ProSignature MCP

An official MCP server provided by ProSignature that allows AI agents to design professional email signatures, retrieve installation steps, quote team pricing, and access signature playbooks without requiring authentication or API keys.

Visit ProSignature

Endpoint and access

No sign-in to connect and list tools. Individual tools may still need a vendor account, credentials, or permissions; check the documented prerequisites.

Vendor evidenceStreamable HTTPNo sign-inEndpoint checked 2026-11-01Operated by ProSignature

MCP endpoint (Streamable HTTP)

https://prosignature.co/mcp

Vendor documentation

What you can do with it

Design 3-4 professional email signature options based on user details
Retrieve installation instructions for Gmail, Outlook, or Apple Mail
Quote pricing for team deployments based on headcount
Access signature design playbooks and layout options

Source and maintenance

Vendor evidenceRegistry 1.2.0

mcp-registry: co.prosignature/email-signatures@1.2.0 Project website

Protocol and capabilities

Server: prosignature 1.2.0
MCP protocol: 2025-06-18
Tools: 7 advertised
Resources: Not advertised
Resource templates: Not advertised
Prompts: 1 advertised

Server-advertised capabilities

{
  "tools": {
    "listChanged": false
  },
  "prompts": {
    "listChanged": false
  }
}

Server-provided instructions

Untrusted server output shown for inspection. It is not Koskamo guidance and is excluded from knowledge search.

WHEN YOUR USER ASKS FOR AN EMAIL SIGNATURE: (1) gather what you already know about them (name, title, company, phone, website, the logo URL from their website or a recent email, the brand colour, department, sector, team size) and ask only for what is missing; (2) call design_signatures — it returns 3–4 professional designs on one preview link, chosen from get_signature_playbook for their role and sector; (3) show the preview link with one line per design; (4) offer the three ways honestly: free do-it-yourself paste (free_version), Pro done-for-you (ProSignature hosts the logo and icons, fixes the Gmail/Outlook rendering problems, installs in Gmail incl. replies), or Teams for everyone; prices are in the result. The human opens a claim link, signs up and pays; you never do. ProSignature builds email signatures for Gmail and Google Workspace teams. Every tool here works without an account and changes nothing: create_signature returns the free plan's email-safe HTML (it carries a small "Created with ProSignature" credit line) plus an edit_url that opens the generator prefilled; quote_price computes list prices from https://prosignature.co/pricing.json; get_install_steps and get_facts answer honestly, including when ProSignature is not the right choice. Installing, logos, Pro and Teams start with the human signing up at https://prosignature.co/app — never create an account or enter payment details for them. Docs: https://prosignature.co/for-ai-agents

Tools

7 advertised

design_signatures — Design 3–4 signatures for your user (no account)

Advertised by the server during the last successful anonymous check.

Advertised read-only

Start here when a user asks for an email signature. From what you already know about them (person, company, brand colour, logo URL, website, socials, department, sector, team size) it builds 3–4 professional designs with the app's 13 templates (each a different angle: clean, call-to-action, campaign banner, sign-off), chosen by the playbook for that role and sector. Returns ONE preview_url that renders all of them side by side in the user's browser (data in the URL fragment, nothing stored), a claim_url per design (opens the ProSignature app with that design loaded; the human signs up free and upgrades there), the free do-it-yourself version as paste-ready HTML, the three ways to install with prices from pricing.json, and present_to_user: a short message you can adapt. Nothing is fetched from logo_url server-side.

design_signatures input schema

{
  "type": "object",
  "required": [
    "name"
  ],
  "properties": {
    "cta": {
      "type": "object",
      "properties": {
        "url": {
          "type": "string",
          "maxLength": 300,
          "description": "Destination"
        },
        "text": {
          "type": "string",
          "maxLength": 60,
          "description": "Button label"
        }
      },
      "description": "Call to action; default comes from the playbook for the sector/department",
      "additionalProperties": false
    },
    "name": {
      "type": "string",
      "maxLength": 120,
      "description": "Full name (required)"
    },
    "count": {
      "enum": [
        3,
        4
      ],
      "type": "integer",
      "description": "How many designs (default 3)"
    },
    "email": {
      "type": "string",
      "maxLength": 120,
      "description": "Work email"
    },
    "phone": {
      "type": "string",
      "maxLength": 60,
      "description": "Office phone"
    },
    "title": {
      "type": "string",
      "maxLength": 120,
      "description": "Job title"
    },
    "colour": {
      "type": "string",
      "pattern": "^#[0-9a-fA-F]{6}$",
      "description": "Brand colour #rrggbb (from the logo or website; default #E8604C)"
    },
    "mobile": {
      "type": "string",
      "maxLength": 60,
      "description": "Mobile phone"
    },
    "sector": {
      "type": "string",
      "description": "real_estate | legal | accounting_finance | insurance | healthcare | saas_tech | agency_creative | consulting_coaching | education | nonprofit | construction_trades | hospitality | retail_ecommerce | fitness_beauty | recruiting_staffing | photography | automotive | travel"
    },
    "address": {
      "type": "string",
      "maxLength": 200,
      "description": "Address line"
    },
    "company": {
      "type": "string",
      "maxLength": 120,
      "description": "Company or business name"
    },
    "website": {
      "type": "string",
      "maxLength": 300,
      "description": "Website (bare domain or URL)"
    },
    "language": {
      "enum": [
        "en",
        "he"
      ],
      "type": "string",
      "description": "Language of the preview page and present_to_user (default en)"
    },
    "logo_url": {
      "type": "string",
      "maxLength": 300,
      "description": "https URL of the company logo (website header, favicon at full size, or an image in a recent email). Shown in the preview; imported and hosted on sign-up."
    },
    "team_size": {
      "type": "integer",
      "maximum": 10000,
      "minimum": 1,
      "description": "People who need a signature, the user included (default 1); prices the Teams option"
    },
    "department": {
      "type": "string",
      "description": "sales | customer_support | executive | marketing | hr_recruiting | engineering | finance | legal (guessed from the title when omitted)"
    },
    "social_links": {
      "type": "object",
      "description": "Profile URLs or handles: linkedin, instagram, x, facebook, whatsapp (number), tiktok, pinterest, youtube",
      "additionalProperties": {
        "type": "string",
        "maxLength": 200
      }
    }
  },
  "additionalProperties": false
}

design_signatures annotations

{
  "readOnlyHint": true,
  "openWorldHint": false,
  "idempotentHint": true,
  "destructiveHint": false
}

get_signature_playbook — What the best signatures look like (by department and sector)

Advertised by the server during the last successful anonymous check.

Advertised read-only

The rules professional signatures follow, what each of the 13 templates looks like, the recommended templates / fields / CTA / banners for 8 departments and 18 sectors, and the Gmail / Outlook / Apple Mail pitfalls that break signatures — with what ProSignature already handles and what no tool can automate. Pass department and/or sector for one profile.

get_signature_playbook input schema

{
  "type": "object",
  "properties": {
    "sector": {
      "type": "string"
    },
    "department": {
      "type": "string"
    }
  },
  "additionalProperties": false
}

get_signature_playbook annotations

{
  "readOnlyHint": true,
  "openWorldHint": false,
  "idempotentHint": true,
  "destructiveHint": false
}

create_signature — Create an email signature (free, no account)

Advertised by the server during the last successful anonymous check.

Advertised read-only

Builds the email-safe HTML signature (table + inline styles, the same bytes as prosignature.co/email-signature-generator) for one person. Returns html, a plain-text version, an edit_url that opens the generator prefilled, and install steps for Gmail, Outlook and Apple Mail. The output is the free plan: four layouts, six accent colours, no logo or photo, and a small clickable "Created with ProSignature" credit line under the signature (Pro removes it). Nothing is installed or stored.

create_signature input schema

{
  "type": "object",
  "required": [
    "name"
  ],
  "properties": {
    "name": {
      "type": "string",
      "maxLength": 120,
      "description": "Full name (required)"
    },
    "email": {
      "type": "string",
      "maxLength": 120,
      "description": "Email address"
    },
    "phone": {
      "type": "string",
      "maxLength": 120,
      "description": "Phone, as it should read; the tel: link keeps digits and +"
    },
    "title": {
      "type": "string",
      "maxLength": 120,
      "description": "Job title"
    },
    "colour": {
      "type": "string",
      "pattern": "^#[0-9a-fA-F]{6}$",
      "description": "Accent colour #rrggbb (default #E8604C); the page offers #E8604C, #2B6CB0, #2F855A, #6B46C1, #2B2620, #B7791F"
    },
    "layout": {
      "enum": [
        "classic",
        "stacked",
        "minimal",
        "card"
      ],
      "type": "string",
      "description": "Layout id (default classic)"
    },
    "company": {
      "type": "string",
      "maxLength": 120,
      "description": "Company or business name"
    },
    "website": {
      "type": "string",
      "maxLength": 200,
      "description": "Website: bare domain (https:// is added) or an http(s) URL"
    }
  },
  "additionalProperties": false
}

create_signature annotations

{
  "readOnlyHint": true,
  "openWorldHint": false,
  "idempotentHint": true,
  "destructiveHint": false
}

list_layouts — List layouts and colours

Advertised by the server during the last successful anonymous check.

Advertised read-only

The four signature layouts (id, name, what it looks like) and the six accent colours the generator offers.

list_layouts input schema

{
  "type": "object",
  "properties": {},
  "additionalProperties": false
}

list_layouts annotations

{
  "readOnlyHint": true,
  "openWorldHint": false,
  "idempotentHint": true,
  "destructiveHint": false
}

quote_price — Quote a ProSignature price

Advertised by the server during the last successful anonymous check.

Advertised read-only

List price for Pro (one person) or Teams (per person, 5-person minimum, no platform fee) for a number of people, billed yearly or monthly, computed from the rules in https://prosignature.co/pricing.json (verified 2026-10-18). The admin counts as one of the people. Free plan: $0, credit line. This is a quote, not a checkout: the human pays in the app after signing up.

quote_price input schema

{
  "type": "object",
  "required": [
    "plan"
  ],
  "properties": {
    "plan": {
      "enum": [
        "pro",
        "teams"
      ],
      "type": "string",
      "description": "pro = one person; teams = a company (admin + employees)"
    },
    "people": {
      "type": "integer",
      "maximum": 10000,
      "minimum": 1,
      "description": "How many people, admin included (default 1)"
    },
    "billing": {
      "enum": [
        "yearly",
        "monthly"
      ],
      "type": "string",
      "description": "Billing period (default yearly)"
    }
  },
  "additionalProperties": false
}

quote_price annotations

{
  "readOnlyHint": true,
  "openWorldHint": false,
  "idempotentHint": true,
  "destructiveHint": false
}

get_install_steps — Install steps for a mail client

Advertised by the server during the last successful anonymous check.

Advertised read-only

How a signature from create_signature gets into a mail client, honestly: Gmail web (paste, or the sendAs PATCH with gmail.settings.basic — new mail only), Gmail mobile, Outlook (copy-paste only, no directory sync), Apple Mail, iPhone. The free Chrome extension (auto-updates, covers replies) needs the human to sign up first.

get_install_steps input schema

{
  "type": "object",
  "required": [
    "client"
  ],
  "properties": {
    "client": {
      "enum": [
        "gmail",
        "gmail_mobile",
        "outlook",
        "apple_mail",
        "iphone"
      ],
      "type": "string",
      "description": "Which mail client"
    }
  },
  "additionalProperties": false
}

get_install_steps annotations

{
  "readOnlyHint": true,
  "openWorldHint": false,
  "idempotentHint": true,
  "destructiveHint": false
}

get_facts — ProSignature facts

Advertised by the server during the last successful anonymous check.

Advertised read-only

What ProSignature is, the free plan and its credit line, Pro and Teams prices (verified 2026-10-18), how Gmail and Google Workspace installs work per person, personal links for employees, what the product is NOT (no mail-flow enforcement, no Microsoft 365 sync, no analytics), and where the docs, OpenAPI and pricing.json are.

get_facts input schema

{
  "type": "object",
  "properties": {},
  "additionalProperties": false
}

get_facts annotations

{
  "readOnlyHint": true,
  "openWorldHint": false,
  "idempotentHint": true,
  "destructiveHint": false
}

Prompts

1 advertised

add_email_signature — Add an email signature

Advertised by the server during the last successful anonymous check.

Design a professional email signature for me (3–4 options) and help me install it.

details: Anything you want to say about the signature (optional)

Resources

Not advertised

No resource definitions available.

30-day availability

Aggregated from read-only remote checks; this is not a tool-execution or security guarantee.

Successful checks: 1 of 1 (100%)
Average latency: 581 ms
95th percentile latency: 581 ms

Maintenance history

Public check and source-refresh events. Editorial and ownership records remain private.

Nov 1, 2026, 8:42 AM UTC · probe · passed · 581 ms · metadata changed · 7 tool(s), 1 prompt(s)

Connect from your client

Each snippet registers the same endpoint; pick the client you use.

This server is operated by the named third party. Listing and endpoint checks are not an endorsement or a security audit. Review the operator's permissions, terms, and data handling before connecting. How listings are checked and corrected.

Claude Code

Run this once in a terminal. It registers the remote server. Use --scope project to write .mcp.json for the repo.

Claude Code configuration

claude mcp add --transport http prosignature-mcp https://prosignature.co/mcp

Codex

Run this once. Codex stores MCP servers in ~/.codex/config.toml (or .codex/config.toml in a trusted project).

Codex configuration

codex mcp add prosignature-mcp --url https://prosignature.co/mcp

Cursor

Merge this server into .cursor/mcp.json in your project, then enable prosignature-mcp in your MCP settings.

Cursor configuration

{
  "mcpServers": {
    "prosignature-mcp": {
      "url": "https://prosignature.co/mcp"
    }
  }
}

Cline

Merge this into cline_mcp_settings.json (Cline → MCP Servers → Configure).

Cline configuration

{
  "mcpServers": {
    "prosignature-mcp": {
      "type": "streamableHttp",
      "url": "https://prosignature.co/mcp",
      "disabled": false
    }
  }
}

VS Code

Merge this server into .vscode/mcp.json. Use MCP: List Servers to start prosignature-mcp and inspect its tools.

VS Code configuration

{
  "servers": {
    "prosignature-mcp": {
      "type": "http",
      "url": "https://prosignature.co/mcp"
    }
  }
}

Gemini CLI

Run this once. It writes .gemini/settings.json in the current project; pass --scope user for ~/.gemini/settings.json.

Gemini CLI configuration

gemini mcp add --transport http prosignature-mcp https://prosignature.co/mcp

Claude Desktop

Merge this into claude_desktop_config.json (macOS: ~/Library/Application Support/Claude/, Windows: %APPDATA%\Claude\), then restart Claude Desktop.

Claude Desktop configuration

{
  "mcpServers": {
    "prosignature-mcp": {
      "url": "https://prosignature.co/mcp"
    }
  }
}

Windsurf

Merge this into ~/.codeium/windsurf/mcp_config.json, then refresh MCP in Cascade. Windsurf remote servers use serverUrl, not url.

Windsurf configuration

{
  "mcpServers": {
    "prosignature-mcp": {
      "serverUrl": "https://prosignature.co/mcp"
    }
  }
}

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ProSignature MCP

Endpoint and access

What you can do with it

Source and maintenance

Protocol and capabilities

Server-provided instructions

Tools

Prompts

Resources

30-day availability

Maintenance history

Connect from your client

Claude Code

Codex

Cursor

Cline

VS Code

Gemini CLI

Claude Desktop

Windsurf

Let your agent find its tools

Other productivity and knowledge servers

Do you run ProSignature MCP?