Renda Fixa

Name: Renda Fixa
Author: jean-knapp

by jean-knappversion 1.0.0i★ 0iRuns in the cloud

Registry namebr.api.rendafixa/renda-fixa

How to install

What it does

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

Connects Runs in the cloud
Account or key Works without a key · add Authorization if you have one (often raises limits)
Category Accounting, finance & tax

Install

Pick the AI app you use, then copy the settings.

Passed 4/4 checks · What you ask goes through the maker’s server (rendafixa.api.br) · ✓ Commands checked Nov 13, 2026

First: which AI do you use?

ClaudeWeb · app · phoneChatGPTWebClaude CodeTerminalCursorCode editorVS CodeCode editorOtherOther apps

Pick your app and the steps appear below.

Works with Claude · about 2 min

No key, nothing to install · Set it up once on claude.ai or the desktop app, then use it in chat · free accounts can add 1 · on Team/Enterprise an Owner adds it

Open Claude’s Connectors page
CustomizeConnectors
Done
Click “Add” → “Custom” → “Web” and fill in these 2 fields
Copy each value into the field with the same name in Claude, then click Continue
Name · NameRenda Fixa
Remote MCP server URL · Addresshttps://rendafixa.api.br/mcp
Click Continue past the sign-in settings Claude detected · under Authentication choose what the maker says (Sign in now, Sign in when needed or No sign in), then click Add
Done
Turn it on in a chat
+ConnectorsRenda Fixa
Done
Try it
Use Renda Fixa and tell me what you can do for me, then show me one thing
✓ If Claude says it is using Renda Fixa or shows a Renda Fixa tool in the answer, you are connected

Menu names checked against Anthropic’s help page on Nov 11, 2026 · your screen may differ slightly by app version

Works with ChatGPT, depending on your plan

Full MCP: ChatGPT Business, Enterprise or Edu on the web · Pro: connects with read/fetch permissions, so tools that change data may not work · Plus: not confirmed in OpenAI’s docs; if you see an add-custom-MCP option on the Plugins page you can try these steps · web only

Open ChatGPT’s add-MCP page on the web
Plugins+Add custom MCP server
Done
Fill in the name and address
Enter a name, paste the address under Connection, tick the risk warning and click Create as a plugin
Name · NameRenda Fixa
Connection · Addresshttps://rendafixa.api.br/mcp
Done
Pick Renda Fixa in a chat
Start a new chat and pick Renda Fixa from your plugins before typing
Done
Try it
Use Renda Fixa and tell me what you can do for me, then show me one thing
✓ If ChatGPT says it is using Renda Fixa or shows a Renda Fixa tool in the answer, you are connected

Menu names checked against OpenAI’s help page on Nov 11, 2026 · your screen may differ slightly by app version

Works with Claude Code · about 2 min

No key, nothing to install

Open Terminal
Mac: press Command+Space and type Terminal · Windows: open PowerShell
Done

Paste this command and press Enter

claude mcp add --transport http --scope user renda-fixa https://rendafixa.api.br/mcp

Done

Type /mcp in Claude Code
You should see Renda Fixa listed as connected
Done
Try it
Use Renda Fixa and tell me what you can do for me, then show me one thing
✓ If Claude Code says it is using Renda Fixa or shows a Renda Fixa tool in the answer, you are connected

Menu names checked against Anthropic’s help page on Nov 11, 2026 · your screen may differ slightly by app version

Works with Cursor · about 2 min

No key, nothing to install

Click this button to open Cursor
Open in Cursor
Cursor asks you to confirm; click Install
Done
Open the AI chat in Cursor in Agent mode
Done
Try it
Use Renda Fixa and tell me what you can do for me, then show me one thing
✓ If Cursor says it is using Renda Fixa or shows a Renda Fixa tool in the answer, you are connected

Menu names checked against Cursor’s help page on Nov 11, 2026 · your screen may differ slightly by app version

Works with VS Code · about 2 min

No key, nothing to install

Click this button to open VS Code
Open in VS Code
VS Code asks you to confirm; click Install
Done
Open the AI chat in VS Code in Agent mode
Done
Try it
Use Renda Fixa and tell me what you can do for me, then show me one thing
✓ If VS Code says it is using Renda Fixa or shows a Renda Fixa tool in the answer, you are connected

Menu names checked against VS Code’s help page on Nov 11, 2026 · your screen may differ slightly by app version

Other apps that use MCP, such as Windsurf, Zed or Gemini CLI, each add servers differently. See how in the app list.

See every app that uses MCP →

Address for apps that connect over the web

Addresshttps://rendafixa.api.br/mcp

JSON settings are under “For developers” below

Stuck? Ask people who use Renda Fixa💬 Discussion →

For developers: Terminal commands and JSON settings

Over the web

Claude Code

claude mcp add --transport http --scope user renda-fixa https://rendafixa.api.br/mcp

Cursor (~/.cursor/mcp.json)

{
  "mcpServers": {
    "renda-fixa": {
      "url": "https://rendafixa.api.br/mcp"
    }
  }
}

VS Code (mcp.json)

{
  "servers": {
    "renda-fixa": {
      "type": "http",
      "url": "https://rendafixa.api.br/mcp"
    }
  }
}

Values you fill in

Authorization secret HTTP header
Optional. 'Bearer ' from rendafixa.api.br/user/api-keys. Without it: a 5-bond preview.

These settings are generated from the maker’s registry entry. If the README says otherwise, follow the README.

At a glance

GitHub stars i: 0
Downloads per weeki: Not on npm/PyPI
Verified domain: ✓ rendafixa.api.br
Licence i: MIT
Connection: Runs in the cloud
Transport: streamable-http
Latest versioni: 1.0.0
Categoryi: Accounting, finance & tax
Published to registryi: Oct 10, 2026
Code last changedi: Oct 10, 2026
Maker: jean-knapp
Repo: jean-knapp/rendafixa-api
Website: rendafixa.api.br
Registry status: Active

Which apps can use it

Based on how this server connects and on each app’s own docs, checked Nov 10, 2026.

Connect over the internet in

Claude ChatGPT Goose LM Studio Msty Studio Cherry Studio Cursor VS Code + GitHub Copilot Visual Studio Windsurf (Devin Desktop)Zed Kiro Cline Continue JetBrains AI Assistant Claude Code Codex CLI Gemini CLI OpenCode nodecode Warp LibreChat Open WebUI Raycast

All apps, with pros and cons →

What it can do

Tool names and descriptions exactly as the server reported them on Nov 8, 2026. The maker wrote them, not us; we show them as plain text.

search_bonds
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 +
list_issuers
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.

Basic checksi

We check information anyone can see; we have not read the code. Checks that do not apply are left out of the count. · Checked Nov 13, 2026

✓ Pass
Maker matches the repo
The registry name was verified against the domain rendafixa.api.br (the registry checks domain ownership)
✓ Pass
Still maintained
Code last changed 34 days ago
– Not applicable
Has a licence
Not applicable: a cloud server run by the owner of rendafixa.api.br; you don't run code from the repo
✓ Pass
Endpoint responds
Responded in 1022 ms (HTTP 200)
– Not applicable
Sign-in with OAuth
No sign-in needed
✓ Pass
No hidden instructions in tool descriptions
Read 2 tool descriptions and found no hidden instructions to the AI

Discussion

Ask, share a tip or report that it does not work. Sorted by what people marked helpful.

No posts yet. Be the first to ask or share.

Posts here are written by users, not the PopNx team.

User reviews

No reviews yet

Compared with others in Accounting, finance & taxi

More stars than 0% of the other 3178 servers in this category
Published to the registry more recently than 47% of the other 3178 servers in this category
Basic checks equal to or better than 100% of the other 3178 servers in this category

Compared with every active server in this category in the registry. Stars count only when the publisher owns the repo.

Common questions

Is Renda Fixa safe?

It passed 4 of 4 applicable basic checks. We have not read the code. Before adding a key or token, see what access the server asks for and use a key with only the permissions you need.

What keys or codes does it need?

The registry does not list a required key, though some servers ask you to sign in on first use.

Does it run on my computer or in the cloud?

It runs in the maker’s cloud. Connect over the internet with nothing to install, but what you send passes through the maker’s servers.

Is it still maintained?

The GitHub repo last changed 34 days ago, and the latest version (1.0.0) reached the registry 34 days ago.

Which apps can use it?

Apps that support MCP, such as Claude Desktop, Claude Code, Cursor and VS Code. It connects by URL, so apps that accept remote MCP servers work too, such as ChatGPT on the web (full MCP on Business and above; Pro read-only).

What can I use instead?

In the same category: CCXT, Finance Toolkit, AKQuant

Others in the same category

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Reading a card:↓ Downloads per weeki★ GitHub starsiThree pillars: reviews · checks · usageiUpdated = latest version published to the registryi

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README from the maker

Open the README

Copied from the maker’s repo as written. PopNx MCP has not reviewed or endorsed it. HTML, images and scripts are removed. Links lead off this site.

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

Parâmetro	Valores
`product`	`cdb`, `lci`, `lca`, `cri`, `cra`, `deb`, `tpf`, `td`, `lf`, `misc`	lista separada por vírgula
`index`	`cdi`, `cdi+`, `ipca`, `ipca+`, `selic*`, `selic+`, `pre`	codifique `+` como `%2B`
`bank`	códigos numéricos	ex.: `341` Itaú, `77` Inter, `208` BTG
`tax_free`	`0` / `1`	só tributados / só isentos de IR
`fgc`	`0` / `1`	sem / com cobertura do FGC
`format`	`json` / `csv`

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=rf_SUA_CHAVE

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

Licença

Os exemplos deste repositório são MIT. O uso da API está sujeito aos planos e termos do Renda Fixa.

Renda Fixa

What it does

Install

Open Claude’s Connectors page

Click “Add” → “Custom” → “Web” and fill in these 2 fields

Turn it on in a chat

Try it

Open ChatGPT’s add-MCP page on the web

Fill in the name and address

Pick Renda Fixa in a chat

Try it

Open Terminal

Paste this command and press Enter

Type /mcp in Claude Code

Try it

Click this button to open Cursor

Open the AI chat in Cursor in Agent mode

Try it

Click this button to open VS Code

Open the AI chat in VS Code in Agent mode

Try it

Over the web

Values you fill in

At a glance

Which apps can use it

Related guides

What it can do

Basic checksi

Maker matches the repo

Still maintained

Has a licence

Endpoint responds

Sign-in with OAuth

No hidden instructions in tool descriptions

Discussion

User reviews

Compared with others in Accounting, finance & taxi

Common questions

Others in the same category

CCXT

Finance Toolkit

AKQuant

README from the maker

Renda Fixa API

Experimente agora (sem chave)

Filtros

Exemplos

Planilhas

Assistentes de IA (MCP)

Licença