Search and compare 7.9M+ verified nonprofits from official registries in 100+ countries.
Connects to official charity registries worldwide. Muse can help you search nonprofits by name, verify charities by registration number, compare transparency and financial metrics between organizations, and find similar charities in the same category and country.
Try asking Muse: "Help me find and compare the top-rated animal welfare nonprofits in the United States."
Source: Found in the official MCP Registry (com.giveradar/charity-registry) · First listed September 24, 2026
Each bar is one check, every 15 minutes. Green means it answered. Last checked 22 min 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://giveradar.com/mcp/Not in Muse's Connectors list yet. Muse can still use it: its page gives you a request to paste into Muse.
GiveRadar Charity Registry 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://giveradar.com/mcp/Response time at the last check: 523ms. Worked in 98.6% 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.
search_charitiesSearch the charity registry by free-text name. Returns up to `limit` matches, each with slug, name, country, city/state, foundation_type, integrity_score, and the canonical page URL. Use this BEFORE resources/read when the user names a charity but you don't know its slug. The matcompare_charitiesSide-by-side comparison of 2-5 charities by slug. Returns their integrity scores, program/admin/fundraising ratios, annual revenue, founding year, foundation type, and a deterministic verdict on which has the strongest transparency signal. Use this when the user wants to choose bfind_similarGiven one charity's slug, return up to `limit` other charities in the same country + category. Useful for 'find more like this' recommendations. Excludes the input charity from the result.verify_charityLook up a charity by its official registry identifier - EIN (US), Charity Commission number (GB), RSIN (NL), AHU/Kemenkumham reg number (ID), or a generic registration_number for other countries. Returns the matched charity or null. Use this when the user provides a registry numbhttps://giveradar.com/mcp/Not in Muse's Connectors list yet, but Muse can still use it. Paste this into Muse: "Use GiveRadar Charity Registry to help me. It is a free service with an MCP server at https://giveradar.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 13, 2026, 16:30 UTC) the endpoint was working, answering in 523ms. 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 4 tools, including search_charities, compare_charities, find_similar, verify_charity. For example, you could ask Muse: "Help me find and compare the top-rated animal welfare nonprofits in the United States."
This listing was added from public sources (Found in the official MCP Registry (com.giveradar/charity-registry)). If you build GiveRadar Charity Registry, claim it to correct the details and get your badge.
Paste this on your site or README. It always shows the latest check.
<a href="https://musedirectory.ai/connector/giveradar-charity-registry"><img src="https://musedirectory.ai/badge/giveradar-charity-registry.svg" alt="GiveRadar Charity Registry on musedirectory.ai" width="236" height="40"></a>