# Provider Contracts Any user interested to become a provider must deploy GraphQL API and a provider contract to register on chain for revenue collection, token shares or staking opportunities. The provider contract serves as the receiving wallet of the provider and received tokens can be sent to provider, redistributed to token share holders or token stake. **Provider Contract Types:** EIP20 Provider Contract - an EIP20 standard provider contract where tokens can be issued like shareholdings for revenue splitting in the future Staking Provider Contract - a staking contract designed to deposit some token and issue stake tokens referencing the shareholdings for revenue splitting in the future **Provider Contract Factory Addresses:** L1 EVM Chains * Binance Smart Chain * Avalanche * Polygon * Gnosis * Fantom * Cronos * Celo * Harmony Ethereum Sidechains * Arbitrum * Optimism Polkadot Parachain * Moonbeam NEAR EVM Chain * Aurora --- # Agent Instructions: Querying This Documentation If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question. Perform an HTTP GET request on the current page URL with the `ask` query parameter: ``` GET https://xircus.gitbook.io/whitepaper/xircus-studio/workergraph/provider-contracts.md?ask= ``` The question should be specific, self-contained, and written in natural language. The response will contain a direct answer to the question and relevant excerpts and sources from the documentation. Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.