Orderbook API

REST API for interacting with the CoW Protocol orderbook — quotes, order submission, retrieval, and cancellation

The Orderbook API is the primary interface for interacting with CoW Protocol’s order management system.

Base URLs

Network	Production	Staging
Ethereum	https://api.cow.fi/mainnet	https://barn.api.cow.fi/mainnet
Gnosis Chain	https://api.cow.fi/xdai	https://barn.api.cow.fi/xdai
Arbitrum One	https://api.cow.fi/arbitrum_one	https://barn.api.cow.fi/arbitrum_one
Base	https://api.cow.fi/base	https://barn.api.cow.fi/base
Avalanche	https://api.cow.fi/avalanche	https://barn.api.cow.fi/avalanche
Polygon	https://api.cow.fi/polygon	https://barn.api.cow.fi/polygon
Lens	https://api.cow.fi/lens	https://barn.api.cow.fi/lens
BNB	https://api.cow.fi/bnb	https://barn.api.cow.fi/bnb
Linea	https://api.cow.fi/linea	https://barn.api.cow.fi/linea
Plasma	https://api.cow.fi/plasma	https://barn.api.cow.fi/plasma
Ink	https://api.cow.fi/ink	https://barn.api.cow.fi/ink
Sepolia	https://api.cow.fi/sepolia	https://barn.api.cow.fi/sepolia

Key Endpoints

Quotes

• POST /api/v1/quote — Get a price quote for a trade

Orders

• POST /api/v1/orders — Submit a signed order
• GET /api/v1/orders/{UID} — Get order by UID
• DELETE /api/v1/orders/{UID} — Cancel an order
• GET /api/v1/account/{owner}/orders — Get orders for an account

Trades

• GET /api/v1/trades — Get trades (filter by owner or orderUid)

Auction

• GET /api/v1/auction — Get the current batch auction
• GET /api/v1/solver_competition/{auction_id} — Get solver competition results

Interactive Documentation

Explore the full API specification at api.cow.fi/docs.

SDK Access

For programmatic access via TypeScript, use the OrderBookApi from the TypeScript SDK.