Ancillary Data JSON Specification

Reference page for the ancillary-data JSON format used by Polymarket V2 oracle requests.

Reference

Reference page for the ancillary-data JSON format used by Polymarket V2 oracle requests.

How to use this page

Use this reference when configuring integrations, deployment tooling or monitoring. Validate network- and contract-specific values against the current production environment before execution.

Pre-deployment checks

• Confirm the target environment.
• Verify addresses and identifiers before signing transactions.
• Keep configuration values versioned with your integration.