Phone Identity Lookup

Resolve a mobile number to the name and date of birth on its ICAD/BVN record. For corroboration and fraud signal, not as standalone identity.

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Resolves a mobile number to the name and date of birth on its linked ICAD/BVN record. Use it to corroborate other evidence or as a fraud signal, not as a standalone identity check.

POST/v1/verify/phone

Availability: Sandbox and live
Indicative price: ₦50.00 per completed check
Consent: Your attestation (client_attested).

Request

Body parameters

phonestringrequired
Format: Nigerian mobile number, 0803… or +234803….
reasonstringrequired
Purpose of the check. One of the 38 NIMC purpose codes. See the purpose code list.
consentobjectrequired
Your attestation that you obtained the data subject's consent for this purpose.
consent.obtainedbooleanrequired
Always true.
matchobject
Optional values to compare against the record. Each comparison is returned in field_matches; match is true only if all of them agree.
match.first_namestring
Must not be empty.
match.middle_namestring
Must not be empty.
match.last_namestring
Must not be empty.
match.date_of_birthstring
Format: date, YYYY-MM-DD.

Accepts local (0803…) and international (+234803…) formats.

Send an Idempotency-Key header so a retried request is never billed twice. See Idempotency.

curl -X POST http://localhost:4000/v1/verify/phone \
  -H "Authorization: Bearer sk_test_..." \
  -H "Idempotency-Key: $(uuidgen)" \
  -H "Content-Type: application/json" \
  -d '{
  "phone": "08031234567",
  "reason": "financialProducts",
  "consent": {
    "obtained": true
  },
  "match": {
    "last_name": "Griffin"
  }
}'

Response

A completed check returns 200 with a verification object. status is verified or not_found. If the provider has not answered in time you get 202 with status: "pending"; retrieve it later or wait for the verification.completed webhook.

200 OK · assertion

{
  "reference_id": "spm_8171f3a87cbe221341f7185f",
  "object": "verification",
  "product": "phone",
  "method": "phone_lookup",
  "status": "verified",
  "match": true,
  "field_matches": {
    "last_name": true
  },
  "field_confidence": {
    "last_name": 100
  },
  "mode": "sandbox",
  "reason": "financialProducts",
  "subject": "*******4567",
  "summary": {
    "first_name": "A*****",
    "last_name": "O*****"
  },
  "consent": {
    "mechanism": "client_attested",
    "consent_id": null,
    "timestamp": "2026-10-19T09:41:07.512Z"
  },
  "source": "api",
  "error": null,
  "billing": {
    "amount_kobo": 0,
    "currency": "NGN"
  },
  "latency_ms": 233,
  "created_at": "2026-10-19T09:41:07.512Z",
  "updated_at": "2026-10-19T09:41:07.874Z"
}

summary

first_namestring
First name on the record, masked to its first letter: A*****.
last_namestring
Last name on the record, masked to its first letter.

Full-tier accounts calling the REST API also receive provider, provider_reference and data, the normalized record. MCP, webhooks, lists and bulk results never include it. See Response shaping.

Full tier only

{
  "provider": "sandbox",
  "provider_reference": "SBX6CB753DB2C",
  "data": {
    "first_name": "CLARKE",
    "middle_name": "ELIZA",
    "last_name": "GRIFFIN",
    "date_of_birth": "1992-04-18"
  }
}

Test values

Send these bodies with a sandbox key. More outcome triggers are on the Sandbox page.

Linked number

{
  "phone": "08031234567",
  "reason": "financialProducts",
  "consent": {
    "obtained": true
  }
}

Unlinked number

{
  "phone": "08000000000",
  "reason": "financialProducts",
  "consent": {
    "obtained": true
  }
}

Errors

Status	Code	Meaning
400	`invalid_request`	The body failed validation. `details` lists each field.
401	`unauthorized`	Missing or invalid API key.
402	`insufficient_balance`	Live only: wallet balance is below the check price.
403	`not_entitled`	Your workspace is not enabled for this product or method.
409	`idempotency_key_reused`	The `Idempotency-Key` was used with a different body.
422	`provider_rejected_request`	The upstream registry rejected the request.
503	`verification_unavailable`	Temporary failure. Retry, with the same or a new `Idempotency-Key`.

All errors share one shape. See Errors for the full list.

Questions? Email developers@speedmap.ng. This page is also available as Markdown.