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{
  "mcpServers": {
    "dead-letter": {
      "command": "uvx",
      "args": [
        "--python",
        "3.12",
        "--from",
        "dead-letter[mcp]==0.4.8",
        "dead-letter==0.4.8",
        "dead-letter-mcp"
      ]
    }
  }
}

claude mcp add dead-letter -- uvx --python 3.12 --from dead-letter[mcp]==0.4.8 dead-letter==0.4.8 dead-letter-mcp

[mcp_servers.dead-letter]
command = "uvx"
args = ["--python", "3.12", "--from", "dead-letter[mcp]==0.4.8", "dead-letter==0.4.8", "dead-letter-mcp"]

{
  "$schema": "https://opencode.ai/config.json",
  "mcp": {
    "dead-letter": {
      "type": "local",
      "command": [
        "uvx",
        "--python",
        "3.12",
        "--from",
        "dead-letter[mcp]==0.4.8",
        "dead-letter==0.4.8",
        "dead-letter-mcp"
      ],
      "enabled": true
    }
  }
}

{
  "mcpServers": {
    "dead-letter": {
      "command": "uvx",
      "args": [
        "--python",
        "3.12",
        "--from",
        "dead-letter[mcp]==0.4.8",
        "dead-letter==0.4.8",
        "dead-letter-mcp"
      ]
    }
  },
  "deeplink": "cursor://anysphere.cursor-deeplink/mcp/install?name=dead-letter&config=eyJjb21tYW5kIjoidXZ4IiwiYXJncyI6WyItLXB5dGhvbiIsIjMuMTIiLCItLWZyb20iLCJkZWFkLWxldHRlclttY3BdPT0wLjQuOCIsImRlYWQtbGV0dGVyPT0wLjQuOCIsImRlYWQtbGV0dGVyLW1jcCJdfQ%3D%3D"
}

{
  "servers": {
    "dead-letter": {
      "type": "stdio",
      "command": "uvx",
      "args": [
        "--python",
        "3.12",
        "--from",
        "dead-letter[mcp]==0.4.8",
        "dead-letter==0.4.8",
        "dead-letter-mcp"
      ]
    }
  }
}

{
  "mcpServers": {
    "dead-letter": {
      "command": "uvx",
      "args": [
        "--python",
        "3.12",
        "--from",
        "dead-letter[mcp]==0.4.8",
        "dead-letter==0.4.8",
        "dead-letter-mcp"
      ]
    }
  }
}

extensions:
  "dead-letter":
    enabled: true
    name: "dead-letter"
    type: stdio
    cmd: "uvx"
    args:
      - "--python"
      - "3.12"
      - "--from"
      - "dead-letter[mcp]==0.4.8"
      - "dead-letter==0.4.8"
      - "dead-letter-mcp"
    timeout: 300

This is a local package: the command runs on your machine.

Quality – / 100not scored

Not scored: fewer than three checks apply, usually because no remote answered a credential-free probe or the server is a local package.

protocoln/a · weight 25

n/a
protocol.modern, protocol.stateless, protocol.transport, protocol.list_ttlno remote answered a protocol handshake (not probed yet, unreachable, or local-only)

authorizationn/a · weight 15

n/a
auth.prm, auth.as_metadata, auth.cimdno remote uses OAuth
n/a
auth.secret_in_urlno templated URL

tool hygienen/a · weight 30

n/a
tools.descriptions, tools.description_length, tools.schemas, tools.annotations, tools.directory_hints, tools.token_cost, tools.api_dumptool list unknown (behind auth, not probed, or empty)

stabilityn/a · weight 15

n/a
stability.changes, stability.rug_pulltool list unknown

dependenciesn/a · weight 15

n/a
deps.known_vulns, deps.mcp_sdk_version, deps.resolvabledeps.dev does not know [email protected]

Tool list unknown · checked 2026-10-20 11:40 UTC

Tool changes

No tool definition changes recorded. A server's first observation is its baseline; later probes record what changes.

Checks run on what our credential-free, read-only probes observe; tools are never called and no code audit is performed. How it is computed.

Trust 90 / 100

provenance80

livenessn/a

freshness100

hygiene95

+repository +namespace-matches-repo ~liveness-unmeasured +updated-11d-ago -unpinned-packages(1)

Derived from observable signals (official registry feed and our own credential-free probes); no code audit performed. How it is computed.

Dependencies

[email protected] PyPIthis version is not known to the dependency resolver

Dependency graphs from deps.dev; advisories from OSV.dev, including the GitHub Advisory Database and the PyPI Advisory Database; all CC BY 4.0. The graph is what a clean install of this version resolves today; nothing was installed or run. How it is checked.

Endpoints

package	registry	version	runtime
`dead-letter`	pypi	0.4.8	uvx
`https://github.com/BigCactusLabs/dead-letter/releases/download/v0.4.8/dead-letter-mcp-0.4.8.mcpb`	mcpb	0.4.8	–
`ghcr.io/bigcactuslabs/dead-letter@sha256:ed4b3665a6d76362d9a1835fe6511c7906524acde3484331fa62998af6e1f30c`	oci	unpinned	docker

Tools (0)

No tools observed. Local packages are never executed by the registry.

Schemas: list_tools.

Similar MCP servers

Official server.json

{
  "name": "io.github.BigCactusLabs/dead-letter",
  "title": "dead-letter",
  "$schema": "https://static.modelcontextprotocol.io/schemas/2025-12-11/server.schema.json",
  "version": "0.4.8",
  "packages": [
    {
      "version": "0.4.8",
      "transport": {
        "type": "stdio"
      },
      "identifier": "dead-letter",
      "runtimeHint": "uvx",
      "registryType": "pypi",
      "registryBaseUrl": "https://pypi.org",
      "packageArguments": [
        {
          "type": "positional",
          "value": "dead-letter-mcp",
          "description": "MCP server console entrypoint"
        }
      ],
      "runtimeArguments": [
        {
          "name": "--python",
          "type": "named",
          "value": "3.12",
          "description": "dead-letter requires Python 3.12+"
        },
        {
          "name": "--from",
          "type": "named",
          "value": "dead-letter[mcp]==0.4.8",
          "description": "Install the pinned package with the MCP server extra"
        }
      ]
    },
    {
      "version": "0.4.8",
      "transport": {
        "type": "stdio"
      },
      "fileSha256": "67853e9bfa709f80d11cb3e19d907ef775d32042b97e98698bd941fb9d2c7e31",
      "identifier": "https://github.com/BigCactusLabs/dead-letter/releases/download/v0.4.8/dead-letter-mcp-0.4.8.mcpb",
      "registryType": "mcpb"
    },
    {
      "transport": {
        "type": "stdio"
      },
      "identifier": "ghcr.io/bigcactuslabs/dead-letter@sha256:ed4b3665a6d76362d9a1835fe6511c7906524acde3484331fa62998af6e1f30c",
      "runtimeHint": "docker",
      "registryType": "oci",
      "runtimeArguments": [
        {
          "type": "positional",
          "value": "--rm"
        },
        {
          "type": "positional",
          "value": "-i"
        },
        {
          "name": "--network",
          "type": "named",
          "value": "none"
        },
        {
          "type": "positional",
          "value": "--read-only"
        },
        {
          "name": "--cap-drop",
          "type": "named",
          "value": "ALL"
        },
        {
          "name": "--security-opt",
          "type": "named",
          "value": "no-new-privileges"
        },
        {
          "name": "--tmpfs",
          "type": "named",
          "value": "/tmp:rw,noexec,nosuid,size=64m"
        },
        {
          "name": "--user",
          "type": "named",
          "value": "{container_user}",
          "variables": {
            "container_user": {
              "default": "10001:10001",
              "isRequired": true,
              "description": "Unprivileged numeric UID:GID; on Linux use your host IDs for private bind mounts"
            }
          }
        },
        {
          "name": "--mount",
          "type": "named",
          "value": "type=bind,source={input_directory},target=/input,readonly",
          "variables": {
            "input_directory": {
              "isRequired": true,
              "description": "Existing absolute host directory bind-mounted at /input (read-only)"
            }
          }
        },
        {
          "name": "--mount",
          "type": "named",
          "value": "type=bind,source={output_directory},target=/output",
          "variables": {
            "output_directory": {
              "isRequired": true,
              "description": "Existing absolute host directory bind-mounted at /output (writable)"
            }
          }
        }
      ]
    }
  ],
  "repository": {
    "url": "https://github.com/BigCactusLabs/dead-letter",
    "source": "github"
  },
  "description": "Convert .eml and .mbox email to clean Markdown for RAG, LLM pipelines, and local knowledge bases"
}