Terrastruct

Terrastruct builds diagramming tools crafted to visualize software architecture. Its flagship product is D2, a modern, open-source (MPL-2.0) diagram scripting language that turns text into diagrams (SVG, PNG, PDF, PPTX, GIF, and ASCII). Terrastruct also builds D2 Studio, a hosted drag-and-drop and text-to-diagram IDE, and TALA, a proprietary layout engine designed specifically for software architecture diagrams. Rather than a public REST API, D2 is consumed as a CLI, as a Go library (d2lib / d2oracle) for programmatic diagram generation, and as a WASM-backed JavaScript library (D2.js), with official VSCode, Vim, and Obsidian editor plugins.

Terrastruct is profiled on the APIs.io network. Tagged areas include Company, Diagramming, Diagrams as Code, Developer Tools, and Software Architecture.

Terrastruct’s developer surface includes documentation, getting-started guide, engineering blog, support, CLI, changelog, and 15 more developer resources.

🌐 Visit website 📡 Source on GitHub

28.7/100 emerging ▬ flat Agent 4/100 human only Full breakdown ↓
scored 2026-07-27 · rubric v0.5

0 APIs

CompanyDiagrammingDiagrams as CodeDeveloper ToolsSoftware ArchitectureOpen SourceData VisualizationCLI

Kin Score

Kin Score How this is scored →
scored 2026-07-27 · rubric v0.5

Composite quality — 28.7/100 · emerging

Contract Quality 0.0 / 25

Developer Ergonomics 7.8 / 20

Commercial Clarity 10.0 / 20

Operational Transparency 4.1 / 13

Governance 0.0 / 12

Discoverability 6.8 / 10

Agent readiness — 4/100 · human only

Machine-Readable Contract 0 / 18

Agentic Access Contract 0 / 15

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 0 / 7

Typed Event Surface 0 / 6

Agent Skills 0 / 5

Well-Known Catalog 4 / 4

Consent & Bot Identity 0 / 3

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/terrastruct: open an issue to ask a question, or submit a pull request to add artifacts. Want it done for you? Prioritized profiling — $2,500 →

Get Started 2

Portal, sign-up, and the first successful call

GettingStarted

GettingStarted

Login

Documentation 1

Reference material describing how the API behaves

Documentation

Documentation

Agent Surfaces 2

MCP servers, agent skills, and machine-readable catalogs

WellKnown

WellKnown

LLMsTxt

LLMsTxt

Design & Contract 1

Pagination, idempotency, versioning, errors, and events

Components

Components

Build 4

SDKs, sample code, and the tooling you integrate with

GitHubOrganization

Packages

SDKs

CLI

Access & Security 5

Authentication, authorization, and security posture

DomainSecurity

DomainSecurity

VulnerabilityDisclosure

VulnerabilityDisclosure

Security

Security

TrustCenter

TrustCenter

Compliance

Compliance

Operate 2

Status, limits, changes, and where to get help

Support

Support

ChangeLog

ChangeLog

Commercial 2

Pricing, plans, and the legal terms of use

TermsOfService

TermsOfService

PrivacyPolicy

PrivacyPolicy

Company 2

The organization behind the API

Website

Website

Blog

Blog

Source (apis.yml)

aid: terrastruct
name: Terrastruct
description: Terrastruct builds diagramming tools crafted to visualize software architecture. Its flagship product is D2,
  a modern, open-source (MPL-2.0) diagram scripting language that turns text into diagrams (SVG, PNG, PDF, PPTX, GIF, and
  ASCII). Terrastruct also builds D2 Studio, a hosted drag-and-drop and text-to-diagram IDE, and TALA, a proprietary layout
  engine designed specifically for software architecture diagrams. Rather than a public REST API, D2 is consumed as a CLI,
  as a Go library (d2lib / d2oracle) for programmatic diagram generation, and as a WASM-backed JavaScript library (D2.js),
  with official VSCode, Vim, and Obsidian editor plugins.
accessModel:
  pricing: unknown
  onboarding: unknown
  trial: false
  try_now: false
  public: false
  label: Unknown
  confidence: low
  source: []
  generated: '2026-07-22'
  method: derived
image: https://terrastruct.com/images/logos/logo_black.svg
url: https://raw.githubusercontent.com/api-evangelist/terrastruct/refs/heads/main/apis.yml
x-type: company
x-source: vc-portfolio
x-backed-by:
- bloomberg-beta
x-tier: stub
x-tier-reason: portfolio-lead
specificationVersion: '0.20'
created: '2026-07-17'
modified: '2026-07-21'
tags:
- Company
- Diagramming
- Diagrams as Code
- Developer Tools
- Software Architecture
- Open Source
- Data Visualization
- CLI
apis: []
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
common:
- type: Website
  url: https://terrastruct.com/
- type: Documentation
  url: https://d2lang.com
- type: GettingStarted
  url: https://d2lang.com/tour/intro/
- type: GitHubOrganization
  url: https://github.com/terrastruct
- type: Blog
  url: https://terrastruct.com/blog/1
- type: Support
  url: https://terrastruct.com/support
- type: Login
  url: https://app.terrastruct.com/
- type: TermsOfService
  url: https://terrastruct.com/terms-and-conditions
- type: PrivacyPolicy
  url: https://terrastruct.com/privacy-policy
- type: Packages
  url: packages/terrastruct-packages.yml
- type: SDKs
  url: packages/terrastruct-packages.yml
- type: CLI
  url: cli/terrastruct-cli.yml
- type: Components
  url: components/terrastruct-components.yml
- type: ChangeLog
  url: changelog/terrastruct-changelog.yml
- type: WellKnown
  url: well-known/terrastruct-well-known.yml
- type: DomainSecurity
  url: security/terrastruct-domain-security.yml
- type: VulnerabilityDisclosure
  url: security/terrastruct-vulnerability-disclosure.yml
- type: Security
  url: security/terrastruct-vulnerability-disclosure.yml
- type: TrustCenter
  url: security/terrastruct-trust-center.yml
- type: Compliance
  url: security/terrastruct-trust-center.yml
- type: LLMsTxt
  url: llms/terrastruct-llms.txt
x-enrichment:
  date: '2026-07-21'
  status: enriched
  artifacts_added: 9
  pass: local-v1