eSignatures MCP server for AI agents and assistants

Securely connect your AI agents and chatbots (Claude, ChatGPT, Cursor, etc) with eSignatures MCP or direct API to create templates, send contracts, manage signers, and track signing workflows through natural language.

eSignatures logoeSignatures
Api Key

eSignatures is an electronic signature platform for creating templates, sending contracts, and managing signers. It helps teams close agreements faster with trackable, paperless signing workflows.

28 Tools

Try eSignatures now

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

TOOL ROUTER PLAYGROUND
eSignatures
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TOOLS

Supported Tools

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

Add Contract Signer

Add a signer to an editable contract without automatically sending a signature request.

Add Contract Signers

Add a non-empty list of signers to an editable contract by calling the provider's singular endpoint sequentially in request order.

Add Template Collaborator

Create a name-only collaborator who can edit a template.

Create and Send Contract

Create a contract from a template or from ad-hoc Markdown and immediately send signature requests to its signers.

Create Contract Draft

Create a test or production contract draft from a template or from ad-hoc Markdown, without sending signature requests or otherwise delivering it externally.

Create Template

Create a reusable Markdown contract template.

Delete Contract Signer

Permanently remove a signer from an editable contract.

Delete Template

Permanently delete a template.

Duplicate Template

Duplicate a template with a new title plus optional placeholder replacements.

Get Contract

Get one contract's current status, details, signers, signer field values, and temporary signed-PDF URL when available.

Get Contract Content

Return the Markdown content of one contract.

Get Contract Placeholder Fields

Return the current placeholder replacements for one contract.

Get Template

Get one template's metadata, placeholder keys, and signer-field IDs.

Get Template Content

Return the Markdown content of one template.

Invite Template Collaborator

Invite a collaborator to edit a template.

List Template Collaborators

Return all collaborators who can edit one template.

List Templates

Return all templates available to the connected account.

Preview Contract Content Update

Preview the prospective Markdown from exact find-and-replace edits without mutating the contract.

Preview Template Content Update

Preview the prospective Markdown from exact find-and-replace edits without mutating the template.

Remove Template Collaborator

Remove a collaborator's permission to edit a template.

Resend Sign Request

Resend a signature request to one signer.

Send Draft Contract

Send an existing draft to its signers.

Update Contract Content

Apply exact Markdown find-and-replace edits to a contract.

Update Contract Placeholder Fields

Update selected placeholder replacements on an unsigned contract.

Update Contract Signer

Update selected contact, delivery, authentication, or redirect details for a signer without resending the contract.

Update Template

Update a template's title and/or labels without changing its Markdown content.

Update Template Content

Apply exact Markdown find-and-replace edits to a template.

Withdraw Contract

Irreversibly withdraw an active unsigned contract so it can no longer be signed.

SETUP GUIDE

Connect eSignatures 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: ["esignatures"],
  mcp: true,
});
Create a session scoped to eSignatures 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 the NDA template to alex@example.com for signature",
  stopWhen: stepCountIs(10),
});

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

Connect eSignatures 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: ["esignatures"] });
const tools = await session.tools();
Initialize Composio with the OpenAI Responses provider and create a session scoped to eSignatures
3

Run eSignatures tools with your agent

typescript
let response = await client.responses.create({
  model: "gpt-5.6-sol",
  tools,
  input: [{ role: "user", content: "Send the NDA template to alex@example.com for signature" }],
});

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 eSignatures tool calls through the session, and print the final answer

Why Use Composio?

AI Native eSignatures Integration

  • Supports both eSignatures MCP and direct API based integrations
  • Structured, LLM-friendly schemas for reliable contract and signer workflows
  • Rich coverage for creating templates, sending documents, checking status, and managing signing flows

Managed Auth

  • Secure API key handling without hard-coding credentials in your agent code
  • Central place to manage, scope, and revoke eSignatures access
  • Per user and per environment credentials, so your signing workflows stay clean and safe

Agent Optimized Design

  • Tools are tuned for AI agents, so prompts like “send this NDA for signature” map cleanly to actions
  • Comprehensive execution logs show what contract action ran, when it ran, and on whose behalf
  • Clear tool schemas help reduce failed signing requests and missing signer details

Enterprise Grade Security

  • Fine-grained RBAC so you control which agents and users can access eSignatures
  • Scoped, least privilege access to contract templates, signers, and signing workflows
  • Full audit trail of agent actions to support review, compliance, and contract operations
FAQ

Frequently asked questions

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

When you connect a eSignatures account through Composio, every action runs under that account, so anything the agent creates, sends, or changes shows up in eSignatures 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 eSignatures. If eSignatures 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 eSignatures 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 eSignatures 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 eSignatures rejects the old key. Create a new key in eSignatures and reconnect the account from the Composio dashboard or by asking your agent to reconnect eSignatures. Nothing else changes.

Composio's free Hobby plan includes 100,000 tool calls per month with no credit card, which covers most personal eSignatures use. Paid plans add higher limits and team features. Your eSignatures 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 eSignatures accounts).

With Composio, you connect eSignatures 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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