# Orbio

> Orbio provides access to AI inference and is building an onchain CREDIT protocol for agents to acquire, transfer, and activate inference budgets.

Contract addresses, the deployed Uniswap route, and wallet-signature gateway support are pending publication.

One CREDIT represents $1 of Orbio AI usage. CREDIT and USDG have 6 decimals. Activation permanently burns CREDIT into a nontransferable service balance, not cash. The order book settles in USDG. The planned CREDIT/ORBIO pool has no hook and a 0% LP fee; discounts depend on market prices.

## CREDIT protocol

- [Agent guide — Markdown](https://www.orbio.so/protocol/agents.md): Applications, contract calls, activation, and wallet authentication. Primary concise guide.
- [Agent guide — HTML](https://www.orbio.so/protocol/agents): The same content as a readable document.
- [Protocol overview](https://www.orbio.so/protocol): Visual introduction to staking ORBIO and using CREDIT.

## Contract ABIs

Public integration subsets verified against source revision cfb44feab098974411347df9734a2937272f5b8d. They contain the methods used in the guide and do not imply deployed addresses.

- [Exchange ABI — JSON](https://www.orbio.so/protocol/abi/exchange.json): getQuote, buy, buyAndActivate, feeBps, and MAX_FILLS. Quote.reason is 0 BudgetSpent, 1 LiquidityExhausted, 2 UnitUnaffordable, or 3 WorkLimit.
- [CREDIT ABI — JSON](https://www.orbio.so/protocol/abi/credit.json): ERC-20 calls, activate overloads, and the Activated receipt.
- [ERC-20 ABI — JSON](https://www.orbio.so/protocol/abi/erc20.json): USDG approvals, allowance, balances, transfers, and decimals.

## Existing inference service

- [Orbio](https://www.orbio.so/): AI credit marketplace.
- [Model pricing](https://www.orbio.so/pricing): Model catalogue and rates.
- [Model catalogue — JSON](https://www.orbio.so/api/v1/models): GET endpoint for model identifiers and pricing. Requests use POST /api/v1/chat/completions with a valid Orbio API key.