CompoundPulse Proof — MCP server

A second opinion on any ticker, before you act. The case for it, the case against it, and the price that proves it wrong.

Free. No API key. No account.

npx proof-mcp

Claude Desktop / Cursor / Cline

{
  "mcpServers": {
    "proof": {
      "command": "npx",
      "args": ["-y", "proof-mcp"]
    }
  }
}

Related MCP server: TickerAPI

The tools

get_proof(ticker) returns, for a US stock, major ETF or major crypto pair:

NVDA — NO TRADE   (as of the 2026-08-14 session)
Price at that session: $225.01 (-0.07%)

Nothing to do yet. This only becomes a trade on a full daily close
above 227.49 or below 190.01 — until then it is stuck in the middle
of its own range.

PROVES IT WRONG:      $190.01
TURNS CONSTRUCTIVE:   $227.49

get_calibration() audits CompoundPulse itself. It returns the number of claims fixed before their outcomes, pending and matured counts, claim-hash integrity, the latest session root, and every published invalidation. It deliberately says NOT YET instead of inventing an accuracy number while claims are still pending.

Public misses feed: https://www.compoundpulse.io/track/invalidations.xml

What it is not

It does not predict prices and returns no price target. It makes the assumptions behind a decision explicit before capital is committed.

NO TRADE and WAIT are returned unmodified — the tool will not launder a non-signal into a buy. If a symbol isn't covered you get a clear "not covered, and here's why", never a bearish read by accident.

Why you can check it

• Every call is recorded before the outcome — pending claims stay out of every score: https://www.compoundpulse.io/track

• Every strategy test, including the failures — https://www.compoundpulse.io/research

• Levels are fixed for the session and are not rewritten after the move, so any past call can be checked against what actually happened.

Most tools in this category publish neither. A score you can't audit is an opinion with a decimal point.

Privacy

The server creates one random install identifier in ~/.compoundpulse/proof-mcp-install-id. It contains no name, email, account or device data. CompoundPulse hashes it before logging, so we can distinguish one active install making 125 calls from 125 active installs making one call. The raw identifier is never logged.

Disable it at any time:

COMPOUNDPULSE_TELEMETRY=off npx -y proof-mcp

The public REST endpoint is the only service it contacts. Read src/index.js; the complete behavior is visible there.

The underlying REST endpoint is public too, if you'd rather skip MCP:

curl https://www.compoundpulse.io/api/proof/NVDA

Coverage

167 symbols: US mega/large caps, major sector and index ETFs, and major crypto pairs (-USD suffix). A verdict is only published with at least 25 completed daily sessions of real data behind it.

MIT licensed. Data free to use and quote; attribution requested, not required.