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Onboarding is how your firm goes from “interested partner” to “able to call the API.” It establishes your legal agreements and provisions your API credentials in each environment.
Audience: business and technical leads. Onboarding spans legal agreements and API credential setup, so expect both commercial and developer steps.

Start onboarding

Email institutional@polymarket.us to kick off the process and get your onboarding folder set up.

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At a glance

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What you provide vs. what you receive

You provideYou receive
Signed partner agreement (ISV or IB) and participant agreements for your usersA Client ID for each environment
RSA public keys (one per environment)Access to pre-production and production
AWS Account ID (only if using FIX connectivity)FIX connection details (if requested)
Primary technical and business contactsA shared Google Drive folder for credential delivery

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Step 1 — Sign the agreements

The agreements depend on your partner type:

ISV agreement

The ISV Connectivity Agreement and the participant clickthrough agreements you present to your users.

IB agreement

The IB Participant Agreement, plus the CFTC/NFA regulatory requirements specific to Introducing Brokers.
Your Retail Participants must accept the appropriate participant agreement before they begin KYC. See ISVs for the individual and entity participant agreement links.

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Step 2 — Generate your API keys

Authentication uses Private Key JWT with RSA keys. Generate a key pair per environment and share only the public keys with Polymarket US — never your private keys.

Authentication — key generation

Step-by-step key generation and the full authentication flow.
Keep your private keys secure and never share them. You submit only the public keys during onboarding.

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Step 3 — Submit your onboarding request

  1. Create a Google Drive folder containing your public key file(s) and your completed agreement(s).
  2. Grant access to the folder as directed by your Polymarket US contact.
  3. Email institutional@polymarket.us with your firm name and a link to the folder.
Using FIX connectivity? Also include your AWS Account ID so a private connection can be established, and note FIX in your request. You still generate and submit RSA key pairs even if FIX is your primary connectivity method. See the FIX API for protocol details.

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Step 4 — Receive your credentials

Polymarket US reviews your submission and provisions your access:
  • A Client ID for each environment, delivered to your shared Google Drive folder.
  • Access to pre-production (for integration and testing) and production.
Your pre-production environment is provisioned with test funds so you can exercise the full flow — authentication, KYC, and trading — before going live.

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Next steps

Authentication

Exchange your signed JWT for an access token and call the API.

Quickstart

Place your first order end to end.