Available feeds
Currently, Orcfax provides support for CER type feeds. Integrators may review the full list of available feeds for both mainnet and preview.
Current Exchange Rate feeds
Current Exchange Rate (CER) feeds publish statements relating to the current price of a given currency against another. Feeds of this type include ADA-USD and FACT-ADA.
For a feed of type CER, the naming convention is {{base-currency}}-{{quote-currency}}.
- crypto-fiat: ADA-USD
- crypto-stable: ADA-iUSD
- crypto and another native asset: FACT-ADA
The price values published by these feeds are derived from centralized exchange (CEX) data or decentralized exchange (DEX) data.
For CEX based feeds, fiat currency names follow ISO 4217 and ordering follows forex conventions where applicable. In all other cases, ordering defers to how pairs appear on the centralized or decentralized exchanges.
The Glossary provides more information on the terminology and standard adopted by Orcfax.
Subsidized feeds
There are feeds which Orcfax has identified for their broad utility across Cardano projects and has therefore committed to supporting their publication in order to aid in development initiatives. These feeds have been selected in an effort to provide developers with opportunities to design their solutions from the beginning with authentic and verifiable data as a foundation.
A subsidized feed is one which Orcfax has committed to maintaining even without a sponsor.
Orcfax is currently offering the following subsidized feeds:
| Feed name | Start Date | End date |
|---|---|---|
| ADA-USD | Sep 12th 2024 17:01:24 UTC | TBA |
| FACT-ADA | Sep 12th 2024 17:01:24 UTC | TBA |
when an integrator activates a subscription for a subsidized feed it will no longer be identified as such and will instead be labeled a sponsored feed.
Sunsetting subsidized feeds
In contrast to showcase feeds, subsidized feeds can be used in production because Orcfax has agreed to cover the cost of their support.
While Orcfax has committed to maintaining access to these feeds, integrators who wish to utilize these feeds without a subscription should do so at their own risk; Orcfax still reserves the right to adjust or remove support for these feeds as business needs dictate. Orcfax has agreed to cover the cost of supporting subsidized feeds enabling them to be used in production. Changes to services relating to subsidized feeds will be announced three months in advance to provide integrators with adequate forewarning.
Sponsored feeds
When an integrator agrees to support a given feed through a heartbeat publication subscription, that feed will be designated as a sponsored feed for the duration of that agreement.
Sponsored feeds are those supported by an integrator through a subscription (e.g. heartbeat or deviation). Projects utilizing sponsored feeds, but are not paying for the feed, should do so at their own risk. Sponsors may change or remove support at their own discretion.
Orcfax has the following sponsored feeds:
| Feed name | Start Date |
|---|---|
| TBA | TBA |
Sunsetting sponsored feeds
Projects which fail to adhere to subscription agreements risk disruptions to their feeds.
Orcfax will remove support for sponsored feeds 2 weeks after non-payment where there are no subscribed integrators.
Showcase feeds
To demonstrate the kinds of feeds which integrators can utilize in their dApps, Orcfax will periodically select feeds from its catalogue and highlight them through publication as showcase feeds.
Feeds being published and not currently listed as subsidized or sponsored are showcase feeds.
Removal of feed support
Unless a feed is sponsored and paid for by a third-party, or subsidized through Orcfax, we may suspend or remove technical support for feeds at our own discretion.