# Hop Aero

**Canonical:** https://apis.io/providers/hop-aero/  
**Website:** https://hop-aero.com/  
**APIs profiled:** 0

Hop Aero is a Y Combinator (Summer 2026) aerospace and defense company based in Los Angeles, California, founded in 2024 by Jacob Balaj and Matija Milenovic. The company develops hypersonic rocket cargo vehicles that deliver payloads point-to-point into austere, contested environments hundreds of miles away in minutes, aiming to give the United States and its allies an asymmetric logistics advantage. Hop Aero has raised a $3M pre-seed round and won a $1.25M U.S. Air Force SBIR award; its team draws on experience from SpaceX, Virgin Orbit, Masten Space Systems, SpinLaunch, and Destinus. This is a hardware-stage company with no public API or developer surface at the time of profiling; this record was added to the API Evangelist network as a portfolio-lead stub and is maintained for network discovery and enrichment.

## Kin Score — 5.0 / 100 (minimal)

Scored 2026-08-20 under rubric 0.12.0. Trend: flat (+0.0 from 5.0).

| Facet | Score |
|---|---|
| Discoverability | 50.0 |
| Contract Quality | 0.0 |
| Governance | 0.0 |
| Contract Governance | 0.0 |
| Operational Transparency | 0.0 |
| Developer Ergonomics | 0.0 |
| Commercial Clarity | 0.0 |
| Access Clarity | 0.0 |

## Agent readiness — 0.0 (human-only)

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

## Access

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

## Security (1)

- **Hop Aero Domain Security** — TLSv1.3

## Tags

Company, Aerospace, Defense, Space, Logistics, Rocketry, Hypersonics, Y Combinator

---

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