Predict.fun has no server-side credentials to provision — orders are signed at submission time. This endpoint does the one-time on-chain setup instead: it approves USDT and ConditionalTokens across all four (yieldBearing × negRisk) market variants, gas-sponsored on BSC. A wallet must run this once before its first Predict.fun order; the executor does not approve per trade. Idempotent. Variants already approved are no-ops. A wallet that was only partially approved re-submits just the missing variants on the next call, so retrying is safe.

Error shape. This endpoint returns the minimal {"error": "...", "code": "..."} body (OrderSimpleErrorResponse), NOT the structured error_details envelope used by the Polymarket and Opinion equivalents. Codes: INSUFFICIENT_SCOPE, PLATFORM_API_ACCESS_DISABLED, RATE_LIMITED, INVALID_USER_ID, DATABASE_ERROR. Rate limited at 5 requests/minute per user (bucket clob-provisioning, shared with the other heavy-provisioning endpoints), fail-closed, and checked BEFORE the ownership query so a flood cannot load the database. Each allowed call can launch up to 12 sponsored BSC approvals. Auth & scope. Requires trade:execute for predictfun, wallet ownership, and the mutation gate.