# Wattwatchers

**Canonical:** https://apis.io/providers/wattwatchers/  
**Website:** https://wattwatchers.com.au/  
**APIs profiled:** 1

Wattwatchers is an Australian digital energy company (founded 2007, headquartered in Sydney, NSW) that designs and manufactures the Auditor family of DIN-rail electricity monitoring and switching devices, and operates the cloud platform behind them. It sits behind the meter rather than at it — Auditors clamp onto individual circuits and report real-time, circuit-level energy data over 4G or WiFi to Wattwatchers' hosted platform, which resells that data to solar installers, energy retailers, energy services companies, EV and DER programs, schools and research trials. Its API posture is genuinely open at the documentation layer and closed at the data layer — the full REST API v3 (Mercury) reference, a live Swagger UI and a downloadable OpenAPI 3.0 contract are all served anonymously from docs.wattwatchers.com.au, but no key is self-serve: Wattwatchers issues bearer tokens by hand and scopes each one to the specific devices you own or manage, so the API returns your fleet's data and nothing else. Consumer usage data is therefore available through a documented API, while no open grid or market data is published at all. Wattwatchers is not a designated Consumer Data Right energy data holder and does not appear as an accredited data recipient — the CDR energy mandate applies to retailers and AEMO, not to behind-the-meter hardware vendors, so this platform carries no CDR obligation and implements no CDR or Green Button data standard. Wattwatchers entered voluntary administration in October 2025 and was acquired by EPX Limited (ASX:EPX, formerly EP&T Global); the Wattwatchers knowledge base now redirects to support.epx.tech, while the developer documentation, the API host and the OpenAPI contract all remain live and unchanged.

## Kin Score — 45.8 / 100 (developing)

Scored 2026-08-20 under rubric 0.12.0. Trend: flat (+0.0 from 45.8).

| Facet | Score |
|---|---|
| Discoverability | 87.0 |
| Contract Quality | 59.4 |
| Governance | 16.7 |
| Contract Governance | 16.7 |
| Operational Transparency | 44.7 |
| Developer Ergonomics | 56.5 |
| Commercial Clarity | 0.0 |
| Access Clarity | 0.0 |

Regulatory layer — **Energy & Utilities**: 40.5 (matched via tags).

## Agent readiness — 42.9 (agent-ready)

| Dimension | Value |
|---|---|
| Spec Presence | yes |
| Agentic Access | derived |
| Reversibility Documented | no |
| MCP Server | no |
| Auth Clarity | yes |
| Idempotency | no |
| Error Semantics | verified |
| OpenAPI Examples | verified |
| Rate Limit Signal | documented |
| Event Surface Described | no |
| Agent Skills | derived |
| Well Known Catalog | no |
| Consent Identity | no |
| Agent Card | no |
| Dry Run Mode | no |

## APIs (1)

- **Wattwatchers REST API v3 (Mercury)** — The Wattwatchers REST API v3, code-named Mercury — 14 documented operations across 13 paths, covering device inventory and configuration (including switch control via PATCH), 30...

## MCP servers (1)

- **Wattwatchers MCP Server** — Candidate MCP tool surface for the Wattwatchers REST API v3 (Mercury). All 14 operations map cleanly to tools. Note the safety profile: 13 of 14 are safe reads, and exactly one ...

## Agentic access (1)

- **Wattwatchers Agentic Access** — 14 operations · 1 acting · 1 human-in-the-loop

## Security (2)

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

## Tags

Energy, Australia, Utilities, Electricity, Smart Metering, Energy Data, IoT, Solar, DER, Demand Response

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