Use the ChangeHero API and embeddable widget to add instant crypto swaps to your product. Wallet-to-wallet exchange with no account creation, built for automated swaps.
Access API and Widget DetailsA crypto swap API provides a programmatic interface for automated wallet-to-wallet exchange between supported assets such as BTC, ETH, and USDT. In a typical request flow, a client specifies the source asset, target asset, amount, and destination address; the API then returns the quoted exchange parameters and coordinates the on-chain or cross-chain transfer. Rate models differ in how they define the agreement: a crypto swap API supports both fixed rate, where the quoted exchange rate remains constant for the transaction window, and floating rate, where the rate adjusts in response to market conditions until execution. Integration of the API allows developers to embed swap functionality directly into an application, and the non-custodial architecture generally operates without requiring user accounts or KYC procedures, focusing on the technical framework, endpoint authentication, and process flow. A widget built via documented patterns offers adjustable parameters and callback handling for reaction to quote updates. Developers can follow integration guides to connect supported wallet types and define rate mode preferences. This enables a consistent swap experience inside US-oriented applications without centralized account systems.
Funds remain in user wallets during transactions within the integration's structure.
Direct asset movements between external wallets through API-connected interfaces.
Modules for standard chain contract variants conversion via swap widgets.
Configurable widgets for third-party platforms and API for automated operations.
ChangeHero develops API access and embeddable widget solutions that support automated swapping of digital assets. The focus is on infrastructure that enables third-party platforms and developers to offer swap crypto without account by routing wallet to wallet crypto swap via non custodial crypto swap endpoints. Configuration options for fixed rate vs floating rate crypto swap requests through its API. The embeddable widgets provide a method for managing instant cryptocurrency exchange directly from crypto swap no more dynamic top containers such as on exodus: an option that may help display as exodus wallet alternatively is described perhaps if looking to bring cryptocurrency no KYC where allowed during usage requiring code specific with whether necessary KYC in this America. There's USDT to Convert using External: units that convert plus direct models here after listing structures at usage? These tools offered purely as information frameworks and processes supplied by services based APIs tools but this; not endorsed nor claims.
Register for ChangeHero service, obtain API credentials, and configure access permissions.
Set up API endpoints for non custodial crypto swap, specifying pair such as USDT to BTC and rate type.
Customize and embed crypto swap widget on your site, adjusting design to match your brand.
Initiate instant crypto exchange via API, with results depending on network conditions and wallet compatibility.
I use the widget in a side project, and embedding it was straightforward. It handles wallet to wallet crypto swap flows, which fits the non custodial crypto swap approach I was looking for. Setup steps may differ across environments.
The crypto swap API covers USDT TRC20 to BTC requests. My configuration required some additional verification of endpoint behavior. The non custodial nature is the part I reference most often when describing the integration approach.
From a developer standpoint, the documentation structures API calls clearly. Attempting a swap crypto without account flow through the widget worked in my sandbox. Experience depends on file formatting and processing conditions.
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