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Text Content

Products
Swap
 API

Enable crypto trading

Tx Relay
 API

Build frictionless apps

Price
 API

Realtime DEX prices

Orderbook
 API

Unlock limit orders

Tx History
 API

Show order history

Token Registry
 API

Curate tokens

SolutionsPricing
Docs
Content Hub
Contact usGo to dashboard



Products

Swap API

Enable crypto trading

Tx Relay API

Build frictionless apps

Price API

Realtime DEX prices

Orderbook API

Unlock limit orders

Tx History

Show order history

Token Registry API

Curate tokens

SolutionsPricing
Docs
Content hubContact us
Go to dashboard

Swap

API

Enable crypto trading

Price

API

Realtime DEX prices

Tx Relay

API

Build frictionless apps

ORDERBOOK

 API

Unlock limit orders

TX HISTORY

 API

Show order history

TOKEN REGISTRY

 API

Boots tokens

SolutionsPricing
Docs
Content hubContact sales

NEW
0x Protocol, Explorer and Governance have moved to 0xProtocol.org


CONNECTING DEVELOPERS TO
WEB3 MARKETS

YOUR ONE STOP SHOP TO BUILD FINANCIAL PRODUCTS ON CRYPTO RAILS. ENABLE FASTER
TRADING, BETTER PRICES AND SUPERIOR UX IN YOUR APP.

Get started


Trusted by leading Web3 apps






A FULLY INTEGRATED SUITE OF APIS

Tx Relay
API

BUILD FRICTIONLESS APPS WITH END-TO-END GASLESS INFRASTRUCTURE.


Swap
API

POWER CRYPTO TRADING FOR THOUSANDS OF TOKENS WITH THE DEEPEST LIQUIDITY.

Coming soon

Token Registry
API

ENRICH YOUR TRADING APP WITH COMPREHENSIVE AND CURATED TOKEN METADATA.

Coming soon

Orderbook
API

ENABLE LIMIT ORDERS IN YOUR APP OR TAKE LIQUIDITY DIRECTLY FROM THE 0X
ORDERBOOK.

Price
API

REALTIME DEX PRICES FOR ANY TOKEN AT YOUR FINGERTIPS SO YOU NEVER MISS AN
OPPORTUNITY.


Coming soon

Tx History
API

EASILY SHOW YOUR USERS THEIR TRADING HISTORY IN ONE PLACE.

Swap
API

POWER CRYPTO TRADING FOR THOUSANDS OF TOKENS WITH THE DEEPEST LIQUIDITY.

Price
API

REALTIME DEX PRICES FOR ANY TOKEN AT YOUR FINGERTIPS SO YOU NEVER MISS AN
OPPORTUNITY.

Tx Relay
API

BUILD FRICTIONLESS APPS WITH END-TO-END GASLESS INFRASTRUCTURE.

Coming soon

Token Registry
API

ENRICH YOUR TRADING APP WITH COMPREHENSIVE AND CURATED TOKEN METADATA.

Coming soon

Orderbook
API

ENABLE LIMIT ORDERS IN YOUR APP OR TAKE LIQUIDITY DIRECTLY FROM THE 0X
ORDERBOOK.

Coming soon

Orderbook
API

ENABLE LIMIT ORDERS IN YOUR APP OR TAKE LIQUIDITY DIRECTLY FROM THE 0X
ORDERBOOK.

Coming soon

Tx History
API

EASILY SHOW YOUR USERS THEIR TRADING HISTORY IN ONE PLACE.


DESIGNED TO WORK SEAMLESSLY TOGETHER

0x offers the core building blocks to create the most powerful Web3 apps.

Get started
Token Registry API
Enrich your app with comprehensive and curated token metadata.

Tx History API
Show users their trading history in one place.

Swap API and Tx Relay API
Unlock trading for thousands of tokens with the deepest liquidity.

Orderbook API
Offer limit orders in your app.



APIS AND SOLUTIONS
‍TO ENABLE WEB3 EXCHANGE

Building in Web3 becomes increasingly difficult as the number of ecosystems, DEX
protocols, and tokens grow. Our APIs and solutions remove this complexity and
reduce the infrastructure overhead.

0X DASHBOARD

Generate API keys, monitor and manage your integrations, get access to new APIs
and tap into more developer resources.

PRICE COMPETITIVENESS

A single API integration unlocks thousands of pairs with unrivaled liquidity
from 100+ exchanges and professional market makers.

ENRICHED DATA APIS TO HELP YOU BUILD

Access the most comprehensive and curated token metadata to help you expand your
product.

SECURE AND AUDITED SMART CONTRACTS

Security is critical for our developers and their users. Third party audits
ensure that there are no vulnerabilities to exploit.

ENTERPRISE-GRADE DEX INFRASTRUCTURE

Designed to meet the requirements of Web3 apps, exchanges and financial
institutions with 99.9% uptime.


ENABLE
CRYPTO TRADING
WITH A FEW
LINES OF CODE

Read the docs
Get price quote
Copy to clipboard
curl https://api.0x.org/swap/v1/quote
buyAmount
100
buyToken
DAI
sellToken
USDC
{
  "chainId": 1,
  "price": "0.9998894159683656",
  "guaranteedPrice": "0.989890521808681944",
  "estimatedPriceImpact": "0.0503",
  "to": "0xdef1c0ded9bec7f1a1670819833240f027b25eff",
  "data": "0x6af479b200000000000000000000000000000000",
  "value": "0",
  "gas": "119595",
  "estimatedGas": "119595",
  "gasPrice": "27000000000",
  "protocolFee": "0",
  "buyTokenAddress": "0x6b175474e89094c44da98b954eedeac495271d0f",
  "sellTokenAddress": "0xa0b86991c6218b36c1d19d4a2e9eb0ce3606eb48",
  "buyAmount": "99745615969657880000",
  "sellAmount": "100000000",
  "sources": [
    {
      "name": "Uniswap_V2",
      "proportion": "1"
    },
    {
      "name": "Curve",
      "proportion": "0"
    },
    {
      "name": "Balancer",
      "proportion": "0"
    },
    {
      "name": "Balancer_V2",
      "proportion": "0"
    }
   ],
  "orders": [
    {
      "type": 0,
      "source": "Uniswap_V2",
      "makerToken": "0x6b175474e89094c44da98b954eedeac495271d0f",
      "takerToken": "0xa0b86991c6218b36c1d19d4a2e9eb0ce3606eb48",
      "makerAmount": "99745615969657880000",
      "takerAmount": "100000000",
      "fillData": {
         "tokenAddressPath": [
           "0xa0b86991c6218b36c1d19d4a2e9eb0ce3606eb48",
           "0x6b175474e89094c44da98b954eedeac495271d0f"
        ],
        "router": "0xf164fc0ec4e93095b804a4795bbe1e041497b92a"
      },
      "fill": {
        "input": "100000000",
        "output": "99745615969657880000",
        "adjustedOutput": "96801237004628048423",
        "gas": 90000
      }
    }
  ],
  "allowanceTarget": "0xdef1c0ded9bec7f1a1670819833240f027b25eff",
  "decodedUniqueId": "f784c3f24d-1678769219",
  "sellTokenToEthRate": "1678.50772",
  "buyTokenToEthRate": "1677.70881198281001559",
  "expectedSlippage": null
}


POWERING LEADING
WEB3 APPLICATIONS

0x is used by fintech companies, self-custody wallets, and Web3 native
organizations with millions of users across the world.


$139B+

TRADING VOLUME


65M+

TRANSACTIONS


7M+

UNIQUE WALLETS

“0X HAS ONE OF THE MOST EXTENSIVE AND RELIABLE DEX API SERVICES IN THE WEB3
ECOSYSTEM, BACKED BY A PROFESSIONAL AND RESPONSIVE TEAM. IT'S BEEN A PLEASURE
WORKING WITH THEM TO LAUNCH OUR DEX FEATURES ON COINBASE WALLET.”

Sid Coelho-Prabhu

Director of Product at Coinbase

“WE HAVE BEEN WORKING WITH THE 0X TEAM FOR 3 YEARS NOW AND THEIR APIS ARE A
GREAT CHOICE FOR ANY BUILDERS OUT THERE LOOKING FOR ULTIMATE LIQUIDITY
AGGREGATION FOR THEIR USERS. WE DEFINITELY RECOMMEND LOOKING INTO 0X AS A
SIMPLE, READY-MADE, PLUG AND PLAY SOLUTION.”

Nikola Jankovic

Founder at DeFi Saver

“WE'VE BEEN A PROUD 0X PARTNER AND COMMUNITY MEMBER FOR OVER 3 YEARS. IN ORDER
TO HELP OUR USERS GET THE MOST EFFICIENT TRADING ROUTES ON ZERION, WE KNEW WE
WANTED TO USE THEIR SWAP API. IT WAS EASY TO INTEGRATE AND ALLOWED US TO OFFER
USERS ACCESS TO A WIDE RANGE OF LIQUIDITY SOURCES ON ETHEREUM AND OTHER EVM
CHAINS.”

Evgeny Yurtaev

Co-founder & CEO at Zerion

“USING SWAP API WAS A NO BRAINER FOR US. AS A STARTUP, BEING ABLE TO TAP INTO
100+ EXCHANGES WITH A SINGLE API INTEGRATION SAVED US A LOT OF TIME THAT WE CAN
NOW SPEND FOCUSED IN OTHER AREAS OF OUR PRODUCT AND OUR USERS. WE ARE ALSO
EXCITED TO PARTNER WITH THE 0X TEAM GIVEN THEIR EXPERTISE WORKING WITH WALLETS
AND FINTECHS. THE TEAM IS PROFESSIONAL, RELIABLE AND EXPERTS IN THEIR FIELD.”

Jean Meyer

CEO at Deblock

“WITH SWAP API WE NEVER HAVE TO WORRY ABOUT NEW LIQUIDITY SOURCES COMING OUT AND
THE INFRASTRUCTURE OVERHEAD OF SEARCHING FOR THE BEST TRADING ROUTES. IT’S ALSO
BEEN SUPER EASY FOR US TO LAUNCH TRADING IN OTHER CHAINS THANKS TO SWAP API
BEING AVAILABLE IN THE MAJOR CHAINS. 0X TURNKEY SOLUTIONS HAVE ALLOWED US TO
FOCUS ON OTHER AREAS OF OUR PRODUCT AND MAKE ZAPPER ONE OF THE MOST POPULAR APPS
IN WEB3.”

Justin D’Errico

Lead Engineer at Zapper



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