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Eric Hare

Work

Tools for agents, evidence, and the systems between them.

A selected portfolio of open-source platforms, research software, and the production engineering required to keep them dependable.

Flagship work

Three threads, one point of view.

Make complex systems inspectable. Measure what matters. Leave the implementation open enough to challenge.

Langflow visual flow canvas connecting tools, an agent, and chat input and output components.

Flagship

Langflow

2024 — Present · Core maintainer

The open-source, visual framework for building AI agents. 147k+ stars. I'm a core maintainer.

PythonFastAPIReactLangChainMCPDocker
Two three-dimensional bullet surface scans with aligned crosscut signatures.

Flagship

Verity

2026 — Present · Creator

Forensic surface comparison as calibrated evidence: transparent likelihood ratios — not black-box 'matches' — from 3-D scans of bullets, cartridge cases, and toolmarks.

RustPythonFastAPIRNext.jsPyO3
Aeroza live weather map showing radar reflectivity across the United States.

Flagship

Aeroza

2026 — Present · Creator

Programmable weather intelligence: real-time radar, geospatial queries, streaming APIs, signed webhooks, and probabilistic nowcasting.

PythonFastAPITypeScriptNext.jsPostGISRedis

Research

From bullet matching to calibrated evidence.

Iowa State · CSAFE · Verity

Statistical methods for forensic surface comparison.

My PhD work established an open, reproducible pipeline for analyzing 3D bullet scans. A decade later, that research continues through Verity.

Explore the research
Three-dimensional bullet surfaces and crosscut signatures.

Selected contributions

Platforms I help make real.

Astra DB Data API

Dec 2022 — Present · DataStax → IBM · Software Engineer

The HTTP/JSON API in front of Astra DB — the data plane behind Langflow, astrapy, and the portal's ingestion stack.

PythonJavaFastAPIKubernetesAstra DB
AI Workbench workspace with knowledge bases and retrieval-backed agents.

AI Workbench

2026 — Present · Contributor

A self-hosted product surface for building, inspecting, and operating retrieval-backed AI applications on DataStax Astra.

TypeScriptReactHonoAstra DBOpenAPIDocker

Earlier work

A short archive.

Daisi: Python Cloud Functions

Senior Data Scientist · May 2021 — Dec 2022

Serverless Python ('daisies') for scientific computing — YOLO, Prophet, sentiment, dimensionality reduction, all callable with one line.

Omni Analytics & OmniacsDAO

Chief Data Scientist · May 2017 — May 2021

Statistical consulting, Shiny apps, and an open-source data-science toolkit for DeFi, crypto, and tournament prediction.