Errors

HTTP errors, on-chain codes, and how to recover.

Failures land in one of two places — the HTTP layer, or the on-chain program when you submit a built transaction.

Page	Covers
HTTP errors	Status codes and the two error shapes (error vs err)
On-chain error codes	Program error codes (6000–6111) and what they mean
Recovery patterns	Concrete fixes: wrong RPC, not delegated, stuck withdrawal, blockhash

Quick rule: the API uses "error" for HTTP-level failures and "err" for compute failures returned inside a 200 body (quote endpoints). Always check both.