Mexico NOM-151 – SignatureAPI Docs

To enable NOM-151 attestations for your account, contact support.

NOM-151 defines the legal standards for data message preservation and document digitization in Mexico.

When attestation is set to mx_nom151, a preservation certificate (constancia de conservación) in ASN.1 format is attached to the deliverable. SignatureAPI also adds a verification link on the last page of the deliverable. Both the certificate and the deliverable can be verified using any ASN.1 signature verification tool.

To use NOM-151, set attestation to mx_nom151 when creating the envelope:

// POST https://api.signatureapi.com/v1/envelopes
// X-API-Key: key_test_...
// Content-Type: application/json

{
    "title": "Contrato",
    "attestation": "mx_nom151",
    "documents": [
        //...
    ],
    "recipients": [
        //...
    ]
}

NOM-151 attestation adds $0.10 per completed envelope.