openapi-company

A company-data lookup skill for finding business records in Italy, Europe, and other parts of the world. It can also return ownership, anti-money-laundering, certified email, and invoicing details.

In plain words
What is it for?
Use it to find companies by name or tax number, check shareholders and ultimate owners, retrieve company details, or monitor business and compliance information.
Why use it?
It removes the need to search several business registers and data sources separately when checking a company or its owners.

Skill for Claude CodeCodex

Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

agentmods
npx agentmods add skills/openapi/openapi-skills/openapi-company
Any agent
npx skills add openapi/openapi-skills --skill openapi-company
Clone the repo
git clone --depth 1 https://github.com/openapi/openapi-skills

Made for: Claude Code, Codex.

Per session 73 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 683 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 1 finding. Scan, not verified.
Origin original No closer match found in the catalogue.
Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

ModelPer sessionOnce invoked
Fable 5 $0.00073 $0.00683
Opus 5 $0.00036 $0.00342
Sonnet 5 $0.00015 $0.00137
Haiku 4.5 $0.00007 $0.00068

Measured 2d ago against content hash 7d0a57408835, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

openapi-company scanned grade A with 1 finding against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 2d ago.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Makes network callslowCapability

Not a fault in itself. Listed so you know the mod talks to something, and to what.

curl -s https://company.openapi.com/IT-start/12485671007 \
skills/openapi-company/SKILL.md · 49 lines

What it actually says

Openapi Company data

Base URL: https://company.openapi.com — company master data from official registers (Chamber of Commerce, CRIF, INPS and more).

Authentication: Authorization: Bearer <token> with company.openapi.com scopes — see the openapi-auth skill.

Italian companies (by VAT or tax code)

Endpoint Returns
GET /IT-start/{vatCode_taxCode_or_id} Basic data (cheap, start here)
GET /IT-advanced/{vatCode_taxCode_or_id} Advanced data
GET /IT-full/{vatCode_or_taxCode} Everything (most expensive)
GET /IT-search Search by name/filters
GET /IT-shareholders/… / GET /IT-ubo/… Shareholders / ultimate beneficial owners
GET /IT-aml/… Anti-money-laundering data
GET /IT-pec/… / GET /IT-sdicode/… Certified e-mail / SDI invoicing code
GET /IT-address/…, /IT-name/…, /IT-closed/…, /IT-vatgroup/…, /IT-splitpayment/…, /IT-pa/… Address, name, activity cessation, VAT group, split payment, public administration
GET /IT-legalforms Italian legal forms list
GET /IT-check_id/{id} Status of an async request

POST variants of /IT-full, /IT-aml, /IT-marketing, /IT-stakeholders run asynchronously: pass a callback URL or poll GET /IT-check_id/{id}.

Other countries

  • Dedicated start/advanced pairs: FR (also /FR-search), DE, ES, PT, GB, BE, AT, CH, PL — e.g. GET /FR-start/{siret_siren_or_vat}.
  • Worldwide: GET /WW-start/{country}/{id}, GET /WW-advanced/{country}/{id}, GET /WW-top/{country}/{id}.

Monitoring

POST /monitor registers a company for change notifications; GET /monitor, GET/DELETE /monitor/{id} manage registrations.

Example

curl -s https://company.openapi.com/IT-start/12485671007 \
  -H "Authorization: Bearer $OPENAPI_TOKEN"

Notes

Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

  1. 2d ago First seen · 49 lines · 73 tokens per session scan A 7d0a57408835

Subscribe to this mod's changes

openapi-company is a skill published in the GitHub repository openapi/openapi-skills (2 stars, last pushed 2mo ago), licensed MIT. It adds 73 tokens to every session and 683 once invoked, about $0.0004 per session on Opus 5. A static security scan graded it A with 1 finding (makes network calls). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.