# Cesanta

**Canonical:** https://apis.io/providers/cesanta/  
**Website:** https://cesanta.com  
**APIs profiled:** 4

Cesanta is an embedded software and IoT company, established in 2013 to develop and support the Mongoose embedded web server and networking library (HTTP, WebSocket, MQTT, CoAP, TCP/IP) that ships in over 100 million devices from vendors such as Siemens, Bosch, Samsung, Schneider Electric, Broadcom, Google, and Caterpillar — and even runs aboard the International Space Station. Alongside the Mongoose library, Cesanta builds Mongoose OS (an IoT firmware development framework for ESP32, ESP8266, STM32 and other microcontrollers with AWS/Azure/Google Cloud integration), VCON.io (remote firmware update and automated firmware testing), and mDash — a managed IoT device cloud offering device management, over-the-air (OTA) updates, a device database/shadow, remote RPC, access control, and a documented REST API for programmatic fleet management.

## Kin Score — 43.3 / 100 (developing)

Scored 2026-08-20 under rubric 0.12.0. Trend: flat (+0.0 from 43.3).

| Facet | Score |
|---|---|
| Discoverability | 81.5 |
| Contract Quality | 59.8 |
| Governance | 16.7 |
| Contract Governance | 16.7 |
| Operational Transparency | 2.6 |
| Developer Ergonomics | 56.5 |
| Commercial Clarity | 32.9 |
| Access Clarity | 32.9 |

## Agent readiness — 30.6 (agent-aware)

| Dimension | Value |
|---|---|
| Spec Presence | yes |
| Agentic Access | derived |
| Reversibility Documented | no |
| MCP Server | no |
| 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

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

## APIs (4)

- **Cesanta Data API** — Device data storage and retrieval
- **Cesanta Devices API** — Device registration, updates, RPC, and OTA
- **Cesanta Keys API** — API key management
- **Cesanta Logs API** — Notification logs

## MCP servers (1)

- **Cesanta MCP Server**

## Agentic access (1)

- **Cesanta Agentic Access** — 12 operations · 8 acting

## Security (2)

- **Cesanta Authentication** — http · 1 scheme
- **Cesanta Domain Security** — TLSv1.3 · DMARC

## Tags

Company, IoT, Embedded, Device Management, Firmware, OTA, Networking, MQTT

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