Developer API · live beta

Reconciled pay-app data, by API.

The same engine that powers the app, by API: POST a G702/G703 and get clean, structured JSON where the numbers are checked to tie. Reconciliation, not just extraction. Available now: create a key and start building. Free for everyone during Early Access, with generous limits while we build.

Free developer tier · live now · no card required

reconcile.sh

curl https://api.payappcheck.com/v1/payapps \
  -H "Authorization: Bearer sk_live_..." \
  -F [email protected]

{
  "id": "b3f1c0a2-…", "status": "completed", "mode": "live",
  "application_no": "4", "period_to": "2026-05-31",
  "reconciliation": {
    "status": "issues_found", "issues": 3,
    "handshake": { "sum_column_g": 1002760.00, "g702_line_4": 1002760.00, "ties": true }
  },
  "line_items": [{ "no": "23 00 00", "completed_to_date": 112000.00,
    "flag": { "rule": "G703.RowTotal", "expected": 110760.00, "delta": 1240.00 } }]
}

POST the document

Send a PDF or Excel as multipart, or a file URL. Pass the prior application to enable period-over-period checks.

We reconcile, async

A job extracts every figure and runs the reconciliation rules: line math, retainage, the G703→G702 handshake, over-billing.

Get reconciled JSON

Receive a webhook when the job completes (or poll). The payload is versioned and structured, and every flag carries the expected figure, the stated figure, and the difference.

EARLY ACCESS

The API is free right now

Create a key and build. The developer API is free during Early Access, with a generous monthly allowance. Pricing isn't decided yet; we'll set it after Early Access and tell you well before anything changes.

Versioned JSON schema

A predictable, documented contract. Breaking changes ship behind new versions.

Sandbox & test mode

Separate sk_test_ keys run the full pipeline unmetered and unbilled. Build the whole integration before you go live.

Webhooks

Reconciliation is async. Subscribe to job events, or poll the job endpoint.

US data residency

Documents and results are processed and stored in the US.

Never trained on your data

Your documents are never used to train models.

Auto-delete on a timer

Source files are removed automatically after processing. You control retention.

Be first to build on reconciled data

The API is live. Create a key and start building: free for everyone during Early Access while we build.

PayAppCheck is software that flags and verifies math. It is not legal, accounting or tax advice. Verify against your contract, your state statute and your accountant.