OpenTooler gives AI agents prepaid access to tools: your account balance is the hard spending limit, and calls are billed only after durable success.
Credits and receipts
billing topup creates a hosted checkout for an amount in USD. Receipts reconcile completed work.
Set an agent’s per-call maximum
If the current quote is above the limit, OpenTooler stops before admission and returns a structured billing error.
Idempotency and credentials
The CLI automatically creates an idempotency key for each paid agent call. If admission is uncertain, it returns INVOCATION_ADMISSION_UNKNOWN with a recovery command.
Recover an uncertain paid call only with the exact same tool, input, and
idempotency key. Do not create a new key or blindly repeat the call.
- Never put an API key in an agent prompt, command-line flag, or chat transcript.
- Use interactive login when setting up a local agent.
- Give unattended agents
OPENTOOLER_API_KEY only through a secret manager or controlled environment.
- Do not instruct agents to inspect credential files.