> For the complete documentation index, see [llms.txt](https://docs.on.nexus/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.on.nexus/frequently-asked-questions-faq/4.-api-integration-and-developer-resources.md). # 4. API Integration & Developer Resources **Q: How can I get API access to the full liquidity pools (e.g., the DOG/BTC pool) for arbitrage or building trading tools? The documentation I found seems to be strictly for the Nexus node.** **A:** Our developer documentation is categorized by specific use cases. The Nexus Node APIs you reviewed are exclusively designed for local node deployment and market-making configuration. If you need to fetch full pool data, execute V3 Runes trades, or build arbitrage engines, please refer to our **L1 Swap & Liquidity APIs (V3 Runes Trading)**documentation. * For V3 Rune trading APIs, please visit: * For the general developer portal, please visit: