Add ORA to Oracles list

Author: Gwen-M

docs/tools/oracles/ora.md

@@ -0,0 +1,73 @@
+!!! info "Content disclaimer"
+
+    Please view the third-party content disclaimer [here](https://github.com/0xPolygon/polygon-docs/blob/main/CONTENT_DISCLAIMER.md).
+
+[ORA](https://ora.io) is Ethereum's Trustless AI. ORA is the verifiable oracle protocol that brings AI and complex compute onchain.
+ORA’s main product, **Onchain AI Oracle (OAO)**, brings AI onchain.
+
+ORA breaks down the limitations of smart contracts by offering verifiable AI inference, so developers can innovate freely.
+
+## OAO Quickstart
+
+This quickstart is designed to help you to build a smart-contract on Polygon able to interact with OAO. You can find more details in [our docs quickstart.](https://docs.ora.io/doc/oao-onchain-ai-oracle/develop-guide)
+
+### Workflow
+
+1. The user contract sends the AI request to OAO on Polygon, by calling `requestCallback` function on the OAO contract.
+2. Each AI request will initiate an opML inference.
+3. OAO will emit a `requestCallback` event which will be collected by opML node.
+4. opML node will run the AI inference, and then upload the result on Polygon, waiting for the challenge period.
+    1. During the challenge period, the opML validators will check the result, and challenge it if the submitted result is incorrect.
+    2. If the submitted result is successfully challenged by one of the validators, the submitted result will be updated on Polygon.
+    3. After the challenge period, the submitted result on chain is finalized.
+5. When the result is uploaded or updated on Polygon, the provided AI inference in opML will be dispatched to the user's smart contract via its specific callback function.
+
+## Integration
+
+### Overview
+
+To integrate with OAO, you will need to write your own contract.
+
+To build with AI models of OAO, we provided an example of contract using OAO: [Prompt](https://polygonscan.com/address/0xC20DeDbE8642b77EfDb4372915947c87b7a526bD).
+
+### Smart Contract Integration
+
+1. Inherit `AIOracleCallbackReceiver` in your contract and bind with a specific OAO address:
+
+```solidity
+constructor(IAIOracle _aiOracle) AIOracleCallbackReceiver(_aiOracle) {}
+```
+
+2. Write your callback function to handle the AI result from OAO. Note that only OAO can call this function:
+
+```solidity
+function aiOracleCallback(uint256 requestId, bytes calldata output, bytes calldata callbackData) external override onlyAIOracleCallback()
+```
+
+3. When you want to initiate an AI inference request, call OAO as follows:
+
+```solidity
+aiOracle.requestCallback(modelId, input, address(this), gas_limit, callbackData);
+```
+
+## Reference
+
+2 models are available on Polygon: Stable Diffusion (ID: 50), Llama3 8B Instruct (ID: 11).
+
+[Prompt](https://docs.ora.io/doc/oao-onchain-ai-oracle/reference) and [SimplePrompt](https://docs.ora.io/doc/oao-onchain-ai-oracle/reference) are both example smart contracts interacted with OAO.
+
+For simpler application scenarios (eg. Prompt Engineering based AI like GPTs), you can directly use Prompt or SimplePrompt.
+
+SimplePrompt saves gas by only emitting the event without storing historical data.
+
+Polygon PoS Mainnet: 
+
+- OAO Proxy: [0x0A0f4321214BB6C7811dD8a71cF587bdaF03f0A0](https://polygonscan.com/address/0x0A0f4321214BB6C7811dD8a71cF587bdaF03f0A0)
+- Prompt: [0xC20DeDbE8642b77EfDb4372915947c87b7a526bD](https://polygonscan.com/address/0xC20DeDbE8642b77EfDb4372915947c87b7a526bD)
+- SimplePrompt: [0xC3287BDEF03b925A7C7f54791EDADCD88e632CcD](https://polygonscan.com/address/0xC3287BDEF03b925A7C7f54791EDADCD88e632CcD)
+
+## Useful links:
+
+- Read [ORA documentation](https://docs.ora.io)
+- [Join our Discord](https://discord.gg/ora-io) where our team can help you
+- Follow us [on X](https://x.com/OraProtocol)

mkdocs.yml

@@ -523,6 +523,7 @@ nav:
           - Chainlink: tools/oracles/chainlink.md
           - Chronicle: tools/oracles/chronicle.md
           - DIA: tools/oracles/diadataoracles.md
+          - ORA: tools/oracles/ora.md
           - Pyth: tools/oracles/pyth.md
           - Razor: tools/oracles/razor.md
           - Supra: tools/oracles/supra.md