ProSignature email signatures

co.prosignaturePublished by prosignature.coOfficial publisherv1.4.0Updated Nov 6, 2026

Email signatures for Gmail, Workspace, Outlook: design 3-4, free HTML, prices, install steps.

VerifiedStreamable HTTPWeb executableProductivity & WorkflowBusiness & CommerceMedia & Design

Overview

AI-generated overview

ProSignature designs email signatures for Gmail, Workspace, Outlook and Apple Mail, builds free email-safe HTML, quotes prices and gives install steps.

What you can do
  • Design 3–4 signature options on one preview link, based on the person's role, sector and brand details
  • Generate free email-safe HTML signatures with a plain-text version and a prefilled edit link
  • Look up signature rules, templates, recommended fields and mail-client pitfalls
  • List available layouts and accent colours
  • Quote Pro and Teams list prices for a given headcount and billing period
  • Explain install steps per mail client and state what ProSignature is and does not do
When to use it
Use it when someone wants a professional or branded email signature, an HTML signature with logo, photo or social icons, a consistent signature for a whole team, help with a signature that is not displaying, or ProSignature pricing and install guidance.
Requirements
A remote Streamable HTTP endpoint; nothing to install locally. The public server needs no account or API key. The separate account server requires OAuth 2.1 sign-in with a ProSignature account.
Before you install
The free HTML carries a small credit line. The tools themselves change nothing, but the account server can save signatures, set banners, add or remove team members and return a checkout link; it never pays or sends email. Sign-up and payment are done by the human, not the assistant. Account access lasts up to 90 days and can be revoked in settings.

Installation

In SourceWeft

  1. Open ProSignature email signatures in the dashboard and add it to a workspace.
  2. Enable the server for the chats that should use its tools.

Web executable via Streamable HTTP. Remote servers run from the web runtime once configured in a workspace.

Use with an agent

Paste this prompt into Claude Code, Codex, Cursor or another agent — or into SourceWeft chat. The agent reads this server's install guide, shows you its publisher, endpoint and sign-in, and adds it to your client once you agree. Keys never go into a command.

Read https://sourceweft.com/mcp/co.prosignature%2Femail-signatures/install.md and connect the MCP server it describes to my client. Before changing any config, show me its publisher, endpoint and sign-in method and wait for my OK. Never put an API key in a command or in a file I would commit; ask me where it should come from.

Read the install guide the agent follows

Other MCP clients

Add this to your client's mcpServers config.

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

README

ProSignature — email signature skill + MCP servers

Connect any AI assistant to ProSignature: professional email signatures for Gmail and Google Workspace (Outlook, Microsoft 365 and Apple Mail by copy-paste), for one person or a whole team. Ask your assistant for an email signature and it designs 3–4 options, builds email-safe HTML, quotes Pro and Teams prices and gives install steps — without an account. With sign-in it works on your own ProSignature account.

This repository holds the skill (skills/email-signature/SKILL.md, the Agent Skills format read by Claude Code, Codex, Cursor, Gemini CLI, Copilot and others), the plugin manifests (Claude Code / claude.ai, Cursor, Gemini CLI, Perplexity) and the MCP server configs.

Two remote servers (Streamable HTTP), no software to install:

ServerURLSign-inWhat it does
Publichttps://prosignature.co/mcpnonedesign 3–4 signatures, build email-safe HTML, quote prices, install steps, facts
Accounthttps://prosignature.co/mcp/accountOAuth 2.1 (your ProSignature account)read and save your signature, banner, team and rollout, checkout link

Official registry name: co.prosignature/email-signatures · Docs: https://prosignature.co/for-ai-agents · Guide: https://prosignature.co/connect-ai

Install the skill (any agent that reads SKILL.md)

bash
npx skills add porshianboti-star/prosignature-mcp

Claude Code plugin (skill + both MCP servers)

bash
claude plugin marketplace add porshianboti-star/prosignature-mcpclaude plugin install prosignature@prosignature

Perplexity — Plugins → Add custom → upload this repository (plugin.json + SKILL.md + mcp.json are read as-is).

Install the MCP servers only

Claude Code

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

claude.ai / Claude desktop — Customize → Connectors → Add custom connector → paste https://prosignature.co/mcp/account → Add → Connect → Allow.

ChatGPT — chatgpt.com/plugins → + → Add custom MCP server → paste the URL → Create.

Cursor — Add public server · Add account server

VS Code — Install public server · Install account server

Gemini CLI / Antigravity

bash
gemini extensions install https://github.com/porshianboti-star/prosignature-mcp

Any other MCP client — use mcp.json from this repo.

What the account server can and cannot do

It designs and saves your signature, sets the banner, adds and removes people on your team and reads their install links and rollout status, and returns a checkout link. It never pays, creates accounts or sends email by itself. Access lasts up to 90 days and can be revoked under Settings in the app.

What the skill tells an assistant

Gather what it already knows about the person, call design_signatures (3–4 designs on one preview link), present the three honest ways to install (free do-it-yourself paste with a small "Created with ProSignature" credit line · Pro · Teams) with live prices from pricing.json, give install steps per mail client, and say plainly when ProSignature is not the right fit (server-side Microsoft 365 signatures, Outlook directory sync, analytics). It never creates accounts, pays or sends email for the person.

Links for your own site

Cursor deeplink (public): cursor://anysphere.cursor-deeplink/mcp/install?name=prosignature&config=eyJ1cmwiOiJodHRwczovL3Byb3NpZ25hdHVyZS5jby9tY3AifQ== VS Code: vscode:mcp/install?%7B%22name%22%3A%22prosignature%22%2C%22type%22%3A%22http%22%2C%22url%22%3A%22https%3A//prosignature.co/mcp%22%7D

Source: README.md at commit 8058f84

Tools

7

design_signatures

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

Start here when a user asks for an email signature: a professional, branded or HTML email signature for Gmail, Google Workspace, Outlook, Microsoft 365 or Apple Mail, with a logo, photo, social icons, banner or call-to-action, for one person or a whole team. 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.

Parametersctanamerequiredcountemailphonetitlecolourmobilesectoraddresscompanywebsite+5 more

get_signature_playbook

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

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 it does not automate (Outlook / Microsoft 365, Apple Mail and iPhone are copy-paste). Pass department and/or sector for one profile.

Parameterssectordepartment

create_signature

Create an email signature (free, no account)

Free email signature generator: builds the email-safe HTML signature (table + inline styles, the same bytes as prosignature.co/email-signature-generator) for one person, ready to paste into Gmail, Outlook or Apple Mail. 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.

Parametersnamerequiredemailphonetitlecolourlayoutcompanywebsite

list_layouts

List layouts and colours

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

Takes no parameters.

quote_price

Quote a ProSignature price

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.

Parametersplanrequiredpeoplebilling

get_install_steps

Install steps for a mail client

How to add, change or install an email signature in 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, and google_workspace (the one-time super-admin approval: client ID, scopes, admin console path). The free Chrome extension (auto-updates, covers replies) needs the human to sign up first.

Parametersclientrequired

get_facts

ProSignature facts

What ProSignature is (email signatures for Gmail and Google Workspace teams; Outlook, Microsoft 365 and Apple Mail by copy-paste), the free plan and its credit line, Pro and Teams prices (verified 2026-10-18), how Gmail and Google Workspace installs work (per person, or the one-approval Workspace directory push), 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.

Takes no parameters.

Version history

3
  1. v1.4.0LatestNov 6, 2026
  2. v1.2.0Oct 25, 2026
  3. v1.0.0Oct 20, 2026

Score

100% of the applicable checks met

How complete this listing is, computed from the registry entry, the endpoint and public sources. Not a rating of the server and not a statement that it is safe or working today: reachability is a dated check, and no installs or reviews go into the score.

  • Reached in the last 30 daysRequired25 pts
  • Auth declaredRequired10 pts
  • Tools listedRequired15 pts
  • DescriptionRequired15 pts
  • Logo10 pts
  • Documentation15 pts
  • License10 pts