SendsHub API Documentation

API Documentation

A structured API for integrating wallet management, transfers, governance controls, and secure workflows into your product or internal systems.

REST API

JSON over HTTPS
Auth

API key + HMAC signing
Sandbox

Free test environment
Webhooks

JS · Python
Audit Endpoints

SOC 2 aligned

Overview

Built for integration from day one

The Sends Hub API is designed to help teams integrate digital asset infrastructure into their own applications and internal systems. It provides a structured interface for wallet management, transfers, operational controls, and secure workflows.

API Coverage

What the API covers

A unified surface across the full operational stack — from wallet provisioning to governance-aware transaction flows.

Wallet creation and configuration
Asset and address management
Transaction initiation and tracking
Treasury balance visibility

API Capabilities

Documentation sections

Navigate directly to the area relevant to your integration stage.

Getting Started

Setup, keys, first API call

Authentication

API keys, HMAC signing, scopes

Wallets

Create, configure, manage wallet structure

Assets & Addresses

Supported assets, address generation

Transactions

Initiate, track, and manage transfers

Users & Roles

Access control, role assignment

Approvals

Approval flows, multi-sig logic

Webhooks

Events, payload schema, retry logic

Errors & Status Codes

Error reference, HTTP codes, handling

Integration Value

Why integrate through Sends Hub APIs

01
Unified architecture

Work with one infrastructure layer across wallet operations and governance controls.
02
Faster implementation

Reduce time spent building internal tooling around custody and treasury workflows.
03
Operational flexibility

Adapt integration to your business logic, product flow, and internal approval structure.
04
Enterprise-readiness

Support more controlled and auditable digital asset operations from the start.

Support

Need implementation guidance?

Our team can help you evaluate the right integration scope for your product, treasury setup, or internal operational workflow.

Integration Scoping

Define the right API endpoints and integration scope for your specific product and use case
Sandbox Access

Test your full integration against a live sandbox environment before deploying to production
Technical Review

Get an architecture review from our technical team before going live in production

Get Started

Start integrating today

Get API access and explore the full documentation to begin building with Sends Hub infrastructure.