# Service Fusion

**Canonical:** https://apis.io/providers/servicefusion/  
**Website:** https://www.servicefusion.com  
**APIs profiled:** 9

Service Fusion is field service management (FSM) software for home-service contractors - HVAC, plumbing, electrical, appliance repair, and similar trades. It covers customer management, estimates, scheduling and dispatch, work orders/jobs, invoicing, payments, inventory, and a technician mobile app, with flat-rate pricing and unlimited users on every plan. Service Fusion exposes an Open API - a REST/JSON interface secured with OAuth 2.0 (base https://api.servicefusion.com/v1, token endpoint https://api.servicefusion.com/oauth/access_token) - that lets developers read and create records for customers, jobs, estimates, invoices, technicians, and related resources. API access is available on the Pro plan; the API is rate limited to roughly 60 requests per minute.

## Kin Score — 38.3 / 100 (thin)

Scored 2026-08-21 under rubric 0.12.0. Trend: flat (+0.0 from 38.3).

| Facet | Score |
|---|---|
| Discoverability | 74.1 |
| Contract Quality | 56.4 |
| Governance | 0.0 |
| Contract Governance | 0.0 |
| Operational Transparency | 31.6 |
| Developer Ergonomics | 23.8 |
| Commercial Clarity | 39.5 |
| Access Clarity | 39.5 |

## Agent readiness — 29.1 (agent-aware)

| Dimension | Value |
|---|---|
| Spec Presence | yes |
| Agentic Access | derived |
| Reversibility Documented | no |
| MCP Server | no |
| Auth Clarity | yes |
| 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 |

## Access

Paid · Self-serve signup — onboarding: self-serve, pricing: paid, trial: no (confidence: high).

## APIs (9)

- **Service Fusion Calendar Tasks API** — Non-job scheduled calendar items and reminders.
- **Service Fusion Contacts API** — Individual contacts and service locations on a customer account.
- **Service Fusion Customers API** — Customer accounts served by the contractor.
- **Service Fusion Estimates API** — Estimates (quotes) presented to customers before work begins.
- **Service Fusion Invoices API** — Invoices billed to customers for completed work.
- **Service Fusion Jobs API** — Jobs (work orders) scheduled and dispatched to technicians.
- **Service Fusion Payments API** — Payments applied against invoices.
- **Service Fusion Products and Services API** — Catalog of products (parts/inventory) and services (labor/tasks).
- **Service Fusion Techs and Users API** — Technicians and users the work is assigned to.

## Agentic access (1)

- **Servicefusion Agentic Access** — 24 operations · 9 acting

## Security (2)

- **Servicefusion Authentication** — http/oauth2 · 2 schemes
- **Servicefusion Domain Security** — TLSv1.3 · DMARC

## Plans (1)

- **Servicefusion Plans Pricing**

## Tags

Field Service Management, FSM, Home Services, Contractors, Scheduling, Dispatch, Invoicing

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