Terms of Service

Last updated: August 27, 2026

Service basis

Preflight Stack provides focused software services and informational outputs on an as-available basis. Each API's current documentation and OpenAPI contract describe its supported behavior.

Payments

Paid API calls are charged at the price presented by the service's x402 payment requirement at the time of the request. Some retries may represent a new paid request depending on the service.

Appropriate use

Do not use Preflight Stack services for unlawful activity or in ways that abuse, disrupt, probe, or circumvent service limits and payment controls.

Temporary File Relay

Temporary File Relay provides temporary handoff and storage for passive files; it is not a permanent backup, private-data vault, secret-sharing service, or active website host. A published capability URL can be used by anyone who possesses it until the documented seven-day expiry.

Do not use Temporary File Relay for passwords, private keys, secrets, regulated or personal sensitive data, or active executable web content. Automatic expiry, approved media types, size limits, read ceilings, and rate limits are expected parts of service behavior. The current Relay documentation and OpenAPI contract remain authoritative for operational details.

No guarantee

Service outputs are automation inputs, not guarantees. Users and integrators remain responsible for how outputs and published capability URLs are used in their own systems and decisions.

Changes

Services, pricing, limits, and these terms may change as the product evolves. Current public documentation should be treated as authoritative for active service behavior.

Contact

Questions can be sent to support@preflightstack.com.