Track funding rounds, acquisitions, and executive moves across companies and investors.
Access deduplicated, entity-resolved data on company funding events, acquisitions, mergers, and executive appointments. Search and filter by industry, geography, funding stage, and investor type. Build watchlists to monitor companies. Requires DataHyena account and credits.
Try asking Muse: "Show me all AI companies that raised Series A funding in the US in the last month."
Source: Found in the official MCP Registry (com.datahyena/signals) · First listed September 24, 2026
Each bar is one check, every 15 minutes. Green means it answered. Last checked 2 h ago.
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.
musedirectory.ai is not part of Meta. More about how Muse handles your information
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://api.datahyena.com/mcpNot in Muse's Connectors list yet. Muse can still use it: its page gives you a request to paste into Muse.
Signals is a remote MCP server, so any assistant that can add a custom connector by link can use it. Same link, same tools.
In ChatGPT, open Settings, then Connectors (called Apps & Connectors on some accounts).
Under Advanced settings, switch on Developer mode. That is what lets you add a connector by link.
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.
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
In Claude, open Settings, then Connectors.
Choose Add custom connector, give it a name, and paste the link.
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://api.datahyena.com/mcpResponse time at the last check: 626ms. Worked in 99.1% of checks over 30 days.
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.
funding_eventsList funding events ordered by announcement date, newest first. Filter by round, amount range, company HQ country, industry group, or a specific company id. Costs one credit per returned record.acquisitionsList acquisition and merger events ordered by announcement date, newest first. Filter by payment type, deal amount range, merger flag, or a company that is the acquirer or target. Costs one credit per returned record.exec_movesList executive appointment, promotion, departure, and transition events ordered by announcement date, newest first. Filter by company, person, role seniority, move type, or a time window. Costs one credit per returned record.hiring_signalsList hiring signals read from companies' own job boards, newest first: leadership openings, team build-outs, hiring surges and freezes, expansion into new countries and hard-to-fill roles. Each signal carries the roles behind it. Filter by type, function, seniority, company or a companiesSearch and filter company records by keyword, exact domain, HQ country, industry group, NAICS code, employee-count bucket, or founded-year range. Costs one credit per returned record.investorsSearch and filter investor records by keyword, type, HQ country, or exact domain. Costs one credit per returned record.company_timelineReturn one company's timeline: firmographics, investors, and a chronological list of funding rounds, acquisitions, executive moves and hiring signals. Resolve the company by id, domain, name, or LinkedIn URL. Pick event kinds with include (default all). Costs one credit for the ccompany_hiringReturn each company's hiring picture right now: open roles by role family and function, leadership and founding roles, tools its roles name, a hiring stance (building go-to-market, building leadership, scaling engineering, frozen, ...) and its hiring signals from the last 90 dayslist_watchlistsList the workspace's account watchlists with member counts. Free.get_watchlistReturn one watchlist with its resolved company members. Free.create_watchlistCreate a named account watchlist. Free.add_to_watchlistAdd companies (domain, name, LinkedIn URL, or id) to a watchlist. Returns a per-item result of added, already_present, or unresolved. Free.remove_from_watchlistRemove companies from a watchlist. Free.https://api.datahyena.com/mcpNot in Muse's Connectors list yet, but Muse can still use it. Paste this into Muse: "Use Signals to help me. It is a free service with an MCP server at https://api.datahyena.com/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.
At the last check (November 12, 2026, 10:01 UTC) the endpoint was working, answering in 626ms. Over the last 7 days it answered 100% of health checks. It is checked every 15 minutes.
It was screened on September 24, 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.
It exposes 13 tools, including funding_events, acquisitions, exec_moves, hiring_signals. For example, you could ask Muse: "Show me all AI companies that raised Series A funding in the US in the last month."
This listing was added from public sources (Found in the official MCP Registry (com.datahyena/signals)). If you build Signals, claim it to correct the details and get your badge.
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