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The Potomac Ledger MCP server

Which MCP servers are The Potomac Ledger's own, from the official registry and from asking its own domain, whether they answer, and what they offer. A program checked each of these, nobody copied them from a product page.

read 2026-10-25

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Whose server it is
  • Registry namecom.potomacledger/tradesverified in the MCP registry

The registry name sits under potomacledger.com. The registry only lets a publisher use that namespace after proving control of the domain through DNS or HTTP.

When we asked itchecked 2026-10-25
  • Stateanswerschecked 2026-10-25
  • Tools6
  • Server calls itselfpotomac-ledger
  • Server version1.0.0
  • Protocol version2025-06-18

On 2026-10-25 the server answered initialize and tools/list without a sign-in. First answer in 265 ms.

Should an agent connect itConnect it
  • Its tools do every use case we checked: Flag trades that overlap a lawmaker's committee jurisdiction; Search disclosed stock trades by official, company, or ticker.

Once connected

  • For "Flag trades that overlap a lawmaker's committee jurisdiction", the likely first call is list_conflicts.
  • For "Search disclosed stock trades by official, company, or ticker", the likely first call is search_trades.
  • Parameters are untyped or undescribed in 5 of 6 tools: check arguments before calling.

Said by rules from the measurements above. The likely first call is a model's pick from the tool list; read its description before relying on it.

Measured dailydaily checks: 8, the first on 2026-10-25
  • INITE MCP score97 of 100answers 100 · does the job 100 · definitions 86 · context 100 · connects 100
  • What an agent can do with it2 of 2 use cases
  • Answered100% of days8 of 8 daily checks
  • Median first answer410 ms
  • Space in an agent's context≈ 971 tokensthe definitions of all its tools (6), which an agent carries on every turn
  • Tool definitionsB · 86 of 100
  • Typed results0 of 6 toolsdeclared outputSchema: results come typed, read once
  • Parameters without a description: in 5 of 6

What an agent can do with it

  • can do · Flag trades that overlap a lawmaker's committee jurisdiction
  • can do · Search disclosed stock trades by official, company, or ticker
  • not sure · Query disclosure data from an AI assistant client

Each of the product's use cases, put to Jev against this server's tool list: can an agent do it with these tools?

Worth a look

None of the five warning signs in these definitions.

A program checks the server once a day: initialize and tools/list, no model. Tokens are the definitions' length at about four characters a token. The grade averages six checks of every tool's name, description, schema and annotations; it says how well the tools are described, not whether they work. The score weighs what was measured and nothing else: answering (25%), doing the product's job (25%), definitions (20%), context (10%), use (10%) and how readily a client connects (10%). A part that was not measured is left out, and a hidden instruction caps the score at 40. The state of vendors' MCP servers: method and numbers →

Tools it offers6 tools · read 2026-10-25
  • search_trades

    Search disclosed trades by person, ticker, branch, role (Senate/House/title), buy/sell, conflict flag, minimum dollar amount, and date window. Returns newest first.

  • get_person_trades

    All disclosed trades for a named member of Congress or executive-branch official.

  • get_ticker_activity

    Which officials have disclosed trades in a given ticker.

  • list_recent_trades

    The most recently disclosed trades — newest first. Accepts the same branch/role/since/until/type filters as search_trades so an agent can scope to a chamber or window in one call.

  • list_conflicts

    Trades flagged as a potential conflict (company sector overlaps the official's committee or agency). Accepts branch/role/since/until filters.

  • aggregates

    Summary stats over the filtered set: totals, branch split, most-active officials, top tickers bought/sold (per individual stock), top sectors bought/sold, potential conflict count, date range. Accepts the same…

How to connect

Add the server to your MCP client config. Claude Desktop, Cursor and most other clients read this shape:

{
  "mcpServers": {
    "trades": {
      "type": "http",
      "url": "https://potomacledger.com/mcp"
    }
  }
}

Add it

Claude Code, in a terminal

claude mcp add --transport http potomacledger https://potomacledger.com/mcp

Add to CursorAdd to VS Code

claude.ai, ChatGPT and other clients: add https://potomacledger.com/mcp as a custom connector in the settings.

Each line is something a program found when it went looking: the registry entry, the server's own answer, a spec that parses. A missing line means we did not find it, not that it does not exist.