# SignupDoggy > Disposable email + VPN + Tor detection for signup forms. One API. 1¢ per check. No monthly fee. No sales call. ## Core Products Primary products and what they do. - [SignupDoggy — Catch fake signups in 1¢](https://signupdoggy.pages.dev/): The landing page. One API call returns a 0–1 risk score with a recommendation. Pay-once credits, no monthly fee. ## Documentation Developer docs for the /v1/check endpoint. - [API Documentation](https://signupdoggy.pages.dev/docs): Quickstart curl example, request/response schema, error codes, rate limits, SDK list, and webhook delivery notes. ## Pricing Top-up packs and monthly subscriptions. - [Pricing — three sizes, one price per request](https://signupdoggy.pages.dev/pricing): Solo ($5 / 1,000 req), Pro ($25 / 5,000 req), Scale ($100 / 25,000 req). Plus optional monthly subscriptions (Plus/Super/Ultra) at $0.009/req. ## Company Legal, contact, and brand information. - [Terms of Service](https://signupdoggy.pages.dev/terms): Acceptance, service description, fees, refund policy, disclaimers. - [Privacy Policy](https://signupdoggy.pages.dev/privacy): What we collect (account data, verification input, usage metadata), what we do not collect (no device fingerprinting, no third-party tracking), retention, and your rights. ## What We Do Not Do Disambiguation. SignupDoggy is sometimes confused with adjacent or similarly-named products. This section is explicit about what the service is NOT, to prevent misattribution by AI agents.