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POST
/
v1
/
wallets
/
{wallet_id}
/
swap
/
quote
Get Swap Quote
curl --request POST \
  --url https://api.privy.io/v1/wallets/{wallet_id}/swap/quote \
  --header 'Authorization: Basic <encoded-value>' \
  --header 'Content-Type: application/json' \
  --header 'privy-app-id: <privy-app-id>' \
  --data '
{
  "base_amount": "1000000000000000000",
  "amount_type": "exact_input",
  "source": {
    "asset_address": "native",
    "caip2": "eip155:1"
  },
  "destination": {
    "asset_address": "0xA0b86991c6218b36c1d19D4a2e9Eb0cE3606eB48",
    "caip2": "eip155:1"
  }
}
'
{
  "caip2": "eip155:1",
  "input_token": "native",
  "output_token": "0xA0b86991c6218b36c1d19D4a2e9Eb0cE3606eB48",
  "input_amount": "1000000000000000000",
  "est_output_amount": "2000000000",
  "minimum_output_amount": "1980000000",
  "gas_estimate": "150000"
}

​
Prerequisites

Swap quotes reflect real-time market conditions and can change quickly. Fetch a fresh quote before executing a swap to ensure your app displays accurate pricing.

Authorizations

​
Authorization
string
header
required

Basic Auth header with your app ID as the username and your app secret as the password.

Headers

​
privy-app-id
string
required

ID of your Privy app.

​
privy-authorization-signature
string

Request authorization signature. If multiple signatures are required, they should be comma separated.

Path Parameters

​
wallet_id
string
required

ID of the wallet.

Body

application/json

Input for requesting a token swap quote.

​
base_amount
string
required

Amount in base units (e.g., wei for ETH). Must be a non-negative integer string.

Required string length: 1 - 78
Pattern: ^\d+$
​
source
SwapSource · object
required

The input side of a swap request, including token and chain.

​
destination
SwapQuoteDestination · object
required

The output side of a swap quote request.

​
amount_type
enum<string>
default:exact_input

Whether the amount refers to the input token (exact_input) or output token (exact_output).

Available options:
exact_input,
exact_output
​
slippage_bps
integer

Maximum slippage tolerance in basis points (e.g., 50 for 0.5%). If omitted, auto-slippage is used.

Required range: 0 <= x <= 10000
​
fee_configuration
FeeConfiguration · object

Optional fee configuration for the swap. If omitted, cross-chain swaps will not charge additional fees.

Example:
{ "type": "total_fee_bps", "value": 50 }

Response

200 - application/json

Swap quote retrieved successfully.

Pricing data for a token swap.

​
caip2
string
required

Chain identifier.

​
input_token
string
required

Token address being sold.

​
output_token
string
required

Token address being bought.

​
input_amount
string
required

Amount of input token in base units.

​
est_output_amount
string
required

Estimated amount of output token in base units.

​
minimum_output_amount
string
required

Minimum output amount accounting for slippage, in base units.

​
gas_estimate
string
required

Estimated gas cost in base units of the native token. @deprecated For cross-chain swaps, use estimated_gas instead.

​
destination_caip2
string

Destination chain CAIP-2 identifier for cross-chain swaps.

​
estimated_fees
(RelayerFee · object | PrivyFee · object | DeveloperFee · object)[]

Estimated fees for the swap. Only present for cross-chain swaps.

Estimated fee paid to the relayer.

Example:
{
  "type": "privy",
  "recipient": "0x1234567890abcdef1234567890abcdef12345678",
  "amount": "0.20"
}
​
estimated_gas
Gas · object

Estimated gas cost with full token metadata. Only present for cross-chain swaps.

Example:
{
  "base_amount": "100000000000000",
  "amount": "0.0001",
  "gas_asset": "ETH"
}
​
expires_at
number

Quote expiry as Unix timestamp (seconds). Present for cross-chain quotes.