mkts Market Data
Real-time and historical quotes for stocks, ETFs, crypto, commodities, and forex with fundamentals and SEC filings.
Connects to mkts market data service for current and historical pricing across multiple asset classes. Muse can retrieve quotes, compare assets, pull SEC filings, access financial statements, and backtest portfolio performance using point-in-time data.
Try asking Muse: "Show me how my stock portfolio would have performed over the last 90 days."
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Source: Found in the official MCP Registry (io.mkts/market-data) · First listed October 31, 2026
Last 24 hours
Each bar is one check, every 15 minutes. Green means it answered. Last checked 2 h ago.
Is it safe to connect?
What Muse can see: It does not ask you to sign in, so it cannot see your accounts. It only sees what Muse sends it from your request.
Before it acts: Read what Muse plans to do before you approve it, and remove the app from Muse when you stop using it.
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How to add it to Muse
Not in Muse's Connectors list yet, but Muse can still use it. Copy the request below and paste it into Muse. Muse asks before it shares anything with the app's site. Meta does not review apps used this way, so only use ones you trust. We tested this in the Muse app on September 24, 2026: Muse used an app's link directly this way and returned a live answer.
https://mkts.io/api/mcpNot in Muse's Connectors list yet. Muse can still use it: its page gives you a request to paste into Muse.
Also use it in ChatGPT or Claude
mkts Market Data is a remote MCP server, so any assistant that can add a custom connector by link can use it. Same link, same tools.
Add it to ChatGPT
- 1
Open ChatGPT settings
In ChatGPT, open Settings, then Connectors (called Apps & Connectors on some accounts).
- 2
Turn on developer mode
Under Advanced settings, switch on Developer mode. That is what lets you add a connector by link.
- 3
Create the connector
Choose Create, give it a name, paste the link as the MCP server URL, and save. If it needs a sign-in, ChatGPT asks for it here.
- 4
Use it in a chat
Start a chat, open the tools menu, pick the connector, and ask. ChatGPT asks before it runs a tool the first time.
Custom connectors need a paid ChatGPT plan, and on Team, Enterprise and Edu accounts only an admin can add them. Our "Working" label means the server answered us; it cannot tell whether your plan lets you add it. All connectors that work in ChatGPT
Add it to Claude
- 1
Open Claude settings
In Claude, open Settings, then Connectors.
- 2
Add a custom connector
Choose Add custom connector, give it a name, and paste the link.
- 3
Connect and use it
If it needs a sign-in, Claude sends you to it. Then turn the connector on in a chat from the tools menu and ask.
Custom connectors are available on paid Claude plans; on Team and Enterprise accounts an admin may need to add them. Our "Working" label means the server answered us; it cannot tell whether your plan lets you add it. All connectors that work in Claude
https://mkts.io/api/mcpWhat people ask Muse to do
Technical details: safety screening, tools, response time and recent checks
Response time at the last check: 457ms. Worked in n/a of checks over 30 days.
Screening · October 31, 2026
Screened, no issues found
Screening looks for known threats and hidden instructions at the time of the check, and runs again weekly and whenever the tool list changes. It cannot see the server's code, so only connect what you need and review what Muse asks to do. How screening works.
Tools · 15
compare_assetsCompare 2 to 10 market symbols using the same normalized mkts snapshot. Returns requested and resolved symbols plus normalized asset records with provenance metadata.get_archive_seriesGet what mkts recorded for up to 100 symbols on every day in a date range, from the immutable point-in-time archive. This is the shape a portfolio backtest actually needs — N symbols by M days in one call, where get_asset_series would take one call per holding and get_assets_as_oget_asset_intradayGet every price observation mkts made of one symbol inside a time window, rather than just the daily close. Use for intraday movement, timing questions, or checking what a price was doing during a session; use get_asset_series instead for daily closes over months. Cadence is not get_asset_profileResolve a symbol from the mkts multi-asset snapshot. Returns identity, asset type, price, change, market cap, volume, and snapshot timestamp when available.get_asset_quoteGet a current quote for a stock, ETF, cryptocurrency, commodity, or forex pair. Returns price fields, market state when available, an observation timestamp, and upstream source.get_asset_seriesGet what mkts recorded for one symbol on every day in a date range, from the immutable point-in-time archive. Use this for backtesting rather than calling get_assets_as_of once per day — a 90-day study is one call here and 90 there. Distinct from get_price_history, which fetches get_assets_as_ofGet what mkts recorded about one or more symbols on a specific past date, from the immutable point-in-time archive. Pass a single symbol or up to 100. Use for backtesting, reconstructing a past decision, or checking whether a figure was later revised — not for current prices, whiget_assets_bulkGet current data for an explicit list of up to 100 symbols in a single call. Use this instead of calling get_asset_quote repeatedly — a watchlist fetched one symbol at a time exhausts the rate limit for no benefit. Returns the resolved assets plus unresolvedSymbols naming anythinget_filingsGet recent filing records for a US stock or ETF. Returns filing date, type, title, and EDGAR link; optionally filter by filing type.get_fundamentalsGet annual or quarterly financial-statement time series for a stock or ETF. Modules can return all statements or a smaller financials, balance-sheet, or cash-flow payload.get_macro_snapshotGet the current mkts macro dashboard, including major equity proxies, crypto, commodities, the US dollar, volatility, and the US 10-year yield.get_market_snapshotGet the current global cryptocurrency market totals, volume, dominance, active asset counts, and the underlying snapshot timestamp.get_newsGet recent market news from the configured source feeds. Filter by an asset symbol or by markets, crypto, commodities, or forex category. Returns source and publication links.get_price_historyGet bounded daily price history for a symbol. Stocks and ETFs include OHLCV when available; cryptocurrency history may contain close and volume only.screen_assetsScreen the normalized mkts asset snapshot with bounded price, return, volume, market-cap, type, and sector filters. Returns at most 25 records.Link
https://mkts.io/api/mcpQuestions about mkts Market Data in Muse
How do I connect mkts Market Data to Muse?
Not in Muse's Connectors list yet, but Muse can still use it. Paste this into Muse: "Use mkts Market Data to help me. It is a free service with an MCP server at https://mkts.io/api/mcp. It does not need an API key. Ask me before you share anything with it." Muse asks before it shares anything with the app's site. Meta does not review apps used this way, so only use ones you trust. We tested this in the Muse app on September 24, 2026: Muse used an app's link directly this way and returned a live answer.
Is mkts Market Data working right now?
At the last check (October 31, 2026, 01:06 UTC) the endpoint was working, answering in 457ms. It is checked every 15 minutes.
Is mkts Market Data safe to connect to Muse?
It was screened on October 31, 2026 with the result "screened, no issues found". Screening checks the domain against threat feeds and reads the tools for hidden instructions and requests for passwords or card numbers. It cannot see the server's code, so grant only the access you need.
What can mkts Market Data do in Muse?
It exposes 15 tools, including compare_assets, get_archive_series, get_asset_intraday, get_asset_profile. For example, you could ask Muse: "Show me how my stock portfolio would have performed over the last 90 days."
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