> For the complete documentation index, see [llms.txt](https://docs.opium.network/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.opium.network/for-developers/opium-api.md).

# Opium API

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[Subgraph V2](/for-developers/opium-api/subgraph-v2.md)
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[Subgraph V1](/for-developers/opium-api/opium-protocol-on-the-graph.md)
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