API Documentation
Use the Fystack API to create and manage secure MPC wallets, authorize transactions and integrate advanced wallet features like transaction policies and multi-approval flows, all without ever touching a private key.
Our API is designed for developers who want enterprise-grade security with plug-and-play simplicity. Get started in minutes using our RESTful endpoints or one of our fully featured SDKs.
Get your API key
Sign up on the Fystack platform to create API keys and start making requests.
Self-hosted deployment
Docker Compose
Run Fystack on your own infrastructure with Docker Compose. Follow the self-hosting guide to get a full stack up and running.
Kubernetes
Book a call with our engineering team to explore Fystack self-hosted on Kubernetes.
Product documentation
Workspace
Isolated environments for managing wallets, users, transactions, and settings.
Network Management
Configure network settings and monitor network health.
Asset Management
Every asset configured for your workspace, with its contract address and status.
User Management
Add members, assign roles, and update permissions.
Approval Group
Choose who signs off on sensitive actions and how many signatures are required.
Security & 2FA
Secure your account with Passkey and TOTP two-factor authentication.
Withdrawal
Send funds with address risk screening, category tagging, and approval queues.
Address Book
Save counterparty addresses across chains for withdrawals, sweeps, and policies.
Web3 Sign
Review and approve Web3 signing requests in the dashboard.
Gas Station
Keep wallets funded with gas from a shared multi-chain Gas Tank.
Automation & Sweep
Sweep funds between wallets automatically with sweep tasks.
Policies
Automatically allow, block, or route sensitive actions through approval.
Alerts
Get real-time wallet activity alerts in channels like Telegram.
API resources
API Keys
Get the HMAC secret or generate an Ed25519 key pair to sign API requests.
Wallets
Create and manage secure wallets for digital assets with standard and MPC options.
Transfers
Initiate and manage transfers from your wallets.
Web3 Sign
Sign messages, typed data, and transactions with Fystack wallets.
Webhooks
Receive events from Fystack and verify webhook payloads.
Pay
Create checkouts and accept crypto payments from your users.
Networks
Retrieve supported blockchain networks and rescan transactions.
Assets
Query supported assets and add or remove them from wallets.
Workspaces
Retrieve workspace statistics, balances, and analytics.
Policies
Create, validate, and manage programmable policy rules.