The request names "callkit" without a clear match among the candidates. CallerKit 1 is the closest fit by name: a caller ID and phone lookup REST API that offers an MCP server. Other candidates are general platforms (Slack, LiveKit, Twilio-style voice tools) that only partly overlap with calling. Note that CallerKit's page says nothing about being named "CallKit" specifically, so confirm the exact product you mean.
A question back: Did you mean CallerKit's caller ID API, or a tool for placing or handling phone calls (for example voice AI or call automation)?
- 1
CallerKitcaller-kit.comwebsite read, tools not yet checked
A caller ID and reverse phone lookup REST API with an MCP server, sample code in several languages, and JSON responses 1.
official:MCP server · CallerKit
- 2
LiveKitlivekit.ioverified and signed
An open source framework and developer platform for building voice and video agents, with a telephony-capable real-time stack 4.
+7 community tools built for it
for agents: livekit · audio · video
- 3
OpenClaw.Directopenclaw.directverified and signed
A managed AI assistant platform whose voice-call and ringbot tools place outbound AI phone calls 8.
official:MCP server · OpenClaw Direct+181 community tools built for it
for agents: voice-call · ringbot · sveltekit-webapp
Sources
- 1Caller ID API & Global Phone Lookup | CallerKitcaller-kit.com · read 2026-10-29
- 4Build voice, video, and physical AI | LiveKitlivekit.com · read 2026-10-29
- 8Fully Managed OpenClaw Hosting — AI Assistant — OpenClaw.Directopenclaw.direct · read 2026-10-29
For agents: the 10 actions behind this answer
· Caller ID API & Global Phone Lookup website read, tools not yet checked
CallerKit — Powerful Caller ID & Phone Lookup API for developers and companies. Real-time caller identification, reverse phone lookup, global coverage, and easy REST API integration. Try our API Playground for free online caller ID, phone number lookup, and searching contacts by name or email.
calls_add · Slack Web API verified and signed
Registers a new Call.
declarative-agents · declarative-agents verified and signed
Complete development kit for Microsoft 365 Copilot declarative agents with three comprehensive workflows (basic, advanced, validation), TypeSpec support, and Microsoft 365 Agents Toolkit integration
livekit · livekit verified and signed
custom_api_call · Stripe (Activepieces) verified and signed
Custom API Call — Make a custom API call to a specific endpoint
API · looker-sdk verified and signed
generate_agent_rule · CallLint found in code, not yet checked
Generate the CallLint agent-safety rule text for a host (e.g. claude, cursor, copilot, agents). Paste into the host's rules file.
voice-call · voice-call verified and signed
Start voice calls via the OpenClaw voice-call plugin.
copilotkit · copilotkit verified and signed
Use when building with CopilotKit — setup, development, integrations, debugging, upgrading, or contributing. Routes to the appropriate specialized skill based on the task.
List Payable APIs · Agent Ready Kit verified and signed
Use this when someone asks what they can buy per-call, asks the price of a specific API (site audit, AI-citation check, counterparty trust verification, bulk/batch scanning, Bazaar listing or keepalive), or is an agent looking for somethin…
Labels are the instruments' verdict and are never changed by ranking. Agents and robots get this same answer as JSON at /api/v1/find?q=…&answer=1 and through the MCP server.