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Nansen

Get Perpetual Contract Screening Data

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Our latest check (2026-10-11)

Answering
Yes — valid x402 payment terms
Time to answer
201 ms
Price
$0.010 per call
Paying buyers, last 30 days
3 (directory's own records)
Paid calls, last 30 days
25
Category
Blockchain reads
Address
https://api.nansen.ai/api/v1/perp-screener

Accuracy

Accuracy scores are published once a seller has enough paid checks against an independent record (at least 7 scored answers over at least 7 days). Until then no score is shown, and a missing score is never a pass.

For agents

This page as JSON: /sellers/ecc14698236e.json. Paid lookup by address: GET /api/seller?resource=… ($0.001, x402).

Sellers can see the evidence behind their checks and ask for a re-check at [email protected].