bexio

bexio is a Swiss cloud business-management platform for SMBs and self-employed, covering accounting, invoicing (incl. Swiss QR-bill), contacts, sales orders, projects and time tracking, banking, purchasing, and payroll. The bexio REST API at api.bexio.com/2.0 exposes these modules over HTTPS with JSON, secured by OAuth 2.0 (OpenID Connect) or Personal Access Tokens.

bexio publishes 9 API contracts indexed on the APIs.io network, including Accounting API, Banking API, Contacts API, and 6 more. Tagged areas include Accounting, ERP, Invoicing, Small Business, and Switzerland.

The bexio catalog on APIs.io includes 1 Spectral governance ruleset.

bexio’s developer surface includes authentication, documentation, engineering blog, changelog, API reference, getting-started guide, support, and 35 more developer resources.

🌐 Visit website 📡 Profile data on GitHub

40.4/100 developing ▬ flat Agent 40/100 agent ready Front door AI 1/6 silent Heartbeat 0/100 dormant saas Full breakdown ↓
scored 2026-11-06 · rubric v0.27.0 · Show this score on your site →

AccessFreemiumSelf serveFree trial⚡ Free to try

1 published contract 1 MCP Servers 3 Agent Skills

Accounting ERP Invoicing Small Business Switzerland

What this lets a business do 4

Business capabilities this provider's published APIs can perform, derived from its own contracts. Browse all capabilities →

Financial Management

BC-200

AccountingPurchase

GET /accounts POST /accounting/manual_entries GET /kb_bill GET /kb_expense

Human Capital Management

BC-300

Payroll

GET /payroll/employees GET /payroll/absences

Project & Portfolio Management

BC-900

Projects

POST /pr_project POST /timesheet

Customer Relationship Management

BC-420

Contacts

POST /contact

Kin Score

Kin Score How this is scored →
scored 2026-11-06 · rubric v0.27.0

Composite quality — 40.4/100 · developing

Contract Quality 0.2 / 19

Developer Ergonomics 7.6 / 15

Access Clarity 9.1 / 15

Operational Transparency 4.6 / 10

Contract Governance 1.6 / 9

Discoverability 4.9 / 8

Regulatory Posture 6.0 / 15

Create-or-Update Ergonomics 0.0 / 10

Agent readiness — 40/100 · agent ready

Machine-Readable Contract 18 / 18

Agentic Access Contract 10 / 10

Documented Reversibility 0 / 6

MCP Server 12 / 12

Machine-Readable Auth 10 / 10

Idempotency 0 / 9

Stable Error Semantics 8 / 8

Request/Response Examples 0 / 7

Rate-Limit Signaling 7 / 7

Typed Event Surface 0 / 6

Agent Skills 5 / 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 6 / 6

Agentic Commerce Well-Known Document 0 / 5

Pagination 5 / 5

Distinct Operations 3 / 3

MCP Tool Quality 6 / 6

Regulatory Posture applies to this provider. Its tags matched the Horizontal (data, software, accessibility, platform) regime, so Regulatory Posture carries 15 points of the composite. If this regime is wrong for your business, say so on your provider repo — the applicability map is public and we will correct it.

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.

The six quality facets above are damped to 75 points between them, because the conditional facet above carries the other 25. That is why each facet's contribution is shown against a damped maximum: raising a quality facet moves the composite by 75% of its nominal weight, not 100%. The full arithmetic is at apis.io/rating/.

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Agent readiness — checks not met, largest first (exact, from this profile):

Idempotency +9 pts — OpenAPI mutating operations declare an idempotency key — a header, a request-body property, or a named de-duplication token whose own description says so (verified); else common[].type matches /idempoten/i (documented)
A2A Agent Card +8 pts — a2a/-a2a.yml manifest, graded on conformance.grade against A2A 1.0.0
Request/Response Examples +7 pts — share of operations carrying request/response examples; else an Examples / Code Samples link
Typed Event Surface +6 pts — AsyncAPI document, OR webhooks/callbacks objects in the as-published OpenAPI, OR common[].type includes Webhooks
Documented Reversibility +6 pts — a reversal operation in the contract, graded up when a window is documented too
Protected Resource Metadata +5 pts — a served /.well-known/oauth-protected-resource carrying `resource` (documented), and naming its authorization_servers (verified)

4 more unmet checks in the Agent Readiness table above.

Kin Score — facets with the most composite points still available (weight × headroom):

Contract Quality scores 1.0 — up to +24.8 composite points
Developer Ergonomics scores 50.6 — up to +9.9 composite points
Contract Governance scores 18.2 — up to +9.8 composite points

Each check links to what satisfies it. Publish the artifact, or tell us where it already lives, and the score moves on the next scoring run.

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 the provider profile at artifacts.apis.io/bexio/apis.yml: open an issue on github.com/api-evangelist/bexio to ask a question or point us at an artifact you publish. Submit an artifact on GitHub — free → Manage your own listing — the Influence plan, $499/mo →

Standards implemented 4

Standards this provider implements or carries. De facto ones are profiled and measured by the API Commons; formal ones come from the standards directory and are linked by the provider's own tags. The evidence column says how each claim was established — not that it was made.

Model Context Protocol (MCP)

measured — observed by APIs.io (platform)

Dynamic Client Registration

measured — observed by APIs.io (published)

OpenAPI

measured — observed by APIs.io (published)

OAuth 2.0

measured — observed by APIs.io (declared)

APIs 9

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

bexio Accounting API

The Accounting API from bexio — 4 operation(s) for accounting.

bexio Banking API

The Banking API from bexio — 1 operation(s) for banking.

bexio Contacts API

The Contacts API from bexio — 2 operation(s) for contacts.

bexio Files API

The Files API from bexio — 1 operation(s) for files.

bexio Items API

The Items API from bexio — 1 operation(s) for items.

bexio Payroll API

The Payroll API from bexio — 2 operation(s) for payroll.

bexio Projects API

The Projects API from bexio — 2 operation(s) for projects.

bexio Purchase API

The Purchase API from bexio — 2 operation(s) for purchase.

bexio Sales Orders API

The Sales Orders API from bexio — 5 operation(s) for sales orders.

Scroll for all 9

Postman Collections 9

Ready-to-run Postman collections for exercising this provider's APIs.

bexio Accounting API

POSTMAN

bexio Accounting Banking API

POSTMAN

bexio Accounting Contacts API

POSTMAN

bexio Accounting Files API

POSTMAN

bexio Accounting Items API

POSTMAN

bexio Accounting Payroll API

POSTMAN

bexio Accounting Projects API

POSTMAN

bexio Accounting Purchase API

POSTMAN

bexio Accounting Sales Orders API

POSTMAN

Scroll for all 9

Open Collections 9

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

bexio Accounting API

OPEN COLLECTION

bexio Accounting Banking API

OPEN COLLECTION

bexio Accounting Contacts API

OPEN COLLECTION

bexio Accounting Files API

OPEN COLLECTION

bexio Accounting Items API

OPEN COLLECTION

bexio Accounting Payroll API

OPEN COLLECTION

bexio Accounting Projects API

OPEN COLLECTION

bexio Accounting Purchase API

OPEN COLLECTION

bexio Accounting Sales Orders API

OPEN COLLECTION

Scroll for all 9

MCP Servers 1

Model Context Protocol servers that expose these APIs to AI agents.

bexio MCP Server

MCP SERVER

Agent Skills 3

Packaged agent skills for driving this provider's APIs from an AI assistant.

Create a contact and issue an invoice

AGENT SKILL

Log billable time against a project

AGENT SKILL

Maintain the items/products catalog

AGENT SKILL

bexio API pricing

Not yet checked against bexio's own pricing page. Compiled by API Evangelist on 2026-07-17 from www.bexio.com/en-CH/packages-and-prices; confirm before you rely on a figure.

Plan	Price
Free Trial trial	—
Basic subscription	—
Advanced subscription	—
Optima subscription	—
Ultimate subscription	—

Plan details, limits and sources →

Rate limits

Requests Per Minute: see provider documentation requests
Pagination Page Size: 500 default / 2000 maximum records

Compiled by API Evangelist, not yet checked against bexio's documentation. Rate-limit details →

Pricing Plans 1

Published pricing tiers and plan structures.

Bexio Plans Pricing

5 plans

PLANS

Rate Limits 1

Documented rate limits and quota policies.

Bexio Rate Limits

2 limits

RATE LIMITS

Service Levels 1

Uptime the provider promises or reports, as SLA4OAI. Read from its own pages; APIs.io runs no monitors.

bexio

SLA

FinOps 1

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

Bexio Finops

FINOPS

Spectral Rules 1

Spectral governance rulesets for linting and validating these APIs.

bexio API Rules

54 rules · 52 errors 1 warnings 1 info

SPECTRAL

OpenAPI Overlays 1

Overlays applied on top of this provider's contracts. Each card says who wrote it: a document the provider publishes, or one API Evangelist derived or generated.

Bexio Openapi Overlay

4 actions · update · bexio-openapi.yml

DERIVED

Security Posture 4

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

Bexio Authentication

oauth2/http · 2 schemes

SECURITY

Bexio Domain Security

TLSv1.3

SECURITY

Bexio Vulnerability Disclosure

security.txt · contact published

SECURITY

Bexio Trust Center

ISO 27001, Swiss FADP (revDSG), GDPR

SECURITY

Scopes 1

OAuth scopes governing access to this provider's APIs.

Bexio Scopes

71 scopes

SCOPES

Agentic Access 1

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

Bexio Agentic Access

20 operations · 12 acting · 12 human-in-the-loop

20 operations · 12 acting

AGENTIC

Resources

Get Started 3

Portal, sign-up, and the first successful call

DeveloperPortal

DeveloperPortal

GettingStarted

GettingStarted

SignUp

SignUp

Documentation 2

Reference material describing how the API behaves

Documentation

Documentation

APIReference

APIReference

Agent Surfaces 5

MCP servers, agent skills, and machine-readable catalogs

AgenticAccess

WellKnown

MCPServer

LLMsTxt

AgentSkill

Design & Contract 5

Pagination, idempotency, versioning, errors, and events

Conformance

ErrorCatalog

Lifecycle

Conventions

DataModel

Build 4

SDKs, sample code, and the tooling you integrate with

PostmanWorkspace

PostmanWorkspace

GitHubOrganization

GitHubOrganization

Packages

Packages

Postman

Postman

Access & Security 8

Authentication, authorization, and security posture

TrustCenter

TrustCenter

VulnerabilityDisclosure

VulnerabilityDisclosure

DomainSecurity

Authentication

SecurityTxt

Security

Compliance

OAuthScopes

Scroll for all 8

Operate 5

Status, limits, changes, and where to get help

RateLimits

StatusPage

Deprecation

ChangeLog

Support

Commercial 5

Pricing, plans, and the legal terms of use

Plans

FinOps

Pricing

TermsOfService

PrivacyPolicy

Company 3

The organization behind the API

LinkedIn

Website

Website

Blog

Blog

Other 2

Properties that don't map to a standard resource type

CapabilityMap

CapabilityMap

Overlay

Overlay

Source (apis.yml)

aid: bexio
url: https://raw.githubusercontent.com/api-evangelist/bexio/refs/heads/main/apis.yml
name: bexio
kind: company
description: bexio is a Swiss cloud business-management platform for SMBs and self-employed, covering accounting, invoicing
  (incl. Swiss QR-bill), contacts, sales orders, projects and time tracking, banking, purchasing, and payroll. The bexio REST
  API at api.bexio.com/2.0 exposes these modules over HTTPS with JSON, secured by OAuth 2.0 (OpenID Connect) or Personal Access
  Tokens.
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: freemium
  onboarding: self-serve
  trial: true
  try_now: true
  public: false
  gated: none
  gated_source:
  - onboarding
  label: Freemium (free trial) · Self-serve signup
  confidence: high
  source:
  - plans
  - authentication
  - scopes
  - security
  generated: '2026-11-06'
  method: derived
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/icons/bexio.png
x-docs-platform: redocly
x-docs-platform-confidence: medium
x-docs-platform-checked: 2026-09-20
tags:
- Accounting
- ERP
- Invoicing
- Small Business
- Switzerland
tags_raw:
- Accounting
- ERP
- Invoicing
- SMB
- Switzerland
created: '2026-07-17'
modified: '2026-07-17'
specificationVersion: '0.23'
apis:
- aid: bexio:bexio-accounting-api
  name: bexio Accounting API
  description: The Accounting API from bexio — 4 operation(s) for accounting.
  humanURL: https://docs.bexio.com/
  baseURL: https://api.bexio.com/2.0
  tags:
  - Accounting
  properties:
  - type: OpenAPI
    url: openapi/bexio-accounting-api-openapi.yml
  - type: Documentation
    url: https://docs.bexio.com/
  - type: APIReference
    url: https://docs.bexio.com/
- aid: bexio:bexio-banking-api
  name: bexio Banking API
  description: The Banking API from bexio — 1 operation(s) for banking.
  humanURL: https://docs.bexio.com/
  baseURL: https://api.bexio.com/2.0
  tags:
  - Banking
  properties:
  - type: OpenAPI
    url: openapi/bexio-banking-api-openapi.yml
  - type: Documentation
    url: https://docs.bexio.com/
  - type: APIReference
    url: https://docs.bexio.com/
- aid: bexio:bexio-contacts-api
  name: bexio Contacts API
  description: The Contacts API from bexio — 2 operation(s) for contacts.
  humanURL: https://docs.bexio.com/
  baseURL: https://api.bexio.com/2.0
  tags:
  - Contacts
  properties:
  - type: OpenAPI
    url: openapi/bexio-contacts-api-openapi.yml
  - type: Documentation
    url: https://docs.bexio.com/
  - type: APIReference
    url: https://docs.bexio.com/
- aid: bexio:bexio-files-api
  name: bexio Files API
  description: The Files API from bexio — 1 operation(s) for files.
  humanURL: https://docs.bexio.com/
  baseURL: https://api.bexio.com/2.0
  tags:
  - File
  tags_raw:
  - Files
  properties:
  - type: OpenAPI
    url: openapi/bexio-files-api-openapi.yml
  - type: Documentation
    url: https://docs.bexio.com/
  - type: APIReference
    url: https://docs.bexio.com/
- aid: bexio:bexio-items-api
  name: bexio Items API
  description: The Items API from bexio — 1 operation(s) for items.
  humanURL: https://docs.bexio.com/
  baseURL: https://api.bexio.com/2.0
  tags:
  - Item
  tags_raw:
  - Items
  properties:
  - type: OpenAPI
    url: openapi/bexio-items-api-openapi.yml
  - type: Documentation
    url: https://docs.bexio.com/
  - type: APIReference
    url: https://docs.bexio.com/
- aid: bexio:bexio-payroll-api
  name: bexio Payroll API
  description: The Payroll API from bexio — 2 operation(s) for payroll.
  humanURL: https://docs.bexio.com/
  baseURL: https://api.bexio.com/2.0
  tags:
  - Payroll
  properties:
  - type: OpenAPI
    url: openapi/bexio-payroll-api-openapi.yml
  - type: Documentation
    url: https://docs.bexio.com/
  - type: APIReference
    url: https://docs.bexio.com/
- aid: bexio:bexio-projects-api
  name: bexio Projects API
  description: The Projects API from bexio — 2 operation(s) for projects.
  humanURL: https://docs.bexio.com/
  baseURL: https://api.bexio.com/2.0
  tags:
  - Project
  tags_raw:
  - Projects
  properties:
  - type: OpenAPI
    url: openapi/bexio-projects-api-openapi.yml
  - type: Documentation
    url: https://docs.bexio.com/
  - type: APIReference
    url: https://docs.bexio.com/
- aid: bexio:bexio-purchase-api
  name: bexio Purchase API
  description: The Purchase API from bexio — 2 operation(s) for purchase.
  humanURL: https://docs.bexio.com/
  baseURL: https://api.bexio.com/2.0
  tags:
  - Purchase
  properties:
  - type: OpenAPI
    url: openapi/bexio-purchase-api-openapi.yml
  - type: Documentation
    url: https://docs.bexio.com/
  - type: APIReference
    url: https://docs.bexio.com/
- aid: bexio:bexio-sales-orders-api
  name: bexio Sales Orders API
  description: The Sales Orders API from bexio — 5 operation(s) for sales orders.
  humanURL: https://docs.bexio.com/
  baseURL: https://api.bexio.com/2.0
  tags:
  - Sales Orders
  properties:
  - type: OpenAPI
    url: openapi/bexio-sales-orders-api-openapi.yml
  - type: Documentation
    url: https://docs.bexio.com/
  - type: APIReference
    url: https://docs.bexio.com/
common:
- type: CapabilityMap
  url: capabilities/bexio-capability-edges.yml
  name: bexio Business Capability Map
- type: PostmanWorkspace
  url: https://www.postman.com/kinlaneapi/bexio/overview
- type: AgenticAccess
  url: agentic-access/bexio-agentic-access.yml
- type: TrustCenter
  url: security/bexio-trust-center.yml
- type: VulnerabilityDisclosure
  url: security/bexio-vulnerability-disclosure.yml
- type: DomainSecurity
  url: security/bexio-domain-security.yml
- type: Authentication
  url: authentication/bexio-authentication.yml
- type: GitHubOrganization
  url: https://github.com/bexiocom
- type: LinkedIn
  url: https://www.linkedin.com/company/bexio-ag
- type: Website
  url: https://www.bexio.com/
- type: Documentation
  url: https://docs.bexio.com/
- type: Plans
  url: plans/bexio-plans-pricing.yml
- type: RateLimits
  url: rate-limits/bexio-rate-limits.yml
- type: FinOps
  url: finops/bexio-finops.yml
- url: https://www.bexio.com/en-CH/blog
  type: Blog
- type: WellKnown
  url: well-known/bexio-well-known.yml
- type: SecurityTxt
  url: well-known/bexio-security.txt
- type: Security
  url: https://www.bexio.com/en-CH/security
- type: Compliance
  url: https://www.bexio.com/en-CH/security
- type: OAuthScopes
  url: scopes/bexio-scopes.yml
- type: Packages
  url: packages/bexio-packages.yml
- type: MCPServer
  url: mcp/bexio-mcp.yml
- type: LLMsTxt
  url: llms/bexio-llms.txt
- type: Overlay
  url: overlays/bexio-openapi-overlay.yaml
- type: Conformance
  url: conformance/bexio-conformance.yml
- type: ErrorCatalog
  url: errors/bexio-problem-types.yml
- type: Lifecycle
  url: lifecycle/bexio-lifecycle.yml
- type: StatusPage
  url: https://bexio.statuspage.io
- type: Deprecation
  url: https://docs.bexio.com/
- type: ChangeLog
  url: changelog/bexio-changelog.yml
- type: Conventions
  url: conventions/bexio-conventions.yml
- type: DataModel
  url: data-model/bexio-data-model.yml
- type: AgentSkill
  url: skills/_index.yml
- type: Postman
  url: collections/bexio.postman_collection.json
- type: DeveloperPortal
  url: https://developer.bexio.com/
- type: APIReference
  url: https://developer.bexio.com/reference
- type: GettingStarted
  url: https://www.bexio.com/en-CH/quickstart-guide
- type: Support
  url: https://help.bexio.com/s/
- type: Pricing
  url: https://www.bexio.com/en-CH/packages-and-prices
- type: SignUp
  url: https://www.bexio.com/en-CH/
- type: TermsOfService
  url: https://www.bexio.com/en-CH/policies
- type: PrivacyPolicy
  url: https://www.bexio.com/en-CH/policies/privacy-policy
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com

bexio API — frequently asked questions

Does bexio have an API?

Yes. APIs.io lists 9 APIs from bexio, including bexio Accounting API, bexio Banking API and bexio Contacts API, and 6 more.

Is there an OpenAPI specification for the bexio API?

Yes. APIs.io indexes 9 OpenAPI specifications for bexio, each linked for download from this page.

How do I authenticate with the bexio API?

bexio documents its authentication (oauth2/http · 2 schemes). The details are profiled on APIs.io as Bexio Authentication.

How much does the bexio API cost?

APIs.io lists 5 pricing plans for bexio, with each plan's price, limits and inclusions under Pricing on this page.

Does bexio have an MCP server?

Yes. APIs.io lists 1 MCP server for bexio.

Is the bexio API ready for AI agents?

bexio has a Kin Score of 40.4 out of 100 (developing) and an Agent Readiness score of 39.9 (agent-ready), scored by API Evangelist on 2026-11-06.

Work with this as data

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