FreshBooks
FreshBooks is a cloud-based accounting and small business management platform offering invoicing, expense tracking, time tracking, project management, payments, estimates, and financial reporting for freelancers, self-employed professionals, and small businesses. The FreshBooks REST API provides access to clients, invoices, expenses, estimates, projects, time entries, payments, and reports using OAuth 2.0 Bearer token authentication.
Limited machine-readable signal and partial portal coverage — documentation a human can read, but little a machine or agent can consume without scraping.
API Evangelist profiles FreshBooks the way a machine reads it — 31 machine-readable artifacts across 1 API, pulled from the provider's own public surface and indexed so a developer, an analyst, or an AI agent can evaluate it against every other provider on the network.
Every provider in the network is reduced to the same set of machine-readable artifacts — OpenAPI contracts, event specifications, GraphQL schemas, runnable collections, pricing and rate-limit signals, security posture, OAuth scopes, and the agent surfaces (MCP servers and skills) that let software drive the API on its own. We profile them because the interface is the part of a company you can actually inspect: it is a truer signal of what a provider does than any marketing page. From those artifacts we compute the Kin Score — FreshBooks scores 32.2/100 (thin), with a separate agent-readiness read of 18/100 (agent aware). The full breakdown is below, followed by every artifact we hold — each card links through to its machine-readable definition on apis.io.
Kin Score
This is the API Evangelist rating — a single, repeatable read computed from the artifacts on this page. Green fill is points earned; the red track is points possible, so every bar shows earned-versus-possible at a glance. Every facet and dimension name is a link: it opens that measurement's page on APIs.io, where the rating runs across the whole catalog — the exact checks that feed it, how every profiled provider distributes on it, and who is at the top of it.
Kin Score
How this is scored →scored 2026-09-08 · rubric v0.20.0
Put this on your own site. The badge is drawn live from FreshBooks's current Kin Score — paste it once and it updates itself every time the score is recomputed. It follows your visitor's light or dark setting, and it links back here so anyone who sees it can read the full breakdown.
<!-- Kin Score · API Evangelist -->
<a href="https://providers.apievangelist.com/providers/freshbooks/"
title="FreshBooks on API Evangelist — API profile and Kin Score">
<img src="https://apis.io/badge/freshbooks.svg"
alt="FreshBooks Kin Score — API readiness rating by API Evangelist" width="150" height="150" loading="lazy">
</a>[](https://providers.apievangelist.com/providers/freshbooks/)<!-- Kin Score · API Evangelist -->
<a href="https://providers.apievangelist.com/providers/freshbooks/"
title="FreshBooks on API Evangelist — API profile and Kin Score">
<img src="https://apis.io/badge/freshbooks/card.svg"
alt="FreshBooks Kin Score — API readiness rating by API Evangelist" width="340" height="120" loading="lazy">
</a>More shapes, themes and sizes → · Score as JSON · How badges work
How we profile FreshBooks
Each block below is one kind of artifact we hold for FreshBooks. For each we say what it is and why it earns a place in the profile, then list every one we've indexed — capped at two rows, scroll within the panel for the rest.
APIs 13
Each API is captured as its own OpenAPI definition — every operation, parameter, and response. This is the single most useful machine-readable description of what an API does, and it's what lets us score, lint, mock, and generate against it without asking the provider for anything.
Individual APIs this provider publishes, each with its own machine-readable definition.
FreshBooks REST API
REST API for FreshBooks providing CRUD access to clients, invoices, estimates, expenses, projects, time entries, tasks, payments, items, taxes, and accounting reports. Uses OAut...
FreshBooks Webhooks (Callbacks API)
Event delivery surface for the FreshBooks Callbacks API. Subscribers register an HTTPS endpoint, complete a verifier handshake, and then receive HMAC-SHA256 signed POSTs (applic...
FreshBooks Auth API
The Auth API from FreshBooks — 1 operation(s) for auth.
FreshBooks Clients API
The Clients API from FreshBooks — 2 operation(s) for clients.
FreshBooks Estimates API
The Estimates API from FreshBooks — 1 operation(s) for estimates.
FreshBooks Expenses API
The Expenses API from FreshBooks — 2 operation(s) for expenses.
FreshBooks Invoices API
The Invoices API from FreshBooks — 2 operation(s) for invoices.
FreshBooks Items API
The Items API from FreshBooks — 1 operation(s) for items.
FreshBooks Payments API
The Payments API from FreshBooks — 1 operation(s) for payments.
FreshBooks Projects API
The Projects API from FreshBooks — 1 operation(s) for projects.
FreshBooks Tasks API
The Tasks API from FreshBooks — 1 operation(s) for tasks.
FreshBooks Taxes API
The Taxes API from FreshBooks — 1 operation(s) for taxes.
FreshBooks TimeEntries API
The TimeEntries API from FreshBooks — 1 operation(s) for timeentries.
Scroll within the panel for all 13 ·
Open Collections 13
Open, tool-agnostic collections carry the same runnable value as Postman without locking you to one client — the portable, forkable form of the same exercise.
Open, tool-agnostic API collections (OpenAPI-derived and Bruno).
API Collection
OPEN COLLECTIONFreshBooks REST Auth API
OPEN COLLECTIONFreshBooks REST Auth Clients API
OPEN COLLECTIONFreshBooks REST Auth Estimates API
OPEN COLLECTIONFreshBooks REST Auth Expenses API
OPEN COLLECTIONFreshBooks REST Auth Invoices API
OPEN COLLECTIONFreshBooks REST Auth Items API
OPEN COLLECTIONFreshBooks REST Auth Payments API
OPEN COLLECTIONFreshBooks REST Auth Projects API
OPEN COLLECTIONFreshBooks REST Auth Tasks API
OPEN COLLECTIONFreshBooks REST Auth Taxes API
OPEN COLLECTIONFreshBooks REST Auth TimeEntries API
OPEN COLLECTIONFreshBooks REST API
OPEN COLLECTIONScroll within the panel for all 13 ·
Event Specifications 1
Not every API is request/response. AsyncAPI describes the event-driven and streaming side — the webhooks and channels — so the asynchronous half of the interface is documented the same way the synchronous half is.
AsyncAPI definitions for this provider's event-driven and streaming APIs.
FreshBooks Webhooks (Callbacks API)
Best-effort AsyncAPI 2.6 description of the FreshBooks Webhooks (Callbacks API) surface. FreshBooks delivers webhook notifications as HTTP POST requests with an `application/x-w...
ASYNCAPISpectral Rules 1
Governance rulesets we run against this provider's specs — the automated checks behind parts of the score. Profiling them makes the quality bar explicit and re-runnable, not a matter of opinion.
FreshBooks API Rules
SPECTRALSecurity Posture 2
Authentication, domain security, vulnerability disclosure, and trust-center signals — the evidence that a provider takes security seriously enough to document it. We profile it because you can't govern what you can't see.
Authentication, domain security, vulnerability disclosure, and trust-center signals.
Agentic Access 1
An x-agentic-access contract marks which operations are safe for an agent to run on its own and which need a human in the loop. It is the difference between an API an agent can use and one it can use safely.
Recommended x-agentic-access execution contracts for AI agents.
Resources
Every other property we hold for FreshBooks — documentation, portals, status pages, policies, and corporate surface — grouped by the job it does, following the integrator's arc from getting started to running in production.
Get Started 3
Portal, sign-up, and the first successful call
Documentation 1
Reference material describing how the API behaves
Agent Surfaces 1
MCP servers, agent skills, and machine-readable catalogs
Build 1
SDKs, sample code, and the tooling you integrate with
Access & Security 2
Authentication, authorization, and security posture
Operate 1
Status, limits, changes, and where to get help
Commercial 1
Pricing, plans, and the legal terms of use
Company 3
The organization behind the API
← All providers · Data indexed from github.com/api-evangelist/freshbooks · machine-readable index on apis.io
This is an independent, third-party profile of FreshBooks, published by API Evangelist. We do not operate, host, resell, or support these APIs, and we are not affiliated with or endorsed by the company unless stated above. Everything here is built from publicly available information — the company's own site, developer portal, documentation, public repositories, and the specifications it publishes for public use. Nothing is obtained by breaching a system, defeating an access control, or using credentials.
The Kin Score and Agent Readiness rating are independently calculated assessments of a company's public API artifacts, scored against a published rubric. They are not certifications, endorsements, security assessments, or audits.
Corrections, re-scores, and removal are free — no partnership or purchase required, and you do not need to justify the request. A removed company is recorded as unrated, never scored zero for having asked. Acknowledgement within one business day; removal within two.
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you will get a person, not a form — we will tell you exactly which public URLs this profile was built from.