0x cryto API

• Get Swap Quotes
Retrieve executable trade quotes for token swaps.

• Get Swap Prices
Fetch real-time token pricing data from decentralized liquidity sources.

• Access Swap Sources
View liquidity providers and DEX sources used in routing.

• Order Books & Orders
Fetch order books and detailed order data for supported markets.

• Shared Header Authentication
Uses API keys securely via shared headers (production & development).

• No Backend Code Required
Fully usable inside Bubble workflows and API Connector logic.

• Open your Bubble Editor.

• From the left panel, go to the Plugins tab.

• Click the Add Plugins button.

• In the search bar, type 0x cryto API.

• Locate the 0x cryto API plugin by Zeroqode and click Install (or Buy if it’s a paid plan).

• After installation, it will appear under Installed plugins.

• Visit the official 0x developer portal:
https://0x.org/docs

• Sign up or log in to your account.

• Create a new API key.

• Copy your API key — you will use it inside Bubble as a shared header.

The plugin supports two shared headers:

• 0x-api-key (shared headers) – Production

• 0x-api-key (shared headers) - dev – Development

• Go to Plugins → 0x Crypto API

• Locate the Shared Headers section

• Paste your API key into:
• 0x-api-key (shared headers) for production
• 0x-api-key (shared headers) - dev for testing

Do not expose your API key in the frontend or client-side logic.

• Get Swap Price

• Get Swap Sources

• Get Order Books

• Get Order Book Orders

• Enter a token symbol (e.g. ETH, WETH, USDC)
or

• Enter the token’s contract address

• Enter a token symbol (e.g. DAI, USDT)
or

• Enter the token’s contract address

• Enter a numeric value

• Represents how much of the sell token you are trading

Larger amounts may affect price impact and routing.

• Drag a Group element onto the page

• Set Type of content and Data source:

• Buy amount

• Estimated price

• Liquidity sources

• Fees

• Route details

• Click Preview in the Bubble editor

• Confirm API responses return correctly

• Test with both dev and production keys

• Validate error handling for invalid swaps or insufficient liquidity

• Display swap prices and rates

• Estimate gas costs

• Preview swap outcomes before execution

• Prepare transaction payloads for wallets or smart contracts

json
{
  "chainId": "number",
  "price": "text",
  "guaranteedPrice": "text",
  "estimatedPriceImpact": "text",
  "to": "text",
  "data": "text",
  "value": "text",
  "gas": "text",
  "estimatedGas": "text",
  "gasPrice": "text",
  "protocolFee": "text",
  "minimumProtocolFee": "text",
  "buyTokenAddress": "text",
  "sellTokenAddress": "text",
  "buyAmount": "text",
  "sellAmount": "text",
  "sources": {
    "name": "text",
    "proportion": "text"
  },
  "orders": {
    "type": "number",
    "source": "text",
    "makerToken": "text",
    "takerToken": "text",
    "makerAmount": "text",
    "takerAmount": "text",
    "fillData router": "text",
    "fillData tokenAddressPath": "undefined",
    "fillData uniswapPath": "text",
    "fillData gasUsed": "number",
    "fill input": "text",
    "fill output": "text",
    "fill adjustedOutput": "text",
    "fill gas": "number",
    "sourcePathId": "text"
  },
  "allowanceTarget": "text",
  "decodedUniqueId": "text",
  "sellTokenToEthRate": "text",
  "buyTokenToEthRate": "text",
  "expectedSlippage": "text"
}

• Displaying live swap prices

• Showing estimated output amounts

• Comparing token rates

• Powering lightweight price preview UIs without preparing a transaction

json
{
  "chainId": "number",
  "price": "text",
  "estimatedPriceImpact": "text",
  "value": "text",
  "gasPrice": "text",
  "gas": "text",
  "estimatedGas": "text",
  "protocolFee": "text",
  "minimumProtocolFee": "text",
  "buyTokenAddress": "text",
  "buyAmount": "text",
  "sellTokenAddress": "text",
  "sellAmount": "text",
  "sources": {
    "name": "text",
    "proportion": "text"
  },
  "allowanceTarget": "text",
  "sellTokenToEthRate": "text",
  "buyTokenToEthRate": "text",
  "expectedSlippage": "text"
}

• Inspecting supported liquidity providers

• Debugging swap routing

• Displaying transparency information in DeFi dashboards

• Network-specific liquidity analysis

json
{
  "records": "undefined"
}

Note: This call does not require any input parameters.

• Building advanced trading interfaces

• Displaying market depth

• Analyzing supply and demand for a token pair

• Powering limit-order style UIs

json
{
  "bids total": "number",
  "bids page": "number",
  "bids perPage": "number",
  "bids records": {
    "order signature signatureType": "number",
    "order signature r": "text",
    "order signature s": "text",
    "order signature v": "number",
    "order sender": "text",
    "order maker": "text",
    "order taker": "text",
    "order takerTokenFeeAmount": "text",
    "order makerAmount": "text",
    "order takerAmount": "text",
    "order makerToken": "text",
    "order takerToken": "text",
    "order salt": "text",
    "order verifyingContract": "text",
    "order feeRecipient": "text",
    "order expiry": "text",
    "order chainId": "number",
    "order pool": "text",
    "metaData orderHash": "text",
    "metaData remainingFillableTakerAmount": "text",
    "metaData createdAt": "text"
  },
  "asks total": "number",
  "asks page": "number",
  "asks perPage": "number",
  "asks records": {
    "order signature signatureType": "number",
    "order signature r": "text",
    "order signature s": "text",
    "order signature v": "number",
    "order sender": "text",
    "order maker": "text",
    "order taker": "text",
    "order takerTokenFeeAmount": "text",
    "order makerAmount": "text",
    "order takerAmount": "text",
    "order makerToken": "text",
    "order takerToken": "text",
    "order salt": "text",
    "order verifyingContract": "text",
    "order feeRecipient": "text",
    "order expiry": "text",
    "order chainId": "number",
    "order pool": "text",
    "metaData orderHash": "text",
    "metaData remainingFillableTakerAmount": "text",
    "metaData createdAt": "text"
  }
}

• Fetching all active orders for a given token

• Building analytics dashboards

• Monitoring liquidity providers or makers

• Auditing open limit orders

json
{
  "total": "number",
  "page": "number",
  "perPage": "number",
  "records": {
    "order signature signatureType": "number",
    "order signature r": "text",
    "order signature s": "text",
    "order signature v": "number",
    "order sender": "text",
    "order maker": "text",
    "order taker": "text",
    "order takerTokenFeeAmount": "text",
    "order makerAmount": "text",
    "order takerAmount": "text",
    "order makerToken": "text",
    "order takerToken": "text",
    "order salt": "text",
    "order verifyingContract": "text",
    "order feeRecipient": "text",
    "order expiry": "text",
    "order chainId": "number",
    "order pool": "text",
    "metaData orderHash": "text",
    "metaData remainingFillableTakerAmount": "text",
    "metaData createdAt": "text"
  }
}

• Bubble Plugin Page Update (Logo).

• Marketing update (minor change).

• Minor update(Marketing update).

• Minor update (Marketing Update).

• Minor Update(Marketing Update).

• Minor Update(Marketing Update).

• Minor update (Marketing update).

• Minor update (Marketing update).

• Minor update .

• Updated demo/service links.

• updated description.

• Added api key to shared headers and added pagination for "OrderBook" call.

• Updated description.

• updated description.

• minor updates.

• updated description.

• Basic GET calls to 0x.