Enable Swaps

Configure Swaps once on your parent organization: set your fee and the wallet account that collects it. ACTIVITY_TYPE_UPSERT_SWAP_CONFIG is a parent-organization activity that writes your swap configuration — your fee rates and the wallet account that receives fees. Submitting this activity is required to charge and claim the client fee; quotes and swaps work without it, with a client fee of 0.

Swaps is currently an Early Access Product. Contact us to enable it for your organization.

Prerequisites

You submit the activity against the parent organization. Submissions from sub-organizations will fail.
You have an EVM wallet account in the parent organization to receive fees. Fees are paid in USDC on Base regardless of which chains your swaps occur on, so a single receiving account covers all swap volume.
You’ve decided your fee rate in basis points. See Choose your fee configuration.

Submit the configuration

Submit an ACTIVITY_TYPE_UPSERT_SWAP_CONFIG activity with:

feeReceiverWalletAddress — an EVM address owned by your parent organization, including private key accounts. Optional: if feeBps is set and this is omitted, Turnkey auto-generates a parent HD wallet to receive fees.
feeBps — your fee in basis points, as a stringified integer (e.g. "50" for 0.5%). Must be between 0% and 5%; values above the cap will fail.
stableFeeBps — optional; Enterprise plans only. A separate fee applied when both assets carry the stable flag in list_supported_assets. Omit to charge feeBps on every swap.

Example request (cURL):

cURL

curl --request POST \
  --url https://api.turnkey.com/public/v1/submit/upsert_swap_config \
  --header 'Accept: application/json' \
  --header 'Content-Type: application/json' \
  --header "X-Stamp: <string> (see Stamps)" \
  --data '{
    "type": "ACTIVITY_TYPE_UPSERT_SWAP_CONFIG",
    "timestampMs": "<string> (e.g. 1745474677453)",
    "organizationId": "<PARENT_ORGANIZATION_ID>",
    "parameters": {
      "feeReceiverWalletAddress": "<WALLET_ADDRESS>",
      "feeBps": "50"
    }
  }'

Example request (JavaScript):

JavaScript

import { TurnkeyClient } from "@turnkey/http";
import { ApiKeyStamper } from "@turnkey/api-key-stamper";
const client = new TurnkeyClient(
  { baseUrl: "https://api.turnkey.com" },
  new ApiKeyStamper({
    apiPublicKey: process.env.TURNKEY_API_PUBLIC_KEY,
    apiPrivateKey: process.env.TURNKEY_API_PRIVATE_KEY,
  }),
);
const { activity } = await client.request("/public/v1/submit/upsert_swap_config", {
  type: "ACTIVITY_TYPE_UPSERT_SWAP_CONFIG",
  timestampMs: String(Date.now()),
  organizationId: "<PARENT_ORGANIZATION_ID>",
  parameters: {
    feeReceiverWalletAddress: "<WALLET_ADDRESS>",
    feeBps: "50",
  },
});

Response:

{
  "activity": {
    "id": "<ACTIVITY_ID>",
    "status": "ACTIVITY_STATUS_COMPLETED",
    "type": "ACTIVITY_TYPE_UPSERT_SWAP_CONFIG",
    "result": {
      "upsertSwapConfigResult": {
        "feeReceiverWalletAddress": "<WALLET_ADDRESS>",
        "feeBps": "50",
        "stableFeeBps": "10"
      }
    }
  }
}

The result echoes the applied configuration as upsertSwapConfigResult. If no feeReceiverWalletAddress was provided and one was auto-generated, the result will reflect the generated address.

Choose your fee configuration

Your fee applies to every swap under your parent organization — submitted by the parent or any sub-organization. Sub-organizations cannot override it. When choosing your rates:

Cap. feeBps and stableFeeBps must not exceed 500 bps; values above the cap will fail.
Your fee stacks on Turnkey’s. Turnkey’s fee is baked into every quote (see Fees), so the spread your user experiences is Turnkey’s rate plus yours. Quotes always show the net result — outputAmount reflects both.
Stablepairs are rate-sensitive. Stable-to-stable swaps are economically tight; a fee that’s reasonable on a volatile pair can exceed the entire spread on a stablepair. If you’re on an Enterprise plan, you’re able to configure lower fees for stablepair trades if that makes sense in the context of your app.
Fee currency and destination. All of your fees accrue in USDC on Base to your configured feeReceiverWalletAddress, regardless of swap chains or assets — one receiving account, one asset, no in-kind fee management.

Fee changes apply to new quotes only; in-flight quotes settle at the fee baked into them.

Change your fee configuration

Configuration changes go through the same ACTIVITY_TYPE_UPSERT_SWAP_CONFIG activity — submit again with the updated feeBps, feeReceiverWalletAddress, or stableFeeBps. There is no separate update activity; each submission replaces the active configuration. Quotes requested after the change use the new configuration immediately. Executing a quote settles at the fee baked into that quote, so an in-flight quote followed by an execute settles at quote-time economics — fee changes never alter what a user has already signed.

Next steps

Get a quote — fee-aware indicative pricing for display and selection
Execute a swap — the signing activity that runs the swap end-to-end

Get started

Features

Reference

Prerequisites

Submit the configuration

Choose your fee configuration

Change your fee configuration

Next steps

​Prerequisites

​Submit the configuration

​Choose your fee configuration

​Change your fee configuration

​Next steps

Prerequisites

Submit the configuration

Choose your fee configuration

Change your fee configuration

Next steps