🔌API Reference
API Reference for Secured Finance protocols
Secured Finance provides GraphQL APIs via The Graph protocol to query data from our smart contracts. This section documents how to use these APIs to access data from our protocols.
What You'll Learn
How to query data from the Fixed-Rate Lending protocol
Examples of common queries and their responses
How to use GraphQL to build custom queries
How to use our interactive API documentation with "Test It" functionality
Key Components
Subgraphs
Secured Finance maintains subgraphs for its protocols:
Fixed-Rate Lending Subgraph - For querying data from the Fixed-Rate Lending protocol
Note: The USDFC Subgraph is currently under development and not yet deployed. USDFC data is only available through the USDFC SDK.
Available Networks
Our subgraphs are deployed on the following networks:
Fixed-Rate Lending
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Note: The USDFC Subgraph is currently under development and not yet deployed. USDFC data is only available through the USDFC SDK on the Filecoin network.
Subgraph Endpoints
These are Subgraph endpoint URLs for our production Mainnet and Testnet environments. You can click the URL and try some queries on the GraphQL playground.
Fixed-Rate Lending Subgraph
Ethereum
Arbitrum
Filecoin
Note: The Filecoin Calibration testnet endpoints are not provided yet.
Getting Started
If you're new to GraphQL or The Graph, check out our introduction to subgraphs in the next sections. If you're already familiar with these technologies, you can jump directly to the specific subgraph documentation.
The Graph is a decentralized protocol for indexing and querying blockchain data, making it easier to query the difficult-to-read data stored on the blockchain. The Graph's decentralized approach ensures resilience, eliminating the need for centralized and resource-intensive alternatives.
To view the source of our subgraphs, visit our GitHub Repository.
Interactive API Documentation
We provide interactive API documentation for our Fixed-Rate Lending Subgraph using GitBook's OpenAPI integration. This allows you to explore and test the API directly from the documentation page in real-time.
The interactive documentation above allows you to:
Explore available endpoints and operations
View request and response schemas
Try out API calls directly from the documentation using the "Test It" feature
See example queries and responses
Using the Interactive Documentation
Browse through the available operations
Click on an operation to expand it
View the request parameters and example values
Click "Test It" to execute a request against the selected server
View the response directly in the documentation
For more complex queries, you can also use The Graph's Playground interface by visiting the subgraph endpoints directly.
Related Resources
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