MCP C6 runs on your own machine — the client starts it, so there is no endpoint to ping. 42 installs a week from npm. Last commit 27 Sep 2026.
DEPRECATED: no live endpoint (baas.c6bank.com.br does not resolve)
Nothing serious here today
Today is the operative word: we check MCP C6 every 15 minutes and re-read its code on every release. Watch it and you find out the day that stops being true.
Connect this server
This server runs on your own machine — install it with the package manager and the client starts it for you. Package name taken from the official registry entry.
claude mcp add mcp-c6 -e 'C6_CLIENT_ID=<C6_CLIENT_ID>' -e 'C6_CLIENT_SECRET=<C6_CLIENT_SECRET>' -e 'C6_CERT_PATH=<C6_CERT_PATH>' -e 'C6_KEY_PATH=<C6_KEY_PATH>' -- npx -y @codespar/mcp-c6{
"mcpServers": {
"mcp-c6": {
"command": "npx",
"args": [
"-y",
"@codespar/mcp-c6"
],
"env": {
"C6_CERT_PATH": "<C6_CERT_PATH>",
"C6_CLIENT_ID": "<C6_CLIENT_ID>",
"C6_CLIENT_SECRET": "<C6_CLIENT_SECRET>",
"C6_KEY_PATH": "<C6_KEY_PATH>"
}
}
}
}[mcp_servers.mcp-c6]
command = "npx"
args = ["-y", "@codespar/mcp-c6"]
env = { C6_CLIENT_ID = "<C6_CLIENT_ID>", C6_CLIENT_SECRET = "<C6_CLIENT_SECRET>", C6_CERT_PATH = "<C6_CERT_PATH>", C6_KEY_PATH = "<C6_KEY_PATH>" }{
"mcpServers": {
"mcp-c6": {
"command": "npx",
"args": [
"-y",
"@codespar/mcp-c6"
],
"env": {
"C6_CERT_PATH": "<C6_CERT_PATH>",
"C6_CLIENT_ID": "<C6_CLIENT_ID>",
"C6_CLIENT_SECRET": "<C6_CLIENT_SECRET>",
"C6_KEY_PATH": "<C6_KEY_PATH>"
}
}
}
}{
"servers": {
"mcp-c6": {
"type": "stdio",
"command": "npx",
"args": [
"-y",
"@codespar/mcp-c6"
],
"env": {
"C6_CERT_PATH": "<C6_CERT_PATH>",
"C6_CLIENT_ID": "<C6_CLIENT_ID>",
"C6_CLIENT_SECRET": "<C6_CLIENT_SECRET>",
"C6_KEY_PATH": "<C6_KEY_PATH>"
}
}
}
}Put your own values in place of
<C6_CLIENT_ID> (C6 OAuth client_id issued via the Developer Portal after contract onboarding), <C6_CLIENT_SECRET> (C6 OAuth client_secret), <C6_CERT_PATH> (Absolute path to the mTLS client certificate (.crt or .pem). BACEN mandates mTLS for Pix v2), <C6_KEY_PATH> (Absolute path to the mTLS private key (.key or .pem)).
The author’s registry entry marks them as required.
Optional settings from the registry entry, left out of the block above:
C6_ENV (Environment: 'sandbox' or 'production'. Defaults to 'sandbox').
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MCP C6 — questions
Answers built from our own checks of this server.