ChainBridge

API Documentation

Non-custodial DEX aggregator API. Compares 0x (including 0x Gasless), KyberSwap and ParaSwap on Ethereum, Arbitrum, Base, Optimism, Polygon, BNB Chain, Avalanche and Linea; quotes cross-chain swaps via Relay, LI.FI and THORChain (to native BTC, LTC, DOGE, BCH); bridge quotes via LI.FI and Socket. No API key; rate limited per IP. Fee schedule: https://www.chainbridge.trading/about#fees

OpenAPI 3.020 endpoints Raw JSON spec

SOR

Smart Order Router — swap quotes and execution (5)
GET/api/sor/quotesGet swap quotes from all aggregators
POST/api/sor/swapGet swap transaction data
GET/api/sor/aggregatorsList available aggregators
GET/api/sor/order-statusCheck UniswapX order fill status (UniswapX is disabled by default)
GET/api/trade/recent-swapsGet recent swaps for a pair

Cross-chain

Cross-chain swap quotes and status (Relay, LI.FI, THORChain) (3)
GET/api/crosschain/quoteGet cross-chain swap quotes
GET/api/crosschain/statusGet cross-chain delivery status
GET/api/thorchain/quoteGet a raw THORChain quote

Bridge

Cross-chain bridge quotes, transactions, and status (LI.FI, Socket; API only) (4)
GET/api/bridge/quoteGet cross-chain bridge quotes
POST/api/bridge/transactionGet bridge transaction data
GET/api/bridge/statusCheck bridge transaction status
GET/api/bridge/chainsList supported bridge chains

Price

Token USD pricing via CoinGecko (1)
GET/api/priceGet USD prices for tokens

Security

Token safety checks via GoPlus Security (1)
GET/api/token-safetyToken safety verdicts (honeypot, taxes, risky permissions)

Gasless

Gasless swap submission and status (0x gasless) (2)
POST/api/gasless/submitSubmit gasless swap order
GET/api/gasless/statusCheck gasless order status

Simulation

Pre-swap transaction simulation (Tenderly) (1)
POST/api/simulationSimulate swap transaction

SSE

Server-Sent Events for real-time data (3)
GET/api/price/streamReal-time price stream (SSE)
GET/api/bridge/status/streamBridge status stream (SSE)
GET/api/gasless/status/streamGasless order status stream (SSE)