lfx-ibm
IBM components — Db2 Vector Store, watsonx.ai LLM and embeddings, and watsonx.data Presto and MCP — as a standalone Langflow Extension Bundle.
This bundle ships five components:
DB2VectorStoreComponent— wraps theDB2VSLangChain-compatible vector store and exposes Db2's native vector search through Langflow's standard vector-store palette entry.WatsonxAIComponent— chat/text-generation against IBM watsonx.ai foundation models vialangchain-ibm'sChatWatsonx.WatsonxEmbeddingsComponent— embeddings via watsonx.ai'sWatsonxEmbeddingsmodel.WatsonxDataPrestoComponent— run SQL on a watsonx.data Presto engine (Iceberg lakehouse, federated sources, Confluent Tableflow tables) and get a DataFrame back;presto-python-clientDBAPI withibmlhapikey/ IAM-API-key or basic auth and an optional CA bundle.WatsonxDataMCPComponent— a preset MCP toolset for the watsonx.data remote MCP server (/api/v2/mcp/):LIST_/QUERY_DOCUMENT_LIBRARY,LIST_/QUERY_DOCUMENT_SET,LIST_/QUERY_DATA_ASSETSfor an Agent, with bearer-token or IBM Cloud API-key (IAM exchange) authentication.
It follows the documented porting recipe in
src/bundles/PORTING.md.
Install
pip install lfx-ibm
The bundle is registered automatically via the langflow.extensions
entry-point. After install, restart your Langflow server; the
components appear in the palette under the ibm bundle group.
Platform notes:
- The
ibm-dbdriver does not ship a prebuilt wheel forlinux/aarch64; the dep is gated with a marker sopip installsucceeds on that architecture, butDB2VectorStoreComponentwill fail to build the vector store at runtime there. Use an x86_64 image or installibm-dbfrom source if you need Db2 on aarch64.ibm-watsonx-ai(>=1.5.13) andlangchain-ibm(>=1.1.0) added Python 3.14 support upstream, so the watsonx components are importable on every supported Python version (3.10-3.14). Earlier releases capped at<3.14; the bundle pins were bumped to pick up the 3.14-capable builds.
Develop
cd src/bundles/ibm
pip install -e .
lfx extension validate src/lfx_ibm
Manifest
The extension manifest is shipped at src/lfx_ibm/extension.json and
points at the bundle at components/ibm. Components register under the
canonical namespaced IDs:
ext:ibm:DB2VectorStoreComponent@officialext:ibm:WatsonxAIComponent@officialext:ibm:WatsonxEmbeddingsComponent@officialext:ibm:WatsonxDataPrestoComponent@officialext:ibm:WatsonxDataMCPComponent@official
Migration
Saved flows referencing the legacy bare class names
(DB2VectorStoreComponent, WatsonxAIComponent,
WatsonxEmbeddingsComponent) or the old import paths
(lfx.components.ibm.<module>.<Class> and the package-level
lfx.components.ibm.<Class> forms) are rewritten to the new namespaced
IDs by the migration table in
src/lfx/src/lfx/extension/migration/migration_table.json.
1 maintainer
Metadata
1 maintainer
Release files for lfx-ibm 0.2.7
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