Golden

Golden is a company-data and knowledge-graph platform that builds a continuously updated, citation-backed map of companies, technologies, people, and the relationships between them. The Golden Public API v2 gives developers programmatic, read access to that knowledge graph: retrieve entities and their properties, resolve the schema of entity types and predicates, and run natural-language Queries that return curated, source-cited lists of entities (for example, "companies in the artificial intelligence industry"). Authentication is via an API key passed in the `apikey` header, responses are cursor-paginated, and the API is documented with an OpenAPI 3.1 specification. Golden is backed by a16z and DCVC.

Golden publishes 1 API on the APIs.io network: Public API v2. Tagged areas include Company, Knowledge Graph, Company Data, Data, and Entities.

Golden’s developer surface includes documentation, API reference, getting-started guide, support, engineering blog, pricing, signup flow, and 15 more developer resources.

🌐 Visit website 📡 Source on GitHub
41.1/100 thin Agent 69/100 agent native Full breakdown ↓
scored 2026-07-20 · rubric v0.4
1 APIs 1 MCP Servers 0 Features
CompanyKnowledge GraphCompany DataDataEntitiesArtificial IntelligenceSearchBusiness Intelligence

API Rating

API Evangelist API Evangelist Rating How this is scored →
scored 2026-07-20 · rubric v0.4
Composite quality — 41.1/100 · thin
Contract Quality 9.4 / 25
Developer Ergonomics 13.5 / 20
Commercial Clarity 8.9 / 20
Operational Transparency 0.0 / 13
Governance 0.0 / 12
Discoverability 9.3 / 10
Agent readiness — 69/100 · agent native
Machine-Readable Contract 18 / 18
Agentic Access Contract 15 / 15
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 0 / 7
Typed Event Surface 0 / 6
Agent Skills 5 / 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/golden: 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

Golden Public API v2

Read access to the Golden knowledge graph — entities and their properties, entity-type and predicate schema, and natural-language Query results with citations. API-key authentic...

MCP Servers

golden-mcp.yml

MCP SERVER

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

MCPServer
MCPServer
 LLMsTxt
LLMsTxt
 AgentSkill
AgentSkill
 WellKnown
WellKnown
 AgenticAccess
AgenticAccess

Design & Contract 5

Pagination, idempotency, versioning, errors, and events

ErrorCatalog
ErrorCatalog
 Conventions
Conventions
 DataModel
DataModel
 Lifecycle
Lifecycle
 Conformance
Conformance

Access & Security 2

Authentication, authorization, and security posture

Authentication
Authentication
 DomainSecurity
DomainSecurity

Operate 1

Status, limits, changes, and where to get help

Support
Support

Commercial 3

Pricing, plans, and the legal terms of use

Pricing
Pricing
 TermsOfService
TermsOfService
 PrivacyPolicy
PrivacyPolicy

Company 1

The organization behind the API

Blog
Blog

Source (apis.yml)

apis.yml Raw ↑ 
aid: golden
name: Golden
description: 'Golden is a company-data and knowledge-graph platform that builds a continuously updated, citation-backed map
  of companies, technologies, people, and the relationships between them. The Golden Public API v2 gives developers programmatic,
  read access to that knowledge graph: retrieve entities and their properties, resolve the schema of entity types and predicates,
  and run natural-language Queries that return curated, source-cited lists of entities (for example, "companies in the artificial
  intelligence industry"). Authentication is via an API key passed in the `apikey` header, responses are cursor-paginated,
  and the API is documented with an OpenAPI 3.1 specification. Golden is backed by a16z and DCVC.'
image: https://golden.com/static/images/38d57130206f78fb48c9.png
url: https://raw.githubusercontent.com/api-evangelist/golden/refs/heads/main/apis.yml
x-type: company
x-source: vc-portfolio
x-backed-by:
- a16z
- dcvc
x-tier: stub
x-tier-reason: portfolio-lead
specificationVersion: '0.20'
created: '2026-07-17'
modified: '2026-07-19'
tags:
- Company
- Knowledge Graph
- Company Data
- Data
- Entities
- Artificial Intelligence
- Search
- Business Intelligence
apis:
- name: Golden Public API v2
  description: Read access to the Golden knowledge graph — entities and their properties, entity-type and predicate schema,
    and natural-language Query results with citations. API-key authenticated, cursor-paginated, OpenAPI 3.1 documented.
  humanURL: https://docs.golden.com
  baseURL: https://golden.com/api/v2/public
  tags:
  - Knowledge Graph
  - Company Data
  - Entities
  - Search
  properties:
  - type: OpenAPI
    url: openapi/golden-openapi-original.json
  - type: Overlay
    url: overlays/golden-openapi-overlay.yaml
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
common:
- type: DeveloperPortal
  url: https://docs.golden.com
- type: Documentation
  url: https://docs.golden.com
- type: APIReference
  url: https://docs.golden.com
- type: GettingStarted
  url: https://goldenhq.notion.site/goldenhq/Golden-Guide-1eef7518f3ca43da8d6ee4d54307801b
- type: Support
  url: https://golden.com/contact
- type: Blog
  url: https://golden.com/blog
- type: Pricing
  url: https://golden.com/pricing
- type: SignUp
  url: https://golden.com/login
- type: TermsOfService
  url: https://golden.com/about/terms-of-service
- type: PrivacyPolicy
  url: https://golden.com/about/privacy-policy
- type: Authentication
  url: authentication/golden-authentication.yml
- type: ErrorCatalog
  url: errors/golden-problem-types.yml
- type: Conventions
  url: conventions/golden-conventions.yml
- type: DataModel
  url: data-model/golden-data-model.yml
- type: Lifecycle
  url: lifecycle/golden-lifecycle.yml
- type: Conformance
  url: conformance/golden-conformance.yml
- type: MCPServer
  url: mcp/golden-mcp.yml
- type: LLMsTxt
  url: llms/golden-llms.txt
- type: AgentSkill
  url: skills/_index.yml
- type: WellKnown
  url: well-known/golden-well-known.yml
- type: AgenticAccess
  url: agentic-access/golden-agentic-access.yml
- type: DomainSecurity
  url: security/golden-domain-security.yml
x-enrichment:
  date: '2026-07-19'
  status: backfilled
  pass: local-v1
  note: backfilled from .gitignore signal + verified work evidence