Swap one token for another inside an Earn Account.
Exchanges tokens the Earn Account already holds in a single atomic
transaction, so funds never leave it, and can be chained with other actions
through the bundle endpoint
(for example, swap ETH to USDC and deposit the USDC into a vault at once).
Returns an unsigned transaction to sign and the expected output amount.
POST
/
v2
/
earn
/
swap
Python (SDK)
from compass_api_sdk import CompassAPI, modelswith CompassAPI( api_key_auth="<YOUR_API_KEY_HERE>",) as compass_api: res = compass_api.earn.earn_swap(token_in="USDC", token_out="USDT", amount_in="0.01", owner="0x06A9aF046187895AcFc7258450B15397CAc67400", chain=models.EarnSwapRequestChain.BASE, slippage="0.5", gas_sponsorship=False, pricing=models.EarnSwapRequestPricing.AUTO) # Handle response print(res)
Optionally request gas sponsorship. If true, EIP-712 typed data will be returned that must be signed by the owner and submitted to the 'Prepare gas-sponsored transaction' endpoint (/gas_sponsorship/prepare). Firm-priced builds may be sponsored: the sponsor must broadcast before quote_expires_at.
Swap routing policy. 'auto': on chains with a market route the swap is priced by the market aggregator and bounded by slippage (the default behaviour); on HyperEVM, where only firm pricing is available, it is a firm zero-slippage quote that fills exactly or reverts. 'firm': always a firm quote; refused with a typed 409 when no firm quote covers the pair right now, never silently priced at market. 'market': always the market route; refused with 422 on HyperEVM. Read swap_provider on the response for the route that actually priced the build, and quote_expires_at for a firm quote's deadline.
Estimated amount of output token received from the swap. Exact on firm builds (a firm quote fills at this amount or reverts); a quote-time estimate on market builds, where slippage sets how far below it the enforced minimum output sits.
Which route priced the swap. 'market': a DEX aggregator, slippage-bounded. 'firm': a zero-slippage quote that fills exactly or reverts. Always present; this is the authoritative signal, since pricing is only what was requested.
Deadline of the firm swap quote. The transaction (or the sponsor's broadcast of the signed typed data) must be included before it or the swap reverts on-chain; refresh by re-calling this endpoint and discarding the previous payload. Null on market builds.
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Null on market builds.","uniqueKey":"quote_expires_at.oneOf.1","typeLabel":"null"}],"uniqueKey":"quote_expires_at","typeLabel":"string\u003cdate-time> | null"}},"type":"object","required":["estimated_amount_out"],"title":"EarnSwapResponse","example":{"estimated_amount_out":"2485.123456","swap_provider":"market","transaction":{"chainId":"0x2105","data":"0x8d80ff0a0000000000000000000000000000000000000000000000000000000000000020","from":"0x4A83b4413CF41C3244027e1590E35a0F48403F0c","gas":"0x7a120","maxFeePerGas":"0x59682f00","maxPriorityFeePerGas":"0x3b9aca00","nonce":"0x5","to":"0x6B90E8B4E3E971E74C1A47a3a20976377E2dB4b1","value":"0x0"}},"uniqueKey":"","typeLabel":"EarnSwapResponse · object"},"examples":{"Example":{"title":"Example","value":{"estimated_amount_out":"2485.123456","swap_provider":"market","transaction":{"chainId":"0x2105","data":"0x8d80ff0a0000000000000000000000000000000000000000000000000000000000000020","from":"0x4A83b4413CF41C3244027e1590E35a0F48403F0c","gas":"0x7a120","maxFeePerGas":"0x59682f00","maxPriorityFeePerGas":"0x3b9aca00","nonce":"0x5","to":"0x6B90E8B4E3E971E74C1A47a3a20976377E2dB4b1","value":"0x0"}}}},"exampleType":"generated"}},"exampleType":"generated"},"d35f8fa6-86c4-44dc-9229-de52893d3ec8":{"description":"Validation Error","content":{"application/json":{"schema":{"properties":{"detail":{"items":{"properties":{"loc":{"items":{"oneOf":[{"type":"string","uniqueKey":"detail.items.[INDEX].loc.items.[INDEX].oneOf.0","typeLabel":"string"},{"type":"integer","uniqueKey":"detail.items.[INDEX].loc.items.[INDEX].oneOf.1","typeLabel":"integer"}],"uniqueKey":"detail.items.[INDEX].loc.items.[INDEX]","typeLabel":"string | integer"},"type":"array","title":"Location","isRequired":true,"uniqueKey":"detail.items.[INDEX].loc","typeLabel":"(string | integer)[]"},"msg":{"type":"string","title":"Message","isRequired":true,"uniqueKey":"detail.items.[INDEX].msg","typeLabel":"string"},"type":{"type":"string","title":"Error Type","isRequired":true,"uniqueKey":"detail.items.[INDEX].type","typeLabel":"string"}},"type":"object","required":["loc","msg","type"],"title":"ValidationError","uniqueKey":"detail.items.[INDEX]","typeLabel":"ValidationError · object"},"type":"array","title":"Detail","uniqueKey":"detail","typeLabel":"ValidationError · object[]"}},"type":"object","title":"HTTPValidationError","uniqueKey":"","typeLabel":"HTTPValidationError · object"},"examples":{"Example":{"title":"Example","value":{"detail":[{"loc":["\u003cstring>"],"msg":"\u003cstring>","type":"\u003cstring>"}]}}},"exampleType":"generated"}},"exampleType":"generated"}},"security":{"2b04347a-2a38-49d3-af56-889e7b086a78":{"ApiKeyAuth":{"type":"apiKey","in":"header","name":"x-api-key","description":"Your Compass API Key. 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Use `WITHDRAW` to move tokens back from a venue into the Earn Account.\n\n**Venue types:**\n- `VAULT`: ERC-4626 vaults (see [/vaults](https://docs.compasslabs.ai/v2/api-reference/earn/list-vaults) for available options)\n- `AAVE`: Aave lending pools (see [/aave_markets](https://docs.compasslabs.ai/v2/api-reference/earn/list-aave-markets) for available options)\n- `PENDLE_PT`: Pendle Principal Tokens (see [/pendle_markets](https://docs.compasslabs.ai/v2/api-reference/earn/list-pendle-markets) for available options)\n- `MAPLE`: Maple syrup pools on Ethereum, syrupUSDC and syrupUSDT (see [/maple_pools](https://docs.compasslabs.ai/v2/api-reference/earn/list-maple-pools)). Deposits mint shares directly from Maple at the pool exchange rate; the Earn Account is authorized with Maple automatically on its first deposit. Withdrawals are **asynchronous**: the response has `settlement: \"async\"`, and the asset arrives in the Earn Account when Maple processes its withdrawal queue (typically within minutes, at most 30 days). Fees are not supported on MAPLE withdrawals. To exit immediately at market price, use [/swap](https://docs.compasslabs.ai/v2/api-reference/earn/swap-tokens).\n\n**Fees:** A fee can be configured and deducted from the transaction amount (not supported for PENDLE_PT):\n- `FIXED`: A fixed token amount (e.g., 0.1 means 0.1 tokens)\n- `PERCENTAGE`: A percentage of the amount (e.g., 1.5 means 1.5%)\n- `PERFORMANCE`: A percentage of realized profit (withdrawals only)\n\n**Gas sponsorship:** Set `gas_sponsorship=true` to receive EIP-712 typed data. Owner signs the typed data, then submit to [/gas_sponsorship/prepare](https://docs.compasslabs.ai/v2/api-reference/gas-sponsorship/prepare-gas-sponsored-transaction).","deprecated":null,"version":null,"openapi":"/v2/combined_spec.json post /v2/earn/manage","href":"/v2/api-reference/earn/manage-earn-position"},{"title":"Swap tokens","deprecated":null,"version":null,"openapi":"/v2/combined_spec.json post /v2/earn/swap","href":"/v2/api-reference/earn/swap-tokens"},{"title":"Execute multiple earn actions","description":"Combine multiple actions into a single atomic transaction.\n\nBundle swaps and venue deposits/withdrawals into one transaction executed through the Earn Account. This saves gas compared to executing actions separately and ensures all actions succeed or fail together.\n\n**Example:** Swap AUSD to USDC, then deposit USDC into a vault - all in one transaction.\n\n**Fees:** Manage actions (deposits/withdrawals) support optional fee configuration, same as the standalone manage endpoint.\n\n**Gas sponsorship:** Set `gas_sponsorship=true` to receive EIP-712 typed data. Owner signs the typed data, then submit to [/gas_sponsorship/prepare](https://docs.compasslabs.ai/v2/api-reference/gas-sponsorship/prepare-gas-sponsored-transaction).","deprecated":null,"version":null,"openapi":"/v2/combined_spec.json post /v2/earn/bundle","href":"/v2/api-reference/earn/execute-multiple-earn-actions"}]},{"group":"Bridge","pages":[{"title":"Initiate USDC bridging","deprecated":null,"version":null,"openapi":"/v2/combined_spec.json post /v2/cctp/burn","href":"/v2/api-reference/bridge/initiate-usdc-bridging"},{"title":"Complete USDC bridging","deprecated":null,"version":null,"openapi":"/v2/combined_spec.json post /v2/cctp/mint","href":"/v2/api-reference/bridge/complete-usdc-bridging"}]},{"group":"Credit","pages":[{"title":"List credit positions","deprecated":null,"version":null,"openapi":"/v2/combined_spec.json get /v2/credit/positions","href":"/v2/api-reference/credit/list-credit-positions"},{"title":"Get credit account token 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account","deprecated":null,"version":null,"openapi":"/v2/combined_spec.json post /v2/credit/create_account","href":"/v2/api-reference/credit/create-credit-account"},{"title":"Borrow against collateral","deprecated":null,"version":null,"openapi":"/v2/combined_spec.json post /v2/credit/borrow","href":"/v2/api-reference/credit/borrow-against-collateral"},{"title":"Open a leveraged loop","deprecated":null,"version":null,"openapi":"/v2/combined_spec.json post /v2/credit/loop","href":"/v2/api-reference/credit/open-a-leveraged-loop"},{"title":"Unwind a leveraged loop","deprecated":null,"version":null,"openapi":"/v2/combined_spec.json post /v2/credit/unloop","href":"/v2/api-reference/credit/unwind-a-leveraged-loop"},{"title":"Rebalance the leveraged credit book","deprecated":null,"version":null,"openapi":"/v2/combined_spec.json post /v2/credit/rebalance","href":"/v2/api-reference/credit/rebalance-the-leveraged-credit-book"},{"title":"Transfer tokens to/from Credit 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/v2/perpetual_trading/opportunities","href":"/v2/api-reference/perpetual-trading/list-perpetual-trading-markets"},{"title":"List perpetual trading positions","deprecated":null,"version":null,"openapi":"/v2/combined_spec.json get /v2/perpetual_trading/positions","href":"/v2/api-reference/perpetual-trading/list-perpetual-trading-positions"},{"title":"Get OHLCV candles","deprecated":null,"version":null,"openapi":"/v2/combined_spec.json get /v2/perpetual_trading/candles","href":"/v2/api-reference/perpetual-trading/get-ohlcv-candles"},{"title":"Aggregated Hyperliquid activity for a user","deprecated":null,"version":null,"openapi":"/v2/combined_spec.json get /v2/perpetual_trading/activity","href":"/v2/api-reference/perpetual-trading/aggregated-hyperliquid-activity-for-a-user"},{"title":"Deposit USDC to perpetual trading account","deprecated":null,"version":null,"openapi":"/v2/combined_spec.json post /v2/perpetual_trading/deposit","href":"/v2/api-reference/perpetual-trading/deposit-usdc-to-perpetual-trading-account"},{"title":"Build the Bridge2 deposit tx from a signed permit","deprecated":null,"version":null,"openapi":"/v2/combined_spec.json post /v2/perpetual_trading/deposit/sponsor_prepare","href":"/v2/api-reference/perpetual-trading/build-the-bridge2-deposit-tx-from-a-signed-permit"},{"title":"Withdraw USDC from perpetual trading account","deprecated":null,"version":null,"openapi":"/v2/combined_spec.json post /v2/perpetual_trading/withdraw","href":"/v2/api-reference/perpetual-trading/withdraw-usdc-from-perpetual-trading-account"},{"title":"Place market order","deprecated":null,"version":null,"openapi":"/v2/combined_spec.json post /v2/perpetual_trading/market_order","href":"/v2/api-reference/perpetual-trading/place-market-order"},{"title":"Place limit order","deprecated":null,"version":null,"openapi":"/v2/combined_spec.json post 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