apipj (MASTER BI TECNOLOGIA LTDA)

apipj (MASTER BI TECNOLOGIA LTDA) provides a public API for Brazilian CNPJ company registry lookup. It offers free access up to 50,000 queries per month and paid plans for higher volume. The API returns detailed company information such as legal name, registration status, address with IBGE code, activity, partners, Simples and MEI status, all in JSON directly from the Receita Federal dataset as of September 2026.

apipj (MASTER BI TECNOLOGIA LTDA) publishes 7 API contracts indexed on the APIs.io network, including Billing API, Chaves API, Consulta API, and 4 more. Tagged areas include Company, Brazil, CNPJ, Registry, and Public APIs.

The apipj (MASTER BI TECNOLOGIA LTDA) catalog on APIs.io includes 1 Spectral governance ruleset.

apipj (MASTER BI TECNOLOGIA LTDA)’s developer surface includes sandbox, documentation, pricing, getting-started guide, and 14 more developer resources.

🌐 Visit website 📡 Profile data on GitHub

29.6/100 thin ▼ -7.6 Agent 38/100 agent ready Full breakdown ↓
scored 2026-11-06 · rubric v0.27.0 · Show this score on your site →

1 published contract

Company Brazil CNPJ Registry Public APIs

Kin Score

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

Composite quality — 29.6/100 · thin

Contract Quality 9.0 / 19

Developer Ergonomics 3.2 / 15

Access Clarity 2.4 / 15

Operational Transparency 0.8 / 10

Contract Governance 2.0 / 9

Discoverability 4.8 / 8

Regulatory Posture 3.1 / 15

Create-or-Update Ergonomics 0.0 / 10

Agent readiness — 38/100 · agent ready

Machine-Readable Contract 18 / 18

Agentic Access Contract 0 / 10

Documented Reversibility 6 / 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 4 / 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 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
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
Rate-Limit Signaling +7 pts — OpenAPI responses document X-RateLimit-* / RateLimit headers (verified), else a rate_limits artifact or RateLimits link (documented)

6 more unmet checks in the Agent Readiness table above.

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

Access Clarity scores 15.8 — up to +16.8 composite points
Developer Ergonomics scores 21.4 — up to +15.7 composite points
Contract Quality scores 47.8 — up to +13.1 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/apipj/apis.yml: open an issue on github.com/api-evangelist/apipj 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 3

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)

OpenAPI

measured — observed by APIs.io (published)

APIs 7

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

CNPJ Lookup API

API de consulta de CNPJ a partir dos dados abertos da Receita Federal.

apipj (MASTER BI TECNOLOGIA LTDA) Billing API

Assinaturas (Stripe; Asaas como alternativa)

apipj (MASTER BI TECNOLOGIA LTDA) Chaves API

Chaves de API

apipj (MASTER BI TECNOLOGIA LTDA) Consulta API

Consulta de CNPJ (exige chave de API ou sessão do site)

apipj (MASTER BI TECNOLOGIA LTDA) Conta API

Cadastro, login e perfil (sessão por cookie)

apipj (MASTER BI TECNOLOGIA LTDA) Interno API

Rotas internas (webhooks)

apipj (MASTER BI TECNOLOGIA LTDA) Público API

Sem autenticação

Scroll for all 7

Spectral Rules 1

Spectral governance rulesets for linting and validating these APIs.

apipj (MASTER BI TECNOLOGIA LTDA) API Rules

10 rules · 8 errors 1 warnings 1 info

SPECTRAL

Security Posture 1

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

Apipj Domain Security

TLSv1.3 · HSTS · DNSSEC

SECURITY

Resources

Get Started 3

Portal, sign-up, and the first successful call

Sandbox

Sandbox

Sandbox

Sandbox

GettingStarted

GettingStarted

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 3

Pagination, idempotency, versioning, errors, and events

Spectral

Spectral

Vocabulary

Vocabulary

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

Operate 1

Status, limits, changes, and where to get help

StatusPage

StatusPage

Commercial 3

Pricing, plans, and the legal terms of use

Pricing

Pricing

TermsOfService

TermsOfService

PrivacyPolicy

PrivacyPolicy

Company 1

The organization behind the API

Website

Website

Other 1

Properties that don't map to a standard resource type

Hosts

Hosts

Source (apis.yml)

aid: apipj
name: apipj (MASTER BI TECNOLOGIA LTDA)
accessModel:
  pricing: unknown
  onboarding: unknown
  trial: false
  try_now: false
  public: false
  label: Unknown
  confidence: low
  source:
  - security
  - sandbox
  generated: '2026-11-06'
  method: derived
image: https://apipj.com.br/assets/og.png
description: apipj (MASTER BI TECNOLOGIA LTDA) provides a public API for Brazilian CNPJ company registry lookup. It offers
  free access up to 50,000 queries per month and paid plans for higher volume. The API returns detailed company information
  such as legal name, registration status, address with IBGE code, activity, partners, Simples and MEI status, all in JSON
  directly from the Receita Federal dataset as of September 2026.
url: https://raw.githubusercontent.com/api-evangelist/apipj/refs/heads/main/apis.yml
x-type: company
x-source: harvest:new-submission
x-tier: profiled
x-tier-reason: enrichment pass 2026-10-14 (modular-v1; was harvest)
specificationVersion: '0.20'
created: '2026-10-14'
modified: '2026-10-14'
tags:
- Company
- Brazil
- CNPJ
- Registry
- Public APIs
tags_raw:
- Company
- Brazil
- CNPJ
- Registry
- Public API
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
common:
- type: Spectral
  url: rules/apipj-rules.yml
- type: Vocabulary
  url: vocabulary/apipj-vocabulary.yml
- type: Sandbox
  url: sandbox/apipj-sandbox.yml
- type: Conformance
  url: conformance/apipj-conformance.yml
- type: LLMsTxt
  url: llms/apipj-llms.txt
- type: WellKnown
  url: well-known/apipj-well-known.yml
- type: Hosts
  url: hosts/apipj-hosts.yml
- type: SDKs
  url: packages/apipj-packages.yml
- type: Packages
  url: packages/apipj-packages.yml
- type: Sandbox
  url: https://apipj.com.br/sandbox
- type: DomainSecurity
  url: security/apipj-domain-security.yml
- type: Website
  url: https://apipj.com.br
- type: Documentation
  url: https://apipj.com.br/docs
- type: Pricing
  url: https://apipj.com.br/precos
- type: TermsOfService
  url: https://apipj.com.br/termos
- type: PrivacyPolicy
  url: https://apipj.com.br/privacidade
- type: StatusPage
  url: https://apipj.com.br/status
- type: GettingStarted
  url: https://apipj.com.br/guias
apis:
- name: CNPJ Lookup API
  description: API de consulta de CNPJ a partir dos dados abertos da Receita Federal.
  humanURL: https://apipj.com.br/docs
  baseURL: https://apipj.com.br
  properties: []
  aid: apipj:cnpj-lookup-api
- aid: apipj:apipj-billing-api
  name: apipj (MASTER BI TECNOLOGIA LTDA) Billing API
  description: Assinaturas (Stripe; Asaas como alternativa)
  humanURL: https://apipj.com.br/docs
  tags:
  - Billing
  properties:
  - type: OpenAPI
    url: openapi/apipj-billing-api-openapi.yml
- aid: apipj:apipj-chaves-api
  name: apipj (MASTER BI TECNOLOGIA LTDA) Chaves API
  description: Chaves de API
  humanURL: https://apipj.com.br/docs
  tags:
  - Chaves
  properties:
  - type: OpenAPI
    url: openapi/apipj-chaves-api-openapi.yml
- aid: apipj:apipj-consulta-api
  name: apipj (MASTER BI TECNOLOGIA LTDA) Consulta API
  description: Consulta de CNPJ (exige chave de API ou sessão do site)
  humanURL: https://apipj.com.br/docs
  tags:
  - Consulta
  properties:
  - type: OpenAPI
    url: openapi/apipj-consulta-api-openapi.yml
- aid: apipj:apipj-conta-api
  name: apipj (MASTER BI TECNOLOGIA LTDA) Conta API
  description: Cadastro, login e perfil (sessão por cookie)
  humanURL: https://apipj.com.br/docs
  tags:
  - Conta
  properties:
  - type: OpenAPI
    url: openapi/apipj-conta-api-openapi.yml
- aid: apipj:apipj-interno-api
  name: apipj (MASTER BI TECNOLOGIA LTDA) Interno API
  description: Rotas internas (webhooks)
  humanURL: https://apipj.com.br/docs
  tags:
  - Interno
  properties:
  - type: OpenAPI
    url: openapi/apipj-interno-api-openapi.yml
- aid: apipj:apipj-p-blico-api
  name: apipj (MASTER BI TECNOLOGIA LTDA) Público API
  description: Sem autenticação
  humanURL: https://apipj.com.br/docs
  tags:
  - Público
  properties:
  - type: OpenAPI
    url: openapi/apipj-p-blico-api-openapi.yml
x-submission-notes: Brazilian CNPJ company-registry lookup API (public registry data), named operating company, documented
  endpoints
x-submission-probe: root 200, docs 200; soft-404 ok
x-submitted-by: brunogalizzi@masterbi.com (apis.io/add, 2026-10-13)
x-enrichment:
  date: '2026-10-14'
  status: enriched
  artifacts_added: 18
  pass: modular-v1
  engine: identity=local,contract=local,surfaces=local,docs=local,regulatory=local

apipj (MASTER BI TECNOLOGIA LTDA) — frequently asked questions

Does apipj (MASTER BI TECNOLOGIA LTDA) have an API?

Yes. APIs.io lists 7 APIs from apipj (MASTER BI TECNOLOGIA LTDA), including CNPJ Lookup API, apipj (MASTER BI TECNOLOGIA LTDA) Billing API and apipj (MASTER BI TECNOLOGIA LTDA) Chaves API, and 4 more.

Is there an OpenAPI specification for the apipj (MASTER BI TECNOLOGIA LTDA)?

Yes. APIs.io indexes 6 OpenAPI specifications for apipj (MASTER BI TECNOLOGIA LTDA), each linked for download from this page.

Is the apipj (MASTER BI TECNOLOGIA LTDA) ready for AI agents?

apipj (MASTER BI TECNOLOGIA LTDA) has a Kin Score of 29.6 out of 100 (thin) and an Agent Readiness score of 37.6 (agent-ready), scored by API Evangelist on 2026-11-06.

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