The solve object

// every field on a returned solve

Field	Type	Description
id	string	Unique solve id, prefixed `slv_`. Pass to retrieve.
status	string	`solved`, `pending`, or `failed`.
gate	string	Which gate was cleared — `turnstile` or `waf`.
token	string	The cleared, single-use token. Submit this to your target. Null until solved.
solve_ms	integer	Wall-clock milliseconds we spent clearing the gate.
expires_at	integer	Unix timestamp after which the token is dead.
mode	string	`live` for a real, billable solve, or `sandbox` for the deterministic test response a `sk_test_` key returns. Check this before trusting a token in production — a `sandbox` token never clears a real gate.
meter	string	What paid for this solve. `credits` debited your prepaid balance; `pass` was covered by the unlimited pass this key is attached to and cost nothing; `sandbox` was a deterministic test response. Decided when the request is admitted and never re-derived.
billed	boolean	`true` only when the gate actually opened and a credit was spent. Failed solves are never billed, and a `pass` solve is never billed either — check `meter` to tell those apart.

// free sandbox keys · no card required to start