# CallingYou.AI > Voice AI for local service businesses (HVAC first). A disclosed AI assistant answers the > business phone line, confirms and books service appointments, takes structured messages > after hours, and hands off to a human-owned channel when needed. Italy first, EU and US next. Status: PREVIEW. The agent signup API is in preview; endpoints and shapes may change. AI disclosure is always on: every call made or answered by CallingYou.AI identifies itself as a virtual assistant. This is a product invariant, not a setting. ## For AI agents - Signup runbook (two-step code, owner phone, MCP): https://callingyou.ai/agent-signup.md - Access manifest (schema 0.3): https://callingyou.ai/.well-known/agent-access.json - MCP endpoint (Streamable HTTP): https://api.callingyou.ai/mcp - OAuth authorisation-server metadata: https://api.callingyou.ai/.well-known/oauth-authorization-server - Protected-resource metadata: https://api.callingyou.ai/.well-known/oauth-protected-resource/mcp - Server card: https://api.callingyou.ai/mcp/server-card - AI catalog: https://callingyou.ai/.well-known/ai-catalog.json - API catalog: https://api.callingyou.ai/.well-known/api-catalog - API catalog on the website: https://callingyou.ai/.well-known/api-catalog ## API (preview) Base URL: https://api.callingyou.ai - POST /v1/agent/signup — send a code to the owner. Does not create the business yet - POST /v1/agent/signup/{signup_id}/verify — exchange the code for an API key, shown once - POST /v1/tenants/me/owner-phone and /verify — prove the owner's phone with the API key - GET /v1/me — the authenticated business (Bearer). Omits phone fields for an API key - GET /v1/pricing — machine-readable tiers (no amounts published during preview) - POST /v1/billing/checkout — Stripe checkout URL (may 503 during preview) - POST /mcp — MCP tools. subscribe_with_payment_token is listed only while STRIPE_PROFILE_ID is set - GET /openapi.json — OpenAPI spec for the full surface ## Humans - Website: https://callingyou.ai - Skills catalog (runtime tools, featured live-call skill, filterable by job): https://callingyou.ai/#skills - Early access: hello@callingyou.ai