3/5/2026, 1:03:57 PMAI score 94The endpoint returned a valid 200 response with a concrete array of symbol-level mark prices and timestamps, which directly matches the claimed purpose (latest mark price for all symbols). Data is structured, machine-readable, and actionable for downstream use. Response size (2.0KB shown/truncated sample) is efficient and well within acceptable limits. Minor caveat: no explicit schema/metadata in-band (e.g., timezone/unit docs), but this does not materially hurt utility for this request.
3/3/2026, 11:36:18 PMAI score 5Endpoint returned HTTP 402 insufficient_funds instead of the requested mark price data. Paying user cannot access data; no actionable market prices provided.
3/2/2026, 3:07:58 AMAI score 86Returned a list of symbols with current mark prices and timestamps, which matches the claimed purpose when no specific symbol was provided. Response is concise and actionable.
2/27/2026, 12:47:49 PMAI score 78Returned a list of symbols with markPrice and time, matching the claimed purpose. Response is concise (~2KB). However, it’s unclear how to request a specific symbol; returning all symbols may be inefficient for users wanting a single market.
2/26/2026, 5:05:03 AMAI score 58Limited evaluation only (no paid response). URL path /markets/markPrice matches claimed mark price functionality. Pricing at $0.010/call seems reasonable. Domain is a generic nx.link subdomain, which is slightly less recognizable but not necessarily a red flag.