APISign

Name: APISign
Author: wes

by wesversion 1.0.0i★ –iRuns in the cloud

Registry nameio.apisign/apisign

Install

Overview

Description from the maker (original English)

Send documents for legally binding e-signature and manage the reusable templates behind them.

PopNx MCP’s three pillars

These three are never merged into one score: opinions, measurements and popularity are different things.

User voiceiNo reviews yetReviews open together with accounts in a later step
Our basic checksi1 of 1 passedChecked from public information; code not scanned yet
UsageiNot measured yet★ –

What you can do with it

We have not written a plain-language summary for this one yet. Below are the facts we read from the registry.

Connection: Runs in the cloud
Transport: Streamable HTTP
Category: Other
You need to fill in: x-api-key

Install

Pick the AI app you use, then copy the settings.

Before you install

Basic checks: 1 of 1 passed
Runs on the maker’s server: what you ask it goes through their server.
You fill in yourself: x-api-key

Values marked secret are keys to your account. Never share them or paste them into a chat.

You need

Runs in the cloudNothing to install; it connects over the internet

Which app do you use?

ClaudeClaude CodeCursorVS CodeChatGPT

Pick your app above. We remember it, so next time the button says “Install in …”.

This address needs a key in a request header, which the add-connector menu cannot set. Use Claude Code, Cursor or VS Code instead.

Run this in your terminal

claude mcp add --transport http apisign https://apisign.io/mcp --header 'x-api-key: your-value'

Fill in the empty values before running it.

Open in Cursor

Or copy the settings yourself

Paste into .cursor/mcp.json in your project, or ~/.cursor/mcp.json

{
  "mcpServers": {
    "apisign": {
      "url": "https://apisign.io/mcp",
      "headers": {
        "x-api-key": "your-value"
      }
    }
  }
}

Your browser asks to open the app, then the app shows the settings and asks you to confirm. Key values are left empty for you to fill in.

Open in VS Code

Or copy the settings yourself

Paste into .vscode/mcp.json in your project

{
  "servers": {
    "apisign": {
      "type": "http",
      "url": "https://apisign.io/mcp",
      "headers": {
        "x-api-key": "your-value"
      }
    }
  }
}

Your browser asks to open the app, then the app shows the settings and asks you to confirm. Key values are left empty for you to fill in.

This address needs a key in a request header, which the add-connector menu cannot set. Use Claude Code, Cursor or VS Code instead.

Your choice stays on this device in a cookie; no account needed.

Values you fill in

x-api-key secret required HTTP header
APISign API key, created under Dashboard > Account > API Keys. A Read Only key exposes only the lookup tools; a Read & Write key exposes all of them.

These settings are generated from the maker’s registry entry. If the README says otherwise, follow the README.

What it can do

We have not read this server’s tool list yet; we check endpoints in rotation.

Basic checksi

We check information anyone can see; we have not read the code. Checks that do not apply are left out of the count. · Checked Nov 6, 2026

✓ Pass
Maker matches the repo
The registry name was verified against the domain apisign.io (the registry checks domain ownership)
… Not checked yet
Still maintained
We have not read this repo from GitHub yet
… Not checked yet
Has a licence
We have not read this repo from GitHub yet
… Not checked yet
Endpoint responds
Not checked yet; we check endpoints in rotation
… Not checked yet
Sign-in with OAuth
Not checked yet; we check endpoints in rotation
… Not checked yet
No hidden instructions in tool descriptions
Not checked yet; we read the tool list when we check the endpoint

Compared with others in Otheri

More stars than 0% of the other 32403 servers in this category
Published to the registry more recently than 32% of the other 32403 servers in this category
Basic checks equal to or better than 100% of the other 32403 servers in this category

Compared with every active server in this category in the registry. Stars count only when the publisher owns the repo.

Common questions

Is APISign safe?

It passed 1 of 1 applicable basic checks. We have not read the code. Before adding a key or token, see what access the server asks for and use a key with only the permissions you need.

What keys or codes does it need?

You need to fill in: x-api-key

Does it run on my computer or in the cloud?

It runs in the maker’s cloud. Connect over the internet with nothing to install, but what you send passes through the maker’s servers.

Is it still maintained?

The GitHub repo last changed –, and the latest version (1.0.0) reached the registry 2 months ago.

Which apps can use it?

Apps that support MCP, such as Claude Desktop, Claude Code, Cursor and VS Code. It connects by URL, so apps that accept remote MCP servers work too, such as ChatGPT in developer mode.

What can I use instead?

In the same category: Spec Driven Development, Remote Desktop Commander, LickityClick

Alternatives

Servers in the same category from other makers, sorted by stars.

Reading a card:★ GitHub starsiThree pillars: reviews · checks · usageiUpdated = latest version published to the registryi

Spec Driven Development

by formulahendry

MCP Server that facilitates spec-driven development workflows, not just Vibe Coding.

Runs on your computer★ 440MITUpdated 14 months ago

Install

Remote Desktop Commander

by desktop-commander

Remote Desktop Commander: use files, terminal and processes on your own computers from any AI app.

Runs in the cloud★ 211Updated yesterday

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LickityClick

by lickity.click

Create, edit and track LickityClick short links, campaigns and click stats from your AI assistant.

Computer or cloudUpdated today

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README from the maker

Open the README

Copied from the maker’s repo as written. PopNx MCP has not reviewed or endorsed it. HTML, images and scripts are removed. Links lead off this site.

APISign MCP Server

Send documents out for legally binding e-signature, and manage the templates they come from, directly from an AI agent.

APISign runs a hosted Model Context Protocol server at `https://apisign.io/mcp`. There is nothing to install and nothing to self-host — point your client at the URL, give it an API key, and your agent can draft a contract from a template, fill its variables, send it to signers, and watch the signatures come in.

This repository holds the connection metadata and client configuration. The service itself lives at apisign.io.

Connect

1. Get an API key. Sign in at apisign.io, then go to Account → API Keys and create one. Copy it — it is shown once.

Pick the permission deliberately:

Permission	What the agent can do
Read Only	List and read templates and contracts. Nothing else.
Read & Write	Everything, including sending contracts, which charges your balance.

A Read Only key does not merely refuse the write tools — they are left out of the tools/list response entirely, so the agent never learns they exist. If your agent only needs to look things up, use one.

2. Add the server. The quickest route, which works for Claude, Cursor, ChatGPT and most other clients:

npx add-mcp https://apisign.io/mcp --header '{"x-api-key": "your-api-key-here"}'

Or configure it by hand:

"mcpServers": { "apisign": { "url": "https://apisign.io/mcp", "headers": { "x-api-key": "your-api-key-here" } } } }

Client	Config file
Claude Desktop (macOS)	`~/Library/Application Support/Claude/claude_desktop_config.json`
Claude Desktop (Windows)	`%APPDATA%\Claude\claude_desktop_config.json`
Cursor	`~/.cursor/mcp.json`, or `%USERPROFILE%\.cursor\mcp.json`
ChatGPT	Settings → Features → MCP servers → Add MCP server

Transport is Streamable HTTP. Authentication is the x-api-key header.

Tools

Twelve tools, in two families. Everything is scoped to the organization the API key belongs to.

Templates

Tool	Access	What it does
`template_list`	read	List all templates in the organization.
`template_get`	read	Fetch one template by ID, with its content and field definitions.
`template_create`	write	Create a blank template from a name and optional Markdown.
`template_update`	write	Change a template's name, content, or fields.
`template_upload`	write	Convert a base64-encoded DOCX/DOC into a template.
`template_archive`	write	Soft-delete a template.

Contracts

Tool	Access	What it does
`contract_list`	read	List contracts, optionally filtered by status.
`contract_get`	read	Fetch one contract, including every signer and their status.
`contract_create`	write	Create a contract from a template or from raw content, with signers.
`contract_update`	write	Edit a draft contract's details or signers. Drafts only.
`contract_send`	write	Send a contract for signing. Charges your balance and emails the signers.
`contract_cancel`	write	Cancel a draft or sent contract.

Templates are Markdown with Handlebars-style variables — {{client_name}}, {{effective_date}} — that contract_create fills in. Signature placeholders work the same way: a one-signer document needs a {{signature}}, and a multi-signer document gives each party their own, assigned through signer_fields.

A worked example

Draft an NDA for Acme Corp from our standard mutual NDA template, effective

the first of next month, and send it to legal@acme.example and to me.

The agent calls template_list to find the template, template_get to read its variables, contract_create to fill them and attach both signers, then contract_send. You get back a contract ID you can follow with contract_get.

Discovery metadata

File	Consumed by
`server.json`	The official MCP registry — published as `io.apisign/apisign`.
`plugins/apisign/mcp.json`	Cursor and other Agent Plugins clients.
`glama.json`	Glama's indexer.

The server also serves its own card, without authentication, so directories can describe it without an API key:

https://apisign.io/.well-known/mcp.json
https://apisign.io/.well-known/mcp/server-card.json

Docs and support

MCP server documentation
API reference
Pricing — contracts are billed per document sent

Issues with the MCP integration are welcome here. Questions about your account belong at apisign.io.

License

MIT

APISign

Overview

PopNx MCP’s three pillars

What you can do with it

Install

Before you install

Values you fill in

What it can do

Basic checksi

Maker matches the repo

Still maintained

Has a licence

Endpoint responds

Sign-in with OAuth

No hidden instructions in tool descriptions

Compared with others in Otheri

Common questions

Alternatives

Spec Driven Development

Remote Desktop Commander

LickityClick

README from the maker

APISign MCP Server

Connect

Tools

Templates

Contracts

A worked example

Discovery metadata

Docs and support

License