LEI validate API

Validates an ISO 17442 Legal Entity Identifier via mod-97 checksum and parses the LOU prefix, entity ID, and check digits. Answers 'Is this LEI valid?', 'Which LOU issued this LEI?'.

Price$0.04per request

MethodPOST

Route/v1/validate/lei

StatusLive

MIME typeapplication/json

Rate limit120/minute

Cache0s public

leilegal-entityiso-17442mod-97validatekybchecksumcompliancegleif

API URLhttps://x402.hexl.dev/v1/validate/lei

Integration docs

Example request

{
  "lei": "7LTWFZYICNSX8D621K86"
}

Example response

{
  "valid": true,
  "reason": "Valid ISO 17442 LEI (mod-97 OK).",
  "normalized": "7LTWFZYICNSX8D621K86",
  "louPrefix": "7LTW",
  "entityId": "FZYICNSX8D621K",
  "checkDigits": "86",
  "computedMod97": 1
}

Input schema

{
  "type": "object",
  "required": [
    "lei"
  ],
  "properties": {
    "lei": {
      "type": "string",
      "description": "20-character Legal Entity Identifier.",
      "examples": [
        "7LTWFZYICNSX8D621K86"
      ]
    }
  }
}

Output schema

{
  "type": "object",
  "additionalProperties": true
}