ContextGem

ContextGem provides an AI-powered platform for extracting structured data from unstructured text using large language models. It offers pipelines for aspect extraction, concept identification, and decision modeling, enabling developers to integrate advanced natural language understanding into their applications. The documentation includes quickstart guides, installation instructions, and extensive examples for building extraction pipelines and leveraging supported LLMs.

ContextGem is listed with 1 API on the APIs.io network: Systemone API. Tagged areas include Artificial Intelligence, Natural Language Processing, Data Extraction, LLM, and Platform.

The ContextGem catalog on APIs.io includes 1 Spectral governance ruleset.

ContextGem’s developer surface includes documentation, getting-started guide, and 10 more developer resources.

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13.1/100 emerging ▬ flat Agent 13/100 agent aware Full breakdown ↓
scored 2026-11-06 · rubric v0.27.0 · Show this score on your site →

1 API

Artificial Intelligence Natural Language Processing Data Extraction LLM Platform Company

Kin Score

Kin Score How this is scored →
scored 2026-11-06 · rubric v0.27.0

Composite quality — 13.1/100 · emerging

Contract Quality 1.8 / 19

Developer Ergonomics 2.7 / 15

Access Clarity 0.0 / 15

Operational Transparency 0.0 / 10

Contract Governance 1.6 / 9

Discoverability 4.8 / 8

Regulatory Posture 1.5 / 15

Create-or-Update Ergonomics 0.0 / 10

Agent readiness — 13/100 · agent aware

Machine-Readable Contract 18 / 18

Agentic Access Contract 0 / 10

Documented Reversibility 0 / 6

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 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

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 applies to this provider. This API accepts writes, so it carries 10 points of the composite. It is scored from the published contracts themselves: whether a caller can create-or-update in one call, whether the write accepts a key the caller already holds, and whether the response says which branch ran. Without that, every write needs a search-and-branch in front of it, and the first time that check is skipped a duplicate record is created. Scored against the observed mean rather than raw — a provider at the catalog average is unchanged by this facet, not penalised by it.

The six quality facets above are damped to 75 points between them, because the conditional facet above carries the other 25. That is why each facet's contribution is shown against a damped maximum: raising a quality facet moves the composite by 75% 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
Agentic Access Contract +10 pts — agentic_access artifact present (x-agentic-access), graded by author
Machine-Readable Auth +10 pts — a served openid-configuration/oauth-authorization-server carrying `issuer` (served), else the securitySchemes class in the provider OpenAPIs — bound (mutualTLS, DPoP, Signature) > negotiable (oauth2 authorizationCode/clientCredentials, openIdConnect) > bearer (http bearer, apiKey)
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)
Stable Error Semantics +8 pts — OpenAPI $refs a shared error schema across 4xx/5xx responses (verified), else common[].type includes ErrorCatalog / ErrorCodes / DeclineCodes
A2A Agent Card +8 pts — a2a/-a2a.yml manifest, graded on conformance.grade against A2A 1.0.0

12 more unmet checks in the Agent Readiness table above.

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

Contract Quality scores 9.4 — up to +22.7 composite points
Access Clarity scores 0.0 — up to +20.0 composite points
Developer Ergonomics scores 17.9 — up to +16.4 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/contextgem/apis.yml: open an issue on github.com/api-evangelist/contextgem 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 1

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.

OpenAPI

measured — observed by APIs.io (published)

APIs 1

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

ContextGem Systemone API

The Systemone API from ContextGem — 1 operation(s) for systemone.

Spectral Rules 1

Spectral governance rulesets for linting and validating these APIs.

ContextGem API Rules

9 rules · 7 errors 1 warnings 1 info

SPECTRAL

Security Posture 1

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

Contextgem Domain Security

TLSv1.3 · DMARC

SECURITY

Resources

Get Started 1

Portal, sign-up, and the first successful call

GettingStarted

GettingStarted

Documentation 1

Reference material describing how the API behaves

Documentation

Documentation

Agent Surfaces 1

MCP servers, agent skills, and machine-readable catalogs

LLMsTxt

LLMsTxt

Design & Contract 2

Pagination, idempotency, versioning, errors, and events

Spectral

Spectral

Conformance

Conformance

Build 2

SDKs, sample code, and the tooling you integrate with

SDKs

SDKs

Packages

Packages

Access & Security 1

Authentication, authorization, and security posture

DomainSecurity

DomainSecurity

Company 1

The organization behind the API

Website

Website

Other 3

Properties that don't map to a standard resource type

Hosts

Hosts

Vendors

Vendors

Installation

Installation

Source (apis.yml)

aid: contextgem
name: ContextGem
accessModel:
  pricing: unknown
  onboarding: unknown
  trial: false
  try_now: false
  public: false
  label: Unknown
  confidence: low
  probe_state: unreadable
  source:
  - security
  generated: '2026-11-06'
  method: derived
image: https://contextgem.shcherbak.ai/github-social-preview.png
description: ContextGem provides an AI-powered platform for extracting structured data from unstructured text using large
  language models. It offers pipelines for aspect extraction, concept identification, and decision modeling, enabling developers
  to integrate advanced natural language understanding into their applications. The documentation includes quickstart guides,
  installation instructions, and extensive examples for building extraction pipelines and leveraging supported LLMs.
url: https://raw.githubusercontent.com/api-evangelist/contextgem/refs/heads/main/apis.yml
x-type: company
x-source: harvest:g2-catalog
x-tier: profiled
x-tier-reason: enrichment pass 2026-10-16 (modular-v1; was harvest)
specificationVersion: '0.20'
created: '2026-10-16'
modified: '2026-10-16'
x-docs-platform: sphinx
x-docs-platform-confidence: medium
x-docs-platform-checked: 2026-10-17
x-docs-hosting: github-pages
tags:
- Artificial Intelligence
- Natural Language Processing
- Data Extraction
- LLM
- Platform
- Company
tags_raw:
- AI
- NLP
- DataExtraction
- LLM
- Platform
- Company
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
common:
- type: Spectral
  url: rules/contextgem-rules.yml
- type: Conformance
  url: conformance/contextgem-conformance.yml
- type: LLMsTxt
  url: llms/contextgem-llms.txt
- type: Hosts
  url: hosts/contextgem-hosts.yml
- type: Vendors
  url: vendors/contextgem-vendors.yml
- type: SDKs
  url: packages/contextgem-packages.yml
- type: Packages
  url: packages/contextgem-packages.yml
- type: DomainSecurity
  url: security/contextgem-domain-security.yml
- type: Website
  url: https://contextgem.dev/
- type: Documentation
  url: https://contextgem.shcherbak.ai/
- type: GettingStarted
  url: https://contextgem.shcherbak.ai/quickstart/
- type: Installation
  url: https://contextgem.shcherbak.ai/installation/
apis:
- aid: contextgem:contextgem-systemone-api
  name: ContextGem Systemone API
  description: The Systemone API from ContextGem — 1 operation(s) for systemone.
  humanURL: https://contextgem.shcherbak.ai/decision_models/decision_models
  tags:
  - Systemone
  properties:
  - type: OpenAPI
    url: openapi/contextgem-systemone-api-openapi.yml
x-coverage:
  state: unreadable
  reason: no-machine-readable-spec
  method: derived
  generated: '2026-10-16'
  generator: derive-coverage.py (pre-flight evidence)
  detail: the company publishes developer documentation but serves no machine-readable contract from it
  evidence:
  - url: https://contextgem.dev/
    status: 200
x-enrichment:
  date: '2026-10-16'
  status: enriched
  artifacts_added: 11
  pass: modular-v1
  engine: identity=local,contract=local,surfaces=local,docs=local,regulatory=local

ContextGem API — frequently asked questions

Does ContextGem have an API?

Yes. APIs.io lists 1 API from ContextGem, including ContextGem Systemone API.

Is there an OpenAPI specification for the ContextGem API?

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

Is the ContextGem API ready for AI agents?

ContextGem has a Kin Score of 13.1 out of 100 (emerging) and an Agent Readiness score of 12.9 (agent-aware), scored by API Evangelist on 2026-11-06.

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