# io.github.sendsoon/mcp (pypi · sendsoon-mcp)

Send email, look up public IP information, and convert files to Markdown through SendSoon.

- Trust score: 92/100 (high trust)
- Change this week: +11
- Registry status: active
- Liveness: live
- Owner verified: no
- Last scored: 2026-10-04

## Components

- npm · `@sendsoon/mcp`: 91/100, [markdown](https://verifymcp.io/servers/sendsoon-mcp/sendsoon-mcp.md), [page](https://verifymcp.io/servers/sendsoon-mcp/sendsoon-mcp)
- pypi · `sendsoon-mcp`: 92/100 (this document), [markdown](https://verifymcp.io/servers/sendsoon-mcp/sendsoon-mcp-2.md), [page](https://verifymcp.io/servers/sendsoon-mcp/sendsoon-mcp-2)

## Channel facts

- Registry: `pypi`
- Package: `sendsoon-mcp`
- Version: `0.3.8`
- Transport: `stdio`

## Trust breakdown

How this component scores in each security and reliability category. Every signal is checked automatically from public evidence about the published package, including repeated runs of it in an isolated sandbox, and we only credit what we can confirm. Scores are 0–100 per category. Scoring method: https://verifymcp.io/docs/scoring (what has changed: https://verifymcp.io/docs/scoring/changelog)

Scored 2026-10-04.

- **Supply Chain Security**: 100/100
  - No malware found by supply-chain analysis.
  - No known CVEs affecting this package version or its production dependencies.
  - Runs hatchling.build at install time, a recognised build step with no custom scripting around it.
  - 0 of 28 dependencies flagged as unhealthy.
- **Provenance & Transparency**: 97/100
  - Source repository is publicly reachable at the declared URL.
  - Cryptographically verified build provenance (signed, bound to sendsoon/mcp).
  - Clear OSI-approved license (MIT).
  - Actively maintained (last published 37 days ago).
  - Disclosure check failed: no security disclosure policy was found in the source repository.
- **Schema Quality & AI Usability**: 82/100
  - AI-judged instruction clarity (excellent).
  - Tool/resource definitions use about 298 tokens (~99/item across 3 items; 3 tools + 0 resources), lean.
  - Usage-examples check failed: none of the tools include examples.
- **Stability & Change Management**: 80/100
  - Stability observed for 24 of 30 days with no destabilising changes; credit accrues until the full window elapses.
- **Tool Coverage**: 100/100
  - 100% of tools have a non-trivial description (not blank, and not just the tool's name).
  - 100% of tool parameters carry a description.
  - Structured output schemas are declared (100% of tools); any adoption earns full credit.
- **Tool Safety**: 75/100
  - No prompt-injection markers were found in the server instructions, tool names or descriptions we captured.
  - 0 of 1 tool(s) whose name or description implies an irreversible operation declare an MCP destructiveHint annotation; "send_email" implies "send" and declares no destructiveHint at all, which the MCP spec reads as destructive by default.
  - An AI judge read all 3 captured unit(s) of tool text and found none that tries to manipulate the model reading it.
- **Capabilities**: 100/100
  - Implements a supported MCP spec version (2025-11-25); the latest is 2026-07-28.

## Install

### How do I install the io.github.sendsoon/mcp server?

io.github.sendsoon/mcp runs locally as a PyPI package, launched with uvx sendsoon-mcp. Ready-made configuration for Claude, Cursor, VS Code, Codex and 5 more is on this page, copied from each client's own documentation.

### Claude

```bash
claude mcp add sendsoon-mcp -- uvx sendsoon-mcp
```

### Cursor

```json
{
  "mcpServers": {
    "sendsoon-mcp": {
      "command": "uvx",
      "args": [
        "sendsoon-mcp"
      ]
    }
  }
}
```

### VS Code

```json
{
  "servers": {
    "sendsoon-mcp": {
      "command": "uvx",
      "args": [
        "sendsoon-mcp"
      ]
    }
  }
}
```

### Codex

```bash
codex mcp add sendsoon-mcp -- uvx sendsoon-mcp
```

### opencode

```json
{
  "$schema": "https://opencode.ai/config.json",
  "mcp": {
    "sendsoon-mcp": {
      "type": "local",
      "command": [
        "uvx",
        "sendsoon-mcp"
      ],
      "enabled": true
    }
  }
}
```

### OpenClaw

```bash
openclaw mcp add sendsoon-mcp --command uvx --arg sendsoon-mcp
```

### Hermes

```yaml
mcp_servers:
  sendsoon-mcp:
    command: "uvx"
    args: ["sendsoon-mcp"]
```

### Netclaw

```json
{
  "McpServers": {
    "sendsoon-mcp": {
      "Transport": "stdio",
      "Command": "uvx",
      "Arguments": [
        "sendsoon-mcp"
      ]
    }
  }
}
```

### Vellum

```bash
assistant mcp add sendsoon-mcp -t stdio -c uvx -a sendsoon-mcp
```

### Other

```json
{
  "mcpServers": {
    "sendsoon-mcp": {
      "command": "uvx",
      "args": [
        "sendsoon-mcp"
      ]
    }
  }
}
```

## Changelog

Every change recorded for this component, newest first. Days that predate change tracking, or that we cannot explain, say so: "we were watching and nothing happened" and "we were not watching" are different claims.

### 2026-10-04 (score 92, −3)

- [functional] Stability: pass → 0.80

### 2026-10-03 (score 95, +1)

- [security] Stability: 0.97 → pass

### 2026-10-01 (score 94, +1)

No change was recorded against any check on this day. Stability & Change Management went from 90 to 93. That category is still filling its 30-day observation window: 27 days of observed history at the previous scan, 28 at this one. The score rises as the window fills, whether or not the server changes.

### 2026-09-29 (score 93, +1)

No change was recorded against any check on this day. Stability & Change Management went from 83 to 87. That category is still filling its 30-day observation window: 25 days of observed history at the previous scan, 26 at this one. The score rises as the window fills, whether or not the server changes.

### 2026-09-28 (score 92, +11)

- [functional] We updated how we score, so this day's move reflects our rubric, not a change to the server

### 2026-09-27 (score 81, −3)

- [functional] Stability: pass → 0.80

### 2026-09-26 (score 84, 0)

- [security] Stability: 0.97 → pass

### 2026-09-25 (score 84, +16)

- [functional] We updated how we score, so this day's move reflects our rubric, not a change to the server

## MCP tools (3)

### `send_email` (~155 tokens)

Send Email

Send one test email through SendSoon. Pass the recipient in the to parameter. Without SENDSOON_API_KEY, one public IP can send up to 3 free test emails per day; after that, register on SendSoon, generate an API Key, and configure SENDSOON_API_KEY. Set content_type to text/html for HTML body.

Input parameters:

- `body` (string, required): Email body (plain text or HTML; max 512,000 UTF-8 bytes)
- `content_type`: MIME content type for body (default: text/plain)
- `idempotency_key`: Optional stable key that prevents duplicate delivery when callers retry
- `subject` (string, required): Email subject line
- `to` (string, required): Recipient email address

### `ip_lookup` (~45 tokens)

IP Lookup

Look up geolocation and ISP info for a public IPv4 or IPv6 address via SendSoon

Input parameters:

- `ip` (string, required): Public IPv4 or IPv6 address to look up

### `markitdown_convert` (~98 tokens)

File to Markdown

Convert a local document to Markdown via SendSoon. Supported: pdf, docx, pptx, xlsx, xls, txt, md, html, htm. Images (png, jpg, etc.) and direct URLs are not supported. Provide file_path; the file name is detected automatically (max 10 MB).

Input parameters:

- `file_path` (string, required): Local path to the file to convert. The file name is detected automatically.

## Diagnostics

Captured diagnostic sections: Provenance, Install scripts, Dependencies. The full working is on the page: https://verifymcp.io/servers/sendsoon-mcp/sendsoon-mcp-2#diagnostics

## Score history

- 2026-10-04: 92
- 2026-10-03: 95
- 2026-10-02: 94
- 2026-10-01: 94
- 2026-09-30: 93
- 2026-09-29: 93
- 2026-09-28: 92
- 2026-09-27: 81
- 2026-09-26: 84
- 2026-09-25: 84
- 2026-09-24: 68
- 2026-09-23: 68
- 2026-09-22: 67
- 2026-09-21: 67
- 2026-09-20: 66
- 2026-09-19: 66
- 2026-09-18: 65
- 2026-09-17: 65
- 2026-09-16: 65
- 2026-09-15: 64
- 2026-09-14: 64
- 2026-09-13: 63
- 2026-09-12: 63
- 2026-09-11: 62
- 2026-09-10: 62
- 2026-09-09: 61
- 2026-09-08: 61
- 2026-09-07: 60
- 2026-09-06: 60
- 2026-09-05: 59

## Common questions

### What is the io.github.sendsoon/mcp server?

io.github.sendsoon/mcp is listed in the public MCP registry as io.github.sendsoon/mcp. Send email, look up public IP information, and convert files to Markdown through SendSoon. This page covers its PyPI package (sendsoon-mcp).

### Is the io.github.sendsoon/mcp server safe to use?

io.github.sendsoon/mcp scores 92 out of 100 on VerifyMCP. We found no known CVEs affecting it as of 4 October 2026. Its build provenance is signed and verified. That is a record of what we were able to check automatically, not an endorsement. The category breakdown on this page shows every signal behind the number, including the ones we could not confirm.

### What tools does the io.github.sendsoon/mcp server expose?

io.github.sendsoon/mcp exposes 3 tools: send_email, ip_lookup, markitdown_convert. Their descriptions and schemas cost roughly 298 tokens of context every time the server is loaded.

### Is the io.github.sendsoon/mcp server still maintained?

io.github.sendsoon/mcp is still listed as active in the MCP registry. We last reached this channel on 4 October 2026. Those dates come from our own scans of the registry and the channel itself, not from anything the publisher announced.

### What licence is the io.github.sendsoon/mcp server under?

io.github.sendsoon/mcp declares the MIT licence, which is OSI-approved. That covers the source only, and says nothing about the cost of any service it calls.

## Links

- PyPI project: https://pypi.org/project/sendsoon-mcp/
- Socket report: https://socket.dev/pypi/package/sendsoon-mcp
- Repository: https://github.com/sendsoon/mcp
- Website: https://www.sendsoonai.com/
- Changelog RSS feed: https://verifymcp.io/servers/sendsoon-mcp/sendsoon-mcp-2.xml
- Changelog JSON feed: https://verifymcp.io/servers/sendsoon-mcp/sendsoon-mcp-2.json
- HTML version of this page: https://verifymcp.io/servers/sendsoon-mcp/sendsoon-mcp-2