Groundtruth

Groundtruth (groundtruthhq.tech) is a company wiki and knowledge base built for AI. Your team writes pages, decisions and records, and AI assistants like Claude, ChatGPT and Gemini query them over MCP with answers that cite their source. It offers a free beta, with paid plans planned per person, and integrates with Claude, ChatGPT, Gemini, and Chrome extensions. The platform provides a queryable company knowledge base, policy management, and agent store for AI workflows.

Groundtruth is listed with 1 API on the APIs.io network. Tagged areas include Knowledge Base, Artificial Intelligence, CompanyWiki, FreeBeta, and Collaboration.

The Groundtruth catalog on APIs.io includes 1 JSON-LD context and 1 Spectral governance ruleset.

Groundtruth’s developer surface includes changelog, documentation, pricing, engineering blog, and 16 more developer resources.

🌐 Visit website 📡 Profile data on GitHub

29.9/100 thin Agent 35/100 agent ready Full breakdown ↓
scored 2026-11-13 · rubric v0.28.0 · Show this score on your site →

AccessFreemium

1 API

Knowledge Base Artificial IntelligenceCompanyWikiFreeBetaCollaboration

Kin Score

Kin Score How this is scored →
scored 2026-11-13 · rubric v0.28.0

Composite quality — 29.9/100 · thin

Contract Quality 4.3 / 21

Developer Ergonomics 2.0 / 17

Access Clarity 10.5 / 17

Operational Transparency 1.6 / 11

Contract Governance 2.2 / 10

Discoverability 4.6 / 9

Regulatory Posture 2.6 / 15

Agent readiness — 35/100 · agent ready

Machine-Readable Contract 18 / 18

Agentic Access Contract 0 / 10

Documented Reversibility 0 / 6

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

Delegated User Identity 6 / 6

Protected Resource Metadata 5 / 5

Registration Without a Human 6 / 6

Agentic Commerce Well-Known Document 0 / 5

Pagination 5 / 5

Distinct Operations 3 / 3

MCP Tool Quality 6 / 6

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 Ask about this →
Agentic Access Contract +10 pts — agentic_access artifact present (x-agentic-access), graded by author Ask about this →
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) Ask about this →
Stable Error Semantics +8 pts — OpenAPI $refs a shared error schema across 4xx/5xx responses (verified), else common[].type includes ErrorCatalog / ErrorCodes / DeclineCodes Ask about this →
A2A Agent Card +8 pts — a2a/-a2a.yml manifest, graded on conformance.grade against A2A 1.0.0 Ask about this →
Rate-Limit Signaling +7 pts — OpenAPI responses document X-RateLimit-* / RateLimit headers (verified), else a rate_limits artifact or RateLimits link (documented) Ask about this →

8 more unmet checks in the Agent Readiness table above.

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

Contract Quality scores 20.1 — up to +20.0 composite points Ask about this →
Developer Ergonomics scores 11.9 — up to +17.6 composite points Ask about this →
Operational Transparency scores 14.3 — up to +11.1 composite points Ask about this →

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.

Not sure how this applies to your stack? Ask about any one item. Kin Lane reads every question, looks at your profile and your situation, and replies with what a fix would take — scoped to that one area, priced up front, yours whether you ship it or not. Ask a question →

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/groundtruthhq-tech/apis.yml: open an issue on github.com/api-evangelist/groundtruthhq-tech 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 →

Standards implemented 2

Standards this provider implements or carries. De facto ones are profiled and measured by the API Commons; formal ones come from the standards directory and are linked by the provider's own tags. The evidence column says how each claim was established — not that it was made.

OAuth 2.0 Protected Resource Metadata

measured — observed by APIs.io (verified)

Dynamic Client Registration

measured — observed by APIs.io (published)

APIs 1

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

Groundtruth API

Groundtruth API as documented publicly: 7 operations. Contract generated from the documentation by API Evangelist (2026-11-10); not the provider's own document.

Groundtruth API pricing

Prices published by Groundtruth, read 2026-11-10 from groundtruthhq.tech/pricing.

Plan	Price
Starter	$0 forever
Team	$14 per human/ month
Business	$28 per human/ month
Enterprise	Custom

Plan details, limits and sources →

Pricing Plans 1

Published pricing tiers and plan structures.

Groundtruth Plans Pricing

4 plans

PLANS

Semantic Vocabularies 1

JSON-LD contexts and semantic vocabularies used across these APIs.

Groundtruthhq Tech Context

4 classes · 8 properties

JSON-LD

Spectral Rules 1

Spectral governance rulesets for linting and validating these APIs. Counts are the severity each rule declares, not results of running them.

Groundtruth API Rules

41 rules · 39 error-severity 1 warn-severity 1 info-severity

SPECTRAL

JSON Schema 4

Standalone JSON Schema definitions for this provider's data models.

GetApiV1AskResponse

2 properties

JSON SCHEMA

GetApiV1QueryRecordsResponse

1 properties

JSON SCHEMA

PostApiV1AskRequest

1 properties

JSON SCHEMA

PostApiV1QueryRecordsRequest

4 properties

JSON SCHEMA

Security Posture 1

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

Groundtruth Domain Security

TLSv1.3 · HSTS · DNSSEC · DMARC

SECURITY

Resources

Get Started 1

Portal, sign-up, and the first successful call

Login

Documentation 1

Reference material describing how the API behaves

Documentation

Documentation

Agent Surfaces 2

MCP servers, agent skills, and machine-readable catalogs

LLMsTxt

LLMsTxt

WellKnown

WellKnown

Design & Contract 5

Pagination, idempotency, versioning, errors, and events

Spectral

JSONLD

Vocabulary

DataModel

Conformance

Access & Security 1

Authentication, authorization, and security posture

DomainSecurity

DomainSecurity

Operate 2

Status, limits, changes, and where to get help

ChangeLog

ChangeLog

ChangeLog

ChangeLog

Commercial 4

Pricing, plans, and the legal terms of use

Plans

PrivacyPolicy

Pricing

TermsOfService

Company 2

The organization behind the API

Website

Website

Blog

Blog

Other 2

Properties that don't map to a standard resource type

Hosts

Hosts

Vendors

Vendors

Source (apis.yml)

aid: groundtruthhq-tech
name: Groundtruth
description: Groundtruth (groundtruthhq.tech) is a company wiki and knowledge base built for AI. Your team writes pages, decisions
  and records, and AI assistants like Claude, ChatGPT and Gemini query them over MCP with answers that cite their source.
  It offers a free beta, with paid plans planned per person, and integrates with Claude, ChatGPT, Gemini, and Chrome extensions.
  The platform provides a queryable company knowledge base, policy management, and agent store for AI workflows.
url: https://artifacts.apis.io/groundtruthhq-tech/apis.yml
x-type: company
x-source: harvest:mcp-registry
x-tier: profiled
x-tier-reason: enrichment pass 2026-11-10 (modular-v1; was harvest)
accessModel:
  pricing: freemium
  onboarding: unknown
  trial: false
  try_now: false
  public: false
  label: Freemium
  confidence: low
  probe_state: unreadable
  source:
  - plans
  - security
  generated: '2026-11-13'
  method: derived
specificationVersion: '0.20'
created: '2026-11-10'
modified: '2026-11-10'
tags:
- Knowledge Base
- Artificial Intelligence
- CompanyWiki
- FreeBeta
- Collaboration
tags_raw:
- KnowledgeBase
- AI
- CompanyWiki
- FreeBeta
- Collaboration
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
common:
- type: Plans
  url: plans/groundtruthhq-tech-plans-pricing.yml
- type: Spectral
  url: rules/groundtruthhq-tech-rules.yml
- type: JSONLD
  url: json-ld/groundtruthhq-tech-context.jsonld
- type: Vocabulary
  url: vocabulary/groundtruthhq-tech-vocabulary.yml
- type: DataModel
  url: data-model/groundtruthhq-tech-data-model.yml
- type: ChangeLog
  url: changelog/groundtruthhq-tech-changelog.yml
- type: Conformance
  url: conformance/groundtruthhq-tech-conformance.yml
- type: LLMsTxt
  url: llms/groundtruthhq-tech-llms.txt
- type: WellKnown
  url: well-known/groundtruthhq-tech-well-known.yml
- type: Hosts
  url: hosts/groundtruthhq-tech-hosts.yml
- type: Vendors
  url: vendors/groundtruthhq-tech-vendors.yml
- type: PrivacyPolicy
  url: https://groundtruthhq.tech/privacy
- type: Login
  url: https://groundtruthhq.tech/login
- type: ChangeLog
  url: https://groundtruthhq.tech/changelog
- type: DomainSecurity
  url: security/groundtruthhq-tech-domain-security.yml
- type: Website
  url: https://groundtruthhq.tech/
- type: Documentation
  url: https://groundtruthhq.tech/docs
- type: Pricing
  url: https://groundtruthhq.tech/pricing
- type: Blog
  url: https://groundtruthhq.tech/blog
- type: TermsOfService
  url: https://groundtruthhq.tech/terms
apis:
- aid: groundtruthhq-tech:groundtruthhq-tech-api
  name: Groundtruth API
  description: 'Groundtruth API as documented publicly: 7 operations. Contract generated from the documentation by API Evangelist
    (2026-11-10); not the provider''s own document.'
  humanURL: https://groundtruthhq.tech/docs
  properties:
  - type: OpenAPI
    url: openapi/_ae-authored/groundtruthhq-tech-openapi-generated.yml
    x-provenance: generated
  - type: JSONSchema
    url: json-schema/groundtruthhq-tech-get-api-v1-ask-response-schema.json
  - type: JSONSchema
    url: json-schema/groundtruthhq-tech-post-api-v1-query-records-request-schema.json
  - type: JSONSchema
    url: json-schema/groundtruthhq-tech-get-api-v1-query-records-response-schema.json
  - type: JSONSchema
    url: json-schema/groundtruthhq-tech-post-api-v1-ask-request-schema.json
x-coverage:
  state: unreadable
  reason: js-rendered-docs
  detail: Docs page at https://groundtruthhq.tech/docs returns a JavaScript‑rendered HTML shell, preventing machine‑readable
    spec discovery.
  evidence:
  - url: https://groundtruthhq.tech/docs
    status: 200
  checked: '2026-11-10'
x-enrichment:
  date: '2026-11-10'
  status: enriched
  artifacts_added: 27
  pass: modular-v1
  engine: identity=local,contract=local,surfaces=local,docs=local,regulatory=local

Groundtruth API — frequently asked questions

Does Groundtruth have an API?

Yes. APIs.io lists 1 API from Groundtruth, including Groundtruth API.

Is there an OpenAPI specification for the Groundtruth API?

Yes. APIs.io indexes 1 OpenAPI specification for Groundtruth, each linked for download from this page.

How much does the Groundtruth API cost?

Groundtruth publishes its prices; its Starter plan is $0 forever as of 2026-11-10. APIs.io lists 4 pricing plans for Groundtruth, with each plan's price, limits and inclusions under Pricing on this page.

Is the Groundtruth API ready for AI agents?

Groundtruth has a Kin Score of 29.9 out of 100 (thin) and an Agent Readiness score of 35.4 (agent-ready), scored by API Evangelist on 2026-11-13.

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MCP server

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get_provider_operationsEvery operation across all of their OpenAPIs — one call instead of parsing every spec.
get_provider_toolsEvery MCP tool they ship, with the operation each wraps.
get_provider_evidenceHow each part of their score was established. Free — the basis for a claim should not sit behind it.
get_provider_ratingPRO — composite, band, trend and facet scores.
apis_io_searchSTART HERE — APIs, providers and tags for one query, each with its total.
resolveTurn a domain, URL or GitHub org into the provider it belongs to.
find_cohortsEvery scored population of providers in the catalog.

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