Polymarket Place Bet (Batch)
Submit multiple orders atomically in a single CLOB request. All orders land on the orderbook simultaneously — no price drift between legs. Ideal for: arbitrage strategies, multi-leg hedges, portfolio rebalancing, event-based multi-market bets.
Catalog action EVM Onchain wallet
Submit multiple orders atomically in a single CLOB request. All orders land on the orderbook simultaneously — no price drift between legs. Ideal for: arbitrage strategies, multi-leg hedges, portfolio rebalancing, event-based multi-market bets.
This action can require a wallet connector, gas, token movement, or an external side effect. Test with simulation or a controlled amount before using it in a live workflow.
At a Glance
| Field | Value |
|---|---|
| Action ID | polymarket-place-bet-batch |
| Category | EVM Onchain |
| Connector | wallet |
| Requires gas | No |
| Funds movement | None declared |
| Tags | polymarket, trading, batch, arbitrage, write |
Payload Schema
| Field | Type | Required | Description |
|---|---|---|---|
orders | array | Yes | Array of orders to submit atomically |
orderType | string | No | Order type for all orders in the batch. GTC (Good Till Cancelled), GTD (Good Till Date), FOK (Fill Or Kill), FAK (Fill And Kill). |
postOnly | boolean | No | Post-only mode — all orders are placed as maker orders only. If any would immediately match, it is rejected instead of filling as a taker. |
deferExec | boolean | No | Defer execution — orders land on the book simultaneously but matching is deferred. Useful for atomic multi-leg strategies. |
Result Schema
| Field | Type | Required | Description |
|---|---|---|---|
orders | array | Yes | Array of order results |
batchSize | number | Yes | Number of orders submitted in the batch |
submittedAt | string | No | ISO timestamp when the batch was submitted |
Examples
json{ "type": "polymarket-place-bet-batch", "payload": { "orders": [] }, "children": [], "connector": { "type": "wallet", "id": "conn_wallet" }}
bashcurl -X POST "https://api.b3os.org/v1/actions/polymarket-place-bet-batch/test" \ -H "Authorization: Bearer YOUR_API_KEY" \ -H "Content-Type: application/json" \ -d '{ "inputs": { "orders": [] }}'
Payload fields can use workflow expressions such as {{$trigger.body.amount}}, {{$nodes.fetch.result.price}}, and {{$props.asset}} when the value should come from a trigger, prior node, or reusable workflow prop.