POST/withdraw

Create withdrawal addresses

Base URL: https://bridge.polymarket.com
Auth: Public, no key
Rate limit: 50 req / 10s (5 per second)
Limit applies to: Bridge API general

Parameters

Name	In	Type	Required	Description
X-Builder-Code	header	string	no	Optional builder code (bytes32 hex) attributing this request to your integration so transfer issues can be traced to your app. Omitting it still succeeds but returns a `missing_builder_code` warning; a malformed code returns 400. Get your code at https://polymarket.com/settings?tab=builder

Request body

Field	Type	Required	Description
address	string	yes	Ethereum address (0x-prefixed, 40 hex chars)
toChainId	string	yes	Destination chain ID (e.g., "1" for Ethereum, "8453" for Base, "1151111081099710" for Solana)
toTokenAddress	string	yes	Destination token contract address
recipientAddr	string	yes	Destination wallet address where funds will be sent

Example

curl -X POST "https://bridge.polymarket.com/withdraw" \
  -H "Content-Type: application/json" \
  -d '{
  "address": "<address>",
  "toChainId": "<toChainId>",
  "toTokenAddress": "<toTokenAddress>",
  "recipientAddr": "<recipientAddr>"
}'

Response fields

Field	Type	Description
address	object	Bridge addresses for different blockchain networks
note	string	Additional information about the bridge addresses

Responses

Status	Meaning
201	Withdrawal addresses created successfully
400	Bad Request - Invalid/missing parameters or malformed X-Builder-Code
500	Server Error

Polymarket's API serves current state only, so it cannot show what a market's book looked like after it resolved. PolyTest records Up/Down markets while they run and keeps the snapshots. Try it free, or read the full rate limit reference.

From Polymarket's published OpenAPI spec and rate-limit tables, synced 2026-10-04.