Clear Books

Clear Books is UK cloud accounting software with a REST API for managing invoices, expenses, bank transactions, contacts, reports, and tax submissions for small businesses.

Clear Books publishes 1 API on the APIs.io network. Tagged areas include Accounting, Invoicing, Finance, UK, and Small Business.

The Clear Books catalog on APIs.io includes 1 JSON-LD context.

Clear Books’ developer surface includes documentation, engineering blog, pricing, and 9 more developer resources.

🌐 Visit website 📡 Source on GitHub

28.0/100 thin ▬ flat Agent 3/100 human only Full breakdown ↓
scored 2026-07-28 · rubric v0.6

AccessFreemium

1 APIs

AccountingInvoicingFinanceUKSmall BusinessMTDTax

Kin Score

Kin Score How this is scored →
scored 2026-07-28 · rubric v0.6

Composite quality — 28.0/100 · thin

Contract Quality 4.4 / 25

Developer Ergonomics 2.2 / 20

Commercial Clarity 10.0 / 20

Operational Transparency 5.5 / 13

Governance 0.0 / 12

Discoverability 5.9 / 10

Agent readiness — 3/100 · human only

Machine-Readable Contract 0 / 18

Agentic Access Contract 0 / 10

MCP Server 0 / 12

Machine-Readable Auth 0 / 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

Improve this rating by publishing the missing artifacts — every area above can be raised, and the full rubric is at apis.io/rating/. This rating is computed from github.com/api-evangelist/clearbooks: open an issue to ask a question, or submit a pull request to add artifacts. Want it done for you? Prioritized profiling — $2,500 →

APIs 1

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

Clear Books REST API

RESTful API for integrating with Clear Books accounting software to manage invoices, payments, contacts, bank transactions, and expenses.

Pricing Plans 1

Published pricing tiers and plan structures.

Clearbooks Plans Pricing

8 plans

PLANS

Rate Limits 1

Documented rate limits and quota policies.

Clearbooks Rate Limits

2 limits

RATE LIMITS

FinOps 1

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

Documentation 1

Reference material describing how the API behaves

Documentation

Documentation

Build 1

SDKs, sample code, and the tooling you integrate with

GitHubOrg

GitHubOrg

Access & Security 1

Authentication, authorization, and security posture

DomainSecurity

DomainSecurity

Operate 2

Status, limits, changes, and where to get help

StatusPage

StatusPage

RateLimits

RateLimits

Commercial 3

Pricing, plans, and the legal terms of use

Pricing

Pricing

Plans

Plans

FinOps

FinOps

Company 3

The organization behind the API

Website

Website

LinkedIn

Blog

Blog

Other 1

Properties that don't map to a standard resource type

Source (apis.yml)

aid: clearbooks
name: Clear Books
description: Clear Books is UK cloud accounting software with a REST API for managing invoices, expenses, bank transactions,
  contacts, reports, and tax submissions for small businesses.
accessModel:
  pricing: freemium
  onboarding: unknown
  trial: false
  try_now: false
  public: false
  label: Freemium
  confidence: medium
  source:
  - plans
  generated: '2026-07-22'
  method: derived
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/icons/clearbooks.png
url: https://raw.githubusercontent.com/api-evangelist/clearbooks/refs/heads/main/apis.yml
created: '2026-06-13'
modified: '2026-06-13'
specificationVersion: '0.19'
tags:
- Accounting
- Invoicing
- Finance
- UK
- Small Business
- MTD
- Tax
apis:
- name: Clear Books REST API
  description: RESTful API for integrating with Clear Books accounting software to manage invoices, payments, contacts, bank
    transactions, and expenses.
  image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/apis-json-logo.jpg
  humanURL: https://api-docs.clearbooks.co.uk/
  baseURL: https://api.clearbooks.co.uk/
  tags:
  - Accounting
  - Invoicing
  - Expenses
  - Contacts
  - Bank Transactions
  - Tax
  properties:
  - type: Documentation
    url: https://api-docs.clearbooks.co.uk/
  - type: Authentication
    url: https://oauth-helper.clearbooks.co.uk/
common:
- type: DomainSecurity
  url: security/clearbooks-domain-security.yml
- type: Website
  url: https://www.clearbooks.co.uk/
- type: Documentation
  url: https://api-docs.clearbooks.co.uk/
- type: GitHubOrg
  url: https://github.com/clearbooks
- type: LinkedIn
  url: https://www.linkedin.com/company/clear-books
- type: Blog
  url: https://www.clearbooks.co.uk/blog/
- type: Pricing
  url: https://www.clearbooks.co.uk/pricing/
- type: StatusPage
  url: https://status.clearbooks.co.uk/
- type: X
  url: https://twitter.com/ClearBooks
- type: Plans
  url: plans/clearbooks-plans-pricing.yml
- type: RateLimits
  url: rate-limits/clearbooks-rate-limits.yml
- type: FinOps
  url: finops/clearbooks-finops.yml
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com