# Modbus Simulator Control API

**Canonical:** https://apis.io/apis/otfabric/modbus-simulator-control-api/  
**Provider:** OT Fabric — https://apis.io/providers/otfabric/  
**Documentation:** https://otfabric.io/docs/protocols/modbus/testing/

Modbus Simulator Control API is one of 2 APIs that [OT Fabric](https://apis.io/providers/otfabric/) publishes on the [APIs.io](https://apis.io/) network. Tagged areas include Modbus, Testing, and Self-Hosted. The published artifact set on APIs.io includes API documentation and a GitHub repository.

A small self-hosted HTTP control API served by the OT Fabric modbus-simulator when started with --control (the docs example binds 127.0.0.1:5021), so a test suite can reset or reload the simulated devices between cases: POST /reset, POST /reset?unit=N, POST /reload and GET /healthz. It runs on the user's own machine; there is no provider-hosted base URL.

## Machine-readable artifacts (2)

- **Documentation** — https://otfabric.io/docs/protocols/modbus/testing/
- **GitHubRepository** — https://github.com/otfabric/modbus-simulator

## Other OT Fabric APIs (1)

- [OT Fabric Protocol Libraries and CLIs](https://apis.io/apis/otfabric/otfabric-protocol-libraries/)

## Tags

Modbus, Testing, Self-Hosted

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Profiled by [API Evangelist](https://apievangelist.com) and published on [APIs.io](https://apis.io/apis/otfabric/modbus-simulator-control-api/). The API's provider profile, Kin Score and agent-readiness rating are at https://apis.io/providers/otfabric/.