# Nine Fives

**Canonical:** https://apis.io/providers/nine-fives/  
**Website:** https://ninefives.com  
**APIs profiled:** 5

Nine Fives builds modern, simple-to-use RF (radio frequency) test equipment for next-generation spacecraft, drones, and cellphones. Founded in 2025 by Andrew Kurtz and Noah Levy — RF hardware engineers who spent a decade at SpaceX designing radios and test systems for Falcon 9, Dragon, and Starship — the Y Combinator-backed company sells programmable, network-connected instruments: the POE-ATTEN-6G programmable attenuator and the POE-SWITCH-6G programmable SPDT switch, powered over USB-C or Power over Ethernet. Each instrument is automation-first: it serves a JSON REST API and a SCPI command interface (raw TCP and HiSLIP/IVI-6.1) directly on the device, plus a browser Web UI and touchscreen, with no drivers to install — control it with a plain curl command. The NineVue platform adds version-controlled test-rack configuration and an LLM skill that turns a rack drawing into functional test-automation code.

## Kin Score — 41.2 / 100 (developing)

Scored 2026-08-20 under rubric 0.12.0. Trend: flat (+1.1 from 40.1).

| Facet | Score |
|---|---|
| Discoverability | 92.6 |
| Contract Quality | 47.0 |
| Governance | 30.3 |
| Contract Governance | 30.3 |
| Operational Transparency | 0.0 |
| Developer Ergonomics | 58.9 |
| Commercial Clarity | 23.7 |
| Access Clarity | 23.7 |

## Agent readiness — 40.7 (agent-ready)

| Dimension | Value |
|---|---|
| Spec Presence | yes |
| Agentic Access | no |
| Reversibility Documented | documented |
| MCP Server | verified |
| Auth Clarity | yes |
| Idempotency | no |
| Error Semantics | documented |
| OpenAPI Examples | no |
| Rate Limit Signal | no |
| Event Surface Described | no |
| Agent Skills | derived |
| Well Known Catalog | no |
| Consent Identity | no |
| Agent Card | no |
| Dry Run Mode | no |

## Access

Unknown — onboarding: unknown, pricing: unknown, trial: no (confidence: low).

## APIs (5)

- **Nine Fives Attenuator API** — Attenuation setpoint control
- **Nine Fives Firmware API** — Firmware status and dual-slot (A/B) updates
- **Nine Fives Network API** — Ethernet and USB-C interface configuration
- **Nine Fives Switch API** — SPDT switch state control
- **Nine Fives System API** — Device status and reboot

## MCP servers (1)

- **Nine Fives MCP Server**

## Security (2)

- **Nine Fives Authentication** — none · 0 schemes
- **Nine Fives Domain Security** — TLSv1.3 · HSTS · DMARC

## Tags

Company, RF Test Equipment, Test and Measurement, Hardware, IoT, Instrumentation, Automation, Aerospace, Attenuator, RF Switch, SCPI

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Profiled by [API Evangelist](https://apievangelist.com) and published on [APIs.io](https://apis.io/providers/nine-fives/). Scores are computed from the provider's own public artifacts under a published rubric.