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                               P R O T O C O L

Bind Protocol SDK Examples

Working examples for @bind-protocol/sdk.

Getting Started

Create a Bind account

• Sign up at https://dashboard.bindprotocol.xyz
  • Select Prover account type (Verifer accounts cannot create proofs, only verify shared proofs and issue W2C JWT credentials)
  • Check your email for the confirmation code
• Navigate to the Policy Marketplace
  • Install one of the demo policies, such as Credit Score Demo
• Create an API key
  • Copy the key
• Run the setup script (npm run setup or bash setip.sh) in the example folder for the policy you installed
  • You will be prompted to provide your API key
  • You will also be prompted for a verifer key, you can use the same API key from your Prover account
• Run the various example steps
• Once you've generated a proof you will get timeboxes, pre-signed S3 download links for the proof artifacts. You can drag and drop these into the associated file drops in on the Verify Proof page if you wish, or you can navigate to the Prove Jobs page.
• If you've run the verify step you can see an issued credential on the Credentials page

Prerequisites

• Node.js 18+
• A Bind Protocol API key

Examples

Example	Description	Key concepts
credit-score	Credit-score verification with ZK proofs	PASS_FAIL policy, prove jobs, proof sharing, credential verification
dimo-risk	Vehicle risk band assessment using DIMO telemetry	SCORE→BAND policy, rule contributions, insurance underwriting

Quick Start

cd credit-score   # or dimo-risk
npm run setup

The setup script walks you through creating a .env file and installing dependencies. From there, run npm start to execute the full demo flow.

How It Works

Each example follows the same core flow:

sequenceDiagram
    participant User
    participant Bind as Bind Protocol
    participant Source as Data Source<br/>(HTTPS API)
    participant Verifier

    Note over User,Verifier: 1. PROVE

    User->>Bind: Submit policy + private inputs
    Bind->>Source: Fetch data via zkTLS
    Source-->>Bind: Authenticated response
    Bind->>Bind: Execute policy against data
    Bind->>Bind: Generate ZK proof
    Bind-->>User: Verifiable Credential + ZK proof

    Note over User,Verifier: 2. SHARE

    User->>Verifier: Present credential + proof
    Note right of User: Private inputs are never<br/>included in the payload

    Note over User,Verifier: 3. VERIFY

    Verifier->>Verifier: Cryptographically verify ZK proof
    Verifier->>Verifier: Read disclosed output fields
    Verifier-->>User: Accepted ✓

    Note over User,Verifier: Private inputs never leave the User's device

Loading

See each example's README for the full walkthrough.

References

• @bind-protocol/sdk on npm
• @bind-protocol/policy-spec on npm
• Documentation
• Website