Carbone

Carbone is a document generation engine that uses Word, Excel, PowerPoint and ODF templates with JSON data to produce PDFs or office documents. The Carbone HTTP API offers a template-then-render workflow with both cloud (api.carbone.io) and on-prem deployments. The Carbone JS rendering engine is open-source and embeddable.

Carbone publishes 3 APIs on the APIs.io network: Render API, Status API, and Template API. Tagged areas include Document Generation, PDF, Templates, Open Source, and Office.

Carbone’s developer surface includes authentication, documentation, pricing, GitHub presence, engineering blog, and 7 more developer resources.

🌐 Visit website 📡 Source on GitHub

40.0/100 thin ▬ flat Agent 34/100 agent aware Full breakdown ↓
scored 2026-07-28 · rubric v0.6

AccessFreemiumSelf serveFree trial⚡ Free to try

6 APIs

Document GenerationPDFTemplatesOpen SourceOfficeDOCXXLSX

Kin Score

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

Composite quality — 40.0/100 · thin

Contract Quality 13.5 / 25

Developer Ergonomics 4.3 / 20

Commercial Clarity 10.0 / 20

Operational Transparency 4.8 / 13

Governance 0.0 / 12

Discoverability 7.4 / 10

Agent readiness — 34/100 · 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 7 / 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/carbone: 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.

Rate Limits 1

Documented rate limits and quota policies.

Carbone Rate Limits

4 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

Agent Surfaces 1

MCP servers, agent skills, and machine-readable catalogs

AgenticAccess

AgenticAccess

Build 1

SDKs, sample code, and the tooling you integrate with

GitHub

GitHub

Access & Security 2

Authentication, authorization, and security posture

DomainSecurity

DomainSecurity

Authentication

Authentication

Operate 1

Status, limits, changes, and where to get help

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

LinkedIn

Website

Website

Blog

Blog

Source (apis.yml)

aid: carbone
url: https://raw.githubusercontent.com/api-evangelist/carbone/refs/heads/main/apis.yml
name: Carbone
kind: company
description: Carbone is a document generation engine that uses Word, Excel, PowerPoint and ODF templates with JSON data to
  produce PDFs or office documents. The Carbone HTTP API offers a template-then-render workflow with both cloud (api.carbone.io)
  and on-prem deployments. The Carbone JS rendering engine is open-source and embeddable.
accessModel:
  pricing: freemium
  onboarding: self-serve
  trial: true
  try_now: true
  public: false
  label: Freemium (free trial) · 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/carbone.png
tags:
- Document Generation
- PDF
- Templates
- Open Source
- Office
- DOCX
- XLSX
created: '2026-05-08'
modified: '2026-05-08'
specificationVersion: '0.19'
apis:
- aid: carbone:cloud
  name: Carbone Cloud HTTP API
  description: Cloud-hosted Carbone API. Two flows — upload-once via POST /template then render with a template ID; or single-request
    inline-base64 render. Bearer-token auth (Authorization header). Sync and async via webhooks. Hosted on European providers
    (OVHCloud, Scaleway, BunnyCDN).
  image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/apis-json-logo.jpg
  humanURL: https://carbone.io/api-reference.html
  baseURL: https://api.carbone.io
  tags:
  - REST
  - Templates
  - Render
  - Async
  - Webhooks
  properties:
  - type: Documentation
    url: https://carbone.io/api-reference.html
  - type: Authentication
    url: https://carbone.io/api-reference.html#authentication
  - type: SDKs
    url: https://github.com/carboneio/carbone-sdk-js
- aid: carbone:on-prem
  name: Carbone On-Premises
  description: Self-hosted Carbone deployment exposing the same HTTP API. Auth disabled by default; enable via configuration.
    30-day free trial of paid features.
  image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/apis-json-logo.jpg
  humanURL: https://carbone.io/documentation.html
  baseURL: http://<your-host>:4000
  tags:
  - REST
  - Self-Hosted
  - On-Prem
  properties:
  - type: Documentation
    url: https://carbone.io/documentation.html
- aid: carbone:js
  name: Carbone Render Engine (Open Source)
  description: Open-source Node.js library that powers the rendering engine. Embed directly in your application; render templates
    with JSON data without hitting the cloud API.
  image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/apis-json-logo.jpg
  humanURL: https://github.com/carboneio/carbone
  baseURL: npm:carbone
  tags:
  - SDK
  - Open Source
  - Node.js
  properties:
  - type: SourceCode
    url: https://github.com/carboneio/carbone
  - type: Documentation
    url: https://carbone.io/documentation.html
- aid: carbone:carbone-render-api
  name: Carbone Render API
  description: The Render API from Carbone — 3 operation(s) for render.
  humanURL: https://carbone.io/api-reference.html
  baseURL: https://api.carbone.io
  tags:
  - Render
  properties:
  - type: OpenAPI
    url: openapi/carbone-render-api-openapi.yml
- aid: carbone:carbone-status-api
  name: Carbone Status API
  description: The Status API from Carbone — 1 operation(s) for status.
  humanURL: https://carbone.io/api-reference.html
  baseURL: https://api.carbone.io
  tags:
  - Status
  properties:
  - type: OpenAPI
    url: openapi/carbone-status-api-openapi.yml
- aid: carbone:carbone-template-api
  name: Carbone Template API
  description: The Template API from Carbone — 2 operation(s) for template.
  humanURL: https://carbone.io/api-reference.html
  baseURL: https://api.carbone.io
  tags:
  - Template
  properties:
  - type: OpenAPI
    url: openapi/carbone-template-api-openapi.yml
common:
- type: AgenticAccess
  url: agentic-access/carbone-agentic-access.yml
- type: DomainSecurity
  url: security/carbone-domain-security.yml
- type: Authentication
  url: authentication/carbone-authentication.yml
- type: LinkedIn
  url: https://www.linkedin.com/company/carboneio
- type: Website
  url: https://carbone.io/
- type: Documentation
  url: https://carbone.io/documentation.html
- type: Pricing
  url: https://carbone.io/pricing.html
- type: GitHub
  url: https://github.com/carboneio
- type: Plans
  url: plans/carbone-plans-pricing.yml
- type: RateLimits
  url: rate-limits/carbone-rate-limits.yml
- type: FinOps
  url: finops/carbone-finops.yml
- url: https://carbone.io/blog/
  type: Blog
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com

Carbone

Kin Score

APIs 6

Carbone Cloud HTTP API

Carbone On-Premises

Carbone Render Engine (Open Source)

Carbone Render API

Carbone Status API

Carbone Template API

Open Collections 1

Carbone Cloud HTTP API

Pricing Plans 1

Carbone Plans Pricing

Rate Limits 1

Carbone Rate Limits

FinOps 1

Carbone Finops

Security Posture 2

Carbone Authentication

Carbone Domain Security

Agentic Access 1

Carbone Agentic Access

Resources