addy.io MCP Server

by former-strangerio.github.Former-Stranger/addy-mcpv0.1.2

Manage addy.io email aliases, recipients, domains, rules and blocklist.

0Pythonstdioofficial registry

context tax

pending

security

97/100

cold start

pending

freshness

Active5d ago

Our reading of addy.io, from the data

addy.io is a email MCP server from former-stranger, listed in the official MCP Registry.

We haven't measured its tool list yet, so its token cost is unknown.

Maintenance is active: the last public signal was 5 days ago (2026-10-14). For comparison, 75% of email servers are active or maintained.

With 0 GitHub stars it ranks #267 of 932 email servers we index.

It runs locally on your machine over stdio and needs one secret (ADDY_API_KEY); use a scoped, least-privilege key.

Install addy.io MCP server

claude mcp add addy -e ADDY_API_KEY='<addy-api-key>' -- uvx addy-mcp

{
  "mcpServers": {
    "addy": {
      "command": "uvx",
      "args": [
        "addy-mcp"
      ],
      "env": {
        "ADDY_API_KEY": "<addy-api-key>"
      }
    }
  }
}

Add to ~/.cursor/mcp.json (global) or .cursor/mcp.json (project).

{
  "mcpServers": {
    "addy": {
      "command": "uvx",
      "args": [
        "addy-mcp"
      ],
      "env": {
        "ADDY_API_KEY": "<addy-api-key>"
      }
    }
  }
}

Settings → Developer → Edit Config (claude_desktop_config.json), then restart.

{
  "servers": {
    "addy": {
      "type": "stdio",
      "command": "uvx",
      "args": [
        "addy-mcp"
      ],
      "env": {
        "ADDY_API_KEY": "<addy-api-key>"
      }
    }
  }
}

Add to .vscode/mcp.json in your workspace.

{
  "mcpServers": {
    "addy": {
      "command": "uvx",
      "args": [
        "addy-mcp"
      ],
      "env": {
        "ADDY_API_KEY": "<addy-api-key>"
      }
    }
  }
}

Add to ~/.codeium/windsurf/mcp_config.json.

Configuration

Variable	Required	Secret	Description
ADDY_API_KEY	yes	yes	Your addy.io API key (create one at https://app.addy.io/settings/api). Alternatively set ADDY_API_KEY_FILE.
ADDY_API_KEY_FILE	—	—	Path to a file containing the API key; takes precedence over ADDY_API_KEY
ADDY_READ_ONLY	—	—	Set to true to hide every tool that can change your account
ADDY_BASE_URL	—	—	Base URL for a self-hosted addy.io instance

Security signals

97/100 — no known issues found as of 2026-10-19, from the checks below. This is not a guarantee of safety; review what a server can do before connecting it.

Deductions

No security policy (SECURITY.md)-3

Checks

✓Repository hygiene (archived, activity, license, security policy)
○Package metadata (install scripts, provenance) — pending
○Tool descriptions (prompt-injection and hidden-text heuristics) — pending
○Source scan (secrets, CVEs, risky code) by vectra-guard — pending

Scan it yourself before installing with vectra-guard, the open-source agent security CLI. Scoring rules

Freshness

Active — last maintenance signal 5d ago. The newest of the signals below sets the band.

Last commit (default branch)
2026-10-14 · 5d ago · GitHub
Latest release
2026-10-14 · 5d ago · GitHub · v0.1.2
Package published
no data · npm/PyPI
Registry entry updated
2026-10-14 · 5d ago · official registry · v0.1.2

How it compares in Email

Against the most-starred email servers we index. Token cost is per model turn, measured from each server's live tool list.

Server	Stars	Tools	Tokens / turn	Freshness	Runs
addy.io (this)	0	—	not measured	Active	local
Inbox Zero	12,649	—	not measured	Active	hosted
Useplunk	5,524	—	not measured	Active	local
Google Workspace	3,370	—	not measured	Active	—
OpenOSINT	1,776	—	not measured	Active	local
emailmd	1,382	3	954	Active	local + hosted

All email MCP servers

FAQ

›How do I install the addy.io MCP server in Claude Code?

Run: claude mcp add addy -e ADDY_API_KEY='<addy-api-key>' -- uvx addy-mcp. For Cursor, VS Code, Claude Desktop and Windsurf, use the install tabs above.

›Does addy.io require an API key?

Yes. It expects ADDY_API_KEY, of which 1 is a secret.

›Can I use addy.io as a remote (hosted) MCP server?

No hosted endpoint is published; it runs locally over stdio.

›Is addy.io in the official MCP registry?

Yes, as io.github.Former-Stranger/addy-mcp.

Sources and method

Official MCP Registry entry: updated 2026-10-14
GitHub repository: fetched 2026-10-19
Package registry (npm / PyPI): listed
Security signals, computed by us: 2026-10-19
Last checked against all sources: 2026-10-19

The description, packages and links come from the maintainer's own published metadata. Token cost, security signals, freshness and the reading above are MCPSkillHub's own measurements; see the methodology. Spot an error? Request a correction or claim the listing.