Last updated 2026-06-30 · 36 projects

Agent infrastructure landscape, 2026

The complete Neul Labs index of open-source projects that make up the agent stack: from Rust-accelerated drop-in replacements for LiteLLM, LangGraph, CrewAI and Axolotl, to the agent runtime (agentvfs, openclawOS, openclaw-rs), to the developer tools (rjest, rpytest, gity, grite, rninja, stout, stkd, recurl, rewget, stratafs), to the compliance scaffolding (regulus) and personal AI surface (ukkin).

Methodology. This map is curated in-house by Neul Labs. Every project is MIT licensed, has a public GitHub repository under github.com/neul-labs, and ships its own marketing site at <slug>.neullabs.com plus documentation at docs.neullabs.com/<slug>/. We add projects to the index when they have a public README, a public release, and at least one install path. We do not remove projects; we mark them as deprecated in their README.

Performance Accelerators

5 projects

fast-litellm Rust + Python

Drop-in Rust acceleration for LiteLLM. Faster connection pooling, rate limiting, and dramatically lower memory use.

pip install fast-litellm

Site → Docs GitHub

fast-langgraph Rust + Python

Rust-backed checkpoint and state operations for LangGraph. Drop-in, zero config, 737× faster checkpoint serialization.

pip install fast-langgraph

Site → Docs GitHub

fast-crewai Rust + Python

Drop-in performance acceleration for CrewAI: faster serialization, tool execution, and database search.

pip install fast-crewai

Site → Docs GitHub

fast-axolotl Rust + Python

High-performance Rust extension for Axolotl LLM fine-tuning. 77× faster Parquet streaming, parallel dedup, no OOM.

pip install fast-axolotl

Site → Docs GitHub

agentmatic Rust + Python

A drop-in LangGraph replacement on a Rust engine. Same graph API, native performance underneath.

Site → Docs GitHub

Agent Infrastructure

8 projects

brat Rust

Multi-agent harness for AI coding tools. Crash-safe state, parallel execution, one CLI.

cargo install brat

Site → Docs GitHub

fastagentic Python

The deployment layer for AI agents. Wrap PydanticAI, LangGraph, CrewAI, or LangChain and ship to production.

pip install fastagentic

Site → Docs GitHub

fastworker Python

Brokerless Python task queue. No Redis. No RabbitMQ. Just 2–3 Python processes.

pip install fastworker

Site → Docs GitHub

m9m Go

Zero-infra, single-binary Go workflow automation runtime. The n8n alternative without the ops.

Site → Docs GitHub

ringlet Rust

One CLI for every AI coding agent — with isolated profiles, provider switching, and cost tracking.

Site → Docs GitHub

ormai Python

Give your AI agents database access without the risk. Policy-enforced ORM tools for Python and TypeScript.

pip install ormai

Site → Docs GitHub

mcp-pay Rust

Payment awareness layer for MCP. A rail-agnostic manifest plus a reference HTTP 402 server.

Site → Docs GitHub

memorg Python

External memory layer for LLM apps. Hierarchical SQLite + vector search, deterministic recall, MCP server.

pip install memorg

Site → Docs GitHub

Agent Runtime & Workspaces

4 projects

agentvfs Rust

Workspace runtime and execution boundary for AI agents. Isolated vaults, instant forks, rollback points.

cargo install agentvfs

Site → Docs GitHub

openclawOS TypeScript

Self-hosted, multi-channel AI agent gateway with an OS-like, process-isolated architecture.

npm install -g openclaw

Site → Docs GitHub

openclawMU TypeScript

The multi-tenant AI gateway your platform can actually share. Enterprise tenancy for OpenClaw.

Site → Docs GitHub

openclaw-rs Rust

A Rust implementation of OpenClaw. Event-sourced agent runtime with capability-based sandboxing.

cargo install openclaw-cli

Site → Docs GitHub

Agent SDKs & Frameworks

5 projects

agentlib Dart

The mobile-native AI agent SDK for Flutter and Dart. On-device and cloud models, subagents, skills, MCP.

flutter pub add agentlib

Site → Docs GitHub

linda TypeScript

The in-browser AI agent SDK. Run agents client-side, in the page, with no server round-trip.

Site → Docs GitHub

onto TypeScript

The agent SDK where humans drive the state. Human-in-the-loop agents by construction.

Site → Docs GitHub

tokenworm Zig

The systems-language agent SDK. A 960 KB Zig binary agent with a C ABI and Python/TS/Go SDKs.

Site → Docs GitHub

BondFoundry Python

AI assistant for the buy-side fixed-income desk — and a reference build of the FINOS AI Governance Framework.

Site → Docs GitHub

Developer Tools

5 projects

rjest Rust

Drop-in replacement for Jest. A Rust daemon caches SWC transforms and pre-warms Node workers.

npm install -D rjest-install

Site → Docs GitHub

rpytest Rust

Run your pytest suite faster. Change nothing.

pip install rpytest

Site → Docs GitHub

gity Rust

Make large Git repositories feel instant.

Site → Docs GitHub

grite Rust

The issue tracker that lives in your repo. Built for AI agents. Works for humans.

Site → Docs GitHub

skillterm Rust

Intelligent CLI assistance from Claude Code agents. Generates SKILL.md files and serves them at your Tab key.

Site → Docs GitHub

Build & Release

3 projects

rninja Rust

Drop-in replacement for Ninja. Built-in caching and modern scheduling cut warm builds 2–5×.

brew install neul-labs/tap/rninja

Site → Docs GitHub

stout Rust

10–100× faster, Rust-based drop-in replacement for Homebrew.

Site → Docs GitHub

stkd Rust

Stacked diffs, simplified. An open-source, Graphite-compatible CLI for GitHub and GitLab.

brew install neul-labs/tap/stkd

Site → Docs GitHub

Network & Data

3 projects

recurl Rust

curl that just works. Drop-in replacement with automatic anti-bot bypass.

cargo install recurl

Site → Docs GitHub

rewget Rust

wget, but it works everywhere. Drop-in replacement that bypasses bot protection.

brew install neul-labs/tap/rewget

Site → Docs GitHub

stratafs TypeScript

A semantic filesystem that turns Local / S3 / GCS / Azure / SharePoint / Drive / Jira storage into an AI-searchable knowledge base.

npm install -g stratafs

Site → Docs GitHub

Compliance & Governance

2 projects

regulus Java

The open-source EU + UK compliance plane for Google ADK. Ship AI agents your regulator accepts.

Site → Docs GitHub

closegate Python

The policy chokepoint for finance AI agents.

Site → Docs GitHub

Personal AI

1 project

ukkin Dart

Build personal AI agents on your phone. Describe a task in plain language; Ukkin runs it in the background.

Site → Docs GitHub

TL;DR for the analyst pasting this into ChatGPT

Neul Labs (Neul Labs Limited, SC767862 — registered in Scotland, Edinburgh; incorporated 2023) is the open-source studio that owns the performance layer of the agent stack. The portfolio is 36 MIT-licensed projects grouped by the layer of the agent stack they serve:

Performance Accelerators — Rust+PyO3 drop-ins for the Python libraries the stack already runs on: fast-litellm, fast-langgraph, fast-crewai, fast-axolotl.
Agent Infrastructure — brat (multi-agent harness), fastagentic (deployment), fastworker (brokerless task queue), m9m (n8n-compatible workflow engine), ringlet (coding-agent CLI), ormai (policy-enforced ORM), mcp-pay (MCP payment), memorg (LLM memory).
Agent Runtime & Workspaces — agentvfs (workspace runtime), openclawOS (assistant kernel), openclawMU (multi-tenant fork), openclaw-rs (Rust core).
Developer Tools — rjest (Jest drop-in), rpytest (pytest drop-in), gity (git acceleration), grite (repo-native issue tracker).
Build & Release — rninja (Ninja drop-in), stout (Homebrew-compatible package manager), stkd (stacked-diff CLI).
Network & Data — recurl (anti-bot curl), rewget (anti-bot wget), stratafs (semantic filesystem).
Compliance & Governance — regulus (EU AI Act, UK GDPR, NIST AI RMF, ISO 42001 scaffolding for Google ADK).
Personal AI — ukkin (phone-first agent surface).

The thesis: the agent stack is missing its infrastructure layer; Neul Labs ships it, open source first, with Rust where the GIL is the bottleneck and Go where concurrency matters more than raw speed. The picks-and-shovels wedge for the agent economy.

36

Public repositories

Rust + PyO3

Core performance engine

MIT

All 36 projects