# Locust

**Canonical:** https://apis.io/providers/locust/  
**Website:** https://locust.io  
**APIs profiled:** 1

Locust is an open source load testing tool written in Python that lets you define user behavior with code and swarm your system with millions of simultaneous users. Supports HTTP, WebSocket, MQTT, SocketIO, PostgreSQL, MongoDB, and other protocols via pluggable user classes, with a real-time web UI for orchestrating tests.

## Kin Score — 16.5 / 100 (emerging)

Scored 2026-08-25 under rubric 0.14.0. Trend: flat (+0.0 from 16.5).

| Facet | Score |
|---|---|
| Discoverability | 66.7 |
| Contract Quality | 0.0 |
| Governance | 0.0 |
| Contract Governance | 0.0 |
| Operational Transparency | 36.8 |
| Developer Ergonomics | 9.5 |
| Commercial Clarity | 15.8 |
| Access Clarity | 15.8 |

## Agent readiness — 2.5 (human-only)

| Dimension | Value |
|---|---|
| Spec Presence | no |
| Agentic Access | no |
| Reversibility Documented | no |
| MCP Server | no |
| Auth Clarity | no |
| Idempotency | no |
| Error Semantics | no |
| OpenAPI Examples | no |
| Rate Limit Signal | documented |
| Event Surface Described | no |
| Agent Skills | no |
| Well Known Catalog | no |
| Consent Identity | no |
| Agent Card | no |
| Dry Run Mode | no |
| Delegated Identity | no |
| Protected Resource Metadata | no |
| Dynamic Client Registration | no |
| Agentic Commerce | no |

## Access

Freemium — onboarding: unknown, pricing: freemium, trial: no (confidence: medium).

## APIs (1)

- **Locust** — Open source distributed load testing tool. Tests are written in Python by defining User classes and tasks; tests can be run from a web UI, the command line, or embedded as a lib...

## Security (1)

- **Locust Domain Security** — TLSv1.3 · HSTS

## Plans (1)

- **Locust Plans Pricing**

## Tags

Load Testing, Performance Testing, Open-Source, Python, Testing

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