A protocol-grade MCP server for privacy-preserving credential verification and zero-knowledge proof generation.
Install & Download
1. ClawHub CLI
The fastest way to install a skill directly from the registry.
npx clawhub@latest install bind-protocol-mcp
2. Manual Installation
Copy the skill folder to one of these locations
~/.openclaw/skills/ <project>/skills/ Priority: Workspace > Local > Bundled
3. Prompt Installation
Copy this prompt to OpenClaw to install it automatically.
Help me install bind-protocol-mcp using Clawhub. If Clawhub is not installed, install it first (npm i -g clawhub).
Prefer to download?
Get the raw skill files in a ZIP archive.
What is Bind Protocol MCP Server?
The Bind Protocol MCP server enables AI agents to handle Verifiable Credentials (VC-JWT) with a privacy-first approach. It integrates seamlessly into Openclaw Skills to provide tools for local credential parsing and signature verification, while offloading zero-knowledge proof generation and revocation checks to the Bind API. By leveraging this skill, developers can automate complex identity and policy authoring workflows without compromising sensitive data.
The architecture is designed to keep raw credential data local. Only irreversible hashes, policy specifications, and proof inputs are transmitted to the Bind API, ensuring that your Openclaw Skills implementations maintain the highest standards of data sovereignty and security.
Bind Protocol MCP Server Use Cases
- Automating the verification of VC-JWT strings provided by users in real-time.
- Generating zero-knowledge proofs for sensitive data like income, credit scores, or driver mileage.
- Authoring and validating custom verification policies for specific organizational needs.
- Investigating issuer metadata and public signing keys for secure third-party integrations.
- Issuing new verifiable credentials based on successfully completed ZK proof jobs.
How Bind Protocol MCP Server Works
- The AI agent receives a credential or a request for proof generation from the user.
- Local tools parse and verify the credential signature on-device to ensure privacy and data integrity.
- For revocation checks, the skill generates a SHA-256 hash locally and queries the Bind API.
- To create proofs, the agent builds a policy spec and submits inputs to a ZK circuit via the Bind proving service.
- The agent polls the job status until completion and can then issue a new verifiable credential based on the proof results.
Bind Protocol MCP Server Setup
To add this to your Openclaw Skills, you must have Node.js 18+ and a Bind agent key. Install and configure the server as follows:
# The server is run via npx
npx @bind-protocol/mcp-server
Add the server to your MCP configuration (e.g., .mcp.json or Claude Desktop config):
{
"mcpServers": {
"bind": {
"command": "npx",
"args": ["@bind-protocol/mcp-server"],
"env": {
"BIND_API_KEY": "your_idbr_agent_key_here"
}
}
}
}
Bind Protocol MCP Server Data Schema & Taxonomy
The skill manages data across local and API-backed boundaries to maximize security for your Openclaw Skills workflows:
| Component | Format | Storage Location |
|---|---|---|
| VC-JWT | JWT String | Local memory only |
| Credential Hash | SHA-256 | Sent to API for revocation |
| Policy Specs | JSON | Stored on Bind API |
| ZK Circuits | Noir binary | Generated via Bind API |
| Proof Inputs | Numeric/Encoded | Sent to proving service |
| Receipts | File system | ~/.bind/receipts |
Bind Protocol MCP Server Advanced Features
- Selective disclosure of claims using Noir-based ZK circuits.
- Automated mapping of string-based inputs to numeric values for ZK circuit compatibility.
- Multi-tier organization management and permission auditing via the
bind_whoamitool. - Support for complex arithmetic and logical evaluation rules within custom policies.
- Asynchronous job polling for long-running circuit compilation and proof generation tasks.
SKILL.md
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