GrantCue
Search public US grants and foundation profiles to find funding opportunities.
Connects to GrantCue's catalog of federal, state, local and foundation grants. Muse can search grants by keywords, location, funding amount and deadline, retrieve full grant details, and look up foundation profiles and giving history from IRS Form 990 filings.
Try asking Muse: "Find grants under $50,000 for nonprofits in my state closing within 30 days."
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Source: Found in the official MCP Registry (com.grantcue/grantcue) · First listed October 30, 2026
Last 24 hours
Each bar is one check, every 15 minutes. Green means it answered. Last checked 59 min 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://www.grantcue.com/api/v1/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
GrantCue 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://www.grantcue.com/api/v1/mcpWhat people ask Muse to do
Technical details: safety screening, tools, response time and recent checks
Response time at the last check: 321ms. Worked in n/a of checks over 30 days.
Screening · October 30, 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 · 4
search_grantsSearch the public GrantCue grant catalog (federal, state, local and foundation opportunities) with the same filters as the Discover page. Returns a short page of matches, at most 25, and can reach the first 100 results of a search; use get_grant for one grant in full. Grant text get_grantOne public catalog grant in full: dates, amounts, eligibility, and links to the funder’s own pages. A grant that is not publicly listed is not found.search_fundersSearch the foundations that have a public GrantCue profile (built from the latest Form 990-PF, or Form 990 Schedule I for community foundations and other grantmaking charities), largest givers first. Search by name, city, state or EIN, by the state they mainly give to, or for thoget_funderA foundation’s public GrantCue profile, from the latest Form 990-PF, or Form 990 Schedule I for community foundations and other grantmaking charities: giving totals, typical and median grant, giving by year, where it gives, the 25 largest grants its latest filings report, and forLink
https://www.grantcue.com/api/v1/mcpQuestions about GrantCue in Muse
How do I connect GrantCue to Muse?
Not in Muse's Connectors list yet, but Muse can still use it. Paste this into Muse: "Use GrantCue to help me. It is a free service with an MCP server at https://www.grantcue.com/api/v1/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 GrantCue working right now?
At the last check (October 30, 2026, 04:31 UTC) the endpoint was working, answering in 321ms. It is checked every 15 minutes.
Is GrantCue safe to connect to Muse?
It was screened on October 30, 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 GrantCue do in Muse?
It exposes 4 tools, including search_grants, get_grant, search_funders, get_funder. For example, you could ask Muse: "Find grants under $50,000 for nonprofits in my state closing within 30 days."
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This listing was added from public sources (Found in the official MCP Registry (com.grantcue/grantcue)). If you build GrantCue, claim it to correct the details and get your badge.
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