Signwell MCP server for AI agents and assistants

Securely connect your AI agents and chatbots (Claude, ChatGPT, Cursor, etc) with Signwell MCP or direct API to send signature requests, track document status, fetch signed contracts, and automate reminders through natural language.

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Api Key

SignWell is an electronic signature platform for creating and sending legally binding documents. It streamlines contract signing and automates workflows for faster turnaround.

12 Tools

Try Signwell now

Type what you want done — sign in and watch it run live in the Tool Router playground.

TOOL ROUTER PLAYGROUND
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TOOLS

Supported Tools

Every Signwell action and event your agent gets out of the box.

Create Document

Tool to create and optionally send a new document for signing.

Create Document from Template

Tool to create and optionally send a new document for signing from a template.

Create Webhook

Tool to register a webhook callback URL.

Delete Document

Tool to delete a document (and cancel signing if in progress).

Delete Webhook

Deletes a registered webhook by its ID.

Get Credentials

Retrieve account information for the authenticated API key.

Get Document

Tool to return a document and all associated document data.

List Bulk Sends

Tool to list all Bulk Sends.

List Webhooks

Tool to list all registered webhooks.

Send Reminder

Tool to send a reminder email to recipients that have not signed yet.

Update and Send Document

Tool to update a draft document and send it to recipients for signing.

Update Template

Tool to update an existing template in SignWell.

SETUP GUIDE

Connect Signwell MCP Tool with your Agent

1

Install Composio

typescript
npm install @composio/core ai @ai-sdk/mcp @ai-sdk/openai
Install the Composio SDK and your agent framework
2

Create a session with MCP enabled

typescript
import { Composio } from "@composio/core";

const composio = new Composio();
const { mcp } = await composio.create("your-user-id", {
  toolkits: ["signwell"],
  mcp: true,
});
Create a session scoped to Signwell and read its MCP URL and headers
3

Connect your agent to the MCP server

typescript
import { createMCPClient } from "@ai-sdk/mcp";
import { openai } from "@ai-sdk/openai";
import { generateText, stepCountIs } from "ai";

const client = await createMCPClient({
  transport: { type: "http", url: mcp.url, headers: mcp.headers },
});

const { text } = await generateText({
  model: openai("gpt-5.6-sol"),
  tools: await client.tools(),
  prompt: "Send a document for signature to two recipients",
  stopWhen: stepCountIs(10),
});

console.log(text);
await client.close();
Pass the session's MCP URL and headers to your agent and run a Signwell request
SETUP GUIDE

Connect Signwell API Tool with your Agent

1

Install Composio

typescript
npm install @composio/core @composio/openai openai
Install the Composio SDK, the OpenAI provider, and the OpenAI SDK
2

Create a Composio session

typescript
import OpenAI from "openai";
import { Composio } from "@composio/core";
import { OpenAIResponsesProvider } from "@composio/openai";

const composio = new Composio({ provider: new OpenAIResponsesProvider() });
const client = new OpenAI();

const session = await composio.create("your-user-id", { toolkits: ["signwell"] });
const tools = await session.tools();
Initialize Composio with the OpenAI Responses provider and create a session scoped to Signwell
3

Run Signwell tools with your agent

typescript
let response = await client.responses.create({
  model: "gpt-5.6-sol",
  tools,
  input: [{ role: "user", content: "Send a document for signature to two recipients" }],
});

while (response.output.some((o) => o.type === "function_call")) {
  const outputs = await composio.provider.handleToolCalls(session, response.output);
  response = await client.responses.create({
    model: "gpt-5.6-sol",
    tools,
    previous_response_id: response.id,
    input: outputs,
  });
}

console.log(response.output_text);
Send a request, execute the Signwell tool calls through the session, and print the final answer

Why Use Composio?

AI Native Signwell Integration

  • Supports both Signwell MCP and direct API based integrations
  • Structured, LLM-friendly schemas for reliable tool execution
  • Rich coverage for reading, sending, and managing your Signwell documents

Managed Auth

  • Built-in API key management with secure storage and rotation
  • Central place to manage, scope, and revoke Signwell access
  • Per user and per environment credentials instead of hard-coded keys

Agent Optimized Design

  • Tools are tuned using real error and success rates to improve reliability over time
  • Comprehensive execution logs so you always know what ran, when, and on whose behalf

Enterprise Grade Security

  • Fine-grained RBAC so you control which agents and users can access Signwell
  • Scoped, least privilege access to Signwell resources
  • Full audit trail of agent actions to support review and compliance

Rolling this out across your team?

Give your team centralized access control across every framework with Composio’s MCP Gateway.

EXPLORE MCP GATEWAY
FAQ

Frequently asked questions

Yes, Signwell requires you to configure your own API key credentials. Once set up, Composio handles secure credential storage and API request handling for you.

Yes! Composio's Tool Router enables agents to use multiple toolkits. Learn more.

Yes. Composio is SOC 2 Type II compliant and is built to keep your Signwell connection and credentials secure. OAuth tokens and API keys are encrypted, and sensitive customer data is protected at rest and in transit.

Composio also undergoes independent security testing and continuously monitors its systems for security threats. You can review the latest reports and policies in the Composio Trust Center.

Composio maintains and updates all toolkit integrations automatically, so your agents always work with the latest API versions.

Create the key in your Signwell account settings, then paste it once on Composio's connection page. Composio stores it encrypted and uses it only for the Signwell actions your agent runs. Nobody else in your workspace can read it, and you can revoke it inside Signwell at any time.

When you connect a Signwell account through Composio, every action runs under that account, so anything the agent creates, sends, or changes shows up in Signwell as done by you. Keep an approval step in your prompt for actions with side effects, such as sending or deleting, and have the agent draft first.

Whatever the credentials you connect allow inside Signwell. If Signwell lets you scope a key to specific permissions, create a scoped one so the agent can only do what you intend. You can revoke the key inside Signwell at any time.

Yes. Composio supports multiple connected accounts for the same app, and that works in Claude, ChatGPT, or any other assistant you connect through Composio. Give each Signwell connection a name such as work or personal, and the assistant uses the one you mention in the request. Each account keeps its own credentials and nothing is merged.

The connection stops working the moment Signwell rejects the old key. Create a new key in Signwell and reconnect the account from the Composio dashboard or by asking your agent to reconnect Signwell. Nothing else changes.

Composio's free Hobby plan includes 100,000 tool calls per month with no credit card, which covers most personal Signwell use. Paid plans add higher limits and team features. Your Signwell plan and its API limits still apply as usual.

Built-in connectors usually give one AI access to a limited set of apps. Many people use Composio because it lets their AI connect to more apps than it normally supports, or connect to multiple accounts for the same app (e.g. connect Claude to multiple Signwell accounts).

With Composio, you connect Signwell once and then use it across different AI assistants without setting it up separately in each one. Connect your apps to Composio once, then connect Composio to whichever AI you use, whether that's Claude, ChatGPT, Hermes, or your own custom assistant.

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