# txn2

> Open source organization for components developed by Craig Johnston, sponsored by Deasil Works, Inc. and Plexara. Includes Model Context Protocol (MCP) servers for the modern data stack, command-line tools for Kubernetes networking and host-file management, and supporting Go libraries. All components released under the MIT or Apache 2.0 license.

Based in Los Angeles, California. Established 2017.

## Model Context Protocol servers

- [mcp-data-platform](https://mcp-data-platform.txn2.com): A semantic data platform MCP server that composes multiple data tools with bidirectional cross-injection — tool responses automatically include critical context from other services. Composes mcp-s3, mcp-trino, and mcp-datahub behind a single endpoint. Source: https://github.com/txn2/mcp-data-platform
- [mcp-s3](https://mcp-s3.txn2.com): A Model Context Protocol server for Amazon S3 and S3-compatible object storage. Browse buckets, read and write objects, generate presigned URLs. Source: https://github.com/txn2/mcp-s3
- [mcp-trino](https://mcp-trino.txn2.com): A Model Context Protocol server for Trino, enabling AI assistants to query and explore data warehouses. Source: https://github.com/txn2/mcp-trino
- [mcp-datahub](https://mcp-datahub.txn2.com): DataHub MCP server and composable Go library for building custom MCP servers that integrate DataHub metadata capabilities. Part of the txn2 MCP toolkit ecosystem. Source: https://github.com/txn2/mcp-datahub

## Utilities

- [kubefwd](https://kubefwd.com): Bulk port forwarding Kubernetes services for local development. Walks one or more namespaces, opens a port-forward for every service, and writes hostname entries into /etc/hosts. Source: https://github.com/txn2/kubefwd
- [txeh](https://txeh.txn2.com): Go library and CLI utility for /etc/hosts management. Idempotent operations, stable formatting. Source: https://github.com/txn2/txeh

## Other components

- [portpxy](https://github.com/txn2/portpxy): HTTP proxy to a port specified on the request path.
- [jwtpxy](https://github.com/txn2/jwtpxy): Pre-validates and parses JWT web tokens into HTTP headers easily read by backend services.
- [amp](https://github.com/txn2/amp): Kubernetes Dynamic Admission Control mutating Webhook proxy for Pods.
- [rxtx](https://github.com/txn2/rxtx): Queue-based data collector and transmitter with store-and-forward. Useful for online/offline data collection and back-pressure buffering.
- [asws](https://github.com/txn2/asws): Static web server with a JSON REST API for exposing directory listings.
- [mcp-common](https://github.com/txn2/mcp-common): MCP Go library providing shared interfaces, types, and utilities for building composable Model Context Protocol servers.

## Optional

- [GitHub organization](https://github.com/txn2): All txn2 repositories.
- [All source repositories](https://github.com/txn2?tab=repositories&type=source): Filterable list of source repositories.
- [Docker Hub](https://hub.docker.com/u/txn2): Published container images.
- [Craig Johnston](https://imti.co): Author. Personal blog at imti.co.
- [Deasil Works, Inc.](https://deasil.works): Sponsor. Software consultancy.
- [Plexara](https://plexara.io): Sponsor.