GrantCue
REMOTE · WWW.GRANTCUE.COM
Search public US grants and foundation profiles from IRS filings. Read-only, no sign-in.
Available components
Last scanned (10 hours ago)
Scores higher than 66% of remote servers
Reachable. Last reached 5 Nov 2026.
Category Finance and Payments
How this component scores in each security and reliability category. Every signal is checked automatically against the live server, and we only credit what we can confirm. How we score → Why this is hard to score →
Endpoint Security80
- The endpoint's TLS certificate is valid, in date, and uses a strong key. View diagnostics → Pass
- No authorisation is required to call this server. Every tool declares its destructiveHint and none is destructive, so open access doesn't expose one. See how to fix → View diagnostics → Partial
- HTTPS is enforced; there's no plaintext access path. View diagnostics → Pass
- The HSTS (Strict-Transport-Security) header is present. View diagnostics → Pass
- DNSSEC check failed: this domain isn't protected by DNSSEC. See how to fix → View diagnostics → Fail
Transport & Reachability100
- Verified streamable-http transport via a live MCP handshake. View diagnostics → Pass
Schema Quality & AI Usability66
- AI-judged instruction clarity (good).Pass
- Context-footprint check failed: tool/resource definitions use about 840 tokens (~210/item across 4 items; 4 tools + 0 resources), over budget; trim descriptions and params. See how to fix → Fail
- Usage-examples check failed: none of the tools include examples. See how to fix → Fail
Stability & Change Management27
- Stability observed for 8 of 30 days with no destabilising changes; credit accrues until the full window elapses.Partial
Tool Coverage100
- 100% of tools have a non-trivial description (not blank, and not just the tool's name).Pass
- 100% of tool parameters carry a description.Pass
Tool Safety100
- No prompt-injection markers were found in the server instructions, tool names or descriptions we captured.Pass
- We read all 4 captured tool definition(s), and no name or description among them implies an irreversible operation.Pass
- An AI judge read all 5 captured unit(s) of tool text and found none that tries to manipulate the model reading it.Pass
Capabilities100
- Implements a supported MCP spec version (2025-11-25); the latest is 2026-07-28.Pass
Every change we have recorded for this component, newest first. Security-relevant changes are always shown. ▲ marks a change for the better, ▼ a change for the worse; unmarked changes are neutral.
- 5 Nov 26 +1
No change was recorded against any check on this day. Stability & Change Management went from 23 to 27. That category is still filling its 30-day observation window: 7 days of observed history at the previous scan, 8 at this one. The score rises as the window fills, whether or not the server changes.
- 3 Nov 26 +1
No change was recorded against any check on this day. Stability & Change Management went from 17 to 20. That category is still filling its 30-day observation window: 5 days of observed history at the previous scan, 6 at this one. The score rises as the window fills, whether or not the server changes.
- 1 Nov 26 +1
No change was recorded against any check on this day. Stability & Change Management went from 10 to 13. That category is still filling its 30-day observation window: 3 days of observed history at the previous scan, 4 at this one. The score rises as the window fills, whether or not the server changes.
- 30 Oct 26 +1
No change was recorded against any check on this day. Stability & Change Management went from 3 to 7. That category is still filling its 30-day observation window: 1 days of observed history at the previous scan, 2 at this one. The score rises as the window fills, whether or not the server changes.
- 29 Oct 26 0
- Stability: unverified → 0.03 ▲ functional
- 28 Oct 26 72
First indexed and scored.
Diagnostic detail from the automated scan of this channel: what the scanner observed at each step, so you can see exactly where a check passed or failed. It is informational only and never changes the trust score.
Captured 5 Nov 2026 · Probed https://www.grantcue.com/api/v1/mcp
TLS valid
Negotiated TLS 1.3 with TLS_AES_128_GCM_SHA256 .
| Subject | Issuer | Valid from | Valid until | Key | Signature | Serial |
|---|---|---|---|---|---|---|
| CN=www.grantcue.com | CN=YR2,O=Let's Encrypt,C=US | 13 Sept 2026 | 12 Dec 2026 | RSA 2048 | SHA256-RSA | 5ca0e607d7b691e1830f79ad8512748a11b |
| SANs: www.grantcue.com | ||||||
| CN=YR2,O=Let's Encrypt,C=US (CA) | CN=Root YR,O=ISRG,C=US | 3 Sept 2025 | 2 Sept 2028 | RSA 2048 | SHA256-RSA | 4ebd24947e24d394802d84a52fd5b319 |
| CN=Root YR,O=ISRG,C=US (CA) | CN=ISRG Root X1,O=Internet Security Research Group,C=US | 13 May 2026 | 2 Sept 2032 | RSA 4096 | SHA256-RSA | f24b6d17f9d9ad7cb1c9fea78782699f |
Background: What to check on a remote MCP endpoint →
DNSSEC insecure
Validation of www.grantcue.com. — Not signed
| Zone | DS | Keys | Algorithms | Outcome |
|---|---|---|---|---|
| . | trust_anchor | 20326, 38696 | 8, 8 | Verified |
| com. | present | 19718 | 13 | Verified |
| grantcue.com. | absent | Unsigned (proven) parent-signed NSEC/NSEC3 proves an unsigned delegation |
Authentication No authorisation required
The endpoint answered without asking for a token. Anyone who knows the URL can reach it.
| Result | No authorisation required |
|---|---|
| HTTP status | 200 |
| Header | Value |
|---|---|
| strict-transport-security | max-age=31536000; includeSubDomains |
| content-security-policy | default-src 'none'; frame-ancestors 'none'; base-uri 'none'; form-action 'none' |
| x-content-type-options | nosniff |
| x-frame-options | DENY |
| referrer-policy | strict-origin-when-cross-origin |
| permissions-policy | camera=(), microphone=(), geolocation=(), payment=() |
Background: How OAuth 2.1 works in the 2026 MCP spec →
Transports 2 probes
| Transport | URL | Outcome | Status | Location |
|---|---|---|---|---|
| streamable-http | https://www.grantcue.com/api/v1/mcp | Verified | 200 | |
| http (plaintext) | http://www.grantcue.com/api/v1/mcp | HTTPS enforced | 308 | https://www.grantcue.com/api/v1/mcp |
The tools this component advertises to a client, with an estimated token cost for each. Expand a tool to see its parameters and schema. The per-tool counts are indicative and are not scored directly; the schema's total context footprint is one signal in Schema Quality & AI Usability. A tool's description is untrusted text the model reads on every call, which is what makes this list a security surface and not just an inventory: how tool poisoning works →
get_funder Get a foundation ~164
A 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 for a 990-PF filer how to apply. For a Form 990 funder: its kind, the latest tax year, totals and the top 10 recipients (yearly totals); Form 990 does not say whether it accepts applications. Only foundations with a public profile, and funders with a Schedule I return, are found. It never returns the full list of reported grants.
| Name | Type | Req | Description |
|---|---|---|---|
| ein | string | yes | The foundation’s EIN, with or without the dash. |
No output schema declared.
No examples provided.
get_grant Get a grant ~58
One 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.
| Name | Type | Req | Description |
|---|---|---|---|
| grant_id | string | yes | The grant id from search_grants. |
No output schema declared.
No examples provided.
search_funders Search foundations ~209
Search 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 those that publish how to apply. Form 990 grantmakers are found by name, state or EIN, after the 990-PF matches, each marked source_form "990". Returns 10 per page.
| Name | Type | Req | Description |
|---|---|---|---|
| accepting_applications | boolean | – | true: only foundations whose latest filing publishes how to apply. |
| page | integer | – | Page of 10 results. Only the first 10 pages can be reached. |
| query | string | – | A foundation name, the city or state it is based in, or its 9-digit EIN. |
| recipient_state | string | – | Foundations whose giving goes mostly to this state (two-letter code), like the state lists on the foundations pages. |
No output schema declared.
No examples provided.
search_grants Search grants ~321
Search 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. Grant text is provided by the funders.
| Name | Type | Req | Description |
|---|---|---|---|
| agency | string | – | Funding agency or organization (partial match). |
| applicant_type | string | – | Who is applying. Grants that exclude this kind of applicant are left out. |
| category | string | – | Funding category. |
| due_in_days | integer | – | Only grants closing within this many days. |
| location | string | – | A place page slug such as "allegheny-county-pa" to limit results to grants open there. |
| max_funding | number | – | Largest award or total, in US dollars. |
| min_funding | number | – | Smallest award or total, in US dollars. |
| offset | integer | – | Skip this many results, to page through. Only the first 100 results of a search can be reached. |
| page_size | integer | – | Results per page. Default 10. |
| query | string | – | Keywords, an opportunity number, or a quoted phrase. |
| sort | string | – | relevance = best match for the query, due_soon = closing soonest, newest = most recently opened. Default: relevance when there is a query, otherwise due_soon. |
| status | array | – | posted = open for applications now, forecasted = announced but not yet open. Default: both. |
No output schema declared.
No examples provided.
How do I install the GrantCue MCP server?
GrantCue is a hosted endpoint at https://www.grantcue.com/api/v1/mcp, so there is nothing to install locally. Ready-made configuration for Claude, Cursor, VS Code, Codex and 5 more is on this page, copied from each client's own documentation.
remote · www.grantcue.com
claude mcp add --transport http com-grantcue-grantcue 'https://www.grantcue.com/api/v1/mcp'
What is the GrantCue MCP server?
GrantCue is an MCP server listed in the public MCP registry as com.grantcue/grantcue. Search public US grants and foundation profiles from IRS filings. Read-only, no sign-in. This page covers its hosted endpoint (https://www.grantcue.com/api/v1/mcp).
Is the GrantCue MCP server safe to use?
GrantCue scores 76 out of 100 on VerifyMCP. That is a record of what we were able to check automatically, not an endorsement. The category breakdown on this page shows every signal behind the number, including the ones we could not confirm.
What tools does the GrantCue MCP server expose?
GrantCue exposes 4 tools: search_grants, get_grant, search_funders, get_funder. Their descriptions and schemas cost roughly 752 tokens of context every time the server is loaded.
Does the GrantCue MCP server require authentication?
No. We connected to GrantCue without credentials and it answered, so anything it exposes is reachable by anyone who knows the address.
Is the GrantCue MCP server still maintained?
GrantCue is still listed as active in the MCP registry. We last reached this channel on 5 November 2026. Those dates come from our own scans of the registry and the channel itself, not from anything the publisher announced.