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 was founded in San Francisco in 2017 by Jude Gomila, raised roughly $59.5M led by a16z with DCVC, Founders Fund, Gigafund and SV Angel participating, and was acquired by financial- crime-intelligence firm ComplyAdvantage in April 2024; the product site, self-serve plans and the Public API v2 host remain live and reachable.

Golden publishes 3 API contracts indexed on the APIs.io network: Entity API, Query API, and Schema API. Tagged areas include Company, Knowledge Graph, Company Data, Data, and Entities.

Golden’s developer surface includes engineering blog, documentation, API reference, getting-started guide, support, pricing, signup flow, and 21 more developer resources.

🌐 Visit website 📡 Profile data on GitHub

48.4/100 developing ▬ flat Agent 35/100 agent ready Front door AI 4/6 moderate saas Full breakdown ↓
scored 2026-10-31 · rubric v0.25.0 · Show this score on your site →

AccessFreemiumSelf serve⚡ Free to try

1 published contract 3 Agent Skills

Company Knowledge Graph Company Data Data Entities Artificial Intelligence Search Business Intelligence

Kin Score

Kin Score How this is scored →
scored 2026-10-31 · rubric v0.25.0

Composite quality — 48.4/100 · developing

Contract Quality 10.5 / 21

Developer Ergonomics 10.0 / 17

Access Clarity 13.0 / 17

Operational Transparency 0.6 / 11

Contract Governance 0.5 / 10

Discoverability 5.6 / 9

Regulatory Posture 3.4 / 15

Agent readiness — 35/100 · agent ready

Machine-Readable Contract 18 / 18

Agentic Access Contract 10 / 10

Documented Reversibility 0 / 6

MCP Server 0 / 12

Machine-Readable Auth 10 / 10

Idempotency 0 / 9

Stable Error Semantics 8 / 8

Request/Response Examples 7 / 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 0 / 6

Protected Resource Metadata 0 / 5

Registration Without a Human 0 / 6

Agentic Commerce Well-Known Document 0 / 5

Pagination 5 / 5

Distinct Operations 3 / 3

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 could not be measured. We hold no machine-readable contract for this provider to read, so there is nothing to measure a write surface against. Excluded rather than scored zero: never-measured and measured-empty are different facts. Publishing an OpenAPI is what makes this facet — and several others — scorable at all.

The six quality facets above are damped to 85 points between them, because the conditional facet above carries the other 15. That is why each facet's contribution is shown against a damped maximum: raising a quality facet moves the composite by 85% 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):

MCP Server +12 pts — deployment.mode + probe verdict on the mcp/ manifest, not the pointer; an unprobed slug falls back to authorship
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
Delegated User Identity +6 pts — a served discovery document listing authorization_code in grant_types_supported (served), else an oauth2 authorizationCode flow or openIdConnect declared in an OpenAPI (documented)
Registration Without a Human +6 pts — a `registration_endpoint` in the served RFC 8414 / OIDC discovery document
Typed Event Surface +6 pts — AsyncAPI document, OR webhooks/callbacks objects in the as-published OpenAPI, OR common[].type includes Webhooks

6 more unmet checks in the Agent Readiness table above.

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

Contract Quality scores 49.6 — up to +12.6 composite points
Operational Transparency scores 5.3 — up to +12.3 composite points
Contract Governance scores 4.5 — up to +11.5 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/golden/apis.yml: open an issue on github.com/api-evangelist/golden 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 →

APIs 3

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

Golden Entity API

The Entity API API from Golden — 2 operation(s) for entity api.

Golden Query API

The Query API API from Golden — 2 operation(s) for query api.

Golden Schema API

The Schema API API from Golden — 4 operation(s) for schema api.

Open Collections 3

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

Golden API v2 Entity API API

OPEN COLLECTION

Golden API v2 Entity API Query API API

OPEN COLLECTION

Golden API v2 Entity API Schema API API

OPEN COLLECTION

Agent Skills 3

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

Explore the Golden schema (entity types and predicates)

AGENT SKILL

Look up an entity and its properties

AGENT SKILL

Run a Golden Query and read its results

AGENT SKILL

Pricing Plans 1

Published pricing tiers and plan structures.

Golden Plans Pricing

4 plans

PLANS

Rate Limits 1

Documented rate limits and quota policies.

Golden Rate Limits

0 limits

RATE LIMITS

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.

Golden Openapi Overlay

3 actions · documentation · golden-openapi-original.json

DERIVED

Security Posture 2

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

Golden Authentication

apiKey · 1 scheme

SECURITY

Golden Domain Security

TLSv1.3 · DMARC

SECURITY

Agentic Access 1

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

Golden Agentic Access

8 operations

8 operations · 0 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 4

MCP servers, agent skills, and machine-readable catalogs

X-MCPServerCandidate

LLMsTxt

AgentSkill

AgenticAccess

Design & Contract 5

Pagination, idempotency, versioning, errors, and events

ErrorCatalog

Conventions

DataModel

Lifecycle

Conformance

Build 3

SDKs, sample code, and the tooling you integrate with

GitHubOrganization

GitHubOrganization

ToolCrosswalk

ToolCrosswalk

Packages

Packages

Access & Security 2

Authentication, authorization, and security posture

Authentication

Authentication

DomainSecurity

DomainSecurity

Operate 2

Status, limits, changes, and where to get help

Support

Support

RateLimits

RateLimits

Commercial 4

Pricing, plans, and the legal terms of use

Pricing

TermsOfService

PrivacyPolicy

Plans

Company 2

The organization behind the API

Blog

Blog

Website

Website

Other 1

Properties that don't map to a standard resource type

Overlay

Overlay

Source (apis.yml)

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 was founded in San Francisco in 2017 by Jude Gomila,
  raised roughly $59.5M led by a16z with DCVC, Founders Fund, Gigafund and SV Angel participating, and was acquired by financial-
  crime-intelligence firm ComplyAdvantage in April 2024; the product site, self-serve plans and the Public API v2 host remain
  live and reachable.'
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: false
  try_now: true
  public: false
  label: Freemium · Self-serve signup
  confidence: high
  source:
  - plans
  - authentication
  - rate-limits
  - security
  generated: '2026-09-03'
  method: derived
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: '0.23'
created: '2026-07-17'
modified: '2026-10-06'
x-docs-platform: scalar
x-docs-platform-confidence: medium
x-docs-platform-checked: 2026-10-03
tags:
- Company
- Knowledge Graph
- Company Data
- Data
- Entities
- Artificial Intelligence
- Search
- Business Intelligence
apis:
- aid: golden:golden-entity-api-api
  name: Golden Entity API
  description: The Entity API API from Golden — 2 operation(s) for entity api.
  humanURL: https://docs.golden.com
  baseURL: https://golden.com/api/v2/public
  tags:
  - Entity API
  properties:
  - type: OpenAPI
    url: openapi/golden-entity-api-api-openapi.yml
- aid: golden:golden-query-api-api
  name: Golden Query API
  description: The Query API API from Golden — 2 operation(s) for query api.
  humanURL: https://docs.golden.com
  baseURL: https://golden.com/api/v2/public
  tags:
  - Query API
  properties:
  - type: OpenAPI
    url: openapi/golden-query-api-api-openapi.yml
- aid: golden:golden-schema-api-api
  name: Golden Schema API
  description: The Schema API API from Golden — 4 operation(s) for schema api.
  humanURL: https://docs.golden.com
  baseURL: https://golden.com/api/v2/public
  tags:
  - Schema API
  properties:
  - type: OpenAPI
    url: openapi/golden-schema-api-api-openapi.yml
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
common:
- url: https://golden.com/news/
  type: Blog
- type: Website
  url: https://www.golden.com/
- type: Overlay
  url: overlays/golden-openapi-overlay.yaml
- 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://support.golden.com/
- type: Pricing
  url: https://golden.com/pricing
- type: SignUp
  url: https://golden.com/signup
- type: GitHubOrganization
  url: https://github.com/goldenrecursion
- 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: X-MCPServerCandidate
  url: mcp/golden-mcp.yml
  note: 'Renamed from MCPServer 2026-09-03 (roadmap#247): the manifest self-describes as status: candidate — a tool list derived
    from the published API contracts, not an existing server. The scorer already read the manifest and reported mcp_server
    correctly; the MCPServer type was crediting the artifact-type surfaces with a server that does not exist.'
- type: ToolCrosswalk
  url: mcp/golden-tool-crosswalk.yml
- type: LLMsTxt
  url: llms/golden-llms.txt
- type: AgentSkill
  url: skills/_index.yml
- type: Packages
  url: packages/golden-packages.yml
- type: Plans
  url: plans/golden-plans-pricing.yml
- type: RateLimits
  url: rate-limits/golden-rate-limits.yml
- type: AgenticAccess
  url: agentic-access/golden-agentic-access.yml
- type: DomainSecurity
  url: security/golden-domain-security.yml
x-enrichment:
  date: '2026-08-14'
  status: enriched
  artifacts_added: 4
  pass: local-v1

Golden API — frequently asked questions

Does Golden have an API?

Yes. APIs.io lists 3 APIs from Golden, including Golden Entity API, Golden Query API and Golden Schema API.

Is there an OpenAPI specification for the Golden API?

Yes. APIs.io indexes 3 OpenAPI specifications for Golden, each linked for download from this page.

How do I authenticate with the Golden API?

Golden uses bearer-token authentication (apiKey · 1 scheme). The details are profiled on APIs.io as Golden Authentication.

How much does the Golden API cost?

APIs.io lists 4 pricing plans for Golden, with each plan's price, limits and inclusions under Pricing Plans on this page.

Is the Golden API ready for AI agents?

Golden has a Kin Score of 48.4 out of 100 (developing) and an Agent Readiness score of 35.2 (agent-ready), scored by API Evangelist on 2026-10-31.

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