Sendfeather MCP Server

by sendfeather Your server? Claim it

answering

Sendfeather is answering right now. Last checked 2 min ago.

Send transactional email and check delivery: bounces, suppressions, per-provider stats.

Uptime history 6 days of history · worst day 97%

6 days agonow

100.0%

Uptime 24h

92 of 92 checks

—

Tools

hidden behind auth

218 ms

Response time

average over 24h

API key

Access

streamable-http

Sendfeather does not always answer

Over the last week it answered 99.3% of our checks. We check every 15 minutes, so you hear about the next outage within the hour — not from your users.

Connect this server

Endpoint below is the one we actually reach during checks — not the one copied from a README. Last verified 2 min ago.

Claude Code Claude Desktop Codex Cursor VS Code

run in your terminal

claude mcp add mcp --transport http https://sendfeather.com/api/mcp

Settings → Connectors → Add custom connector, then paste this address

https://sendfeather.com/api/mcp

~/.codex/config.toml

[mcp_servers.mcp]
url = "https://sendfeather.com/api/mcp"

.cursor/mcp.json

{
  "mcpServers": {
    "mcp": {
      "url": "https://sendfeather.com/api/mcp"
    }
  }
}

.vscode/mcp.json

{
  "servers": {
    "mcp": {
      "type": "http",
      "url": "https://sendfeather.com/api/mcp"
    }
  }
}

This endpoint answered with an authorization challenge. The server is running, but you need an API key from its owner to call it.

Endpoints

URL	Transport	State	Latency	Checked
https://sendfeather.com/api/mcp	streamable-http	needs key	219 ms	2 min ago

Alternatives to Sendfeather

same job, measured the same way

Postmark

by mcparmory

Send, track, and manage transactional and bulk email delivery

233 installs/wk local only

Mailersend

by mcparmory

Send transactional emails, manage domains, and track delivery analytics

215 installs/wk local only

SendGrid Transactional

by neschadin

SendGrid transactional email: preflight send, templates, and delivery diagnostics.

86 installs/wk local only

Couryo

by couryo

Transactional email API: send, read delivery timelines, explain bounces, manage domains (OAuth).

answering

Groundmail

by groundmail

Send transactional email and manage domains, templates, webhooks and suppressions with Groundmail.

1 920 installs/wk answering

ParseBounce

by parsebounce

Email deliverability monitoring and sending: bounces, complaints, suppression, campaigns.

answering

Truncus

by truncus

Send transactional emails from AI agents via Truncus. Validate, track delivery, and manage domains.

local only

by wraps

Send email through your own Amazon SES account, and check domains, suppressions and sandbox status.

415 installs/wk local only

Sendfeather — questions

Answers built from our own checks of this server.

Why is there no tool list for Sendfeather?

The server answered our handshake with an authorization challenge, so it is running — but it will not describe its tools to an anonymous client. To see them you need to connect with your own credentials. We record it as alive, not as broken: 100.0% of checks in the last 24 hours got a reply.

Is Sendfeather working right now?

We send a real MCP handshake every 15 minutes. Over the last 24 hours 92 of 92 checks got a reply (100.0%), average response time 218 ms. The bar chart above shows every period we have measured.

How do I connect Sendfeather?

Copy the ready config from this page. We generate it for Claude Code, Claude Desktop, Codex, Cursor and VS Code, each in the form that client actually reads. It is a remote server, so there is nothing to install — the client connects to the address. You will need your own key: it refuses anonymous clients.

Does Sendfeather need an API key?

Yes. Every time we knock, Sendfeather answers with an authorization challenge instead of its tool list — that is how we know it is running and gated rather than broken. Bring your own credentials and it will talk.

How fast is Sendfeather?

It answers our handshake in 218 ms on average, which is faster than 66% of all working MCP servers we measure. The comparison comes from our own checks across the whole registry, every 15 minutes.