# Sample Midpoints

- [Filecoin Filrep Oracle: Obtain miner reputations on-chain](/midpoint-documentation/get-started/sample-midpoints/filecoin-filrep-oracle-obtain-miner-reputations-on-chain.md)
- [Oracle: Call any API from a smart contract](/midpoint-documentation/get-started/sample-midpoints/oracle-call-any-api-from-a-smart-contract.md)
- [Listener: Subscribe an internal service to any event](/midpoint-documentation/get-started/sample-midpoints/listener-subscribe-an-internal-service-to-any-event.md)
- [Data Feed: Stream a data feed on-chain at regular intervals](/midpoint-documentation/get-started/sample-midpoints/data-feed-stream-a-data-feed-on-chain-at-regular-intervals.md)
- [Data Bridge: Pass arbitrary messages between chains](/midpoint-documentation/get-started/sample-midpoints/data-bridge-pass-arbitrary-messages-between-chains.md)
- [Automation: Ensure a function is called at regular intervals](/midpoint-documentation/get-started/sample-midpoints/automation-ensure-a-function-is-called-at-regular-intervals.md)