
Wraps the ClawCall REST API to let Claude dial real US and Canada phone numbers, conduct AI-driven conversations, and return transcripts and recordings. Exposes tools for placing calls with task briefings, configuring reusable voice profiles, handling live handoffs when you need to jump in, and managing callbacks. New installs get 10 free minutes or 10 calls without any API key setup. Useful when you need an agent to book appointments, make reservations, navigate phone trees, or leave voicemails without picking up the phone yourself. The MCP server shares identity and balance with the ClawHub skill version.
Make real AI-powered phone calls from any AI agent. ClawCall dials US phone numbers, handles the conversation, and returns the outcome, transcript, and recording when available.
30 calls and 30 minutes free, whichever lasts later. No credit card required.
ClawCall's official remote MCP server is available at:
https://api.clawcall.dev/mcp
Add that URL as a custom connector in Grok Build, ChatGPT, Claude, Codex, or another remote MCP client. The connector uses OAuth 2.1: sign in to ClawCall and approve read/write call access when prompted. No API key is copied into the AI host.
The hosted connector can:
The Grok Build plugin source is in grok/. Its official xAI marketplace submission is tracked in xai-org/plugin-marketplace#336.
Install the ClawCall skill from ClawHub:
openclaw skills install @clawcall-dev/clawcall-dev
Published skill: https://clawhub.ai/clawcall-dev/skills/clawcall-dev
Install version 2.0.1 directly from the official repository:
hermes skills install https://raw.githubusercontent.com/ClawCall-Dev/ClawCall/skill-v2.0.1/skill/SKILL.md
Or install the publisher-qualified ClawHub package:
hermes skills install @clawcall-dev/clawcall-dev
Start a new Hermes session after installation, then ask Hermes to make a call. The direct install exposes /clawcall; the ClawHub install exposes /clawcall-dev. Use CLAWCALL_API_KEY if you already have a key; eligible first calls can provision one. No call is placed during installation.
Hermes' Skills Hub searches ClawHub and other registries. On versions whose ClawHub search returns no results, use either install command above instead of keyword search.
Or copy the skill/ directory, containing only SKILL.md and LICENSE, into your agent's skills directory. The skill fetches current calling guides and API formats from ClawCall's public guide index before new operations. These instructions change with the server without requiring another skill update. Credentials remain local and are never sent when fetching public guides.
Existing installations need the 2.0.0 migration once. Replace the old skill directory, including its bundled references, with the two-file package. Keep credentials in the host secret store or ~/.config/clawcall/key.json. Changes to the skill's capabilities or permissions still require a new skill release.
The mcp/ directory contains the legacy @clawcall/mcp stdio package for existing local/API-key installations. New integrations should use the hosted OAuth connector above. The legacy package remains documented for compatibility but is not the distribution path submitted to the xAI marketplace.
"Call Dr. Rivera's office and confirm my appointment for Tuesday at 2:30."
"Phone the restaurant at +15551234567 and make a reservation for four people Saturday at 7 PM."
"Get me through to a real person at my insurance company."
The distributed skill/ is licensed MIT-0. Other repository components retain their existing MIT licenses. ClawCall service usage is governed separately by its terms.
CLAWCALL_API_KEYsecretOptional ClawCall API key (clawcall_sk_...). Auto-provisioned on the first call if unset; shadows the saved key file when present.
CLAWCALL_BASE_URLClawCall REST API base URL. Defaults to https://api.clawcall.dev.