Discover / witan.markets

WITAN Markets

■ 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).

Listed price
free
Challenge detected
1 of the last check
Median response
1052 ms
Last checked
14 Oct, 22:08 UTC
In our index since
14 Oct 2026

Endpoint

curl -i https://witan.markets/paid/credits
# 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.14 Oct 2026
All 1 checks
When (UTC)ResultHTTPResponse
14 Oct, 22:08 UTCChallenge detected4021052ms

Questions

Did our last probe detect a payment challenge?

At our last probe on 14 Oct, 22:08 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 WITAN Markets?

Its listed price is free.

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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