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README.md

Coinbase Developer Platform (CDP) Rust SDK

Crates.io Documentation License: MIT

Table of Contents

Tip

If you're looking to contribute to the SDK, please see the Contributing Guide.

CDP SDK

This module contains the Rust CDP SDK, which is a library that provides a client for interacting with the Coinbase Developer Platform (CDP). It includes a CDP Client for interacting with EVM and Solana APIs to create accounts and send transactions, policy APIs to govern transaction permissions, as well as authentication tools for interacting directly with the CDP APIs.

Documentation

CDP SDK has auto-generated docs for the Rust SDK.

Further documentation is also available on the CDP docs website:

Features

  • 🔐 Automatic Authentication: Built-in JWT-based authentication with support for both API keys and wallet secrets
  • 🚀 Async/Await Support: Fully async API with Tokio runtime
  • 📦 Type-Safe: Generated OpenAPI client with full type safety
  • 🌐 Multi-Chain Support: EVM and Solana blockchain support
  • 🧪 Trait-Based Architecture: Easy testing and mocking with comprehensive trait interfaces

Installation

Add this to your Cargo.toml:

[dependencies]
cdp-sdk = { version = "^0.2.0" }
tokio = { version = "1.0", features = ["full"] }

API Keys

To start, create a CDP API Key. Save the API Key ID and API Key Secret for use in the SDK. You will also need to create a wallet secret in the Portal to sign transactions.

Usage

Initialization

Load client config from shell

One option is to export your CDP API Key and Wallet Secret as environment variables:

export CDP_API_KEY_ID="YOUR_API_KEY_ID"
export CDP_API_KEY_SECRET="YOUR_API_KEY_SECRET"
export CDP_WALLET_SECRET="YOUR_WALLET_SECRET"

Then, initialize the client:

use cdp_sdk::{auth::WalletAuth, Client, CDP_BASE_URL};
use reqwest_middleware::ClientBuilder;

#[tokio::main]
async fn main() -> Result<(), Box<dyn std::error::Error>> {
    // Initialize the CDP client using environment variables
    let wallet_auth = WalletAuth::builder().build()?;
    let http_client = ClientBuilder::new(reqwest::Client::new())
        .with(wallet_auth)
        .build();

    let client = Client::new_with_client(CDP_BASE_URL, http_client);

    Ok(())
}

Pass the API Key and Wallet Secret to the client

Another option is to directly pass the API Key and Wallet Secret to the client:

use cdp_sdk::{auth::WalletAuth, Client, CDP_BASE_URL};
use reqwest_middleware::ClientBuilder;

#[tokio::main]
async fn main() -> Result<(), Box<dyn std::error::Error>> {
    // Initialize with explicit credentials
    let wallet_auth = WalletAuth::builder()
        .api_key_id("your-api-key-id".to_string())
        .api_key_secret("your-api-key-secret".to_string())
        .wallet_secret("your-wallet-secret".to_string())
        .build()?;

    let http_client = ClientBuilder::new(reqwest::Client::new())
        .with(wallet_auth)
        .build();

    let client = Client::new_with_client(CDP_BASE_URL, http_client);

    Ok(())
}

Creating EVM Accounts

Create a new EVM account:

use cdp_sdk::types;

// Create a new EVM account with a name
let body = types::CreateEvmAccountBody::builder()
    .name(Some("my-evm-account".parse()?));

let response = client
    .create_evm_account()
    .x_wallet_auth("") // Added by WalletAuth middleware
    .x_idempotency_key("unique-request-id")
    .body(body)
    .send()
    .await?;

let account = response.into_inner();
println!("Created account: {:?}", account);

Retrieving EVM Accounts

Get account by address:

// Get an account by its address
let response = client
    .get_evm_account()
    .address("0x1234567890123456789012345678901234567890")
    .send()
    .await?;

let account = response.into_inner();
println!("Account: {:?}", account);

Get account by name:

// Get an account by its name
let response = client
    .get_evm_account_by_name()
    .name("my-evm-account")
    .send()
    .await?;

let account = response.into_inner();
println!("Account: {:?}", account);

Updating EVM Accounts

Update an existing EVM account:

use cdp_sdk::types;

// Update an account's name
let update_body = types::UpdateEvmAccountBody::builder()
    .name(Some("updated-account-name".parse()?));

let response = client
    .update_evm_account()
    .address("0x1234567890123456789012345678901234567890")
    .body(update_body)
    .send()
    .await?;

let updated_account = response.into_inner();
println!("Updated account: {:?}", updated_account);

Listing EVM Accounts

List all EVM accounts:

// List all EVM accounts with pagination
let response = client
    .list_evm_accounts()
    .page_size(10)
    .send()
    .await?;

let accounts_list = response.into_inner();
println!("Found {} accounts", accounts_list.accounts.len());

for account in accounts_list.accounts {
    println!("Account: {} - {:?}", account.address, account.name);
}

Authentication Tools

This SDK also contains simple tools for authenticating REST API requests to the Coinbase Developer Platform (CDP). Choose the method that best suits your needs:

Method Difficulty Description
Use the CDP Client Easy Use the built-in WalletAuth middleware that automatically handles authentication for all requests.
Generate a JWT from WalletAuth Intermediate Generate a JWT from an existing WalletAuth instance and apply it to your preferred HTTP client.
Generate a standalone JWT Advanced Generate a JWT token with explicit options, manually create your authentication headers, and apply them to your preferred HTTP client.

Visit the CDP Authentication docs for more details.

Use the CDP Client

The WalletAuth middleware automatically adds authentication headers to all requests. See the Initialization section above for setup examples.

Generate a JWT from WalletAuth

If you already have a WalletAuth instance, you can generate JWTs directly:

use cdp_sdk::auth::WalletAuth;

let auth = WalletAuth::builder()
    .api_key_id("your-api-key-id".to_string())
    .api_key_secret("your-api-key-secret".to_string())
    .build()?;

let jwt = auth.generate_jwt(
    "GET",
    "api.cdp.coinbase.com",
    "/platform/v2/evm/accounts",
    120,
)?;

// Use the JWT in your Authorization header:
// Authorization: Bearer {jwt}

Generate a standalone JWT

For cases where you need a JWT without constructing a WalletAuth instance (e.g., authenticating with the x402 payment facilitator), use the standalone generate_jwt function:

use cdp_sdk::auth::{generate_jwt, JwtOptions};

// For REST API requests
let jwt = generate_jwt(JwtOptions::builder()
    .api_key_id("your-api-key-id".to_string())
    .api_key_secret("your-api-key-secret".to_string())
    .request_method("GET".to_string())
    .request_host("api.cdp.coinbase.com".to_string())
    .request_path("/platform/v2/evm/accounts".to_string())
    .expires_in(120u64)
    .build()
)?;

// For websocket connections (omits the uris claim)
let ws_jwt = generate_jwt(JwtOptions::builder()
    .api_key_id("your-api-key-id".to_string())
    .api_key_secret("your-api-key-secret".to_string())
    .build()
)?;

Use your JWT (Bearer token) in the Authorization header of your HTTP request:

curl -L 'https://api.cdp.coinbase.com/platform/v2/evm/accounts' \
  -H 'Content-Type: application/json' \
  -H 'Accept: application/json' \
  -H 'Authorization: Bearer $jwt'

Authentication parameters

Parameter Required Description
api_key_id Yes The unique identifier for your API key. Supported formats: xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx or organizations/{orgId}/apiKeys/{keyId}
api_key_secret Yes Your API key secret. Supported formats: Edwards key (Ed25519) as base64, or Elliptic Curve key (ES256) as PEM.
request_method Yes* The HTTP method (e.g., GET, POST). None for websocket JWTs.
request_host Yes* The API host (e.g., api.cdp.coinbase.com). None for websocket JWTs.
request_path Yes* The API path (e.g., /platform/v2/evm/accounts). None for websocket JWTs.
expires_in No JWT expiration time in seconds. Defaults to 120 (2 minutes).
audience No Optional audience claim for the JWT.

* Either all three request parameters (request_method, request_host, request_path) must be provided for REST API requests, or all three must be None for websocket JWTs.

Development

Building

make build

Testing

Run all tests (unit + integration):

make test

Run unit tests only:

make test-unit

Run end-to-end tests:

make test-e2e

Linting

make lint

Fix linting issues:

make lint-fix

Code Formatting

make format

Documentation

Generate documentation:

make docs

Other Commands

Clean build artifacts:

make clean

Generate client from OpenAPI spec:

make client

For a full list of available commands:

make help

License

This project is licensed under the MIT License - see the LICENSE file for details.

Support

For feature requests, feedback, or questions, please reach out to us in the #cdp-sdk channel of the Coinbase Developer Platform Discord.

Security

If you discover a security vulnerability within this SDK, please see our Security Policy for disclosure information.