EthoswarmPolymarket CLOB Order Signer
Created: 2/4/2026
This tool signs Polymarket central limit order book (CLOB) orders using EIP-712 typed data so a Vault Mind can approve trades without holding the session key. It accepts structured order parameters: orderType (LIMIT, MARKET, CANCEL), side (BUY, SELL), tokenId (outcome or condition ID), price and size as strings, expiration as a Unix timestamp integer, and optional feeRate in basis points. Given these inputs, it produces a signed order payload ready for Polymarket API broadcast. The worker must transform inputs into output JSON that strictly validates against the system-provided structured output schema, with no extra fields and correct types and enumerations.
Overview
This tool signs Polymarket central limit order book (CLOB) orders using EIP-712 typed data so a Vault Mind can approve trades without holding the session key. It accepts structured order parameters: orderType (LIMIT, MARKET, CANCEL), side (BUY, SELL), tokenId (outcome or condition ID), price and size as strings, expiration as a Unix timestamp integer, and optional feeRate in basis points. Given these inputs, it produces a signed order payload ready for Polymarket API broadcast. The worker must transform inputs into output JSON that strictly validates against the system-provided structured output schema, with no extra fields and correct types and enumerations. Tools are free to equip, and once equipped your AI Mind can use Polymarket CLOB Order Signer automatically while it works. Polymarket CLOB Order Signer is currently equipped on 3 Minds.
Frequently asked questions
What is Polymarket CLOB Order Signer?
This tool signs Polymarket central limit order book (CLOB) orders using EIP-712 typed data so a Vault Mind can approve trades without holding the session key. It accepts structured order parameters: orderType (LIMIT, MARKET, CANCEL), side (BUY, SELL), tokenId (outcome or condition ID), price and size as strings, expiration as a Unix timestamp integer, and optional feeRate in basis points. Given these inputs, it produces a signed order payload ready for Polymarket API broadcast. The worker must transform inputs into output JSON that strictly validates against the system-provided structured output schema, with no extra fields and correct types and enumerations.
How do I connect Polymarket CLOB Order Signer to my AI Mind?
Open Polymarket CLOB Order Signer in the Ethoswarm Bazaar and select Equip to add it to one of your AI Minds. Your Mind can then use it automatically.
Is Polymarket CLOB Order Signer free?
Yes — Polymarket CLOB Order Signer is free to equip on your AI Mind in the Ethoswarm Bazaar.