Technical FAQ
Questions frequently asked by developers
- Intermediate tokens (Why do I received different asset)
- What is the LI.FI API rate limit?
- Can a transfer result in stuck or lost funds?
- How can I integrate cross-Chain Payments x402 for AI Agents
- /connections endpoint returning connections, when no route is returned by /quote or /routes
- Response time /quote &/routes endpoints
- API requests no longer works - CORS policy issue
- Where/How can I withdraw the collected fees ?
- Widget related FAQ to assist you
- Analysis of our smart contract transactions
- How do I use the API endpoints and interprete the responses?
- I recently integrated the LI.FI Widget. Why do I see less routes on the widget as compared to Jumper.Exchange?
- Can I simulate a call with the calldata returned from https://li.quest/v1/quote/contractCall e.g. in Tenderly? Should I suppose to use the Executor contract & where to get the exact parameters for swapAndExecute or swapAndCompleteBridgeTokens ?
- Is the difference between toAmount and toAmountMin purely based on the slippage and if this is the case which is the default slippage when calling /quote route?
- How can I find get approve tx data and check for allowance?
- Can you share some insight on the fees structure of using LI.FI for a DApp?
- Who pays for gas cost on the source and destination chains?
- How to call the LI.FI contract from another contract?
- We want to decode the callData returned by LI.FI SDK/API to assert or verify that the parameters like toAddress, etc., are correct.
- Where can I view the facets deployment addresses?
- How does slippage and toMinAmount works in routes with multistep transaction?
- Are cross-chain swaps atomic?
- Is there a way to force only one-step routes?
- I want to set up my account and start charging fees, how do I do that? How can I monetize ?
- How can I test my integration with your protocol API , Widget ,SDK via Testnets?
- I can't find my token. How can I get LI.FI to support my token?
- What are the issues we might face with each of the bridges? What can possibly go wrong?
- Is the final token going to be a synthetic token that usually gets swapped (e.g. anyUSDC) or is it a canonical token?
- Fail with error 'Return amount is not enough'
- Why is there sometimes a large difference between the source funds and the final swap?