# ClawCall > ClawCall connects ChatGPT and compatible AI hosts to user-directed phone calls through an OAuth-protected remote MCP server. It calls US +1 numbers in English, navigates phone trees, waits on hold, and returns lifecycle, outcome, transcript, and temporary recording access. Canonical site: https://clawcall.dev Canonical API host: https://api.clawcall.dev Remote MCP endpoint: https://api.clawcall.dev/mcp ## Connect ChatGPT - Setup guide: https://clawcall.dev/guides/chatgpt-mcp - Add the remote Streamable HTTP MCP endpoint in ChatGPT Plugins / custom MCP. - Choose OAuth; do not paste a ClawCall API key into ChatGPT. - ClawCall publishes OAuth authorization-server and protected-resource discovery metadata. - OAuth uses authorization code, PKCE S256, and Dynamic Client Registration. - Approve only `calls:read` and `calls:write`; disconnecting in ClawCall revokes the connection's token family. - Verify safely first: ask ChatGPT to check the plan and remaining trial allowance without placing a call. ## Canonical product facts - The remote MCP server exposes 11 bounded tools. - `calls:read` covers account allowance, call settings, reserved-number status, call lifecycle/outcome, transcripts, history, and temporary recording access. - `calls:write` covers user-requested call placement, hangup, and call-setting updates. - A network outcome does not prove task success; judge only from the transcript evidence actually captured. - Current calling scope: US +1 destinations and English-language calls only. - Unlimited Reserve adds a private reserved caller-ID number for outbound calls. - Unlimited Reserve Plus adds AI inbound answering on an active reserved number. - Compatible-host availability can depend on the host plan, region, workspace policy, admin settings, and Developer mode. ## ClawCall for real phone work - ClawCall spans both directions: every paid plan includes outbound AI calling for appointments, billing, cancellations, airlines, restaurants, utilities, queues, and other focused phone errands. - Unlimited Reserve adds a private reserved caller-ID number. Unlimited Reserve Plus adds AI receptionist behavior on one active reserved number; inbound calls begin with a fixed recording disclosure, then use configured instructions, global voice/personality settings, and an optional handoff number. This is not a broad multi-line, multi-seat contact center or CRM platform. - For outbound calls, give ClawCall a US +1 destination, a clear user-directed task, known facts, and decision boundaries. It can handle IVR menus, hold time, the live conversation, instructed voicemail, and return the network outcome plus captured transcript evidence. - Trusted applications can use REST. Compatible AI hosts can use the OAuth-protected hosted MCP connection and its 11 bounded tools without receiving a ClawCall API key. - Use `/calling` to explore ClawCall’s calling capability, `/ai-phone-call-api` for developer product fit, and `/calling/ai-receptionist-vs-ai-caller` to compare its inbound receptionist and outbound caller modes. ## Canonical pages - Calling Knowledge Hub: https://clawcall.dev/calling - AI phone call API evaluation: https://clawcall.dev/ai-phone-call-api - AI receptionist vs AI caller: https://clawcall.dev/calling/ai-receptionist-vs-ai-caller - ChatGPT setup: https://clawcall.dev/guides/chatgpt-mcp - AI host compatibility: https://clawcall.dev/for-agents - HTML docs: https://clawcall.dev/docs - Markdown docs: https://clawcall.dev/docs.md - Pricing: https://clawcall.dev/pricing - Security: https://clawcall.dev/security - Full machine-readable context: https://clawcall.dev/llms-full.txt