baml_bridge

Python bindings for the BAML runtime (powered by bex_engine).

baml_bridge is the bridge layer that generated baml_sdk packages import at runtime: it provides the BamlRuntime singleton, the protobuf encoder/decoder, the function/method factories, and the Collector / BamlCtxManager observability primitives.

from baml_bridge import BamlRuntime

rt = BamlRuntime.initialize_runtime(
    root_path=".",
    files={"main.baml": baml_source},
    sdk_root="my_sdk",
)

This package is generally consumed indirectly via the code generated by baml-cli generate --target python — direct use is reserved for runtime authors and bridge tests.

Requirements

Python 3.10+
protobuf >= 6.31.1

License

Apache-2.0

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