| API Name | Feature | Frequency Limit (maximum requests per second) |
|---|---|---|
| DescribeFabricBlock | Retrieve detailed information of a Fabric block | 20 |
| DescribeFabricTransaction | Retrieve detailed information of a Fabric transaction | 20 |
| InvokeFabricChaincode | Calls a Fabric user contract to execute a transaction | 20 |
| QueryFabricChaincode | Calls the Fabric user contract to query | 20 |
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