Create a new FlowCheck account. Returns a registration token and checkout URL. No API key required.

Check registration status and retrieve the API key after checkout. The API key is only returned once. No API key required.

Get combined Stripe and bank balances in one call. Returns available/pending Stripe balance and Plaid bank balance. All amounts are in cents (USD).

Get daily inflow/outflow breakdown over a time window. Returns totals and per-day values. All amounts in cents.

List Stripe and Shopify payouts with reconciliation status. Filter by source, status, and date range. Returns paginated results with match confidence scores. Amounts in cents.

Get a single payout (Stripe or Shopify) with matched bank transaction details and confidence score.

List bank transactions from Plaid. Deposits appear as negative amounts. Filter by date range. Paginated.

Get 30-day reconciliation health score. Returns matched/unmatched counts, total amounts, and number of open discrepancies.

Get detailed reconciliation for a specific payout. Shows confidence score breakdown (amount, date, description, bank ID) and the matched bank transaction.

List open discrepancies: missing bank deposits, amount mismatches, and timing alerts. Filter by status and type.

Get a 7-day financial summary designed for AI agents. Returns balances, payout counts, cash flow, health score, and open discrepancies in a single call.

Get active alerts and discrepancies. Returns severity-categorized alerts (high/medium/low) with summaries and related payout IDs.

Connect a Stripe account using a restricted API key. The key must have read access to Payouts and Balance. FlowCheck encrypts it with AES-256-GCM.

Connect a Shopify store. Orders and payouts will sync automatically. The access token must have read access to Orders and Payouts. FlowCheck encrypts it with AES-256-GCM.

Create a Plaid Link token to initiate bank connection in the browser. Use the returned link_token with the Plaid Link SDK.

Exchange a Plaid public token (from Link) for permanent access. Call this after the user completes Plaid Link in the browser.

List all registered webhook endpoints with their events and status.

Register a new HTTPS webhook endpoint. Returns a signing secret for HMAC-SHA256 verification. Available events: payout.matched, payout.discrepancy, payout.missing, refund.detected, balance.threshold

Remove a registered webhook endpoint.

Trigger a full sync of all connected integrations (Stripe, Shopify, Plaid) and run reconciliation. Returns which sources were synced, how many records were processed, and reconciliation results. Rate limited to 1 sync per 5 minutes.

Buy 100 API credits for $5.00 using the payment method on file. Returns the new credit balance. Requires an active Stripe subscription.

Create a Stripe Checkout session to upgrade your plan. Returns a checkout URL the user must visit to complete payment. Plans: starter ($4.99/mo, 1,000 credits), growth ($19/mo, 5,000 credits), pro ($49/mo, 15,000 credits).