GEMI General Commercial Registry (Greece)

GEMI (Γενικό Εμπορικό Μητρώο, the Greek General Commercial Registry) is Greece's official business register, run by the Central GEMI Service of the Hellenic Chambers (ΚΕΕΕ / uhc.gr) through businessportal.gr. Its OpenData GEMI service publishes a read-only, API-key REST API (Swagger 2.0, JSON) to search registered companies, fetch a company's public publicity record and documents by GEMI number, and download reference lists (activities/KAD, prefectures, municipalities, legal forms, statuses), licensed ODC-BY-1.0.

GEMI General Commercial Registry (Greece) publishes 5 API contracts indexed on the APIs.io network, including Companies API, Company Documents API, Download File API, and 2 more. Tagged areas include Company, Business Registry, Government, Open Data, and Greece.

The GEMI General Commercial Registry (Greece) catalog on APIs.io includes 1 Spectral governance ruleset.

GEMI General Commercial Registry (Greece)’s developer surface includes sandbox, authentication, documentation, signup flow, support, and 16 more developer resources.

🌐 Visit website 📡 Profile data on GitHub

35.3/100 thin Agent 21/100 agent aware Full breakdown ↓
scored 2026-11-13 · rubric v0.28.0 · Show this score on your site →

1 published contract 1 Agent Skills

Company Business Registry Government Open Data Greece Company Data Public Sector

Kin Score

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

Composite quality — 35.3/100 · thin

Contract Quality 9.9 / 21

Developer Ergonomics 8.8 / 17

Access Clarity 3.2 / 17

Operational Transparency 0.0 / 11

Contract Governance 2.2 / 10

Discoverability 5.6 / 9

Regulatory Posture 2.2 / 15

Agent readiness — 21/100 · agent aware

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 0 / 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 0 / 5

Distinct Operations 3 / 3

MCP Tool Quality 6 / 6

Regulatory Posture applies to this provider. Its tags matched the Government & Public Sector 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 →
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 →
A2A Agent Card +8 pts — a2a/-a2a.yml manifest, graded on conformance.grade against A2A 1.0.0 Ask about this →
Request/Response Examples +7 pts — share of operations carrying request/response examples; else an Examples / Code Samples link Ask about this →
Registration Without a Human +6 pts — a `registration_endpoint` in the served RFC 8414 / OIDC discovery document Ask about this →
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) 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):

Access Clarity scores 19.1 — up to +16.2 composite points Ask about this →
Contract Quality scores 46.5 — up to +13.4 composite points Ask about this →
Operational Transparency scores 0.0 — up to +13.0 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.

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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/businessportal-gr/apis.yml: open an issue on github.com/api-evangelist/businessportal-gr 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 5

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

GEMI General Commercial Registry (Greece) Companies API

Επιχειρήσεις μέλη ΓΕΜΗ

GEMI General Commercial Registry (Greece) Company Documents API

Έγγραφα εταιρειών ΓΕΜΗ

GEMI General Commercial Registry (Greece) Download File API

The DownloadFile API from GEMI General Commercial Registry (Greece) — 1 operation(s) for downloadfile.

GEMI General Commercial Registry (Greece) Metadata API

Metadata και συστημικά δεδομένα Παραμετρικά αρχεία που αφορούν κριτήρια ή αναφορές από τα αποτελέσματα του API. Προτείνεται να αποθηκεύονται τακτικά στο σύστημά σας, μιας και αλ...

GEMI General Commercial Registry (Greece) Misc API

The Misc API from GEMI General Commercial Registry (Greece) — 1 operation(s) for misc.

Agent Skills 1

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

lookup-greek-company

AGENT SKILL

GEMI General Commercial Registry (Greece) API pricing

Pricing Plans 1

Published pricing tiers and plan structures.

GEMI General Commercial Registry (Greece) Plans Pricing

0 plans

PLANS

Rate Limits 1

Documented rate limits and quota policies.

GEMI General Commercial Registry (Greece) Rate Limits

0 limits

RATE LIMITS

Spectral Rules 1

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

GEMI General Commercial Registry (Greece) API Rules

44 rules · 42 error-severity 1 warn-severity 1 info-severity

SPECTRAL

Security Posture 2

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

GEMI General Commercial Registry (Greece) Authentication

apiKey · 1 scheme

SECURITY

GEMI General Commercial Registry (Greece) Domain Security

TLSv1.3 · HSTS · DMARC

SECURITY

Agentic Access (API Evangelist recommendations) 1

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

GEMI General Commercial Registry (Greece) Agentic Access

12 operations

12 operations · 0 acting

AGENTIC

Resources

Get Started 3

Portal, sign-up, and the first successful call

Sandbox

Sandbox

DeveloperPortal

DeveloperPortal

SignUp

SignUp

Documentation 1

Reference material describing how the API behaves

Documentation

Documentation

Agent Surfaces 3

MCP servers, agent skills, and machine-readable catalogs

AgentSkill

AgentSkill

AgenticAccess

AgenticAccess

LLMsTxt

LLMsTxt

Design & Contract 6

Pagination, idempotency, versioning, errors, and events

Spectral

Vocabulary

DataModel

Conventions

ErrorCatalog

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 2

Pricing, plans, and the legal terms of use

License

License

TermsOfService

TermsOfService

Company 1

The organization behind the API

Website

Website

Other 2

Properties that don't map to a standard resource type

Hosts

Hosts

Vendors

Vendors

Source (apis.yml)

aid: businessportal-gr
name: GEMI General Commercial Registry (Greece)
description: GEMI (Γενικό Εμπορικό Μητρώο, the Greek General Commercial Registry) is Greece's official business register,
  run by the Central GEMI Service of the Hellenic Chambers (ΚΕΕΕ / uhc.gr) through businessportal.gr. Its OpenData GEMI service
  publishes a read-only, API-key REST API (Swagger 2.0, JSON) to search registered companies, fetch a company's public publicity
  record and documents by GEMI number, and download reference lists (activities/KAD, prefectures, municipalities, legal forms,
  statuses), licensed ODC-BY-1.0.
url: https://artifacts.apis.io/businessportal-gr/apis.yml
x-type: company
x-source: harvest:eu-gov-keynote-2026-11-10
x-tier: profiled
x-tier-reason: enrichment pass 2026-11-11 (local-v6; was harvest)
accessModel:
  pricing: unknown
  onboarding: unknown
  trial: false
  try_now: false
  public: false
  label: Unknown
  confidence: low
  source:
  - authentication
  - security
  - sandbox
  generated: '2026-11-13'
  method: derived
specificationVersion: '0.20'
created: '2026-11-11'
modified: '2026-11-11'
tags:
- Company
- Business Registry
- Government
- Open Data
- Greece
- Company Data
- Public Sector
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
image: https://www.businessportal.gr/wp-content/uploads/2020/07/gemi_app_logo_512x512.png
common:
- type: AgentSkill
  url: skills/_index.yml
- type: AgenticAccess
  url: agentic-access/businessportal-gr-agentic-access.yml
- type: Spectral
  url: rules/businessportal-gr-rules.yml
- type: Vocabulary
  url: vocabulary/businessportal-gr-vocabulary.yml
- type: DataModel
  url: data-model/businessportal-gr-data-model.yml
- type: Conventions
  url: conventions/businessportal-gr-conventions.yml
- type: Sandbox
  url: sandbox/businessportal-gr-sandbox.yml
- type: ErrorCatalog
  url: errors/businessportal-gr-problem-types.yml
- type: Conformance
  url: conformance/businessportal-gr-conformance.yml
- type: LLMsTxt
  url: llms/businessportal-gr-llms.txt
- type: Hosts
  url: hosts/businessportal-gr-hosts.yml
- type: Vendors
  url: vendors/businessportal-gr-vendors.yml
- type: Authentication
  url: authentication/businessportal-gr-authentication.yml
- type: DomainSecurity
  url: security/businessportal-gr-domain-security.yml
- type: Website
  url: https://www.businessportal.gr
- type: DeveloperPortal
  url: https://opendata.businessportal.gr/
- type: Documentation
  url: https://opendata.businessportal.gr/techdocs/
- type: SignUp
  url: https://opendata.businessportal.gr/register/
- type: License
  url: https://opendata.businessportal.gr/license/
- type: TermsOfService
  url: https://www.businessportal.gr/en/terms-of-use/
- type: Support
  url: mailto:support@uhc.gr
apis:
- aid: businessportal-gr:businessportal-gr-companies-api
  name: GEMI General Commercial Registry (Greece) Companies API
  description: Επιχειρήσεις μέλη ΓΕΜΗ
  humanURL: https://opendata.businessportal.gr/techdocs/
  baseURL: https://opendata-api.businessportal.gr/api/opendata/v1
  tags:
  - Companies
  properties:
  - type: OpenAPI
    url: openapi/businessportal-gr-companies-api-openapi.yml
  - type: APIReference
    url: https://opendata-api.businessportal.gr/opendata/docs/
  - type: Documentation
    url: https://opendata.businessportal.gr/techdocs/
- aid: businessportal-gr:businessportal-gr-companydocuments-api
  name: GEMI General Commercial Registry (Greece) Company Documents API
  description: Έγγραφα εταιρειών ΓΕΜΗ
  humanURL: https://opendata.businessportal.gr/techdocs/
  baseURL: https://opendata-api.businessportal.gr/api/opendata/v1
  tags:
  - CompanyDocuments
  properties:
  - type: OpenAPI
    url: openapi/businessportal-gr-companydocuments-api-openapi.yml
  - type: APIReference
    url: https://opendata-api.businessportal.gr/opendata/docs/
  - type: Documentation
    url: https://opendata.businessportal.gr/techdocs/
- aid: businessportal-gr:businessportal-gr-downloadfile-api
  name: GEMI General Commercial Registry (Greece) Download File API
  description: The DownloadFile API from GEMI General Commercial Registry (Greece) — 1 operation(s) for downloadfile.
  humanURL: https://opendata.businessportal.gr/techdocs/
  baseURL: https://opendata-api.businessportal.gr/api/opendata/v1
  tags:
  - Download File
  tags_raw:
  - DownloadFile
  properties:
  - type: OpenAPI
    url: openapi/businessportal-gr-downloadfile-api-openapi.yml
  - type: APIReference
    url: https://opendata-api.businessportal.gr/opendata/docs/
  - type: Documentation
    url: https://opendata.businessportal.gr/techdocs/
- aid: businessportal-gr:businessportal-gr-metadata-api
  name: GEMI General Commercial Registry (Greece) Metadata API
  description: 'Metadata και συστημικά δεδομένα

    Παραμετρικά αρχεία που αφορούν κριτήρια ή αναφορές από τα αποτελέσματα του API.

    Προτείνεται να αποθηκεύονται τακτικά στο σύστημά σας, μιας και αλλάζουν σπάνια'
  humanURL: https://opendata.businessportal.gr/techdocs/
  baseURL: https://opendata-api.businessportal.gr/api/opendata/v1
  tags:
  - Metadata
  properties:
  - type: OpenAPI
    url: openapi/businessportal-gr-metadata-api-openapi.yml
  - type: APIReference
    url: https://opendata-api.businessportal.gr/opendata/docs/
  - type: Documentation
    url: https://opendata.businessportal.gr/techdocs/
- aid: businessportal-gr:businessportal-gr-misc-api
  name: GEMI General Commercial Registry (Greece) Misc API
  description: The Misc API from GEMI General Commercial Registry (Greece) — 1 operation(s) for misc.
  humanURL: https://opendata.businessportal.gr/techdocs/
  baseURL: https://opendata-api.businessportal.gr/api/opendata/v1
  tags: []
  tags_raw:
  - Misc
  properties:
  - type: OpenAPI
    url: openapi/businessportal-gr-misc-api-openapi.yml
  - type: APIReference
    url: https://opendata-api.businessportal.gr/opendata/docs/
  - type: Documentation
    url: https://opendata.businessportal.gr/techdocs/
x-enrichment:
  date: '2026-11-11'
  status: enriched
  artifacts_added: 20
  pass: local-v6

GEMI General Commercial Registry (Greece) API — frequently asked questions

Does GEMI General Commercial Registry (Greece) have an API?

Yes. APIs.io lists 5 APIs from GEMI General Commercial Registry (Greece), including GEMI General Commercial Registry (Greece) Companies API, GEMI General Commercial Registry (Greece) Company Documents API and GEMI General Commercial Registry (Greece) Download File API, and 2 more.

Is there an OpenAPI specification for the GEMI General Commercial Registry (Greece) API?

Yes. APIs.io indexes 5 OpenAPI specifications for GEMI General Commercial Registry (Greece), each linked for download from this page.

How do I authenticate with the GEMI General Commercial Registry (Greece) API?

GEMI General Commercial Registry (Greece) uses bearer-token authentication (apiKey · 1 scheme). The details are profiled on APIs.io as GEMI General Commercial Registry (Greece) Authentication.

Is the GEMI General Commercial Registry (Greece) API ready for AI agents?

GEMI General Commercial Registry (Greece) has a Kin Score of 35.3 out of 100 (thin) and an Agent Readiness score of 20.7 (agent-aware), scored by API Evangelist on 2026-11-13.

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