# TTTech

> TTTech Computertechnik AG (Vienna, Austria) builds deterministic networking and safety-critical
> embedded platforms — TTP, TTEthernet/SAE AS6802 and IEEE 802.1 Time-Sensitive Networking — for
> aerospace, space, automotive, energy and industrial automation. Its public developer surface is
> **Nerve**, the industrial edge computing and device-management platform from TTTech Industrial
> Automation AG: a hosted Management System plus on-device node software that deploys and controls
> Docker, docker-compose, CODESYS and virtual-machine workloads on certified edge hardware.
>
> Nerve publishes two OpenAPI 3 contracts totalling 228 operations. The platform is certified to
> IEC 62443-4-2 and publishes a requirement-by-requirement compliance mapping in its product
> documentation.
>
> This file was generated by API Evangelist from TTTech's public artifacts on 2026-09-01. TTTech does
> not publish an llms.txt of its own (probed: /llms.txt returns 404 on docs.nerve.cloud, nerve.cloud,
> www.tttech-industrial.com and www.tttech.com).

## APIs

- [Nerve Management System API](https://docs.nerve.cloud/developer_guide/ms-api/): OpenAPI 3.0.3,
  151 operations. Cloud control plane for the Nerve edge estate — authentication and MFA, node
  registration and lifecycle, workload and version management (Docker, docker-compose, CODESYS, VM),
  deployment and workload control, labels, LDAP federation, Nerve DNA declarative node configuration,
  remote connections, notifications, the Nerve Docker registry, node/cloud updates and usage reports.
  Base URL is the customer's own Management System host; the published spec names the hosted trial
  system https://trynerve1.nerve.cloud.
- [Nerve Node API](https://docs.nerve.cloud/developer_guide/ms-api/#nerve-node-api): OpenAPI 3.0.1,
  77 operations. Served by the Local UI on each Nerve device at http://172.20.2.1:3333 (host-access
  interface) or <wanip>:3333. Node initialisation and licence activation, system and network
  configuration, proxy settings, local users, Docker images and volumes, workloads with logs,
  snapshots, backups, networks and compose, CODESYS process control, remote connections, the Data
  Services datapath and Nerve DNA.

## Specs

- [Nerve Management System OpenAPI (vendor JSON)](https://docs.nerve.cloud/developer_guide/ms-api/management_system_api.json)
- [Nerve Node OpenAPI (vendor JSON)](https://docs.nerve.cloud/developer_guide/ms-api/localui_api.json)
- [Management System OpenAPI, harvested](openapi/tttech-nerve-management-system-openapi.yml)
- [Node OpenAPI, harvested](openapi/tttech-nerve-node-openapi.yml)

## Docs

- [Nerve documentation](https://docs.nerve.cloud/)
- [Getting started](https://docs.nerve.cloud/getting_started/)
- [Developer guide](https://docs.nerve.cloud/developer_guide/)
- [API documentation](https://docs.nerve.cloud/developer_guide/ms-api/)
- [Working with the Management System API](https://docs.nerve.cloud/developer_guide/ms-api/api-pointers/)
- [Nerve API example scripts](https://docs.nerve.cloud/developer_guide/ms-api/api-examples/)
- [Nerve DNA](https://docs.nerve.cloud/developer_guide/dna/)
- [Nerve Data Services Gateway](https://docs.nerve.cloud/developer_guide/data/gateway/)
- [Documentation changelog](https://docs.nerve.cloud/changelog/)
- [Previous versions](https://docs.nerve.cloud/versions/)

## SDKs and tooling

- [nerve-api-python](https://github.com/tttech-nerve/nerve-api-python) — first-party Python library
  (nerve_lib), MIT, v1.4.0 (2026-06-29). Installed by git URL with poetry; not on PyPI.
- [nerve-api-cli](https://github.com/tttech-nerve/nerve-api-cli) — first-party CLI wrapper, MIT,
  v2.0.0-beta (2026-06-29), latest stable v1.3.0. Has a global --dry-run flag.
- [nerve-api-examples](https://github.com/tttech-nerve/nerve-api-examples) — example scripts, last
  released 2024-09-02.

## Security and compliance

- [Security recommendations](https://docs.nerve.cloud/security/)
- [IEC 62443-4-2 product compliance mapping](https://docs.nerve.cloud/security/compliance/)
- [IEC 62443-4-2 verification methods](https://docs.nerve.cloud/security/verification/)
- [Nerve IEC 62443-4-2 certificate (PDF)](https://www.tttech.com/sites/default/files/documents/TTTECH_certificate_IEC62443-4-2_Nerve.pdf)
- [Product security reporting](https://docs.nerve.cloud/security/contact/)
- [TTTech responsible disclosure](https://www.tttech.com/responsible-disclosure)
- [Quality and standards](https://www.tttech.com/company/quality-and-standards)

## Commercial

- [Nerve](https://nerve.cloud/) — product site. No price list is published; Nerve is sold through a
  sales representative and API access to the hosted trial system is by request.
- [Contact](https://nerve.cloud/contact)
- [Support portal](https://tttech-industrial.xurrent.com/)
- [Nerve Software License Terms 1.8](https://www.tttech-industrial.com/slt/nerve)
- [Nerve Management System SLA 4.0](https://www.tttech-industrial.com/sla/nerve)
- [Terms and conditions](https://www.tttech.com/terms-conditions)
- [Privacy notice](https://www.tttech.com/privacy-notice)

## Things an agent should know before calling this API

- Serial numbers must be sent in **all capital letters** (`^([A-Z0-9]){12}$`).
- Authentication is session-based: `POST /auth/login` then a `sessionId` (or `cookie`) header. MFA and
  LDAP are supported. There is **no OAuth 2.0 and no scope surface**.
- **No idempotency key exists.** Do not blind-retry a write; re-read state first.
- Errors are vendor JSON — `{errorCode, message}` on the Management System, `{status, msg}` on the node.
  Not RFC 9457.
- **No published rate limit and no rate-limit headers.** The only 429 is brute-force login protection
  (5 consecutive failures block a user for 30 minutes; 100 failures block an IP for 24 hours), and no
  `Retry-After` is sent.
- Workload control and DNA apply change what runs on industrial machinery. Every command has an inverse
  except `UNDEPLOY`; DNA cancel works only while a configuration is in progress. Node offboarding and
  the secure factory reset are terminal.
- TTTech ships **no MCP server, no A2A agent card, no AsyncAPI, no GraphQL and no /.well-known/
  documents**. Anything claiming otherwise is not TTTech's.