Holdify Holdify
Docs

Documentation

Everything you need to integrate Holdify into your application.

Quickstart

Get Holdify running in 5 minutes. Install the SDK, connect your payment provider, and verify your first API key.

SDK Reference

Learn how to use the @holdify/sdk package to verify keys and track usage in your application.

API Reference

Full API documentation including authentication, endpoints, request/response formats.

How It Works

Understand how Holdify handles API key verification, rate limiting, and entitlement management.

Integrations

Connect your payment provider to automatically sync subscriptions, entitlements, and billing.

Error Codes

Complete list of error codes, HTTP statuses, and remediation steps.

What is Holdify?

Holdify is API access control for subscription businesses. While your payment provider handles payments and subscriptions, Holdify verifies API keys, enforces rate limits, tracks usage, and syncs entitlements in real-time.

  • Verify: Check API keys and return remaining quota, plan, and entitlements
  • Enforce: Apply rate limits and quota enforcement at request time
  • Track: Record usage events for billing and analytics
  • Sync: Keep entitlements up-to-date via payment provider webhooks