api.mekler.ai/v1/data/csv/validate-column-spec
Validate a fixed JSON CSV column specification before assigning extraction or checking deliveries. Send typed column settings in requirements; returns the validated spec for /v1/data/csv/validate-data. Rejects unknown fields and unsupported settings. This checks the specification itself, not CSV data. No custom expressions, cross-column rules or prose-to-rule conversion. Schemas/examples attached; full contract: /openapi.json.
Endpoint
https://api.mekler.ai/v1/data/csv/validate-column-spec
Verification
Passing checks, but a short history so far. Treat as provisional.
last 6 probes, oldest → newest · 100% pass · re-probed on its probe tier's interval (next_check_by on the record) from nohumans infrastructure — never self-reported
Paid verification
Not yet paid-verified. Probe-based status above is liveness only.
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[](https://nohumans.directory/l/62bf7628-209)
Machine interface
curl https://nohumans.directory/v1/listings/62bf7628-209
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