mcp-registry/com.olyport/irs-990 · v1.27.0
As of 2026-10-22 02:45 UTC, the Olyport Irs 990 MCP server is up with a Glimind reliability score of 98/100 (grade A). Over the last 30 days it answered 100% of Glimind's liveness checks. It had 3 outages in 90 days, with a median recovery of 7 minutes.
Nonprofit lookup and IRS 990 filing data: revenue, assets, and compensation via ProPublica
Claude Code
claude mcp add --transport http olyport-irs-990-mcp-server https://mcp.olyport.com/irs-990/mcp
Claude Desktop · Windsurf · Cline (mcpServers JSON)
{
"mcpServers": {
"olyport-irs-990-mcp-server": {
"type": "http",
"url": "https://mcp.olyport.com/irs-990/mcp"
}
}
}
Third-party server, listed as discovered. Review its source before installing.
7 parameter(s) across 3 tool(s) have no description.
Add a "description" to each parameter with its format and an example ("ISO 8601 date, e.g. 2026-10-17"). This is the commonest cause of wrong arguments on the first call. How to fix →
3 of 3 tool(s) carry no readOnlyHint/destructiveHint annotations.
Annotate read-only tools with {"readOnlyHint": true}. Agents and gateways can then run them without a confirmation prompt, and route around destructive ones. How to fix →
Paste-ready definitions with the problems above fixed. Changes marked verify need a human look. 3 tool(s) still need parameter descriptions written by someone who knows the API. All of them as JSON: /v1/readiness/mcp-registry%2Fcom.olyport%2Firs-990/fixes
{
"name": "get_nonprofit_details",
"description": "Get detailed information about a nonprofit organization by EIN.\n\n Returns comprehensive data from the organization's IRS 990 filings\n including revenue, expenses, assets, executive compensation, and\n filing history. Use search_nonprofits first to find the EIN.\n\n Args:\n ein: Employer Identification Number (e.g. '13-1837418' or '131837418').\n ",
"inputSchema": {
"type": "object",
"title": "get_nonprofit_detailsArguments",
"required": [
"ein"
],
"properties": {
"ein": {
"type": "string",
"title": "Ein"
}
}
},
"annotations": {
"readOnlyHint": true
}
}{
"name": "get_nonprofit_filings",
"description": "Get the filing history for a nonprofit organization.\n\n Returns a list of all available IRS 990 filings for the organization,\n including both filings with parsed data and those without. Useful for\n tracking financial trends over time.\n\n Args:\n ein: Employer Identification Number (e.g. '13-1837418' or '131837418').\n ",
"inputSchema": {
"type": "object",
"title": "get_nonprofit_filingsArguments",
"required": [
"ein"
],
"properties": {
"ein": {
"type": "string",
"title": "Ein"
}
}
},
"annotations": {
"readOnlyHint": true
}
}{
"name": "search_nonprofits",
"description": "Search for nonprofit organizations by name or keyword.\n\n Searches the ProPublica Nonprofit Explorer database of IRS 990 filers.\n Returns organization name, EIN, location, revenue, and tax status.\n\n Args:\n query: Search keywords (e.g. 'food bank', 'habitat for humanity').\n state: Two-letter state abbreviation to filter by (e.g. 'CA', 'TX').\n ntee_code: NTEE major category code (1-10). 1=Arts, 2=Education,\n 3=Environment, 4=Health, 5=Human Services, 6=Inter",
"inputSchema": {
"type": "object",
"title": "search_nonprofitsArguments",
"required": [
"query"
],
"properties": {
"page": {
"type": "integer",
"title": "Page",
"default": 0
},
"query": {
"type": "string",
"title": "Query"
},
"state": {
"anyOf": [
{
"type": "string"
},
{
"type": "null"
}
],
"title": "State",
"default": null
},
"c_code": {
"anyOf": [
{
"type": "integer"
},
{
"type": "null"
}
],
"title": "C Code",
"default": null
},
"ntee_code": {
"anyOf": [
{
"type": "integer"
},
{
"type": "null"
}
],
"title": "Ntee Code",
"default": null
}
}
},
"annotations": {
"readOnlyHint": true
}
}Get an email or webhook when this server's readiness drops by 10+ points, tool-poisoning text appears, or a tool breaks:
curl -X POST https://glimind.com/v1/subscriptions -H 'content-type: application/json' -d '{"tools":["mcp-registry/com.olyport/irs-990"],"email":"[email protected]"}'Agents: watch_tool({"toolId": "mcp-registry/com.olyport/irs-990"}) over MCP.
search_nonprofits ~284 tokensget_nonprofit_details ~158 tokensget_nonprofit_filings ~150 tokensStatic checks of the advertised tools/list (schema, descriptions, annotations, tool-poisoning patterns, names, size) plus observed protocol, uptime, latency and contract changes. Read-only: no tool is ever called. Weights: schema 15, docs 20, safety 15, efficiency 15, compatibility 15, protocol 5, reliability 10, stability 5. Token counts are estimates (~3.6 characters per token).
Operator? Fix these, then re-check live. Embed the readiness badge:
[](https://glimind.com/server/mcp-registry%2Fcom.olyport%2Firs-990?ref=badge)
<a href="https://glimind.com/server/mcp-registry%2Fcom.olyport%2Firs-990?ref=badge"><img src="https://glimind.com/v1/readiness/badge/mcp-registry%2Fcom.olyport%2Firs-990.svg" alt="MCP agent-readiness"></a>
.. image:: https://glimind.com/v1/readiness/badge/mcp-registry%2Fcom.olyport%2Firs-990.svg :target: https://glimind.com/server/mcp-registry%2Fcom.olyport%2Firs-990?ref=badge :alt: MCP agent-readiness
Glimind records every version of this server's tool definitions in a signed, append-only transparency log. Current manifest sha256:654e877f5e9f1cc7…, first seen 2026-10-17, included at leaf 4848 of 43,077. Version history · verify what your client received.
Compare: most reliable data servers
Glimind tells agents whether a server is up right now and how to call it, then fails over to a live alternative when it isn't.
Claude Code
claude mcp add --transport http glimind https://glimind.com/mcp
Claude Desktop · Windsurf · Cline (mcpServers JSON)
{
"mcpServers": {
"glimind": {
"type": "http",
"url": "https://glimind.com/mcp"
}
}
}
As of 2026-10-22 02:45 UTC, the Olyport Irs 990 MCP server is up with a Glimind reliability score of 98/100 (grade A). Over the last 30 days it answered 100% of Glimind's liveness checks. It had 3 outages in 90 days, with a median recovery of 7 minutes.
Olyport Irs 990 MCP server advertises 3 tools, including get_nonprofit_details, get_nonprofit_filings, search_nonprofits.
Point your MCP client at this streamable-http endpoint: https://mcp.olyport.com/irs-990/mcp
Glimind scanned all 3 tool definitions for tool-poisoning patterns — hidden or invisible characters, instructions that override the model, concealment from the user, requests to read credential or MCP config files, conversation exfiltration and cross-tool shadowing — and found none. This checks what the server tells the model, not what its code does; review the source before granting access to sensitive data.
Status page: 90-day uptime, every outage and how long it lasted.
Claim this listing to get the Verified operator marker, a remediation checklist and owner analytics, or embed the live badge from any of the tool pages above. Maintainers: alerts, deploy attestation and monthly reports.
Status is an automated estimate from Glimind's liveness checks (handshake and tool listing only; no tool is ever called) and may lag or differ from your network. Glimind is not affiliated with this server or its operator. Operator? Request a correction or opt out at https://glimind.com/opt-out.