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For Payment Processors & ISOs

A check verification API built for processor scale.

Run thousands of checks and ACH payments through one engine, resell verification to your merchants at your own margin, and integrate it all with a clean REST API and webhooks — with per-merchant pricing and controls built in.

Get started today Talk to sales Explore the API
Illustration of a payment processor platform routing check and ACH transactions from many merchants through Check EFI
Built for volume

Everything a processor needs to verify and resell.

High-volume virtual terminal

Process large batches of checks and ACH payments through a fast, purpose-built terminal made for daily throughput.

Bulk & batch processing

Upload and verify payments in bulk, then track each batch's status and results from a single view.

Per-merchant management

Onboard merchants, set custom pricing per merchant, and manage credits, roles, and access from your admin console.

Flexible pricing & margins

Global and per-user pricing overrides let you set your own resale margins on every verification.

Developer API & webhooks

Integrate verification directly into your own platform with a REST API, scoped API keys, and event webhooks.

Analytics & reporting

Monitor volume, approval rates, risk distribution, and revenue across your entire merchant base.

Check verification API

Integrate verification in an afternoon.

A clean REST API and interactive playground let your engineers wire check and ACH verification straight into your existing systems. One POST returns the decision, fraud score, risk level and routing result.

  • Simple, documented REST endpoints
  • Scoped API keys with an interactive "try it now" playground
  • Webhooks to push results back into your platform
View full API docs & playground → 
POST /api/v1/verifications
Authorization: Bearer pk_YOUR_API_KEY
Content-Type: application/json

{
  "front_image": "<base64>",
  "back_image":  "<base64>",
  "type": "automated"
}

// 200 OK
{
  "status": "approved",
  "fraud_score": 30,
  "risk_level": "low",
  "routing_valid": true
}
Bulk

Process high volumes of checks & ACH per batch

API

REST endpoints, keys & webhooks for your platform

Your margin

Set custom per-merchant resale pricing

Let's scale verification for your merchants.

Tell us about your volume and stack — we'll map Check EFI to your processing workflow.

Get started today Talk to sales Read the API docs