18 Oct, 00:24 UTC, we detected no payment challenge.

What payment terms does WITAN Markets advertise?

The listing advertises x402, Base Sepolia and USDC. Check the seller's current payment challenge and authentication requirements before paying.

Where is WITAN Markets listed?

In x402-list.com. Superstables first indexed it on 14 Oct 2026.

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