# Developers - [Subgraph](https://dev.bondprotocol.finance/developers/subgraph.md): View data related to markets, tokens and bond purchases - [Market Calculations](https://dev.bondprotocol.finance/developers/market-calculations.md): How to calculate pricing, discount, vesting etc for markets - [Purchases & Redemptions](https://dev.bondprotocol.finance/developers/purchases-and-redemptions.md): How to enable users to purchase and redeem bonds - [User Balances](https://dev.bondprotocol.finance/developers/user-balances.md): How to load user vesting token balances - [Options Library](https://dev.bondprotocol.finance/developers/options-library.md): Frontend library for interacting with Option contracts - [Helper Functions](https://dev.bondprotocol.finance/developers/options-library/helper-functions.md): Functions providing data commonly required by frontend displays. - [Types](https://dev.bondprotocol.finance/developers/options-library/types.md): Custom types used by options-library --- # 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://dev.bondprotocol.finance/developers.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.