Rate limits

Per-organization burst limits.

Each organization has a plan-aware burst limit per minute, keyed on the organization (not the key). Every response includes X-RateLimit-* headers. Exceeding the limit returns 429 rate_limit_exceeded with Retry-After.

Request size

Body cap: 4 MB.
Per-endpoint record caps (e.g. normalize 1,000; dedupe 500; analyze 1,000 per dataset and 12 operations).
Max 200 fields per record and 10,000 characters per string field; nested values rejected.

Try it

curl -X POST https://messyapi.com/api/v1/repair \
  -H "Authorization: Bearer $MESSYAPI_KEY" \
  -H "Content-Type: application/json" \
  -d '{
  "records": [
    {
      "Company Name": "ACME, INC.",
      "Email": " JOHN@ACME.COM "
    }
  ]
}'

Open in playground →Starter project →Use with Claude / Cursor →