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FinzData market data

by FinzData · remote · no sign-in to list tools · v1.0.0 · published by GitHub user FinzData

US stocks incl. delisted, futures, CPI/macro vintages, point-in-time GEX, 13F, COT, backtests.

Deletes · 1Final · 1Changes · 9
CompareRegistry entry

29 tools: 1 can delete or cancel things, 1 do something that can't be undone, 9 change things and 18 only read.

Scanned Oct 21, 2026

2 checks matched something in the tool definitions. No finding is not a safety guarantee. How the checks work.

claude mcp add --transport http finzdata https://api.finzdata.com/mcp

Findings

Matches of fixed checks, with the text they matched.

2 warn
  • Warnrun_backtest

    The server marks "run_backtest" read-only (readOnlyHint: true), and its own name, description or input give the class "write".

    Matched text

    annotations: {"readOnlyHint":true,"destructiveHint":false,"openWorldHint":false}; The name "run_backtest" says "run": a word for a change.

    What this check looks for
  • Warnsurvivorship_audit

    The server marks "survivorship_audit" read-only (readOnlyHint: true), and its own name, description or input give the class "write".

    Matched text

    annotations: {"readOnlyHint":true,"destructiveHint":false,"openWorldHint":false}; The description's first verb is "run": a word for a change.

    What this check looks for

Tools

Open a tool for its reasons and full description. Descriptions are the publisher's own words, shown as they are.

29 tools

Deletes or cancels 1Claude Code: deny
  • retire_strategyRetire one of your verified strategy records: it stops accruing new forward results, keeps its full history and stays public on the Verified board marked retired.No findings

    Why it is in this group

    • Nothing in its name or description says what it does, so it is counted as a write.
    • The server marks it destructive (destructiveHint: true).
    Description, as the server wrote it
    Retire one of your verified strategy records: it stops accruing new forward results, keeps its full history and stays public on the Verified board marked retired.

    Annotations the server declares

    • readOnlyHint: false
    • openWorldHint: true
    • destructiveHint: true
    • title: Retire Strategy
Can't be undone 1Claude Code: ask
  • publish_strategyRuns a backtest spec (same format as run_backtest) on the server and publishes it to the FinzData Hub as a public, reproducible strategy page at data.finzdata.com/s/<slug>, forward…No findings

    Why it is in this group

    • The name "publish_strategy" says "publish": a word for a change that another call does not undo.
    Description, as the server wrote it
    Runs a backtest spec (same format as run_backtest) on the server and publishes it to the FinzData Hub as a public, reproducible strategy page at data.finzdata.com/s/<slug>, forward-tracked daily from today. Only server-computed results are stored. Costs one backtest; free accounts may publish 3 a day. visibility='private' keeps it unlisted.

    Annotations the server declares

    • readOnlyHint: false
    • openWorldHint: true
    • destructiveHint: false
    • title: Publish strategy
Changes things 9Claude Code: ask
  • backtest_exportDaily OHLCV bars for one symbol packaged as ready-to-load files for an open-source backtester or trading framework: backtrader, backtesting_py, vectorbt, zipline (csvdir bundle), l…No findings

    Why it is in this group

    • Nothing in its name or description says what it does, so it is counted as a write.
    • The server marks it read-only (readOnlyHint: true), but an annotation never lowers a class.
    Description, as the server wrote it
    Daily OHLCV bars for one symbol packaged as ready-to-load files for an open-source backtester or trading framework: backtrader, backtesting_py, vectorbt, zipline (csvdir bundle), lean (QuantConnect LEAN, base64 zip), nautilus, freqtrade or qlib. Returns files (path, encoding, content) and load_code. Write each file at its path, then run load_code. Clipped to as_of; start defaults to 365 days before end.

    Annotations the server declares

    • readOnlyHint: true
    • openWorldHint: false
    • destructiveHint: false
    • title: Export bars for a backtester
  • claim_mcp_serverclaims a listing for the calling API key so its owner can enable price-accuracy checks; first claimant wins; contact info@finzdata.com to dispute.No findings

    Why it is in this group

    • Nothing in its name or description says what it does, so it is counted as a write.
    Description, as the server wrote it
    claims a listing for the calling API key so its owner can enable price-accuracy checks; first claimant wins; contact info@finzdata.com to dispute.

    Annotations the server declares

    • readOnlyHint: false
    • openWorldHint: false
    • idempotentHint: true
    • destructiveHint: false
    • title: Claim MCP Server
  • comment_strategyPosts a public comment (1-2000 characters) on a Hub strategy, e.g.No findings

    Why it is in this group

    • The name "comment_strategy" says "comment": a word for a change.
    Description, as the server wrote it
    Posts a public comment (1-2000 characters) on a Hub strategy, e.g. a question, a result from a fork or a suggested change. Comments are shown under your handle.

    Annotations the server declares

    • readOnlyHint: false
    • openWorldHint: true
    • destructiveHint: false
    • title: Comment on a hub strategy
  • fork_strategyCopies a published Hub strategy, applies `changes` (nested fields merged, e.g.No findings

    Why it is in this group

    • The name "fork_strategy" says "fork": a word for a change.
    Description, as the server wrote it
    Copies a published Hub strategy, applies `changes` (nested fields merged, e.g. {"signal": {"lookback": 126}}), re-runs it on the server and publishes the fork linked to its parent. Costs one backtest.

    Annotations the server declares

    • readOnlyHint: false
    • openWorldHint: true
    • destructiveHint: false
    • title: Fork strategy
  • register_strategyRegister a new strategy signal.No findings

    Why it is in this group

    • Nothing in its name or description says what it does, so it is counted as a write.
    Description, as the server wrote it
    Register a new strategy signal. The strategy is scored ONLY on data after registration, the record can never be edited or deleted, ranking starts at 63 trading sessions, and FinzData never trades on submitted signals.

    Annotations the server declares

    • readOnlyHint: false
    • openWorldHint: true
    • idempotentHint: false
    • destructiveHint: false
    • title: Register Strategy
  • run_backtestRuns a deterministic backtest from a JSON spec (universe, start, end, signal, rebalance, top_n, costs_bps, side='long'|'long_short', blind=true to hide tickers).1 finding

    Why it is in this group

    • The name "run_backtest" says "run": a word for a change.
    • The server marks it read-only (readOnlyHint: true), but an annotation never lowers a class.

    Findings

    • Warn

      The server marks "run_backtest" read-only (readOnlyHint: true), and its own name, description or input give the class "write".

      Matched text

      annotations: {"readOnlyHint":true,"destructiveHint":false,"openWorldHint":false}; The name "run_backtest" says "run": a word for a change.

      What this check looks for
    Description, as the server wrote it
    Runs a deterministic backtest from a JSON spec (universe, start, end, signal, rebalance, top_n, costs_bps, side='long'|'long_short', blind=true to hide tickers). universe: a list of symbols, or 'top500'|'top1000'|'top3000'|'all' for the liquid US market (each month the N most-traded names priced >= min_price, default $5, by 63-day dollar volume; 'all' = liquid_top names, default 1000, max 3000; delisted names included while they traded; membership is set on each month's last trading day and used from the next). rebalance: D|W|M|Q (or daily/weekly/monthly/quarterly). signal.type: momentum (lookback, skip days), ma_cross, factor, or expr with signal.expr a formula over close prices, e.g. 'rank(ret(252)) - rank(vol(60))' (functions: ret, logret, sma, ema, vol, rsi, high, low, dist_high, lag, rank, zscore, demean, abs, log, sign, clip, min, max, where). Point-in-time fundamentals for US stocks (from 2011) work as expr variables and as signal.type factor fields (set ascending false to buy the highest): earnings_yield, book_to_market, sales_yield, ebitda_ev, dividend_yield, roe, leverage, log_mcap, e.g. 'rank(book_to_market) + rank(ret(252) - ret(21))'; such results carry a 'fundamentals' coverage and survivorship report. Every result includes 'overfitting': trials counted per API key and the deflated Sharpe ratio. Prices are fetched point-in-time with a 400-trading-day lookback buffer and clipped to as_of, so results have no look-ahead. Identical specs on the same snapshot are cached and free. Returns stats, benchmark stats, equity curve, warnings, snapshot id and a disclaimer.

    Annotations the server declares

    • readOnlyHint: true
    • openWorldHint: false
    • destructiveHint: false
    • title: Run backtest
  • star_strategyStars (or with unstar=true removes your star from) a public Hub strategy.No findings

    Why it is in this group

    • The name "star_strategy" says "star": a word for a change.
    Description, as the server wrote it
    Stars (or with unstar=true removes your star from) a public Hub strategy. Stars feed the Trending list; rankings stay on deflated Sharpe and forward record.

    Annotations the server declares

    • readOnlyHint: false
    • openWorldHint: true
    • destructiveHint: false
    • title: Star a hub strategy
  • survivorship_auditRuns your backtest spec twice: once on the point-in-time universe (delisted companies included while they traded, the honest result) and once on only the names still trading today …1 finding

    Why it is in this group

    • The description's first verb is "run": a word for a change.
    • The server marks it read-only (readOnlyHint: true), but an annotation never lowers a class.

    Findings

    • Warn

      The server marks "survivorship_audit" read-only (readOnlyHint: true), and its own name, description or input give the class "write".

      Matched text

      annotations: {"readOnlyHint":true,"destructiveHint":false,"openWorldHint":false}; The description's first verb is "run": a word for a change.

      What this check looks for
    Description, as the server wrote it
    Runs your backtest spec twice: once on the point-in-time universe (delisted companies included while they traded, the honest result) and once on only the names still trading today (what a backtest on a current ticker list does). Returns both stats and the inflation in CAGR and Sharpe that survivorship bias adds. Use universe 'top500'|'top1000'|'top3000' or a symbol list. Costs one backtest.

    Annotations the server declares

    • readOnlyHint: true
    • openWorldHint: false
    • destructiveHint: false
    • title: Survivorship-bias audit
  • verify_chainAnyone can check no record was edited or back-dated.No findings

    Why it is in this group

    • Nothing in its name or description says what it does, so it is counted as a write.
    • The server marks it read-only (readOnlyHint: true), but an annotation never lowers a class.
    Description, as the server wrote it
    Anyone can check no record was edited or back-dated.

    Annotations the server declares

    • readOnlyHint: true
    • openWorldHint: false
    • destructiveHint: false
    • title: Verify Chain
Only reads 18Claude Code: allow
  • compare_runsReturns a table (run_id, cagr, sharpe, max_drawdown, turnover, final_equity) for previously run backtests in this session.No findings

    Why it is in this group

    • The name "compare_runs" says "compare": a word for reading.
    Description, as the server wrote it
    Returns a table (run_id, cagr, sharpe, max_drawdown, turnover, final_equity) for previously run backtests in this session. Unknown run_id -> not_found.

    Annotations the server declares

    • readOnlyHint: true
    • openWorldHint: false
    • destructiveHint: false
    • title: Compare runs
  • describe_datasetReturns the schema, coverage and field definitions of one dataset.No findings

    Why it is in this group

    • The name "describe_dataset" says "describe": a word for reading.
    Description, as the server wrote it
    Returns the schema, coverage and field definitions of one dataset. Raises not_found for an unknown dataset id.

    Annotations the server declares

    • readOnlyHint: true
    • openWorldHint: false
    • destructiveHint: false
    • title: Describe dataset
  • get_13fReturns 13F holdings matching a query as known on as_of (default today); filings after as_of are hidden.No findings

    Why it is in this group

    • The name "get_13f" says "get": a word for reading.
    Description, as the server wrote it
    Returns 13F holdings matching a query as known on as_of (default today); filings after as_of are hidden.

    Annotations the server declares

    • readOnlyHint: true
    • openWorldHint: false
    • destructiveHint: false
    • title: Get 13F filings
  • get_barsReturns daily OHLCV bars for symbols between start and end, clipped to as_of (default today) so no future data leaks.No findings

    Why it is in this group

    • The name "get_bars" says "get": a word for reading.
    Description, as the server wrote it
    Returns daily OHLCV bars for symbols between start and end, clipped to as_of (default today) so no future data leaks. Max 5000 rows per page; use next_cursor for more.

    Annotations the server declares

    • readOnlyHint: true
    • openWorldHint: false
    • destructiveHint: false
    • title: Get OHLCV bars
  • get_cotReturns CFTC Commitments of Traders rows for a market between start and end, clipped to as_of.No findings

    Why it is in this group

    • The name "get_cot" says "get": a word for reading.
    Description, as the server wrote it
    Returns CFTC Commitments of Traders rows for a market between start and end, clipped to as_of. Max 5000 rows per page.

    Annotations the server declares

    • readOnlyHint: true
    • openWorldHint: false
    • destructiveHint: false
    • title: Get COT
  • get_eventsReturns events of one kind between start and end (YYYY-MM-DD), clipped to as_of.No findings

    Why it is in this group

    • The name "get_events" says "get": a word for reading.
    Description, as the server wrote it
    Returns events of one kind between start and end (YYYY-MM-DD), clipped to as_of. kind='earnings' (company report dates, symbol and timing) or kind='macro' (economic releases such as CPI, payrolls, FOMC). Max 5000 rows per page.

    Annotations the server declares

    • readOnlyHint: true
    • openWorldHint: false
    • destructiveHint: false
    • title: Get events
  • get_fundamentals_pitReturns fundamentals for one symbol as known on as_of (no restatements from the future).No findings

    Why it is in this group

    • The name "get_fundamentals_pit" says "get": a word for reading.
    Description, as the server wrote it
    Returns fundamentals for one symbol as known on as_of (no restatements from the future). as_of defaults to today.

    Annotations the server declares

    • readOnlyHint: true
    • openWorldHint: false
    • destructiveHint: false
    • title: Get fundamentals (point-in-time)
  • get_gexPoint-in-time dealer gamma exposure for US stocks and ETFs, one row per ticker per session, each stamped with knowledge_time (17:00 New York on the session date).No findings

    Why it is in this group

    • The name "get_gex" says "get": a word for reading.
    Description, as the server wrote it
    Point-in-time dealer gamma exposure for US stocks and ETFs, one row per ticker per session, each stamped with knowledge_time (17:00 New York on the session date). Columns: spot, net_gex_bn (dealer net gamma, $bn per 1% move; >0 dealers long gamma, <0 short), call_gex_bn, put_gex_bn, flip (gamma-flip level), call_wall, put_wall, pcr_oi, atm_iv_pct. Give ticker (+ start/end) for a time series, or date alone for every name that session ranked by |net_gex_bn|. Rows after as_of are hidden.

    Annotations the server declares

    • readOnlyHint: true
    • openWorldHint: false
    • destructiveHint: false
    • title: Get point-in-time GEX (dealer gamma)
  • get_macro_vintageReturns a macro series as it was actually published by as_of (vintage data, no revisions from the future).No findings

    Why it is in this group

    • The name "get_macro_vintage" says "get": a word for reading.
    Description, as the server wrote it
    Returns a macro series as it was actually published by as_of (vintage data, no revisions from the future). Optional start.

    Annotations the server declares

    • readOnlyHint: true
    • openWorldHint: false
    • destructiveHint: false
    • title: Get macro vintage
  • get_mcp_serverretrieves a financial MCP server listing with tools, probe history, issues and verified-data status.No findings

    Why it is in this group

    • The name "get_mcp_server" says "get": a word for reading.
    Description, as the server wrote it
    retrieves a financial MCP server listing with tools, probe history, issues and verified-data status.

    Annotations the server declares

    • readOnlyHint: true
    • openWorldHint: false
    • destructiveHint: false
    • title: Get MCP Server
  • get_quant_modelThe FinzData Quantitative Model as known on as_of: macro regime labels (financial conditions direction, financial risk direction, growth level and direction, inflation direction, m…No findings

    Why it is in this group

    • The name "get_quant_model" says "get": a word for reading.
    Description, as the server wrote it
    The FinzData Quantitative Model as known on as_of: macro regime labels (financial conditions direction, financial risk direction, growth level and direction, inflation direction, macro quadrant GOLDILOCKS/REFLATION/STAGFLATION/SLOWDOWN, liquidity and credit), the growth/inflation nowcast, and the daily S&P 500 market stress probability (2-state Markov-switching). Labels are computed from each input as published on that date (no revisions from the future). Use it to answer 'what macro regime are we in', 'are financial conditions tightening', or to condition a backtest on regime.

    Annotations the server declares

    • readOnlyHint: true
    • openWorldHint: false
    • destructiveHint: false
    • title: Get FinzData Quantitative Model readings
  • get_strategyReturns one public Hub strategy: spec, server-computed backtest result, forward-tracking record and fork lineage.No findings

    Why it is in this group

    • The name "get_strategy" says "get": a word for reading.
    Description, as the server wrote it
    Returns one public Hub strategy: spec, server-computed backtest result, forward-tracking record and fork lineage.

    Annotations the server declares

    • readOnlyHint: true
    • openWorldHint: false
    • destructiveHint: false
    • title: Get hub strategy
  • get_universeReturns every US symbol that was trading on as_of, including companies that later delisted (survivorship-free).No findings

    Why it is in this group

    • The name "get_universe" says "get": a word for reading.
    Description, as the server wrote it
    Returns every US symbol that was trading on as_of, including companies that later delisted (survivorship-free). index='top500'|'top1000'|'top3000' instead returns the most-traded names priced at least $5 that day, ranked by 63-day dollar volume (a point-in-time large-cap proxy, not official S&P or Russell membership). Pages of 500; pass offset. as_of defaults to today.

    Annotations the server declares

    • readOnlyHint: true
    • openWorldHint: false
    • destructiveHint: false
    • title: Get universe
  • get_verified_recordRetrieve a verified strategy record by its ID.No findings

    Why it is in this group

    • The name "get_verified_record" says "get": a word for reading.
    Description, as the server wrote it
    Retrieve a verified strategy record by its ID.

    Annotations the server declares

    • readOnlyHint: true
    • openWorldHint: false
    • destructiveHint: false
    • title: Get Verified Record
  • list_strategiesLists public FinzData Hub strategies.No findings

    Why it is in this group

    • The name "list_strategies" says "list": a word for reading.
    Description, as the server wrote it
    Lists public FinzData Hub strategies. sort: robust (deflated Sharpe), forward (forward Sharpe, 63+ days of out-of-sample record), new, forks. Optional family (momentum, expr, ma_cross, factor).

    Annotations the server declares

    • readOnlyHint: true
    • openWorldHint: false
    • destructiveHint: false
    • title: List hub strategies
  • search_datasetsFull-text search over the dataset catalog.No findings

    Why it is in this group

    • The name "search_datasets" says "search": a word for reading.
    Description, as the server wrote it
    Full-text search over the dataset catalog. Returns matching dataset ids and descriptions. Free of look-ahead concerns; no as_of needed.

    Annotations the server declares

    • readOnlyHint: true
    • openWorldHint: false
    • destructiveHint: false
    • title: Search datasets
  • search_mcp_serversfinds financial MCP servers graded nightly by FinzData for health, protocol conformance and prompt-injection risk; results include install URLs.No findings

    Why it is in this group

    • The name "search_mcp_servers" says "search": a word for reading.
    Description, as the server wrote it
    finds financial MCP servers graded nightly by FinzData for health, protocol conformance and prompt-injection risk; results include install URLs.

    Annotations the server declares

    • readOnlyHint: true
    • openWorldHint: false
    • destructiveHint: false
    • title: Search MCP Servers
  • verified_boardGet the leaderboard of verified strategies.No findings

    Why it is in this group

    • The description's first verb is "get": a word for reading.
    Description, as the server wrote it
    Get the leaderboard of verified strategies.

    Annotations the server declares

    • readOnlyHint: true
    • openWorldHint: false
    • destructiveHint: false
    • title: Verified Board

This is not a safety rating, and no finding is not a safety guarantee. The groups and findings come from fixed checks of the tool definitions the server returned on the date shown, not from its code or what it does when called. How the checks work.

Install

Pinned to version 1.0.0. Values in angle brackets are yours to fill in.

claude mcp add --transport http finzdata https://api.finzdata.com/mcp

Run in a terminal.

Claude Code permissions

Allow the reads, ask before a change, deny the deletes. Paste into .claude/settings.json.

.claude/settings.json
{
  "permissions": {
    "allow": [
      "mcp__finzdata__search_datasets",
      "mcp__finzdata__describe_dataset",
      "mcp__finzdata__get_universe",
      "mcp__finzdata__get_bars",
      "mcp__finzdata__get_fundamentals_pit",
      "mcp__finzdata__get_macro_vintage",
      "mcp__finzdata__get_quant_model",
      "mcp__finzdata__get_cot",
      "mcp__finzdata__get_gex",
      "mcp__finzdata__get_13f",
      "mcp__finzdata__get_events",
      "mcp__finzdata__compare_runs",
      "mcp__finzdata__list_strategies",
      "mcp__finzdata__get_strategy",
      "mcp__finzdata__get_verified_record",
      "mcp__finzdata__verified_board",
      "mcp__finzdata__search_mcp_servers",
      "mcp__finzdata__get_mcp_server"
    ],
    "ask": [
      "mcp__finzdata__backtest_export",
      "mcp__finzdata__run_backtest",
      "mcp__finzdata__publish_strategy",
      "mcp__finzdata__fork_strategy",
      "mcp__finzdata__star_strategy",
      "mcp__finzdata__comment_strategy",
      "mcp__finzdata__survivorship_audit",
      "mcp__finzdata__register_strategy",
      "mcp__finzdata__verify_chain",
      "mcp__finzdata__claim_mcp_server"
    ],
    "deny": [
      "mcp__finzdata__retire_strategy"
    ]
  }
}

Tools that only read are allowed, tools that change things ask first, tools that delete or cancel are denied. It assumes the server is installed as finzdata. Review it before you use it.