Service Fusion

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.

Service Fusion publishes 9 APIs on the APIs.io network, including Calendar Tasks API, Contacts API, Customers API, and 6 more. Tagged areas include Field Service Management, FSM, Home Services, Contractors, and Scheduling.

Service Fusion’s developer surface includes authentication, documentation, engineering blog, and 8 more developer resources.

🌐 Visit website 📡 Source on GitHub

38.3/100 thin ▬ flat Agent 25/100 agent aware saas Full breakdown ↓
scored 2026-09-08 · rubric v0.20.0

AccessPaidSelf serve

1 APIs

Field Service Management FSM Home Services Contractors Scheduling Dispatch Invoicing

Kin Score

Kin Score How this is scored →
scored 2026-09-08 · rubric v0.20.0

Composite quality — 38.3/100 · thin

Contract Quality 12.4 / 23

Developer Ergonomics 5.8 / 18

Access Clarity 7.1 / 18

Operational Transparency 3.7 / 12

Contract Governance 0.0 / 11

Discoverability 6.2 / 9

Create-or-Update Ergonomics 0.0 / 10

Agent readiness — 25/100 · agent aware

Machine-Readable Contract 18 / 18

Agentic Access Contract 10 / 10

Documented Reversibility 0 / 6

MCP Server 0 / 12

Machine-Readable Auth 10 / 10

Idempotency 0 / 9

Stable Error Semantics 0 / 8

Request/Response Examples 0 / 7

Rate-Limit Signaling 7 / 7

Typed Event Surface 0 / 6

Agent Skills 0 / 5

Well-Known Catalog 0 / 4

Consent & Bot Identity 0 / 3

A2A Agent Card 0 / 8

Dry-Run / Simulate Mode 0 / 4

Delegated User Identity 6 / 6

Protected Resource Metadata 0 / 5

Registration Without a Human 0 / 6

Agentic Commerce Well-Known Document 0 / 5

Create-or-Update Ergonomics applies to this provider. This API accepts writes, so it carries 10 points of the composite. It is scored from the published contracts themselves: whether a caller can create-or-update in one call, whether the write accepts a key the caller already holds, and whether the response says which branch ran. Without that, every write needs a search-and-branch in front of it, and the first time that check is skipped a duplicate record is created. Scored against the observed mean rather than raw — a provider at the catalog average is unchanged by this facet, not penalised by it.

Improve this rating by publishing the missing artifacts — every area above can be raised, and the full rubric is at apis.io/rating/. Every facet and dimension name above is a link: it opens that measurement's own page — what it means, the exact checks that feed it, how the whole catalog distributes on it, and the providers at the top of it. This rating is computed from github.com/api-evangelist/servicefusion: open an issue to ask a question, or submit a pull request to add artifacts. Submit an artifact on GitHub — free → Manage your own listing — the Influence plan, $499/mo →

APIs 9

Individual APIs this provider publishes, each with its own machine-readable definition.

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.

Scroll for all 9

Open Collections 11

Open, tool-agnostic API collections (OpenAPI-derived and Bruno).

API Collection

OPEN COLLECTION

Service Fusion Open Calendar Tasks API

OPEN COLLECTION

Service Fusion Open Calendar Tasks Contacts API

OPEN COLLECTION

Service Fusion Open Calendar Tasks Customers API

OPEN COLLECTION

Service Fusion Open Calendar Tasks Estimates API

OPEN COLLECTION

Service Fusion Open Calendar Tasks Invoices API

OPEN COLLECTION

Service Fusion Open Calendar Tasks Jobs API

OPEN COLLECTION

Service Fusion Open Calendar Tasks Payments API

OPEN COLLECTION

Service Fusion Open Calendar Tasks Products and Services API

OPEN COLLECTION

Service Fusion Open Calendar Tasks Techs and Users API

OPEN COLLECTION

Service Fusion Open API

OPEN COLLECTION

Scroll for all 11

Pricing Plans 1

Published pricing tiers and plan structures.

Servicefusion Plans Pricing

3 plans

PLANS

Rate Limits 1

Documented rate limits and quota policies.

Servicefusion Rate Limits

4 limits

RATE LIMITS

FinOps 1

Cost, billing, and metering signals for API financial operations.

Servicefusion Finops

FINOPS

Security Posture 2

Authentication, domain security, vulnerability disclosure, and trust-center signals.

Servicefusion Authentication

http/oauth2 · 2 schemes

SECURITY

Servicefusion Domain Security

TLSv1.3 · DMARC

SECURITY

Scopes 1

OAuth scopes governing access to this provider's APIs.

Servicefusion Scopes

OAuth 2.0 · no documented scopes

0 scopes

SCOPES

Agentic Access 1

Recommended x-agentic-access execution contracts for AI agents.

Servicefusion Agentic Access

24 operations · 9 acting

AGENTIC

Resources

Documentation 1

Reference material describing how the API behaves

Documentation

Documentation

Agent Surfaces 1

MCP servers, agent skills, and machine-readable catalogs

AgenticAccess

AgenticAccess

Access & Security 3

Authentication, authorization, and security posture

DomainSecurity

DomainSecurity

Authentication

Authentication

OAuthScopes

OAuthScopes

Operate 1

Status, limits, changes, and where to get help

RateLimits

RateLimits

Commercial 2

Pricing, plans, and the legal terms of use

Plans

Plans

FinOps

FinOps

Company 3

The organization behind the API

LinkedIn

Website

Website

Blog

Blog

Source (apis.yml)

aid: servicefusion
url: https://raw.githubusercontent.com/api-evangelist/servicefusion/refs/heads/main/apis.yml
name: Service Fusion
kind: company
description: 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.
deliveryModel:
  model: saas
  open_source: false
  commercial: true
  callable_host: true
  label: Hosted service · you call their endpoint
  confidence: high
  source:
  - openapi
  - pricing
  generated: '2026-08-28'
  method: derived
accessModel:
  pricing: paid
  onboarding: self-serve
  trial: false
  try_now: false
  public: false
  label: Paid · Self-serve signup
  confidence: high
  source:
  - plans
  - authentication
  generated: '2026-07-22'
  method: derived
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/icons/servicefusion.png
tags:
- Field Service Management
- FSM
- Home Services
- Contractors
- Scheduling
- Dispatch
- Invoicing
created: '2026-07-03'
modified: '2026-07-03'
specificationVersion: '0.23'
apis:
- aid: servicefusion:servicefusion-calendar-tasks-api
  name: Service Fusion Calendar Tasks API
  description: Non-job scheduled calendar items and reminders.
  humanURL: https://docs.servicefusion.com/
  baseURL: https://api.servicefusion.com/v1
  tags:
  - Calendar Tasks
  properties:
  - type: OpenAPI
    url: openapi/servicefusion-calendar-tasks-api-openapi.yml
  - type: Documentation
    url: https://docs.servicefusion.com/
  - type: APIReference
    url: https://docs.servicefusion.com/
  - type: PostmanCollection
    url: collections/servicefusion.postman_collection.json
  - type: OpenCollection
    url: collections/servicefusion.opencollection.json
- aid: servicefusion:servicefusion-contacts-api
  name: Service Fusion Contacts API
  description: Individual contacts and service locations on a customer account.
  humanURL: https://docs.servicefusion.com/
  baseURL: https://api.servicefusion.com/v1
  tags:
  - Contacts
  properties:
  - type: OpenAPI
    url: openapi/servicefusion-contacts-api-openapi.yml
  - type: Documentation
    url: https://docs.servicefusion.com/
  - type: APIReference
    url: https://docs.servicefusion.com/
  - type: PostmanCollection
    url: collections/servicefusion.postman_collection.json
  - type: OpenCollection
    url: collections/servicefusion.opencollection.json
- aid: servicefusion:servicefusion-customers-api
  name: Service Fusion Customers API
  description: Customer accounts served by the contractor.
  humanURL: https://docs.servicefusion.com/
  baseURL: https://api.servicefusion.com/v1
  tags:
  - Customers
  properties:
  - type: OpenAPI
    url: openapi/servicefusion-customers-api-openapi.yml
  - type: Documentation
    url: https://docs.servicefusion.com/
  - type: APIReference
    url: https://docs.servicefusion.com/
  - type: PostmanCollection
    url: collections/servicefusion.postman_collection.json
  - type: OpenCollection
    url: collections/servicefusion.opencollection.json
- aid: servicefusion:servicefusion-estimates-api
  name: Service Fusion Estimates API
  description: Estimates (quotes) presented to customers before work begins.
  humanURL: https://docs.servicefusion.com/
  baseURL: https://api.servicefusion.com/v1
  tags:
  - Estimates
  properties:
  - type: OpenAPI
    url: openapi/servicefusion-estimates-api-openapi.yml
  - type: Documentation
    url: https://docs.servicefusion.com/
  - type: APIReference
    url: https://docs.servicefusion.com/
  - type: PostmanCollection
    url: collections/servicefusion.postman_collection.json
  - type: OpenCollection
    url: collections/servicefusion.opencollection.json
- aid: servicefusion:servicefusion-invoices-api
  name: Service Fusion Invoices API
  description: Invoices billed to customers for completed work.
  humanURL: https://docs.servicefusion.com/
  baseURL: https://api.servicefusion.com/v1
  tags:
  - Invoices
  properties:
  - type: OpenAPI
    url: openapi/servicefusion-invoices-api-openapi.yml
  - type: Documentation
    url: https://docs.servicefusion.com/
  - type: APIReference
    url: https://docs.servicefusion.com/
  - type: PostmanCollection
    url: collections/servicefusion.postman_collection.json
  - type: OpenCollection
    url: collections/servicefusion.opencollection.json
- aid: servicefusion:servicefusion-jobs-api
  name: Service Fusion Jobs API
  description: Jobs (work orders) scheduled and dispatched to technicians.
  humanURL: https://docs.servicefusion.com/
  baseURL: https://api.servicefusion.com/v1
  tags:
  - Job
  tags_raw:
  - Jobs
  properties:
  - type: OpenAPI
    url: openapi/servicefusion-jobs-api-openapi.yml
  - type: Documentation
    url: https://docs.servicefusion.com/
  - type: APIReference
    url: https://docs.servicefusion.com/
  - type: PostmanCollection
    url: collections/servicefusion.postman_collection.json
  - type: OpenCollection
    url: collections/servicefusion.opencollection.json
- aid: servicefusion:servicefusion-payments-api
  name: Service Fusion Payments API
  description: Payments applied against invoices.
  humanURL: https://docs.servicefusion.com/
  baseURL: https://api.servicefusion.com/v1
  tags:
  - Payments
  properties:
  - type: OpenAPI
    url: openapi/servicefusion-payments-api-openapi.yml
  - type: Documentation
    url: https://docs.servicefusion.com/
  - type: APIReference
    url: https://docs.servicefusion.com/
  - type: PostmanCollection
    url: collections/servicefusion.postman_collection.json
  - type: OpenCollection
    url: collections/servicefusion.opencollection.json
- aid: servicefusion:servicefusion-products-and-services-api
  name: Service Fusion Products and Services API
  description: Catalog of products (parts/inventory) and services (labor/tasks).
  humanURL: https://docs.servicefusion.com/
  baseURL: https://api.servicefusion.com/v1
  tags:
  - Products and Services
  properties:
  - type: OpenAPI
    url: openapi/servicefusion-products-and-services-api-openapi.yml
  - type: Documentation
    url: https://docs.servicefusion.com/
  - type: APIReference
    url: https://docs.servicefusion.com/
  - type: PostmanCollection
    url: collections/servicefusion.postman_collection.json
  - type: OpenCollection
    url: collections/servicefusion.opencollection.json
- aid: servicefusion:servicefusion-techs-and-users-api
  name: Service Fusion Techs and Users API
  description: Technicians and users the work is assigned to.
  humanURL: https://docs.servicefusion.com/
  baseURL: https://api.servicefusion.com/v1
  tags:
  - Techs and Users
  properties:
  - type: OpenAPI
    url: openapi/servicefusion-techs-and-users-api-openapi.yml
  - type: Documentation
    url: https://docs.servicefusion.com/
  - type: APIReference
    url: https://docs.servicefusion.com/
  - type: PostmanCollection
    url: collections/servicefusion.postman_collection.json
  - type: OpenCollection
    url: collections/servicefusion.opencollection.json
common:
- type: AgenticAccess
  url: agentic-access/servicefusion-agentic-access.yml
- type: DomainSecurity
  url: security/servicefusion-domain-security.yml
- type: Authentication
  url: authentication/servicefusion-authentication.yml
- type: OAuthScopes
  url: scopes/servicefusion-scopes.yml
- type: LinkedIn
  url: https://www.linkedin.com/company/service-fusion
- type: Website
  url: https://www.servicefusion.com
- type: Documentation
  url: https://docs.servicefusion.com/
- type: Plans
  url: plans/servicefusion-plans-pricing.yml
- type: RateLimits
  url: rate-limits/servicefusion-rate-limits.yml
- type: FinOps
  url: finops/servicefusion-finops.yml
- type: Blog
  url: https://www.servicefusion.com/blog/feed/
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com

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