What is this MCP used for?

This MCP allows your AI client to manage digital signatures and contract workflows on the eSign platform in China.

Which AI clients can I use with this?

You can use this MCP with any compatible client, including Claude, Cursor, and Windsurf.

Do I need an eSign account?

Yes, you will need to provide your eSign App ID and App Secret to connect the MCP to your account.

Can I get signing links through my AI?

Yes, the agent can retrieve specific execution URLs that you can then send to signers.

Can I use my own templates?

Yes, the agent can list and use your existing predefined document templates from eSign.

How do I find my eSign App ID and Secret?

Log in to the eSign Open Platform, create a new application, and you will find your App ID and App Secret in the application credentials section.

Can I retrieve the signing URL for a participant?

Yes. Use the get_execute_url capability with the flow ID and the signer's account ID. Your agent will retrieve the unique URL where the participant can perform the signature.

Is it possible to download the signed documents?

Yes! Once a sign flow is completed, you can use the download_docs capability to retrieve temporary download links for all documents included in that flow.

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Connect eSign (e签宝) to ChatGPT, Claude and Gemini

Set it up once and it works in ChatGPT, Claude, Cursor, and any other client you love. It all runs safely in the background, so you can relax and focus on what really matters. Run your entire contract lifecycle through a single chat interface.

Ask AI about this Connector

Developed, maintained, and hosted by Vinkius.

MCP VERIFIED · PRODUCTION READY · VINKIUS GUARANTEED

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Works with modern AI clients that support MCP, including ChatGPT, Claude, Cursor, and more.

Your AI does the work. We keep it safe and sound.

No other AI tool gives you this. Your workflow runs in the client you already love, your account stays protected, and you decide what the agent can and cannot do. It is the whole reason to make the switch.

Each Connector lives inside our infrastructure, the same place where your workflow runs. The three things below are already part of it, working quietly in the background so you never have to think about them. Nothing to add, nothing to set up, nothing to worry about.

V8 Isolate01

Each Connector runs inside its own sealed environment.

Each Connector runs inside its own sealed V8 runtime — no access to your files, your system, or other servers. A Connector never sees past its own request.

Kill Switch02

One switch stops every agent. Instantly.

One action deactivates every Connector, revokes every token, and ends every session at once. AI Governance keeps the record.

FinOps per User03

Spending limits that pause instead of surprise.

Every user keeps their own connections and credentials, isolated from everyone else. Anything that would cross your spending limit is held for your approval, not billed.

Three controls, built into the layer your AI connects through.

Curated set · 10 capabilities

We ship only the actions that matter.

Capability set01 / 03

01-04

4 capabilities in this set.

Part of 10 available through eSign (e签宝).

01
Add docs
This capability adds specific PDF documents to an existing sign flow.
02
Get org info
Use this to retrieve details about your enterprise eSign account and authorization status.
03
Get sign flow
This capability pulls the specific details for a single sign flow.
04
List sign flows
This capability returns a list of your current signature workflows.

Capability set02 / 03

05-07

3 capabilities in this set.

Part of 10 available through eSign (e签宝).

05
List templates
Use this to see all the predefined document templates available in your account.
06
Create sign flow
This capability initiates a brand new digital signature workflow.
07
Start flow
Use this to officially begin a sign flow that has been created.

Capability set03 / 03

08-10

3 capabilities in this set.

Part of 10 available through eSign (e签宝).

08
Add signers
This capability adds new participants to a signature workflow.
09
Download docs
This capability retrieves the completed documents from a specific flow for download.
10
Get execute URL
This capability gets the specific URL a participant needs to visit to sign a document.

Real work

What teams actually run

Automated Employee Onboarding

An HR manager tells the agent to use an employment template to send a contract to a new hire.

B2B Sales Closing

A sales rep asks the agent for the signing URL to send to a client for a sales agreement.

Contract Status Audits

A legal ops specialist asks the agent to list all active flows to check for pending signatures.

Document Archiving

A user asks the agent to download completed documents from a specific finished flow.

Automate a task

Put eSign (e签宝) to work on one thing.

Step-by-step automations your AI runs through this Connector: the workflow, the prompts to start with, and the exact capabilities behind each move.

One connector, every AI

eSign (e签宝) works with the most popular AI clients.

These are the most popular clients, each with a step-by-step guide: one link, set up once, with governance and visibility built in. And because everything runs on the MCP standard, the same connection also works in any other compatible client — nothing to rebuild.

Building your own app? The connector is yours to use.

You don't need a client to put eSign (e签宝) to work: the same hosted connection plugs into your own applications and agent code, with the same governance on every request. Build with it, chat with it — one connection for both.

Observed, not estimated

913ms average. Fast in production.

eSign (e签宝) is checked daily against the live service.

Daily averagePeak 1252ms

Oct 3Today

Fastest day: 701ms
Slowest day: 1252ms
14-day trend: Slowing+20%

Connect your client

One URL. Every client.

Activate the Connector, copy your link, and paste it into the client you already use. 10 capabilities arrive ready to run.

Preview access · not provider authentication

The vk_preview_* token belongs to Vinkius preview infrastructure. It lets Claude discover and display the capabilities of eSign (e签宝), so you can see the experience inside your AI.

It does not authenticate your account with eSign (e签宝). Actions requiring credentials or live account data may not run until you activate the Connector and authorize the service.

eSign (e签宝) Connector

You're all set. Choose your MCP client and follow the setup instructions.

Connector linkhttps://edge.vinkius.com/vk_preview_AqW09NG0ZO8hwYYbAp772iEU9BR8WPg7mN5lX7v2/mcp

Claude Desktop

Follow the steps below to connect in seconds.

1In Claude Desktop, open Settings → Connectors.
2Click “Add custom connector” and paste the connector link above as the remote MCP server URL.
3Click Add and start a new chat — eSign (e签宝) capabilities are ready to use.

Configuration · claude_desktop_config.jsonCopy

{
  "mcpServers": {
    "esign-e-mcp": {
      "url": "https://edge.vinkius.com/vk_preview_AqW09NG0ZO8hwYYbAp772iEU9BR8WPg7mN5lX7v2/mcp"
    }
  }
}

Claude
ChatGPT
Cursor
VS Code
Windsurf
Claude Code
JetBrains
Cline

Step-by-step instructions for each client are in the guide. How to connect

Guided setup for Claude? Set up eSign (e签宝) in Claude and other AIs

See all the AI clients this connector works with ↑

Who it's for

Built for the work eSign (e签宝) owners hand off.

Professionals managing legal or administrative workflows in China.

01
Legal Operations
They hand off contract creation and progress monitoring to the agent.
02
HR Managers
They use the agent to manage employment contracts and policy acknowledgments.
03
Sales Operations
They coordinate B2B agreements and track client signatures via chat.

FAQ

Questions eSign (e签宝) owners ask.

01
What is this MCP used for?
This MCP allows your AI client to manage digital signatures and contract workflows on the eSign platform in China.
02
Which AI clients can I use with this?
You can use this MCP with any compatible client, including Claude, Cursor, and Windsurf.
03
Do I need an eSign account?
Yes, you will need to provide your eSign App ID and App Secret to connect the MCP to your account.
04
Can I get signing links through my AI?
Yes, the agent can retrieve specific execution URLs that you can then send to signers.
05
Can I use my own templates?
Yes, the agent can list and use your existing predefined document templates from eSign.
06
How do I find my eSign App ID and Secret?
Log in to the eSign Open Platform, create a new application, and you will find your App ID and App Secret in the application credentials section.
07
Can I retrieve the signing URL for a participant?
Yes. Use the get_execute_url capability with the flow ID and the signer's account ID. Your agent will retrieve the unique URL where the participant can perform the signature.
08
Is it possible to download the signed documents?
Yes! Once a sign flow is completed, you can use the download_docs capability to retrieve temporary download links for all documents included in that flow.

Explore

Your AI does the work. We keep it safe and sound.

Each Connector runs inside its own sealed environment.

One switch stops every agent. Instantly.

Spending limits that pause instead of surprise.

We ship only the actions that matter.

01-04

Add docs

Get org info

Get sign flow

List sign flows

05-07

List templates

Create sign flow

Start flow

08-10

Add signers

Download docs

Get execute URL

What teams actually run

Automated Employee Onboarding

B2B Sales Closing

Contract Status Audits

Document Archiving

Building your own app? The connector is yours to use.

eSign (e签宝) Connector

Claude Desktop

Legal Operations

HR Managers

Sales Operations

What is this MCP used for?

Which AI clients can I use with this?

Do I need an eSign account?

Can I get signing links through my AI?

Can I use my own templates?

How do I find my eSign App ID and Secret?

Can I retrieve the signing URL for a participant?

Is it possible to download the signed documents?

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