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fittings.sh data column-profile
https://fittings.sh/v1/data/column-profile
answers 402
Per-column profile of a CSV or NDJSON payload: null rate, cardinality, inferred type, numeric range, mean, standard deviation and most frequent values.
We sent a real
POST request to this endpoint and it
answered 402 with payment requirements we could parse.
- Price
- $0.005
- Network
- base
- Pay to
- 0xe025442C0d6dC17aD2b9eB888B3565bdFCd98638
- Spec dialect
- v2 (declares x402Version 2)
- Transport
- PAYMENT-REQUIRED header
- HTTP method
- POST
- Response latency
- 217 ms
- Payment options
- 1 usable of 1
- Last checked
- 2026-09-06T01:21:46.062Z (26d ago)
- Category
- ai-inference
Re-check it yourself:
curl "https://api.the402.dev/validate?url=https%3A%2F%2Ffittings.sh%2Fv1%2Fdata%2Fcolumn-profile"