CARF (Recursos Fiscais) MCP Server

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answering

CARF (Recursos Fiscais) is answering right now. Last checked 9 min ago. It exposes 7 tools. Last commit 15 Aug 2026.

Looks up proceedings of a person or company at the Administrative Board of Tax Appeals (CARF) from t

Uptime history 17 days of history · worst day 97%

17 days agonow

100.0%

Uptime 24h

91 of 91 checks

Tools

read from the server

1113 ms

Response time

average over 24h

Stars

last commit 15 Aug 2026

CARF (Recursos Fiscais) does not always answer

Over the last week it answered 99.4% of our checks. We check every 15 minutes, so you hear about the next outage within the hour — not from your users.

Connect this server

Endpoint below is the one we actually reach during checks — not the one copied from a README. Last verified 9 min ago.

Claude Code Claude Desktop Codex Cursor VS Code

run in your terminal

claude mcp add carf-mcp --transport http https://api.mcp.ai/p_carf

~/Library/Application Support/Claude/claude_desktop_config.json

{
  "mcpServers": {
    "carf-mcp": {
      "url": "https://api.mcp.ai/p_carf"
    }
  }
}

~/.codex/config.toml

[mcp_servers.carf-mcp]
url = "https://api.mcp.ai/p_carf"

.cursor/mcp.json

{
  "mcpServers": {
    "carf-mcp": {
      "url": "https://api.mcp.ai/p_carf"
    }
  }
}

.vscode/mcp.json

{
  "mcpServers": {
    "carf-mcp": {
      "url": "https://api.mcp.ai/p_carf"
    }
  }
}

Available tools 7

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

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.

carf

carf_consultar

Consulta processos de uma pessoa ou empresa no Conselho Administrativo de Recursos Fiscais (CARF) a partir do CPF ou CNPJ. Hospedado pela plataforma, sem credenciais, pague por consulta com crédito pré-pago. Consulta informação de ACESSO PÚBLICO em bases e fontes oficiais (a mesma disponível ao cidadão), não é dado privado nem sigiloso. O cliente é o controlador dos dados e responde pela finalidade legítima (LGPD).

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

URL	Transport	State	Latency	Checked
https://api.mcp.ai/p_carf	streamable-http	answering	247 ms	9 min ago

Alternatives to CARF (Recursos Fiscais)

same job, measured the same way

CVM Processos Sancionadores

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Looks up enforcement (sanctioning) administrative proceedings for a person or company at the CVM fro

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CVM (Valores Mobiliários)

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Looks up the registration of a person or company at the Brazilian Securities Commission (CVM) from t

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Sintegra (Cadastros Estaduais)

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Looks up the state taxpayer registration of a person or company in Sintegra from the CPF or CNPJ, st

7 tools answering

Processos TRT (Justiça do Trabalho)

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Looks up cases of a person or company at the Regional Labor Court (TRT) from the CPF or CNPJ and reg

7 tools answering

MPT (Ministério Público do Trabalho)

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Looks up records of a person or company at the Labor Public Prosecutor's Office (MPT) from the CPF o

7 tools answering

Infrações Trabalhistas (MTE)

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Looks up labor violations recorded by the Ministry of Labor for a person or company from the CPF or

7 tools answering

Sintegra CCC

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Looks up the centralized taxpayer registry (CCC) in Sintegra for a person or company from the CPF or

7 tools answering

CGU (Controladoria Geral da União)

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Looks up records of a person or company at the Federal Comptroller General (CGU) from the CPF or CNP

7 tools answering

CARF (Recursos Fiscais) — questions

Answers built from our own checks of this server.

What can CARF (Recursos Fiscais) do?

It exposes 7 tools, read directly from the server on our last check. Among them: authenticate, carf_consultar, connect, marketplace, report_bug, show_version and 1 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 CARF (Recursos Fiscais) working right now?

We send a real MCP handshake every 15 minutes. Over the last 24 hours 91 of 91 checks got a reply (100.0%), average response time 1113 ms. The bar chart above shows every period we have measured.

How do I connect CARF (Recursos Fiscais)?

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 CARF (Recursos Fiscais) need an API key?

No. CARF (Recursos Fiscais) completed a full MCP handshake with us as an anonymous client and listed its tools without asking for anything. All 7 of them are readable on this page. This is what we observed, not what the docs claim.

How fast is CARF (Recursos Fiscais)?

It answers our handshake in 1113 ms on average, which is faster than 5% 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 CARF (Recursos Fiscais) open source?

Yes — it is published under the MIT licence and 0 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.