# Fern Bot

**Canonical:** https://apis.io/providers/fern-bot/  
**Website:** https://fern.bot  
**APIs profiled:** 0

Fern (operating as Ishiki Labs) is a Y Combinator (Winter 2026) physical-AI startup building high-fidelity, custom robot world models that let robotics companies evaluate and train their robot policies at scale in software. Fern provides plug-and-play reinforcement-learning environments generated from a foundational world model: robotics teams seed varied starting scenes from their production environments, test and improve policies entirely in simulation, and Fern generates RL heads on top of existing policies to raise speed and success rates — a continual-learning flywheel where production robots improve every week. Founded in 2025 by CEO Amit Yadav (ex-Meta LLaMA / Reality Labs research scientist) and CTO Robert Xu (ex-Meta Reality Labs and Citadel Securities). As of this profile Fern publishes a marketing site, a whitepaper, and case studies but no public developer API, SDK, or documentation surface.

## 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)

- **Fern Bot Domain Security** — TLSv1.3 · HSTS

## Tags

Company, Robotics, Physical AI, Reinforcement Learning, World Models, Simulation, Infrastructure, Y Combinator

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