Capitol Ledger runs on your own machine — the client starts it, so there is no endpoint to ping. 147 installs a week from pypi. Last commit 23 Oct 2026.
Read-only House stock disclosures and synthetic portfolio research. Approved pilot key required.
Nothing serious here today
Today is the operative word: we check Capitol Ledger 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 capitol-ledger-mcp -e 'CAPITOL_LEDGER_API_KEY=<CAPITOL_LEDGER_API_KEY>' -- uvx capitol-ledger-mcp{
"mcpServers": {
"capitol-ledger-mcp": {
"command": "uvx",
"args": [
"capitol-ledger-mcp"
],
"env": {
"CAPITOL_LEDGER_API_KEY": "<CAPITOL_LEDGER_API_KEY>"
}
}
}
}[mcp_servers.capitol-ledger-mcp]
command = "uvx"
args = ["capitol-ledger-mcp"]
env = { CAPITOL_LEDGER_API_KEY = "<CAPITOL_LEDGER_API_KEY>" }{
"mcpServers": {
"capitol-ledger-mcp": {
"command": "uvx",
"args": [
"capitol-ledger-mcp"
],
"env": {
"CAPITOL_LEDGER_API_KEY": "<CAPITOL_LEDGER_API_KEY>"
}
}
}
}{
"servers": {
"capitol-ledger-mcp": {
"type": "stdio",
"command": "uvx",
"args": [
"capitol-ledger-mcp"
],
"env": {
"CAPITOL_LEDGER_API_KEY": "<CAPITOL_LEDGER_API_KEY>"
}
}
}
}Put your own value in place of
<CAPITOL_LEDGER_API_KEY> (API key issued after pilot approval at https://capitol-ledger.com/agents#pilot).
The author’s registry entry marks it as required.
Optional settings from the registry entry, left out of the block above:
CAPITOL_LEDGER_API_URL (Capitol Ledger HTTPS API origin).
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Capitol Ledger — questions
Answers built from our own checks of this server.