{"name":"Signup Risk API","description":"Developer documentation for Signup Risk API, an explainable signup-risk API that returns a deterministic 0-100 risk score and an allow, review, or block recommendation for every signup.","url":"https://docs.signuprisk.com/","version":"1.0.0","protocolVersion":"0.3","preferredTransport":"HTTP+JSON","supportedInterfaces":[{"url":"https://docs.signuprisk.com/","protocolBinding":"HTTP+JSON","protocolVersion":"0.3"}],"provider":{"url":"https://docs.signuprisk.com/","organization":"Signup Risk API"},"documentationUrl":"https://docs.signuprisk.com/","capabilities":{"streaming":false,"pushNotifications":false},"defaultInputModes":["text/plain"],"defaultOutputModes":["text/plain"],"skills":[{"id":"signup","name":"signup","description":"Use when analyzing email signups to assess registration risk, making allow/review/block decisions, processing bulk email lists, or setting up webhook notifications for high-risk registrations. Agents should reach for this skill when building signup protection, seller onboarding, account-linked promotion protection, or fraud prevention workflows.","tags":[],"url":"https://docs.signuprisk.com/.well-known/agent-skills/signup/skill.md"}]}