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White Rabbit Developer Docs

Build anything.
Automate on-chain.

Connect blockchain protocols, APIs, and smart contracts in a visual workflow builder. Execute via SDK, trigger via webhook, and stream results in real time — no infrastructure to manage.

Get Started →SDK Reference

Start here

Introduction

Understand what White Rabbit is and how it fits into your stack.

Quickstart

Execute your first component in under 5 minutes.

Component Library

Browse 40+ ready-made blockchain and utility components.

Real-Time Streaming

Subscribe to live execution status via Server-Sent Events.

Authentication

Configure API keys and workspace credentials.

API Reference

Full REST endpoint reference with request/response schemas.

Component Library

40+ pre-built components across every layer of the blockchain stack.

EVM & Ethereum

Send transactions, interact with contracts, manage Gnosis Safe multisigs, and access DeFi protocols across any EVM chain.

MPC & Key Management

Generate and manage threshold key shares. Sign transactions without ever exposing a raw private key.

HTTP & APIs

Call any REST API, parse JSON responses, and chain results into downstream workflow stages.

Workflow Logic

Use FOR_EACH to iterate over arrays, collect results with Array Builder, and compose complex multi-step flows.

TypeScript SDK

Type-safe execution.
Real-time results.

Install the SDK, pick a component, and choose how you want the result: fire-and-forget with .execute(), or block until complete with .promise() — backed by SSE, not polling.

SDK Quickstart Execute Component

import { CallerSDK, ComponentModule } from 'caller-sdk';

const sdk = new CallerSDK({ apiKey: 'wr_...' });

// Fire-and-forget (webhook delivery)
const execution = await sdk
  .call(ComponentModule.EVM_SEND_TRANSACTION, { ... })
  .execute();

// Wait for result via SSE stream
const result = await sdk
  .call(ComponentModule.EVM_SEND_TRANSACTION, { ... })
  .promise();