Partner Apps API
Partner Apps API
A partner apps API for teams building installable commerce integrations with hosted OAuth install, environment grants, and app-owned webhook endpoints.
Teams searching partner app APIs usually need more than OAuth. They need a full installable-app model with app registration, merchant installs, environment grants, token exchange, and webhook ownership.
Flint treats partner apps as first-class public resources instead of making ecosystem integrations live outside the main API.
The public surface covers app registration, installs, environment grants, OAuth exchange, and per-app webhook endpoints on one model.
Partner apps fit the same merchant and permission architecture as the rest of the Flint developer platform, which makes app installs easier to reason about later.
Use This Platform Shape When
You are building an installable product that many Flint merchants should be able to connect without support involvement.
Your integration needs app registration, install records, environment grants, and webhook ownership on one platform model.
You want the app ecosystem to live inside Flint's public API rather than being handled by custom contracts outside the developer platform.
Register the app once
Create the partner app resource with callback URLs, permissions, and merchant-facing install identity before onboarding real users.
Install across many merchants
Let each merchant create its own install and environment grants instead of sharing one credential across every customer account.
Own app webhooks separately
Keep lifecycle events, signing secrets, and retry state on the partner app instead of mixing them into merchant-level endpoints.
Rotate app credentials cleanly
Handle client-secret rotation, token exchange, and reinstall flows without rebuilding your own app-platform control plane.
Choose Something Narrower When
Implementation References
Reference the platform-level surfaces
Partner Apps API
Register apps, manage installs, exchange tokens, and configure per-app webhooks.
Partner App Installs Guide
Implementation guide for the hosted install flow, callback handling, and install lifecycle.
Webhooks API
Review the wider webhook model when partner-app install events need to fit existing operator and event tooling.
Related Pages
Explore app installs, auth, and event delivery
These pages cover the surrounding auth and operational model that turns partner apps into a real platform surface.
OAuth for Commerce Integrations
Start here when the main decision is how the merchant approves and connects the app.
Webhook Infrastructure for Developers
Use this when partner apps are only one part of a broader event-delivery and operational webhook design.
Scoped API Keys for Payment Platforms
Compare this against direct merchant-scoped API keys when deciding how third-party integrations should authenticate.