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8 clients · secrets stay placeholders

JSON (mcpServers)Claude CodeCodexOpenCodeCursorVS CodeGemini CLIGoose

{
  "mcpServers": {
    "email-signatures": {
      "type": "http",
      "url": "https://signatureforever.com/mcp"
    }
  }
}

claude mcp add --transport http email-signatures https://signatureforever.com/mcp

[mcp_servers.email-signatures]
url = "https://signatureforever.com/mcp"

{
  "$schema": "https://opencode.ai/config.json",
  "mcp": {
    "email-signatures": {
      "type": "remote",
      "url": "https://signatureforever.com/mcp",
      "enabled": true
    }
  }
}

{
  "mcpServers": {
    "email-signatures": {
      "type": "http",
      "url": "https://signatureforever.com/mcp"
    }
  },
  "deeplink": "cursor://anysphere.cursor-deeplink/mcp/install?name=email-signatures&config=eyJ0eXBlIjoiaHR0cCIsInVybCI6Imh0dHBzOi8vc2lnbmF0dXJlZm9yZXZlci5jb20vbWNwIn0%3D"
}

{
  "servers": {
    "email-signatures": {
      "type": "http",
      "url": "https://signatureforever.com/mcp"
    }
  }
}

{
  "mcpServers": {
    "email-signatures": {
      "httpUrl": "https://signatureforever.com/mcp"
    }
  }
}

extensions:
  "email-signatures":
    enabled: true
    name: "email-signatures"
    type: streamable_http
    uri: "https://signatureforever.com/mcp"
    timeout: 300

Quality 79 / 100good

protocol75 · weight 25

warn
protocol.modernnewest supported version is 2025-06-18; 2026-07-28 not supported, older versions are deprecated until 2027-07-28
n/a
protocol.statelessonly applies to 2026-07-28 servers
pass
protocol.transportstreamable HTTP
n/a
protocol.list_ttlonly applies to 2026-07-28 servers

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 hygiene71 · weight 30

pass
tools.descriptionsevery tool has a description
pass
tools.description_lengthdescriptions are concise
pass
tools.schemasevery tool has an object input schema
fail
tools.annotationsno tool declares readOnlyHint or destructiveHint, so clients cannot tell safe calls from risky ones
fail
tools.directory_hintsno tool declares all four of readOnlyHint, destructiveHint, idempotentHint and openWorldHint; missing: check_email_signature (readOnlyHint, destructiveHint, idempotentHint, openWorldHint); create_email_signature (readOnlyHint, destructiveHint, idempotentHint, openWorldHint); email_client_compatibility_matrix (readOnlyHint, destructiveHint, idempotentHint, openWorldHint); …
pass
tools.token_costabout 747 tokens to load every tool
pass
tools.api_dumptools are not a one-to-one API dump

stability100 · weight 15

pass
stability.changesno tool changes in 30 days
pass
stability.rug_pullno tool changed its meaning under the same name

dependenciesn/a · weight 15

n/a
deps.known_vulns, deps.mcp_sdk_version, deps.resolvableno npm or PyPI package

5 tools, about 747 tokens to load them all · tool set 7fdb4d2a68e6 · checked 2026-10-21 01:06 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 80 / 100

no-repository

provenance55

liveness100

freshness85

hygiene80

+dns-namespace +website +reachable +uptime-100% ~updated-41d-ago -no-repository

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

Endpoints

remote	auth	reachable	uptime 30d	p50	protocol	last ok
`https://signatureforever.com/mcp` streamable-http	none	yes	100%	1088 ms	2025-06-18	2026-10-20

Tools (5)

`check_email_signature`	Audit any email-signature HTML against what Gmail, Outlook 365, Outlook for Windows desktop, Apple Mail and iOS Mail actually do. Returns a verdict per client plus every problem found, each with the rule it breaks, why it breaks, and how to fix it. Use this when a signature renders wrong, images do not show, layout collapses in Outlook, or before sending a signature to a client. Free, no account needed.
`create_email_signature`	Build ready-to-paste email-signature HTML from a person's details. The output follows every rule that keeps a signature intact in Outlook for Windows and Gmail: tables only, inline CSS, absolute pixel widths, email-safe fonts, and images by absolute URL (never base64, which Gmail refuses to render). The free result carries one small credit line at the bottom; get_pricing explains how to remove it.
`email_client_compatibility_matrix`	The support matrix for the HTML and CSS features that decide whether an email signature survives: tables, flex/grid, <style> blocks, background-image, base64 images, border-radius, letter-spacing, text-transform, web fonts, max-width, margins and image sizing. Each row says yes/no/partial for seven real clients and explains what goes wrong. Use it to answer questions about email HTML support.
`get_pricing`	What each SignatureForever plan includes and costs, and the link to buy. Use it when the user asks what removing the credit line costs, how many signatures a plan allows, or what happens to hosted images if they stop paying.
`list_signature_templates`	The signature layouts you can pass to create_email_signature, with what each one is good for and its width in pixels.

Schemas: list_tools.

Similar MCP servers

Official server.json

{
  "name": "com.signatureforever/email-signatures",
  "title": "SignatureForever",
  "$schema": "https://static.modelcontextprotocol.io/schemas/2025-09-29/server.schema.json",
  "remotes": [
    {
      "url": "https://signatureforever.com/mcp",
      "type": "streamable-http"
    }
  ],
  "version": "1.0.0",
  "websiteUrl": "https://signatureforever.com",
  "description": "Audit and build email signatures that survive Gmail, Outlook desktop and Apple Mail."
}