/v1 errors return JSON with a machine-readable code, a human-readable message, and an internalRequestId. Some errors also include extraData.
Status codes
If your webhook receiver rejects a bad HMAC signature, return
401 from that receiver. That is separate from partner API auth — see Webhook setup.Related
Usage
Company rate limits for REST and MCP, and how to handle
429.Overview
Base URL, response wrappers, and pagination conventions.
Authentication
API keys, Bearer tokens, and scopes.
Webhook setup
Verify signatures on inbound deliveries to your URL.