MCP server + Claude Desktop Extension for AddSign — agents send documents for e-signature, track status, and download signed PDFs
Setup
Choose your client, copy the config, then fill in any required environment variables.
Local
claude mcp add addsign --env ADDSIGN_API_KEY='<ADDSIGN_API_KEY>' -- npx -y addsign-mcp~/.codex/config.toml
[mcp_servers.addsign]
command = "npx"
args = ["-y", "addsign-mcp"]
env = { ADDSIGN_API_KEY = "<ADDSIGN_API_KEY>" }
# codex mcp add addsign --env ADDSIGN_API_KEY='<ADDSIGN_API_KEY>' -- npx -y addsign-mcp~/.cursor/mcp.json
{
"mcpServers": {
"addsign": {
"command": "npx",
"args": [
"-y",
"addsign-mcp"
],
"env": {
"ADDSIGN_API_KEY": "<ADDSIGN_API_KEY>"
}
}
}
}.vscode/mcp.json
{
"servers": {
"addsign": {
"type": "stdio",
"command": "npx",
"args": [
"-y",
"addsign-mcp"
],
"env": {
"ADDSIGN_API_KEY": "<ADDSIGN_API_KEY>"
}
}
}
}~/.gemini/settings.json
{
"mcpServers": {
"addsign": {
"command": "npx",
"args": [
"-y",
"addsign-mcp"
],
"env": {
"ADDSIGN_API_KEY": "<ADDSIGN_API_KEY>"
}
}
}
}claude_desktop_config.json
{
"mcpServers": {
"addsign": {
"command": "npx",
"args": [
"-y",
"addsign-mcp"
],
"env": {
"ADDSIGN_API_KEY": "<ADDSIGN_API_KEY>"
}
}
}
}.trae/mcp.json
{
"mcpServers": {
"addsign": {
"command": "npx",
"args": [
"-y",
"addsign-mcp"
],
"env": {
"ADDSIGN_API_KEY": "<ADDSIGN_API_KEY>"
}
}
}
}Remote
claude mcp add --transport http addsign https://addsign.io/api/mcp~/.codex/config.toml
[mcp_servers.addsign]
url = "https://addsign.io/api/mcp"
# codex mcp add addsign --url https://addsign.io/api/mcp~/.cursor/mcp.json
{
"mcpServers": {
"addsign": {
"url": "https://addsign.io/api/mcp"
}
}
}.vscode/mcp.json
{
"servers": {
"addsign": {
"type": "http",
"url": "https://addsign.io/api/mcp"
}
}
}~/.gemini/settings.json
{
"mcpServers": {
"addsign": {
"httpUrl": "https://addsign.io/api/mcp"
}
}
}claude_desktop_config.json · Customize › Connectors › Add custom connector
{
"mcpServers": {
"addsign": {
"command": "npx",
"args": [
"-y",
"mcp-remote",
"https://addsign.io/api/mcp"
]
}
}
}.trae/mcp.json
{
"mcpServers": {
"addsign": {
"url": "https://addsign.io/api/mcp"
}
}
}Environment variables
ADDSIGN_API_KEY
Replace the placeholders with your own credentials and keep them out of version control.