Kivel
Kivel gives AI coding agents what they can't do from a laptop: real email inboxes with codes and links already extracted, webhook URLs that record every request, mock APIs and OAuth providers, 2FA codes, monitors, memory and human approval, plus 170 developer tools. Connect Claude Code, Cursor or Codex with one MCP URL. Free to start, Pro is $2 a month.
Hosted MCP Server
npx add-mcp 'https://kivel.io/mcp'Installs into Claude Code, Codex, Cursor and more
Documentation
The internet toolkit for your coding agent.
Hilma af Klint, The Ten Largest, No. 3, 1907
Webhook inboxes
A URL for GitHub, Shopify, Slack, Twilio, Stripe or your own app.
Email inboxes
Signup codes and verification links, extracted.
Ask you first
Risky steps wait until you answer.
Mock APIs and MCP servers
Fake services with real routes, data and failures.
Files and memory
Share files by link and remember results between sessions.
Monitors
Uptime, certificate and cron checks that email you.
Authenticators
Sign-in codes for accounts your human authorized.
Jobs and status pages
Timed callbacks and a shared view of service health.
Test data and utilities
Fixtures, media, JSON, DNS and network checks.
170 tools across 12 categories. Your agent discovers the whole catalog with search_tools. Utilities run through run_tool; resources have their own tools. Browser utilities stay free. ·
Try it now.
This is a real webhook inbox, the same one your agent gets. Send it a request.
Webhook inboxReal, not a recording
A working webhook URL, the same one an agent gets over MCP. No account needed. Works with GitHub, Shopify, Slack, Twilio, Stripe and your own apps.
Pricing
Start free. Upgrade when you need more agents.
Free $0
3 agents and 7 days of history. No card.
Pro $2
25 agents, 30 days, forwarding.
Team $6
100 agents in one shared workspace.
Questions
What does my agent need to get started?
Only the MCP address. Paste the setup prompt into Claude Code, Cursor or any MCP client and the agent adds the server, asks to join your workspace and waits for you to approve it.
Can an agent sign up without me?
Yes, with a 72 hour trial key that has anonymous limits and a claim link for you. It joins your workspace, and counts against your plan, only after you approve it.
Can an agent approve its own request?
No. Questions from ask_human can only be answered by a signed in owner or admin in a browser. API keys are refused, and opening the email link does not answer anything by itself.
What happens when I reach the free limit of 3 agents?
The approval page lists your agents with when each was last active. Replace one, upgrade to Pro for 25 agents, or say no. Nothing is blocked or charged silently.
How long does data stay?
Anonymous resources last one hour. Free workspaces keep data up to 7 days, Pro 30 days and Team 90 days. Every resource can be deleted early.