Connect AI
to everything.

Halyn connects any LLM to servers, robots, sensors, APIs, and industrial hardware — with authorization, audit, and failsafe built in.

pip install halynSource →NRP →
$ pip install halyn Installed halyn-0.2.3 nrprotocol-0.1.0 aiohttp-3.13 $ halyn scan --ssh 10.0.1.10 10.0.1.20 Found 3 nodes: nrp://infra/server/prod 16c · 62GB · load 0.3 nrp://infra/server/staging 8c · 32GB · load 1.2 nrp://cloud/api/stripe 47 endpoints $ halyn serve Halyn v0.2.3 on :8935 — 3 nodes · 41 tools · MCP ready
Pipeline

Discovery to execution. One flow.

Every action passes through consent, authorization, audit, and intent tracking.

01 DISCOVER

Network scan

SSH, MQTT, HTTP, Docker, Modbus. Auto-detect capabilities.

02 CONSENT

Operator approval

New nodes require explicit authorization.

03 CONNECT

NRP registration

Driver reads manifest. Control plane generates tools.

04 AUTHORIZE

Domain policy

5 levels per domain. Rate limits, per-command rules.

05 EXECUTE

Action dispatch

Shield enforcement, sanitization, then execution.

06 AUDIT

Hash-chain log

SHA-256 linked entries. Tamper-detectable. JSONL export.

Authorization

Five levels. Per domain.

Banking at level 0. Sensors at level 4. Each domain has its own policy.

0
Manual
Confirm all
1
Supervised
Read auto
2
Guided
Safe auto
3
Autonomous
Interruptible
4
Delegated
Reports daily
Security

Eight layers.

Auth

Timing-safe HMAC. Rate limiting.

Consent

Persistent device approval store.

Shield

Per-node NRP constraints enforced.

Audit

SHA-256 hash-chain. JSONL export.

Intent

Structured provenance per action.

Watchdog

Failsafe on component failure.

Sanitizer

Injection, traversal, overflow protection.

Emergency stop

Halt all nodes. Sub-100ms.

API

17 REST endpoints + MCP.

GET/health
GET/nodes
POST/execute
POST/emergency-stop
GET/events SSE
GET/audit
GET/audit/verify
POST/consent/approve
POST/consent/deny
GET/consent/pending
POST/confirm/approve
POST/confirm/deny
GET/intents
GET/scan
POST/mcp JSON-RPC
POST/resume
12
Drivers
58
Tests
7.3k
Lines
5
LLM connectors

Open source. MIT licensed.

Built on NRP. Works with Claude, GPT, Ollama, HuggingFace, vLLM.

pip install halynGitHub →NRP →