# Toit

**Canonical:** https://apis.io/providers/toit/  
**Website:** https://toit.io/  
**APIs profiled:** 0

Toit builds an open-source, high-level programming language and runtime for microcontrollers, targeting the ESP32 family, together with fleet-management tooling for deploying, monitoring and hot-reloading software across large fleets of connected IoT devices. The Toit language, virtual machine, package registry and the Jaguar (`jag`) live-reload developer CLI are open source and free; Toit also offers a self-hostable fleet broker and paid engineering support. The company previously operated a managed cloud platform exposing a gRPC API (device, pub/sub data, program compilation and organization management) before pivoting to the open-source language stack; those Protobuf definitions were archived in 2023. Toit is backed by Creandum.

## Kin Score — 25.3 / 100 (emerging)

Scored 2026-08-17 under rubric 0.11.0. Trend: flat (+0.0 from 25.3).

| Facet | Score |
|---|---|
| Discoverability | 57.4 |
| Contract Quality | 0.0 |
| Governance | 3.1 |
| Operational Transparency | 5.3 |
| Developer Ergonomics | 60.9 |
| Commercial Clarity | 31.6 |

## Agent readiness — 11.7 (agent-aware)

| Dimension | Value |
|---|---|
| Spec Presence | no |
| Agentic Access | no |
| MCP Server | derived |
| Auth Clarity | yes |
| 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

Self-serve signup — onboarding: self-serve, pricing: unknown, trial: no (confidence: medium).

## MCP servers (1)

- **toit-mcp.yml**

## Security (2)

- **Toit Authentication** — bearer/apiKey · 2 schemes
- **Toit Domain Security** — TLSv1.3 · DMARC

## Tags

Company, Saas, IoT, Embedded, ESP32, Microcontrollers, Programming Language, Fleet Management, Firmware, Developer Tools, gRPC

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