Koskamo

ainbox MCP

An MCP server that enables AI agents to send and receive messages via unique @ainbox.io addresses, facilitating context handoff between sibling agents like Claude and ChatGPT. It supports dynamic client registration via OAuth, message queuing with acknowledgment tokens, and cross-agent communication within a user's account.

Endpoint and access

OAuth sign-in: the first time you connect, your client opens the vendor's own authorization prompt in a browser.

ainbox MCP logo, by ainboxVendor evidenceStreamable HTTPOAuth sign-inEndpoint checked 2026-11-01Operated by ainbox
MCP endpoint (Streamable HTTP)
https://mcp.ainbox.io/
Vendor documentation

What you can do with it

  • Hand off context between sibling AI agents
  • Send messages to other @ainbox.io addresses
  • Pull and acknowledge queued messages
  • Discover active sibling agents

Source and maintenance

Vendor evidenceRegistry 1.0.0

Tools

Reported by the attributed source; not independently observed by Koskamo.

No tool definitions available.

30-day availability

Aggregated from read-only remote checks; this is not a tool-execution or security guarantee.

Successful checks
1 of 1 (100%)
Average latency
351 ms
95th percentile latency
351 ms

Maintenance history

Public check and source-refresh events. Editorial and ownership records remain private.

  • · probe · passed · 351 ms · metadata changed · refuses unauthenticated initialize (HTTP 401)

Connect from your client

Each snippet registers the same endpoint; pick the client you use.

This server is operated by the named third party. Listing and endpoint checks are not an endorsement or a security audit. Review the operator's permissions, terms, and data handling before connecting. How listings are checked and corrected.

Claude Code

Run this once in a terminal. It registers the remote server. Use --scope project to write .mcp.json for the repo.
Claude Code configuration
claude mcp add --transport http ainbox-mcp https://mcp.ainbox.io/

Codex

Run this once. Codex stores MCP servers in ~/.codex/config.toml (or .codex/config.toml in a trusted project).
Codex configuration
codex mcp add ainbox-mcp --url https://mcp.ainbox.io/

Cursor

Merge this server into .cursor/mcp.json in your project, then enable ainbox-mcp in your MCP settings.
Cursor configuration
{
  "mcpServers": {
    "ainbox-mcp": {
      "url": "https://mcp.ainbox.io/"
    }
  }
}

Cline

Merge this into cline_mcp_settings.json (Cline → MCP Servers → Configure).
Cline configuration
{
  "mcpServers": {
    "ainbox-mcp": {
      "type": "streamableHttp",
      "url": "https://mcp.ainbox.io/",
      "disabled": false
    }
  }
}

VS Code

Merge this server into .vscode/mcp.json. Use MCP: List Servers to start ainbox-mcp and inspect its tools.
VS Code configuration
{
  "servers": {
    "ainbox-mcp": {
      "type": "http",
      "url": "https://mcp.ainbox.io/"
    }
  }
}

Gemini CLI

Run this once. It writes .gemini/settings.json in the current project; pass --scope user for ~/.gemini/settings.json.
Gemini CLI configuration
gemini mcp add --transport http ainbox-mcp https://mcp.ainbox.io/

Claude Desktop

Merge this into claude_desktop_config.json (macOS: ~/Library/Application Support/Claude/, Windows: %APPDATA%\Claude\), then restart Claude Desktop.
Claude Desktop configuration
{
  "mcpServers": {
    "ainbox-mcp": {
      "url": "https://mcp.ainbox.io/"
    }
  }
}

Windsurf

Merge this into ~/.codeium/windsurf/mcp_config.json, then refresh MCP in Cascade. Windsurf remote servers use serverUrl, not url.
Windsurf configuration
{
  "mcpServers": {
    "ainbox-mcp": {
      "serverUrl": "https://mcp.ainbox.io/"
    }
  }
}

Let your agent find its tools

Find servers like ainbox MCP from your agent. Add Koskamo once to search the index for endpoints, access requirements, and client setup. Public discovery needs no key.

Do you run ainbox MCP?

Prove ownership with a DNS record, a well-known file, or your Official MCP Registry entry, and your edits publish immediately. Proofs are re-checked weekly; admins can still hide or remove a listing.

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