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* feat: Add CometAPI integration with new components and documentation. - Updated sidebars to include CometAPI bundle. - Enhanced compatibility modules to support CometAPI constants. - Implemented lazy loading for CometAPI icons in the frontend. - Added CometAPI to the list of sidebar bundles in styleUtils. - Introduced CometAPI documentation page detailing usage and parameters. - Created CometAPI icon components for consistent UI representation. - Defined CometAPI model constants for available models. - Developed CometAPI component for language model integration with input handling. - Implemented model fetching logic from CometAPI API. * fix: Update CometAPI component with improved error handling and dynamic imports * Update docs/sidebars.js Co-authored-by: April I. Murphy <36110273+aimurphy@users.noreply.github.com> * Update docs/docs/Components/bundles-cometapi.mdx Co-authored-by: April I. Murphy <36110273+aimurphy@users.noreply.github.com> * Update docs/docs/Components/bundles-cometapi.mdx Co-authored-by: April I. Murphy <36110273+aimurphy@users.noreply.github.com> * Update docs/docs/Components/bundles-cometapi.mdx Co-authored-by: April I. Murphy <36110273+aimurphy@users.noreply.github.com> * Update docs/docs/Components/bundles-cometapi.mdx Co-authored-by: April I. Murphy <36110273+aimurphy@users.noreply.github.com> * Update docs/docs/Components/bundles-cometapi.mdx Co-authored-by: April I. Murphy <36110273+aimurphy@users.noreply.github.com> * Update docs/docs/Components/bundles-cometapi.mdx Co-authored-by: April I. Murphy <36110273+aimurphy@users.noreply.github.com> * add tests to cometAPI * [autofix.ci] apply automated fixes * Add new Claude model constant * fixtest_component_input_types * build component index * test_lambda_filter * fix merge conflicts test_lambda_filter * build_component_index * [autofix.ci] apply automated fixes * fix ruff errors * update component index * build component index * build_component_index * build component index * build: Update component index for CometAPI integration * fix: playwright tests * chore: Update starter projects with latest component versions * chore: no code changes (empty change set) No modifications to source files were detected in this change set. This is a no-op commit used to record a checkpoint; no behavior, dependencies, or tests were altered. Files changed: 0 * fix tests for components * build component index --------- Co-authored-by: April I. Murphy <36110273+aimurphy@users.noreply.github.com> Co-authored-by: Himavarsha <40851462+HimavarshaVS@users.noreply.github.com> Co-authored-by: himavarshagoutham <himavarshajan17@gmail.com> Co-authored-by: autofix-ci[bot] <114827586+autofix-ci[bot]@users.noreply.github.com> Co-authored-by: Jordan Frazier <122494242+jordanrfrazier@users.noreply.github.com>
Caution
- Langflow versions 1.6.0 through 1.6.3 have a critical bug where
.envfiles are not read, potentially causing security vulnerabilities. DO NOT upgrade to these versions if you use.envfiles for configuration. Instead, upgrade to 1.6.4, which includes a fix for this bug.- Windows users of Langflow Desktop should not use the in-app update feature to upgrade to Langflow version 1.6.0. For upgrade instructions, see Windows Desktop update issue.
- Users must update to Langflow >= 1.3 to protect against CVE-2025-3248
- Users must update to Langflow >= 1.5.1 to protect against CVE-2025-57760
For security information, see our Security Policy and Security Advisories.
Langflow is a powerful tool for building and deploying AI-powered agents and workflows. It provides developers with both a visual authoring experience and built-in API and MCP servers that turn every workflow into a tool that can be integrated into applications built on any framework or stack. Langflow comes with batteries included and supports all major LLMs, vector databases and a growing library of AI tools.
✨ Highlight features
- Visual builder interface to quickly get started and iterate .
- Source code access lets you customize any component using Python.
- Interactive playground to immediately test and refine your flows with step-by-step control.
- Multi-agent orchestration with conversation management and retrieval.
- Deploy as an API or export as JSON for Python apps.
- Deploy as an MCP server and turn your flows into tools for MCP clients.
- Observability with LangSmith, LangFuse and other integrations.
- Enterprise-ready security and scalability.
⚡️ Quickstart
Install locally (recommended)
Requires Python 3.10–3.13 and uv (recommended package manager).
Install
$ uv pip install langflow -U
Installs the latest Langflow package.
Run
$ uv run langflow run
Starts the Langflow server at http://127.0.0.1:7860.
That's it! You're ready to build with Langflow 🎉
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If you're contributing or running from source, see DEVELOPMENT.md for setup instructions.
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