Open-source graph infrastructure that cross-references Brazil's public databases to generate actionable intelligence for civic improvement.
Discord | Twitter | Website | Contributing
br/acc is a decentralized movement of Brazilian builders using technology and open data to make public information more accessible. This repository is one of its projects: an open-source graph infrastructure that ingests official Brazilian public databases — company registries, health records, education metrics, employment data, public finances, procurement, environment — and normalizes them into a single queryable graph.
It makes public data that is already open but scattered across dozens of portals accessible in one place. It does not interpret, score, or rank results — it surfaces connections and lets users draw their own conclusions.
- 45 data pipelines — CNPJ, TSE, DataSUS, INEP, CAGED, RAIS, IBAMA, SICONFI, PNCP, Portal da Transparencia, and 35 more
- Neo4j graph database — entities, relationships, and connections normalized into a single queryable graph
- React frontend — search, explore corporate networks, and analyze entity connections
- Public API — programmatic access to graph data via FastAPI
- Reproducible ETL — every data source has a download script and a transform-load pipeline
- Privacy-first — LGPD compliant, public-safe defaults, no personal data exposure
cp .env.example .env # set NEO4J_PASSWORD
make dev # start all services
export NEO4J_PASSWORD=your_password
make seed # load sample dataYou should see all containers running. Verify with:
- API: http://localhost:8000/health
- Frontend: http://localhost:3000
- Neo4j Browser: http://localhost:7474
| Layer | Technology |
|---|---|
| Graph DB | Neo4j 5 Community |
| Backend | FastAPI (Python 3.12+, async) |
| Frontend | Vite + React 19 + TypeScript |
| ETL | Python (pandas, httpx) |
| Infra | Docker Compose |
graph LR
A[Public Data Sources] --> B[ETL Pipelines]
B --> C[(Neo4j)]
C --> D[FastAPI]
D --> E[React Frontend]
D --> F[Public API]
api/ FastAPI backend (routes, services, models)
etl/ ETL pipelines and download scripts
frontend/ React app (Vite + TypeScript)
infra/ Docker, Neo4j schema, seed scripts
scripts/ Utility and automation scripts
docs/ Documentation, brand assets, legal index
data/ Downloaded datasets (git-ignored)
| Method | Route | Description |
|---|---|---|
| GET | /health |
Health check |
| GET | /api/v1/public/meta |
Aggregated metrics and source health |
| GET | /api/v1/public/graph/company/{cnpj_or_id} |
Public company subgraph |
| GET | /api/v1/public/patterns/company/{cnpj_or_id} |
Pattern analysis (when enabled) |
Full interactive docs available at http://localhost:8000/docs after starting the API.
We welcome contributions of all kinds — code, data pipelines, documentation, and bug reports. Check open issues for good first tasks, or open a new one to discuss your idea.
If you find this project useful, star the repo — it helps others discover it.
If you want to support development directly:
| Network | Address |
|---|---|
| Solana | HFceUyei1ndQypNKoiYSsHLHrVcaMZeNBeRhs8LmmkLn |
| Ethereum | 0xbB3538D3e1B1Dd7c916BE7DfAC9ac7e322f592c7 |
- Discord: discord.gg/YyvGGgNGVD
- Twitter: @brunoclz
- Website: bracc.org
- Brazilian Accelerationism Community on X
All data processed by this project is public by law. Every source is published by a Brazilian government portal or international open-data initiative and made available under one or more of the following legal instruments:
| Law | Scope |
|---|---|
| CF/88 Art. 5 XXXIII, Art. 37 | Constitutional right to access public information |
| Lei 12.527/2011 (LAI) | Freedom of Information Act — regulates access to government data |
| LC 131/2009 (Lei da Transparencia) | Mandates real-time publication of fiscal and budget data |
| Lei 13.709/2018 (LGPD) | Data protection — Art. 7 IV/VII allow processing of publicly available data for public interest |
| Lei 14.129/2021 (Governo Digital) | Mandates open data by default for government agencies |
Brazil Dataset Matrix (Legal Basis)
| # | Source | Portal | Legal Basis |
|---|---|---|---|
| 1 | CNPJ (Company Registry) | Receita Federal | LAI, CF Art. 37 |
| 2 | TSE (Elections & Donations) | dadosabertos.tse.jus.br | Lei 9.504/1997 (Lei Eleitoral), LAI |
| 3 | Portal da Transparencia | portaldatransparencia.gov.br | LC 131/2009, LAI |
| 4 | CEIS/CNEP (Sanctions) | Portal da Transparencia | LAI, Lei 12.846/2013 (Lei Anticorrupcao) |
| 5 | BNDES (Dev. Bank Loans) | bndes.gov.br | LAI, LC 131/2009 |
| 6 | PGFN (Tax Debt) | portaldatransparencia.gov.br | LAI, Lei 6.830/1980 |
| 7 | ComprasNet (Procurement) | comprasnet.gov.br | Lei 14.133/2021 (Licitacoes), LAI |
| 8 | TCU (Audit Sanctions) | portal.tcu.gov.br | LAI, CF Art. 71 |
| 9 | TransfereGov | transferegov.sistema.gov.br | LC 131/2009, LAI |
| 10 | RAIS (Labor Stats) | PDET/MTE | LAI (aggregate, no personal data) |
| 11 | INEP (Education Census) | dados.gov.br | LAI, Lei 14.129/2021 |
| 12 | DataSUS/CNES (Health) | datasus.saude.gov.br | LAI, Lei 8.080/1990 (SUS) |
| 13 | IBAMA (Embargoes) | dados.gov.br | LAI, Lei 9.605/1998 (Crimes Ambientais) |
| 14 | DOU (Official Gazette) | in.gov.br | CF Art. 37 (publicidade) |
| 15 | Camara (Deputy Expenses) | dadosabertos.camara.leg.br | LAI, CF Art. 37 |
| 16 | Senado (Senator Expenses) | dadosabertos.senado.leg.br | LAI, CF Art. 37 |
| 17 | ICIJ (Offshore Leaks) | offshoreleaks.icij.org | Public interest journalism database |
| 18 | OpenSanctions (Global PEPs) | opensanctions.org | Open-data aggregator (CC-licensed) |
| 19 | CVM (Securities Proceedings) | dados.cvm.gov.br | LAI, Lei 6.385/1976 |
| 20 | CVM Funds | dados.cvm.gov.br | LAI, Lei 6.385/1976 |
| 21 | Servidores (Public Servants) | Portal da Transparencia | LC 131/2009, LAI |
| 22 | CEAF (Expelled Servants) | portaldatransparencia.gov.br | LAI, Lei 8.112/1990 |
| 23 | CEPIM (Barred NGOs) | portaldatransparencia.gov.br | LAI |
| 24 | CPGF (Govt Credit Cards) | portaldatransparencia.gov.br | LC 131/2009, LAI |
| 25 | Viagens a Servico | portaldatransparencia.gov.br | LC 131/2009, LAI |
| 26 | Renuncias Fiscais | portaldatransparencia.gov.br | LC 131/2009, LAI |
| 27 | Acordos de Leniencia | portaldatransparencia.gov.br | Lei 12.846/2013, LAI |
| 28 | BCB Penalidades | dados.bcb.gov.br | LAI, Lei 4.595/1964 |
| 29 | STF (Supreme Court) | portal.stf.jus.br | CF Art. 93 IX (publicidade judiciaria) |
| 30 | PEP CGU | portaldatransparencia.gov.br | LAI, Decreto 9.687/2019 |
| 31 | TSE Bens (Candidate Assets) | dadosabertos.tse.jus.br | Lei 9.504/1997 |
| 32 | TSE Filiados (Party Members) | dadosabertos.tse.jus.br | Lei 9.096/1995 (Lei dos Partidos) |
| 33 | OFAC SDN | treasury.gov | US public sanctions list |
| 34 | EU Sanctions | data.europa.eu | EU public sanctions list |
| 35 | UN Sanctions | un.org | UN Security Council public list |
| 36 | World Bank Debarment | worldbank.org | Public debarment list |
| 37 | Holdings (derived) | — | Derived from CNPJ data |
| 38 | SIOP (Budget Amendments) | siop.planejamento.gov.br | LC 131/2009, LAI |
| 39 | Senado CPIs | dadosabertos.senado.leg.br | LAI, CF Art. 58 §3 |
All findings are presented as source-attributed data connections, never as accusations. The platform enforces public-safe defaults that prevent exposure of personal information in public deployments.
Public-safe defaults
PRODUCT_TIER=community
PUBLIC_MODE=true
PUBLIC_ALLOW_PERSON=false
PUBLIC_ALLOW_ENTITY_LOOKUP=false
PUBLIC_ALLOW_INVESTIGATIONS=false
PATTERNS_ENABLED=false
VITE_PUBLIC_MODE=true
VITE_PATTERNS_ENABLED=false