For Developers

Verified giving, in five minutes of code.

Start with a single script tag, or build deep with a typed SDK, REST API, and real-time webhooks. Test everything in a free sandbox before you go live.

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Build your way

SDK, API, and webhooks

Pick the surface that fits your stack. Every donation moves through the same verifiable lifecycle.

html
<!-- Universal widget — works on any site -->
<script
  src="https://cdn.omguarantee.com/v1/omg.js"
  data-site="site_live_8f3k2"
  data-charity="every:clean-water-fund"
  data-mode="round-up"
  async
></script>

● One script tag adds a verified-giving widget to any page. Configure charity and giving mode with data attributes — no build step required.

Sandbox

Test the full lifecycle before you ship

Every account includes a free sandbox. Use test keys to create donations, simulate confirmations, and inspect webhook payloads — no real money moves.

Test keys

Prefix sk_test_ keys never touch real funds or live charities.

Simulated outcomes

Trigger received → routed → confirmed states from the dashboard or API.

Webhook inspector

Replay and inspect every event payload as you build your handler.

Developer resources

REST API reference

Endpoints for donations, charities, and verification.

Webhook events

Every event type and payload schema.

SDKs

JS, React/Next, and the MCP server for AI agents.

Status model

How a donation moves from received to outcome confirmed.

Start building today.

Grab a sandbox key, drop in the widget, and verify your first donation in minutes.

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