MCP.Market

Renda Fixa MCP server

online · 100% uptime
by rendafixa.api.br·br.api.rendafixa/renda-fixa·v1.0.0

Brazilian fixed income (CDB, LCI, LCA, CRI, CRA, Tesouro) ranked by net-of-tax and real return.

B84/100grade B
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Safety scan
B84/100

full report

Adoption
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If you have run it, two minutes of your experience saves the next person an afternoon.

Renda Fixa tools (2)

write = sends, deletes, buys or posts
  • list_issuersFree

    List the banks/brokers present in the data with their numeric codes and how many bonds each has, to use as the 'bank' filter of search_bonds.

  • search_bondsFree

    Search active Brazilian fixed-income bonds and rank them. Every bond comes with net_annualized_return (after IR, to maturity) and real_annualized_return (above IPCA), both decimals. 'rate' depends on 'index': cdi* 1.05 = 105% of CDI, cdi+ 0.02 = CDI + 2% a.a., ipca+ 0.06 = IPCA + 6% a.a., pre 0.13 = 13% a.a. fixed. Without an API key the result is a short preview.

Public scan report

scanner v0.1.10 · 2026-10-09 · same rubric, same numbers if you re-run it

no findings
  • –Code scanremote-only server, no package to scann/a
  • Live reliabilityremote reachable in 2022ms17/20
  • Tool poisoning2 tool descriptions checked15/15
  • Auth qualityAPI key sent as a header8/15
  • Maintenancelast push 0 days ago15/15
  • Maintainer identityendpoint served from the registry-verified namespace domain8/10
Overall 84/100. Components that don't apply are left out of the denominator. Any critical finding is an F.RubricAppeal a findingJSON

How Renda Fixa compares

Against every graded MCP server, from our own scans and uptime checks. Updated after each scan run.

Safety score
84/100
higher than 68% of 48,255 servers
Tools
2
the typical server has 7
Tools that change things
0%
typical: 0%. Fewer write tools means less an agent can break
Uptime
100%
of our recent checks; the typical remote server answers 100%
Response time
1,296 ms
faster than 7% of 30,031 servers

What its tools let an agent do: 2 read

Install Renda Fixa in Claude Code, Cursor or VS Code

claude mcp add --transport http renda-fixa https://rendafixa.api.br/mcp
Add to Cursor

What the publisher says

From the Renda Fixa repository's README, as published. We do not edit it. Read it on GitHub

Renda Fixa API

Títulos de renda fixa do Brasil em uma chamada — CDB, LCI, LCA, CRI, CRA, debêntures e Tesouro Direto de vários bancos e corretoras, com retorno líquido após IR e ganho real acima do IPCA já calculados a partir das projeções do Boletim Focus (Banco Central). Atualizado diariamente.

  • REST/JSON — GET https://rendafixa.api.br/api/
  • CSV para planilhas — Google Sheets e Excel, sem programar
  • Servidor MCP — use no Claude, ChatGPT, Cursor e outros assistentes de IA
  • OpenAPI 3.1 — openapi.json

📖 Documentação: https://rendafixa.api.br/docs/api · 💳 Planos: https://rendafixa.api.br/pricing

Experimente agora (sem chave)

Sem chave, a API responde com uma prévia de 5 títulos:

curl "https://rendafixa.api.br/api/"
{
  "response": { "status": "preview", "description": "No API key provided. Showing up to 5 bonds as a preview." },
  "bonds": [
    {
      "name": "CDB 360 DIAS",
      "bank": 77,
      "bank_name": "Banco Inter",
      "product": "cdb",
      "index": "cdi*",
      "rate": 1.05,
      "fgc_protection": true,
      "tax_free": false,
      "min_investment": 100,
      "maturity_date": "2027-05-08",
      "rating": "AA+",
      "net_annualized_return": 0.1165,
      "real_annualized_return": 0.0676
    }
  ]
}

Com uma chave de uma conta com assinatura ativa, a resposta traz todos os títulos. Gere a sua em rendafixa.api.br/user/api-keys.

curl -H "Authorization: Bearer rf_SUA_CHAVE" \
     "https://rendafixa.api.br/api/?product=lci,lca&tax_free=1&fgc=1"

Filtros

Taxas e retornos são decimais: 0.1165 = 11,65% a.a. Detalhes de cada campo e de como os retornos são calculados estão na documentação.

Exemplos

Os títulos isentos de IR que mais rendem, sem nenhuma dependência:

  • Python: examples/python/melhores_isentos.py
  • JavaScript (Node 18+): examples/javascript/melhores-isentos.mjs
RENDAFIXA_KEY=rf_SUA_CHAVE python examples/python/melhores_isentos.py

Planilhas

Google Sheets (planilha em português):

=IMPORTDATA("https://rendafixa.api.br/api/?format=csv&locale=pt-BR&key=rf_SUA_CHAVE")

Em uma planilha em inglês, tire o &locale=pt-BR. Os filtros funcionam na mesma URL: &product=lci,lca&tax_free=1.

Excel: Dados → Da Web → cole a URL acima.

Assistentes de IA (MCP)

A API também é um servidor MCP remoto: https://rendafixa.api.br/mcp. Depois de adicionado, é só perguntar — "qual LCI com FGC rende mais em até 2 anos?".

Claude Code

claude mcp add --transport http rendafixa https://rendafixa.api.br/mcp \
  --header "Authorization: Bearer rf_SUA_CHAVE"

Cursor (.cursor/mcp.json) e outros clientes com configuração em JSON

{
  "mcpServers": {
    "rendafixa": {
      "url": "https://rendafixa.api.br/mcp",
      "headers": { "Authorization": "Bearer rf_SUA_CHAVE" }
    }
  }
}

Claude.ai e ChatGPT (conectores personalizados, que aceitam só uma URL): https://rendafixa.api.br/mcp?key=rfSUACHAVE

Ferramentas: searchbonds (filtra e ordena por retorno líquido, ganho real, vencimento ou aplicação mínima) e listissuers (bancos e códigos). Sem chave, a prévia.

Licença

Shortened. The full README is on GitHub.

Nothing above is checked by us. What we check is on the safety report.

Renda Fixa: common questions

Is Renda Fixa MCP server safe?
Mostly: it is graded B (84/100). Read the Renda Fixa safety report
How do I install Renda Fixa?
It runs remotely at rendafixa.api.br. Add it to Claude Code, Cursor, VS Code or Claude Desktop with the snippets above, or call it through the mcp.market gateway without installing anything.
Does Renda Fixa need an API key?
Yes. The registry entry asks for Authorization.
Is Renda Fixa maintained?
The last commit was 26 days ago (2026-10-09). The latest release is v1.0.0.
Is Renda Fixa up?
100% of our last 28 checks got an answer. We check remote servers about four times a day.
How does Renda Fixa compare with other MCP servers?
safety score 84/100 (higher than 68% of 48,255 servers); tools 2 (the typical server has 7); tools that change things 0% (typical: 0%. Fewer write tools means less an agent can break). Full comparison.