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SignaMail MCP server

Which MCP servers are SignaMail's own, from the official registry and from asking its own domain, whether they answer, and what they offer. A program checked each of these, nobody copied them from a product page.

read 2026-10-21

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Whose server it is
  • Registry namefr.signamail/signamailverified in the MCP registry

The registry name sits under signamail.fr. The registry only lets a publisher use that namespace after proving control of the domain through DNS or HTTP.

When we asked itchecked 2026-10-21
  • Stateanswerschecked 2026-10-21
  • Tools6
  • Server calls itselfsignamail
  • Server version1.0.0
  • Protocol version2025-06-18

On 2026-10-21 the server answered initialize and tools/list without a sign-in. First answer in 207 ms.

Should an agent connect itNot proven either way yet
  • Whether its tools do the product's job has not been judged yet.

Once connected

  • Parameters are untyped or undescribed in 2 of 6 tools: check arguments before calling.

Said by rules from the measurements above. The likely first call is a model's pick from the tool list; read its description before relying on it.

Measured dailydaily checks: 14, the first on 2026-10-22
  • INITE MCP score98 of 100answers 100 · definitions 94 · context 100 · connects 100
  • Answered100% of days14 of 14 daily checks
  • Median first answer530 ms
  • Space in an agent's context≈ 1,088 tokensthe definitions of all its tools (6), which an agent carries on every turn
  • Tool definitionsA · 94 of 100
  • Typed results0 of 6 toolsdeclared outputSchema: results come typed, read once
  • Parameters without a description: in 2 of 6

What an agent can do with it

  • not sure · roll out one email signature to every employee
  • not sure · share a digital business card with a QR code
  • not sure · update a shared brand signature once for everyone

Each of the product's use cases, put to Jev against this server's tool list: can an agent do it with these tools?

Worth a look

None of the five warning signs in these definitions.

A program checks the server once a day: initialize and tools/list, no model. Tokens are the definitions' length at about four characters a token. The grade averages six checks of every tool's name, description, schema and annotations; it says how well the tools are described, not whether they work. The score weighs what was measured and nothing else: answering (25%), doing the product's job (25%), definitions (20%), context (10%), use (10%) and how readily a client connects (10%). A part that was not measured is left out, and a hidden instruction caps the score at 40. The state of vendors' MCP servers: method and numbers →

Tools it offers6 tools · read 2026-10-21
  • generate_email_signature

    Builds a professional HTML email signature (tables and inline styles, compatible with Gmail, Outlook, Apple Mail and Thunderbird) from the user's details. Returns the HTML, how to install it, and, if a profession is given, the legal…

  • list_professions

    Lists the professions (France) for which SignaMail documents the mentions required in an email signature: lawyer, real estate agent, doctor, accountant, craftsman, sole trader... Use a slug with get_profession_signature_rules or…

  • get_profession_signature_rules

    Returns what a French professional must, should and must not put in an email signature for a given profession (mandatory mentions, recommended ones, mentions to avoid), with tips, common mistakes and official sources.

  • check_email_domain

    Checks the SPF, DKIM and DMARC DNS records of an email domain and explains what to fix so that emails do not land in spam (Gmail and Yahoo sender requirements). Read-only DNS lookups.

  • get_install_instructions

    Step-by-step instructions (French UI labels) to install an HTML email signature in a given mail client.

  • get_signamail_plans

    SignaMail plans and prices (excluding VAT), what each includes and how to sign up. Use it when the user needs signatures for a team or a digital business card.

How to connect

Add the server to your MCP client config. Claude Desktop, Cursor and most other clients read this shape:

{
  "mcpServers": {
    "signamail": {
      "type": "http",
      "url": "https://www.signamail.fr/mcp"
    }
  }
}

Add it

Claude Code, in a terminal

claude mcp add --transport http signamail https://www.signamail.fr/mcp

Add to CursorAdd to VS Code

claude.ai, ChatGPT and other clients: add https://www.signamail.fr/mcp as a custom connector in the settings.

Each line is something a program found when it went looking: the registry entry, the server's own answer, a spec that parses. A missing line means we did not find it, not that it does not exist.