> For the complete documentation index, see [llms.txt](https://docs.projectcatalyst.io/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.projectcatalyst.io/open-funding/funding-basics/integration-guides.md).
# Integration Guides
### How to use these guides
The Category Brief lists Areas of Interest. Your proposal must leverage **at least one of them**. Each guide below gives you enough context to decide which fits your product, plus the first-hand resources to start building today: docs, repos, sandbox access, support channels. Examples of what you could build are just that - something to inspire you; but lists are non-exhaustive and the program looks forward to your innovative approaches beyond the examples listed.
1. [Oracles: real-time data feeds](/open-funding/funding-basics/integration-guides/oracles-real-time-data-feeds.md)
2. [Stablecoins: building with verified stablecoin asset policies](/open-funding/funding-basics/integration-guides/stablecoins-building-with-verified-stablecoin-asset-policies.md)
3. [Programmable tokens (CIP-0113)](/open-funding/funding-basics/integration-guides/programmable-tokens-cip-0113.md)
4. [On-chain identity (CIP-0170)](/open-funding/funding-basics/integration-guides/on-chain-identity-cip-0170.md)
5. [Analytics: Dune and Cardano leaderboard](/open-funding/funding-basics/integration-guides/analytics-dune-and-cardano-leaderboard.md)
One rule to keep in mind while you read, because it shapes architecture: your fee target is measured in Cardano network fees paid by wallets that are not yours. Fees from your own declared wallets never count (Standard §5.2), and fees your team sponsors on users' behalf don't count either (Standard §12.3). Design flows where your users, not your operations, generate the transactions.
Three things to know before you write your target down. It must sit above your category's published floor. It is scored both ways at selection: a timid target loses points, and an aggressive target without strong evidence loses points too. And it is final at submission, published next to what you actually deliver, permanently; how well you call your own shot becomes part of your public track record and carries into future rounds (Standard §3, §13.5).
Notes throughout the documentation referring to “Standard §XY” are distinct parts of the [Proof of Adoption & Standard](/open-funding/funding-basics/proof-of-adoption-and-standard.md) guidelines.
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