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# Trait Pricing Source

> Pluggable pricing source interface.

Generated from `cargo doc --no-deps -p nemo-relay -p nemo-relay-adaptive -p nemo-relay-ffi`.

<pre />

Pluggable pricing source interface.

Database, service-backed, or enterprise-managed pricing integrations should implement this trait and return a validated catalog snapshot. The LLM hot path uses [`PricingResolver`](/reference/api/rust-library-reference/nemo-relay/codec/pricing/struct-pricingresolver), so sources can refresh out-of-band without making each response decode perform network or database I/O.

## Required Methods

#### `source_name`

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Stable source name for diagnostics.

#### `load_catalog`

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Loads a catalog snapshot from this source.

## Implementors