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DataJud (CNJ) MCP Server

answering

DataJud (CNJ) is answering right now. Last checked 6 min ago. It exposes 10 tools. Last commit 11 Jun 2026.

Public lookup of Brazilian court cases (metadata + docket) via the CNJ/DataJud API. Free, no login.

Uptime history 48 days of history · worst day 97%
48 days agonow
98.9%
Uptime 24h
91 of 92 checks
10
Tools
read from the server
860 ms
Response time
average over 24h
3
Stars
last commit 11 Jun 2026

What changed 126

Every tool that appeared, vanished or quietly changed what it asks for. Recorded since 8 August 2026. No other catalogue keeps this.

13 Sep a tool changed version2 times that day
9 Sep a tool changed version
8 Sep 2 tool descriptions were rewritten datajud_get_processo, datajud_movimentos
8 Sep a tool changed version
7 Sep a tool changed version
6 Sep a tool changed version
5 Sep a tool changed version
4 Sep a tool changed version
3 Sep a tool changed version3 times that day
2 Sep a tool changed version6 times that day
and 115 more, back to 8 August 2026

DataJud (CNJ) does not always answer

Over the last week it answered 98.8% of our checks. We check every 15 minutes, so you hear about the next outage within the hour — not from your users.

Three servers free · no card

Connect this server

Endpoint below is the one we actually reach during checks — not the one copied from a README. Last verified 6 min ago.

run in your terminal
claude mcp add datajud-mcp --transport http https://api.mcp.ai/p_datajud
~/Library/Application Support/Claude/claude_desktop_config.json
{
  "mcpServers": {
    "datajud-mcp": {
      "url": "https://api.mcp.ai/p_datajud"
    }
  }
}
~/.codex/config.toml
[mcp_servers.datajud-mcp]
url = "https://api.mcp.ai/p_datajud"
.cursor/mcp.json
{
  "mcpServers": {
    "datajud-mcp": {
      "url": "https://api.mcp.ai/p_datajud"
    }
  }
}
.vscode/mcp.json
{
  "mcpServers": {
    "datajud-mcp": {
      "url": "https://api.mcp.ai/p_datajud"
    }
  }
}

Available tools 10

Read directly from the server with tools/list, grouped by what they act on. If a tool disappears, we record the date.

datajud
datajud_get_processo
Busca processo por número CNJ e tribunal. Retorna `tribunal`, `total`, `count` e `processos[]` (metadados e movimentações por instância). Só sem resultados inclui `ausencia`. Aceita número com ou sem máscara. Quando `processos` está vazio, `ausencia` traz o motivo provável (numero_invalido | tribunal_divergente | nao_publicado | carga_ausente | indeterminado) e a explicação. Com resultados, esse bloco não é retornado. Leia esse bloco antes de repetir a consulta em outra tool: a API pública do CNJ não publica processo em segredo de justiça, então `nao_publicado` NÃO significa que o processo não existe.
datajud_movimentos
Consulta movimentações por número CNJ e tribunal. Retorna `tribunal`, `numeroProcesso` e `instancias[]` (timeline e metadados). Só sem resultados inclui `ausencia`. Ideal para detectar movimentação nova. Quando `instancias` está vazio, `ausencia` traz o mesmo diagnóstico de datajud_get_processo (motivo provável + explicação). Com resultados, esse bloco não é retornado.
datajud_raw_query
Avançado: envia um corpo de query Elasticsearch cru pro índice do tribunal (escape hatch). Use search_after pra paginar além de 10k.
datajud_search
Busca processos em um tribunal por classe, órgão julgador e/ou assunto (códigos das tabelas do CNJ), paginada e ordenada por data de ajuizamento. DataJud NÃO indexa nome de parte nem OAB — pra isso use o MCP djen/escavador.
authenticate
authenticate
MCP.AI for IDE agents (Cursor, etc.): log in in the browser, copy the access token. Best: add it to this server's config as a header `Authorization: Bearer <token>` for a permanent, non-expiring connection. Or paste it here for a session-only login: call with { token: "<jwt>" } after the user pastes, or with no args to get the link.
connect
connect
Returns connection status and URLs. When all providers are connected, returns authenticated:true and empty pending[]. When credentials are missing, returns connect_url for the toolkit and per-install URLs.
marketplace
marketplace
The official mcp.ai marketplace — the in-platform catalog of every MCP/tool, AND the way to run them. Covers capability requests like "find an MCP that does X", "consulta um CPF", "is there a tool for Y". Core flow: action=search discovers MCPs by intent → describe returns one MCP's full profile (every tool with its id + params, pricing, auth) so you pick the right tool_id → invoke RUNS that tool. KEY: invoke works even when the MCP is NOT installed — it runs the tool pontualmente (one-off), without adding the MCP to the toolkit and without bloating the tool list. If the MCP needs a credential/login, invoke returns a connect link; if it is paid and the wallet is empty, invoke returns a checkout/top-up link (the user opens it, then you retry). Use install only to make an MCP PERMANENT in the active toolkit (its tools then show up natively in future sessions); prefer invoke for a single/occasional use. list_tools lists what is callable right now. subscribe/cancel handle per-MCP billing; report_bug sends feedback; request_mcp asks us to build a NEW MCP when nothing fits. Search/describe flag installed_in_toolkit vs installed_in_workspace. Writes (install/uninstall/subscribe/cancel and the one-off install behind invoke) require workspace owner/admin. It also carries the mcp.ai PROMPT LIBRARY, which is about ready-made prompt TEXT rather than MCPs: search_prompts finds one, get_prompt returns its full text with {{variables}} filled, and publish_prompt saves a prompt and returns a shareable mcp.ai/p/<slug> link that opens without login.
report
report_bug
Report a bug, missing feature, or send feedback. Include the conversation array with recent messages for reproduction.
show
show_version
Show the current MCP platform and adapter versions.
toolkit
toolkit_info
Returns the current toolkit state: installed MCPs, their connection status, the accounts connected to each one, and how many catalog tools each exposes.

Endpoints

URLTransportStateLatencyChecked
https://api.mcp.ai/p_datajud streamable-http answering 530 ms 6 min ago

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DataJud (CNJ) — questions

Answers built from our own checks of this server.

What can DataJud (CNJ) do?
It exposes 10 tools, read directly from the server on our last check. Among them: authenticate, connect, datajud_get_processo, datajud_movimentos, datajud_raw_query, datajud_search and 4 more. The full list with descriptions is on this page — we take it from the server itself via tools/list, not from a README. How MCP servers expose tools in the first place →
Is DataJud (CNJ) working right now?
We send a real MCP handshake every 15 minutes. Over the last 24 hours 91 of 92 checks got a reply (98.9%), average response time 860 ms. The bar chart above shows every period we have measured.
How do I connect DataJud (CNJ)?
Copy the ready config from this page — we generate it for Claude Code, Claude Desktop, Codex, Cursor and VS Code, each with the file path that client actually reads. It is a remote server, so there is nothing to install — the client connects to the address.
Does DataJud (CNJ) need an API key?
No. DataJud (CNJ) completed a full MCP handshake with us as an anonymous client and listed its tools without asking for anything. All 10 of them are readable on this page. This is what we observed, not what the docs claim.
How fast is DataJud (CNJ)?
It answers our handshake in 860 ms on average, which is faster than 12% of all working MCP servers we measure. That is on the slow side — worth knowing if the tool sits inside an interactive loop. The comparison comes from our own checks across the whole registry, every 15 minutes.
Is DataJud (CNJ) open source?
Yes — it is published under the MIT licence and 3 stars on GitHub. The source link is on this page, so you can read exactly what it does with your data before you connect it.