Developers First

Built for developers.
Ready for production.

Integrate identity verification into your products without fighting infrastructure. Clear, predictable API and tools for modern teams.

Integration in minutes
Real-time webhooks
Free sandbox
Complete observability
POST /v1/verifications
HTTP 200 OK
{ status: 'verified' }
webhook.received
Quickstart

Integration in minutes, not months.

Singula is built for you to focus on your product. With simple endpoints and a consistent structure, you can have your first flow running today.

Sign up

Create your free account in seconds.

Get API Key

Get your Sandbox credentials.

Test Integration

Test with simulated data.

Go Live

Switch to production with a toggle.

  • Simple endpoints

    Predictable and easy-to-understand RESTful API.

  • Copy-Paste Examples

    Snippets ready to use in the most popular languages.

  • Native SDKs

    Official libraries for Node, Python, Go, and more.

  • Step-by-step guides

    Tutorials for onboarding, KYC, and anti-fraud.

An API that feels good to use.

Developer experience is a priority. Every decision —from field names to error messages— is designed to be intuitive and predictable.

Clear Documentation

Concise explanations and concrete examples.

Native Libraries

Designed for your current stack.

Useful Errors

Messages that tell you how to fix it.

Stable Versioning

No surprises in production.

Create a verification

Create a new verification session for a user.

POST /v1/verifications
REQUEST BODY
{
  "type": "document",
  "user": {
    "email": "[email protected]",
    "phone": "+525512345678"
  }
}

Real-time webhooks for reactive experiences.

No need to be "polling" the API. With real-time webhooks, your system receives instant notifications when verification status changes.

Singula
Tu App
EVENT: verified
  • Immediate notifications
  • Easy to connect to workers
  • Automatic retries
  • Security signatures (HMAC)

Typical use

  • Send email upon verification completion
  • Unlock premium features
  • Create manual review tickets
Testing Environment

Secure sandbox to experiment without risk.

Test the entire API without touching real data. Simulate responses, errors, and risk scenarios. Develop as if you were in production, but with the peace of mind that everything is simulated.

  • Unlimited free sandbox
  • Preconfigured scenarios (fraud, success)
  • Test automation
  • Same structure as production
Environment Switch
ver_test_123
verified
TEST DATA
ver_test_456
review_needed
TEST DATA
ver_test_789
rejected
TEST DATA
Live Tail
POST
/verifications
200
45ms
req_8f72ka9
GET
/verifications/v_123
200
12ms
req_9d21lb3
POST
/webhooks/retry
429
120ms
req_1k02nc4
Observability

Observability from day one.

When something fails, you need answers fast. Singula offers detailed logs and full traceability of every request, so you can debug, monitor, and audit without guessing.

  • Logs with unique identifiers
  • End-to-end traceability
  • Advanced filters
  • Compliance auditing

Enterprise-grade security, with controls for your team.

We know it's not just about integrating an API: it's about meeting security, privacy, and internal governance requirements.

  • Environment-based API key management
  • Granular permissions and roles
  • E2E encryption by default
  • Regulatory compliance

API Keys

Production - Backend
sk_live_...••••••••••••
2 days ago
Staging - Testing
sk_test_...••••••••••••
1 week ago
Mobile App Key
pk_live_...••••••••••••
1 month ago

One identity engine, infinite products.

With the Singula API you can activate verification capabilities in any type of product. You define the experience, we provide the infrastructure.

Fintech

Onboarding and KYC

B2B SaaS

User verification

Marketplaces

Peer-to-peer trust

Tools

Internal compliance

Start building with Singula today.

Create your account, generate an API key, and have your first verification flow running in minutes.

GET YOUR API KEY
$ curl https://api.singula.mx/v1/keys
> { "key": "sk_test_..." }

No forced contracts. No cost in sandbox.