Holded website screenshot

Holded

Holded is a cloud-based all-in-one business management platform from Spain (now part of Visma) that combines ERP, CRM, accounting, invoicing, inventory, project management, HR, and team collaboration features for small and medium-sized businesses. The Holded REST API provides programmatic access to invoicing, contacts, products, accounting, projects, employees, and CRM data using a simple API key authentication scheme over JSON.

Holded publishes 5 APIs on the APIs.io network, including Accounting API, Crm API, Invoicing API, and 2 more. Tagged areas include ERP, CRM, Accounting, Invoicing, and Business Management.

Holded’s developer surface includes authentication, documentation, pricing, signup flow, engineering blog, and 6 more developer resources.

🌐 Visit website 📡 Source on GitHub
27.9/100 emerging ▬ flat Agent 28/100 agent aware Full breakdown ↓
scored 2026-07-28 · rubric v0.6
AccessSelf serve
6 APIs
ERPCRMAccountingInvoicingBusiness ManagementSMBSpain

Kin Score

Kin Score Kin Score How this is scored →
scored 2026-07-28 · rubric v0.6
Composite quality — 27.9/100 · emerging
Contract Quality 13.4 / 25
Developer Ergonomics 4.3 / 20
Commercial Clarity 2.1 / 20
Operational Transparency 0.7 / 13
Governance 0.0 / 12
Discoverability 7.4 / 10
Agent readiness — 28/100 · agent aware
Machine-Readable Contract 18 / 18
Agentic Access Contract 10 / 10
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 0 / 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/holded: 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 6

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

Holded REST API

REST API for managing invoicing, contacts, products, accounting, projects, employees, and CRM records inside the Holded business management platform. Authentication uses an API ...

Holded Accounting API

The Accounting API from Holded — 1 operation(s) for accounting.

Holded Crm API

The Crm API from Holded — 2 operation(s) for crm.

Holded Invoicing API

The Invoicing API from Holded — 15 operation(s) for invoicing.

Holded Projects API

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

Holded Team API

The Team API from Holded — 2 operation(s) for team.

Open Collections 1

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

Holded REST API

OPEN COLLECTION

Security Posture 2

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

Holded Authentication

apiKey · 1 scheme

SECURITY

Holded Domain Security

TLSv1.3 · HSTS · DMARC

SECURITY

Agentic Access 1

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

Holded Agentic Access

42 operations · 20 acting

42 operations · 20 acting

AGENTIC

Resources

Get Started 1

Portal, sign-up, and the first successful call

Signup
Signup

Documentation 1

Reference material describing how the API behaves

Documentation
Documentation

Agent Surfaces 2

MCP servers, agent skills, and machine-readable catalogs

AgenticAccess
AgenticAccess
 LlmsText
LlmsText

Build 1

SDKs, sample code, and the tooling you integrate with

GitHubOrganization
GitHubOrganization

Access & Security 2

Authentication, authorization, and security posture

DomainSecurity
DomainSecurity
 Authentication
Authentication

Commercial 1

Pricing, plans, and the legal terms of use

Pricing
Pricing

Company 3

The organization behind the API

LinkedIn
LinkedIn
 Website
Website
 Blog
Blog

Source (apis.yml)

apis.yml Raw ↑ 
aid: holded
name: Holded
description: Holded is a cloud-based all-in-one business management platform from Spain (now part of Visma) that combines
  ERP, CRM, accounting, invoicing, inventory, project management, HR, and team collaboration features for small and medium-sized
  businesses. The Holded REST API provides programmatic access to invoicing, contacts, products, accounting, projects, employees,
  and CRM data using a simple API key authentication scheme over JSON.
type: Index
accessModel:
  pricing: unknown
  onboarding: self-serve
  trial: false
  try_now: false
  public: false
  label: Self-serve signup
  confidence: medium
  source:
  - authentication
  generated: '2026-07-22'
  method: derived
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/icons/holded.png
tags:
- ERP
- CRM
- Accounting
- Invoicing
- Business Management
- SMB
- Spain
url: https://raw.githubusercontent.com/api-evangelist/holded/refs/heads/main/apis.yml
created: '2026-05-11'
modified: '2026-05-11'
specificationVersion: '0.19'
apis:
- aid: holded:rest-api
  name: Holded REST API
  description: REST API for managing invoicing, contacts, products, accounting, projects, employees, and CRM records inside
    the Holded business management platform. Authentication uses an API key passed via the `key` header on every request.
  humanURL: https://developers.holded.com
  baseURL: https://api.holded.com/api
  tags:
  - ERP
  - CRM
  - Invoicing
  - Accounting
  - Inventory
  - Projects
  - HR
  properties:
  - type: Documentation
    url: https://developers.holded.com/reference
  - type: API Key Guide
    url: https://developers.holded.com/reference/api-key-1
  - type: Help Center
    url: https://help.holded.com/en/articles/6896051-how-to-generate-and-use-the-holded-api
- aid: holded:holded-accounting-api
  name: Holded Accounting API
  description: The Accounting API from Holded — 1 operation(s) for accounting.
  humanURL: https://developers.holded.com
  baseURL: https://api.holded.com/api
  tags:
  - Accounting
  properties:
  - type: OpenAPI
    url: openapi/holded-accounting-api-openapi.yml
- aid: holded:holded-crm-api
  name: Holded Crm API
  description: The Crm API from Holded — 2 operation(s) for crm.
  humanURL: https://developers.holded.com
  baseURL: https://api.holded.com/api
  tags:
  - Crm
  properties:
  - type: OpenAPI
    url: openapi/holded-crm-api-openapi.yml
- aid: holded:holded-invoicing-api
  name: Holded Invoicing API
  description: The Invoicing API from Holded — 15 operation(s) for invoicing.
  humanURL: https://developers.holded.com
  baseURL: https://api.holded.com/api
  tags:
  - Invoicing
  properties:
  - type: OpenAPI
    url: openapi/holded-invoicing-api-openapi.yml
- aid: holded:holded-projects-api
  name: Holded Projects API
  description: The Projects API from Holded — 2 operation(s) for projects.
  humanURL: https://developers.holded.com
  baseURL: https://api.holded.com/api
  tags:
  - Projects
  properties:
  - type: OpenAPI
    url: openapi/holded-projects-api-openapi.yml
- aid: holded:holded-team-api
  name: Holded Team API
  description: The Team API from Holded — 2 operation(s) for team.
  humanURL: https://developers.holded.com
  baseURL: https://api.holded.com/api
  tags:
  - Team
  properties:
  - type: OpenAPI
    url: openapi/holded-team-api-openapi.yml
common:
- type: AgenticAccess
  url: agentic-access/holded-agentic-access.yml
- type: DomainSecurity
  url: security/holded-domain-security.yml
- type: Authentication
  url: authentication/holded-authentication.yml
- type: GitHubOrganization
  url: https://github.com/holdedhub
- type: LinkedIn
  url: https://www.linkedin.com/company/holded
- type: Website
  url: https://www.holded.com
- type: Documentation
  url: https://developers.holded.com
- type: Pricing
  url: https://www.holded.com/pricing
- type: Signup
  url: https://app.holded.com/register
- type: LlmsText
  url: https://api.holded.com/llms.txt
- url: https://www.holded.com/en/blog
  type: Blog
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com