> 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/protocol.md).

# Opium Protocol V1

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[Core](/for-developers/protocol/core.md)
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[Registry](/for-developers/protocol/registry.md)
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[TokenMinter](/for-developers/protocol/tokenminter.md)
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[TokenSpender](/for-developers/protocol/token-spender.md)
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[SyntheticAggregator](/for-developers/protocol/syntheticaggregator.md)
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[OracleAggregator](/for-developers/protocol/oracle-aggregator.md)
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[Helpers](/for-developers/protocol/helpers.md)
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[Interfaces](/for-developers/protocol/interfaces.md)
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[Common Errors](/for-developers/protocol/common-errors.md)
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[oID - Oracle recipe](/for-developers/protocol/oracle-recipe.md)
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[sID - Derivative recipe](/for-developers/protocol/derivative-recipe.md)
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[EIP-2547: Composable Multiclass Token](/for-developers/protocol/eip-2547-composable-multiclass-token.md)
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