Oracle “Functionally.IO” on the Cardano Mainnet

The oracle “Functionally.IO” publishes to the Cardano blockchain’s Mainnet.

• Metadata keys:
  • 247427: Secured Overnight Financing (SOFR)
  • 247426: Energy Prices
• Cardano address: addr1qy9prvx8ufwutkwxx9cmmuuajaqmjqwujqlp9d8pvg6gupcvluken35ncjnu0puetf5jvttedkze02d5kf890kquh60sut9jg7.
• Example transaction: 919692a37ee31d65de4b7e16b30fefefb5e298ce25aee7e41b7424c56c8b4d48.
• GraphQL query via cURL:

  curl 'https://graphql-api.mainnet.dandelion.link/' -H 'Content-Type: application/json' -H 'Accept: application/json' \
      --data-binary '{"query":"query fmMetadata{transactions(where:{metadata:{key:{_in:[\"247426\",\"247427\"]}}}){metadata{key value}}}"}'

• Oracle metadata: [JSON] [hash] [txn].
• Source code: https://github.com/functionally/mantis.functionally.io/.
• This service runs so long as the aforementioned address has a balance of at least 2 ADA; each transaction has a net cost of approximately 0.275 ADA.
• Contact: mantis@functionally.io.

Secured Overnight Financing (SOFR)

This oracle publishes the secured overnight financing (SOFR) rate each weekday, with spot rates for the US Federal Reserve, and futures rates for the CME.

Datapoints

Technical Details

• Transaction metadata key: 247427.
• JSON schema.
• Data source:
  • Spot prices: Federal Reserve Bank of New York Secured Overnight Financing Rate Data.
  • Futures: Yahoo Finance on RapidAPI
• Data archived in IPFS: [JSON].

Energy Prices

This oracle publishes energy prices in the United States each weekday, scraped from the US Energy Information Administration’s Daily Prices page.

Datapoints

Technical Details

• Transaction metadata key: 247426.
• JSON schema.
• Data source: US Energy Information Administration, Today in Energy, Daily Prices.
• Data archived in IPFS: [HTML] [JSON].