Brazilian fixed income (CDB, LCI, LCA, CRI, CRA, Tesouro) ranked by net-of-tax and real return.
Connect Remote server
claude mcp add --transport http renda-fixa https://rendafixa.api.br/mcp --header "Authorization: Bearer <YOUR_API_KEY>"
{
"mcpServers": {
"renda-fixa": {
"url": "https://rendafixa.api.br/mcp",
"headers": {
"Authorization": "Bearer <YOUR_API_KEY>"
}
}
}
}
{
"servers": {
"renda-fixa": {
"type": "http",
"url": "https://rendafixa.api.br/mcp",
"headers": {
"Authorization": "Bearer <YOUR_API_KEY>"
}
}
}
}
Settings > Connectors > Add custom connector
URL: https://rendafixa.api.br/mcp
Replace the values in angle brackets with your own. Keys stay on your machine; we never see them.
Tools 2 found in our last check
search_bondsSearch 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_issuersList 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.
Headers
| Name | Description |
|---|---|
AuthorizationOptional, secret | Optional. 'Bearer <API key>' from rendafixa.api.br/user/api-keys. Without it: a 5-bond preview. |
Details
| Endpoint | https://rendafixa.api.br/mcp (Streamable HTTP) |
| First published | 9 Oct 2026 |
| Last updated | 9 Oct 2026 |
| Registry name | br.api.rendafixa/renda-fixa |
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