Circle, a financial technology company specializing in digital currencies and blockchain technologies, utilizes a REST API for its platform. REST (Representational State Transfer) is a widely adopted architectural style for designing networked applications.
Key characteristics of REST APIs:
Given Circle's focus on financial transactions, digital currencies, and blockchain technologies, a REST API would offer a straightforward and standardized way to interact with their services, allowing for CRUD (Create, Read, Update, Delete) operations on resources such as accounts, transactions, and balances.
Yes, the official Circle API does support webhooks. Webhooks are an automated method for apps to receive notifications the moment a transaction is completed or fails to complete. Instead of having your application continuously poll Circle to check if an operation has been completed on the blockchain, Circle will make a request to your application once the operation is finished. This automatic notification system ensures that your app receives real-time updates without needing to actively query Circle's servers.
Typically, financial and payment-related APIs offer webhooks for events such as:
Given the nature of Circle's operations, which involve digital currency transactions, it's reasonable to expect that their webhook system would cover a range of transactional events similar to those listed above. However, for precise details on the types of events you can subscribe to with Circle's API, it's essential to consult the official Circle API documentation or contact their support team directly.
To set up webhook subscriptions with Circle, you would typically follow these steps:
It's important to note that subscriptions in the sandbox environment are automatically removed after 30 days, so you may need to reconfigure them periodically during development and testing phases.
For detailed information on event types and how to implement webhook subscriptions with Circle's API, refer to the official Circle API documentation or reach out to their support team.
The Circle API implements rate limits to ensure optimum performance, availability, stability, and reliability of its Web3 Services. These rate limits apply per second (RPS) per developer entity. The default limit across all Programmable Wallets APIs is set at 5 requests per second. However, certain endpoints have custom rate limits as follows:
/v1/w3s/developer/wallets: 10 RPS/v1/w3s/transactions/transfer/estimateFee: 10 RPS/v1/w3s/transactions/contractExecution/estimateFee: 10 RPS/v1/w3s/users/token: 10 RPS/v1/w3s/user/sign/transaction: 10 RPSThese limits are designed to manage the load on Circle's Web3 Services effectively, ensuring that the platform remains responsive and reliable for all users. Developers integrating with the Circle API should design their applications to stay within these rate limits to avoid disruptions in service.
Based on the information provided, the most recent version of the Circle API mentioned across the sources is API v2 from CircleCI. This version introduces several new features and improvements over the previous API v1.1, including support for pipelines and pipeline parameters, among others. It's important to note that CircleCI recommends migrating scripts to API v2 stable endpoints as soon as possible, indicating that API v2 is the current focus for development and support.
Key points to consider regarding CircleCI API v2 include:
Circle-Token.It's recommended to refer to the official CircleCI API v2 Reference Guide for a comprehensive list of endpoints, required and optional parameters, HTTP status and error codes, and code samples to effectively utilize the API in your workflows.
Go to the Circle Developer signup page at console.circle.com/signup.
Enter your name, email address, and create a password to sign up for a free Circle Developer account.
Once signed up, you'll have access to the Circle Developer dashboard where you can manage API keys, subscribe to notifications, view API logs, and more.
Log in to your Circle Developer account.
Navigate to the "API Keys" section in the left sidebar.
Click on "CREATE A KEY".
Enter a name for your API key.
Choose the type of API key:
For restricted keys, select the products/services and permission levels (No permission, Read, or Read/Write).
Generate and securely store your API key.
Based on the information provided, the Circle API enables interaction with various data models to facilitate programmable wallet operations, infrastructure management, and integration with blockchain technologies. Here's a breakdown of the capabilities associated with each data model mentioned in the sources:
Programmable Wallets: Allows for the creation and management of wallets that can execute transactions on supported blockchains. This includes sending and receiving cryptocurrencies, interacting with smart contracts, and managing wallet balances.
Wallet Signing Service: Provides functionality for securely signing transactions and messages. This service ensures that transactions are valid and authorized by the wallet owner before they are broadcasted to the blockchain network.
Infrastructure Models: Offers tools and services for building blockchain infrastructure. This can include services for deploying smart contracts, managing blockchain nodes, and interacting with decentralized applications (DApps).
Account Type: Likely refers to managing different types of accounts within the Circle ecosystem, including user accounts, merchant accounts, and possibly smart contract accounts. This could involve operations such as account creation, balance inquiries, and transaction history retrieval.
Smart Contract Platform: Enables interaction with smart contracts deployed on supported blockchains. This includes deploying new contracts, calling contract functions, and querying contract state. Smart contracts are self-executing contracts with the terms of the agreement directly written into code.
Gas Station: Manages gas fees associated with transactions on blockchain networks. This service might help optimize gas costs, manage gas price fluctuations, and ensure timely execution of transactions.
Circle Access Network (Beta): Although details are sparse, this likely involves services for accessing Circle's network features, possibly including API access management, rate limiting, and authentication services.
Supported Blockchains and Currencies: Provides information and tools related to the blockchains and cryptocurrencies supported by Circle's Web3 Services. This could include details on transaction formats, network compatibility, and currency conversion rates.
Each of these data models serves a unique purpose within the Circle API ecosystem, enabling developers to build complex applications that leverage blockchain technology for payments, digital asset management, and decentralized finance (DeFi) solutions.
