# Fuse Energy

**Canonical:** https://apis.io/providers/tesseractenergy/  
**Website:** https://www.fuseenergy.com/  
**APIs profiled:** 0

Fuse Energy (originally launched as Tesseract) is a UK-based, vertically integrated energy supplier founded by former Revolut executives Alan Chang and Charles Orr. It buys power from generators and supplies gas and electricity directly to residential and business customers, positioning itself to beat the UK price cap with variable, fixed and multi-rate tariffs, 30-minute billing updates, EV charging, solar/battery export tracking and an in-app AI assistant called "Plugs." The company raised $78M led by Balderton Capital and Lakestar. Surfaced in the API Evangelist network as a portfolio-company lead; as of this enrichment pass Fuse Energy publishes only a consumer-facing web and mobile app and no public developer API, SDK, or documentation.

## Kin Score — 9.1 / 100 (minimal)

Scored 2026-08-20 under rubric 0.12.0. Trend: flat (+0.0 from 9.1).

| Facet | Score |
|---|---|
| Discoverability | 50.0 |
| Contract Quality | 0.0 |
| Governance | 0.0 |
| Contract Governance | 0.0 |
| Operational Transparency | 0.0 |
| Developer Ergonomics | 7.1 |
| Commercial Clarity | 23.7 |
| Access Clarity | 23.7 |

Regulatory layer — **Energy & Utilities**: 5.4 (matched via tags).

## Agent readiness — 0.0 (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 | no |
| Event Surface Described | no |
| Agent Skills | no |
| Well Known Catalog | no |
| Consent Identity | no |
| Agent Card | no |
| Dry Run Mode | no |

## Access

Unknown — onboarding: unknown, pricing: unknown, trial: no (confidence: low).

## Tags

Company, Energy, Energy Supplier, Electricity, Gas, EV Charging, Climate Tech, United Kingdom, Consumer

---

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