The journey at a glance
Funding is in beta. Participant trading accounts are funded at order time via On-Demand Funding, enabled per partner — there is no pre-deposit step in the journey.
What you’ll build
A complete partner integration has a handful of components. You can build them incrementally in the order below.Polymarket US is a streaming-first platform. REST endpoints are intended for one-off queries and are rate-limited; continuous data should come from streams. Keep this in mind as you design every component above.
Recommended reading order
1
Understand the platform and your role
Start with Your Role and the Platform Model. Keep the Glossary open in a tab.
2
Understand funding
Participant accounts are funded at order time via On-Demand Funding (Beta) — read the model and workflow before designing your order path. Contact your Polymarket US integration lead to enable funding for your integration.
3
Get connected
Complete partner onboarding, then set up authentication. Confirm you can call
GET /v1/whoami successfully.4
Onboard your participants
Implement the KYC flow. You collect each participant’s required information and submit it; Polymarket US performs the verification and decision. On approval, the Retail Participant and their account are provisioned automatically. See Onboard Participants.
5
Place your first order
Walk through the Quickstart to authenticate, list instruments, and place and cancel an order end to end.
6
Monitor and reconcile
Subscribe to the order, position, and balance streams and maintain a local mirror. Add a webhook receiver for KYC and account lifecycle events.
Start here
Your Role
What you do, what we do, and what you never handle.
Platform Model
DCM + DCO and the entities you act on.
Authentication
Authenticate as your Firm with Private Key JWT.
Quickstart
Place your first order end to end.