Toit

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.

Toit is profiled on the APIs.io network. Tagged areas include Company, Saas, IoT, Embedded, and ESP32.

Toit’s developer surface includes documentation, getting-started guide, support, engineering blog, pricing, authentication, CLI, and 13 more developer resources.

🌐 Visit website 📡 Source on GitHub

25.5/100 emerging ▬ flat Agent 10/100 human only Full breakdown ↓
scored 2026-07-27 · rubric v0.5

AccessSelf serve

0 APIs

CompanySaasIoTEmbeddedESP32MicrocontrollersProgramming LanguageFleet ManagementFirmwareDeveloper ToolsgRPC

Kin Score

Kin Score How this is scored →
scored 2026-07-27 · rubric v0.5

Composite quality — 25.5/100 · emerging

Contract Quality 0.0 / 25

Developer Ergonomics 11.7 / 20

Commercial Clarity 6.3 / 20

Operational Transparency 0.7 / 13

Governance 0.0 / 12

Discoverability 6.8 / 10

Agent readiness — 10/100 · human only

Machine-Readable Contract 0 / 18

Agentic Access Contract 0 / 15

MCP Server 0 / 12

Machine-Readable Auth 10 / 10

Idempotency 0 / 9

Stable Error Semantics 0 / 8

Request/Response Examples 0 / 7

Rate-Limit Signaling 0 / 7

Typed Event Surface 0 / 6

Agent Skills 0 / 5

Well-Known Catalog 0 / 4

Consent & Bot Identity 0 / 3

Improve this rating by publishing the missing artifacts — every area above can be raised, and the full rubric is at apis.io/rating/. This rating is computed from github.com/api-evangelist/toit: open an issue to ask a question, or submit a pull request to add artifacts. Want it done for you? Prioritized profiling — $2,500 →

Get Started 2

Portal, sign-up, and the first successful call

DeveloperPortal

DeveloperPortal

GettingStarted

GettingStarted

Documentation 1

Reference material describing how the API behaves

Documentation

Documentation

Agent Surfaces 1

MCP servers, agent skills, and machine-readable catalogs

LLMsTxt

LLMsTxt

Design & Contract 2

Pagination, idempotency, versioning, errors, and events

Conformance

Conformance

DataModel

DataModel

Build 5

SDKs, sample code, and the tooling you integrate with

GitHubOrganization

GitHubOrganization

GitHubOrganization

CLI

Packages

SDKs

Access & Security 2

Authentication, authorization, and security posture

Authentication

Authentication

DomainSecurity

DomainSecurity

Operate 1

Status, limits, changes, and where to get help

Support

Support

Commercial 3

Pricing, plans, and the legal terms of use

Pricing

Pricing

TermsOfService

TermsOfService

PrivacyPolicy

PrivacyPolicy

Company 2

The organization behind the API

Website

Website

Blog

Blog

Other 1

Properties that don't map to a standard resource type

Protobuf

Protobuf

Source (apis.yml)

aid: toit
name: Toit
description: 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.
accessModel:
  pricing: unknown
  onboarding: self-serve
  trial: false
  try_now: false
  public: false
  label: Self-serve signup
  confidence: medium
  source:
  - authentication
  generated: '2026-07-22'
  method: derived
image: https://github.com/toitlang.png
url: https://raw.githubusercontent.com/api-evangelist/toit/refs/heads/main/apis.yml
x-type: company
x-source: vc-portfolio
x-backed-by:
- creandum
x-tier: stub
x-tier-reason: portfolio-lead
specificationVersion: '0.20'
created: '2026-07-17'
modified: '2026-07-21'
tags:
- Company
- Saas
- IoT
- Embedded
- ESP32
- Microcontrollers
- Programming Language
- Fleet Management
- Firmware
- Developer Tools
- gRPC
apis: []
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
common:
- type: Website
  url: https://toit.io/
- type: DeveloperPortal
  url: https://docs.toit.io/
- type: Documentation
  url: https://docs.toit.io/
- type: GettingStarted
  url: https://docs.toit.io/getstarted
- type: Support
  url: https://help.toit.io/
- type: Blog
  url: https://blog.toit.io/
- type: Pricing
  url: https://toit.io/pricing
- type: TermsOfService
  url: https://toit.io/terms-of-service
- type: PrivacyPolicy
  url: https://toit.io/privacy-policy
- type: GitHubOrganization
  url: https://github.com/toitlang
- type: GitHubOrganization
  name: toitware
  url: https://github.com/toitware
- type: Protobuf
  name: Toit cloud gRPC API definitions (legacy, archived)
  url: grpc/toit-api-index.yml
- type: Authentication
  url: authentication/toit-authentication.yml
- type: Conformance
  url: conformance/toit-conformance.yml
- type: DataModel
  url: data-model/toit-data-model.yml
- type: CLI
  url: cli/toit-cli.yml
- type: Packages
  url: packages/toit-packages.yml
- type: SDKs
  name: Toit language SDK
  url: packages/toit-packages.yml
- type: DomainSecurity
  url: security/toit-domain-security.yml
- type: LLMsTxt
  url: llms/toit-llms.txt
x-enrichment:
  date: '2026-07-21'
  status: enriched
  artifacts_added: 9
  pass: local-v1