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Nonprofit lookup and IRS 990 filing data: revenue, assets, and compensation via ProPublica.
Do not connect
The assessed surface is high-risk. Remediate the findings before connecting.
Scanned 26 days ago Due for re-check
A server can change after it's graded. Re-run the automated scan to refresh this report.
This grade is deterministic and reproducible: the same server surface always yields the same grade under a given algorithm version. It is a real automated assessment computed by the MCPGrade engine from what the probe actually observed — not a fabricated or opinion score. It is not a manual human pentest, so it can miss context-specific risks.
Every signal below was measured directly by the automated probe. The grade is derived only from evidence like this — nothing is assumed.
The irs-990 MCP server exposes 3 tools, focused primarily on general-purpose capabilities. Its published description reads: "Nonprofit lookup and IRS 990 filing data: revenue, assets, and compensation via ProPublica". It communicates over Streamable HTTP using the 2025-06-18 protocol revision, and does not require authorization to connect. MCPGrade currently rates irs-990 D — the assessed surface is high-risk and should be remediated before use. Its most notable findings include "Database tool takes a raw, unparameterised query" and "Cross-tool shadowing". This report is a deterministic, reproducible automated assessment: the same observed surface always yields the same grade under a given algorithm version, and it is refreshed as new scans arrive and free to read — but it is not a substitute for a manual human security review. Always re-check irs-990's advertised tools, transport security, and authorization posture before connecting an autonomous agent or sharing sensitive context with it.
Add irs-990 to an MCP client using the endpoint below. Review the grade and findings above before granting an autonomous agent access.
MCP endpoint
https://mcp.olyport.com/irs-990/mcpStreamable HTTP transport. This is the MCP endpoint, not a website — paste it into your MCP client server list rather than a browser.
Captured passively during the read-only scan. Click any value to find servers that match it.
The tools this server advertises via tools/list — names, purposes, and the parameters each accepts, exactly as enumerated read-only.
Search for nonprofit organizations by name or keyword. Searches the ProPublica Nonprofit Explorer database of IRS 990 filers. Returns organization name, EIN, location, revenue, and tax status. Args: q
Get detailed information about a nonprofit organization by EIN. Returns comprehensive data from the organization's IRS 990 filings including revenue, expenses, assets, executive compensation, and fili
Get the filing history for a nonprofit organization. Returns a list of all available IRS 990 filings for the organization, including both filings with parsed data and those without. Useful for trackin
Sorted worst-first. Each finding shows its severity, what it means, its OWASP MCP Top-10 mapping, and a recommended fix — the check id links to the exact methodology row that produced it.
tool: search_nonprofits
A database tool exposes a query/sql parameter that is a free-form string with no allow-list or parameterisation constraint — a raw-string injection surface. A tool exposing structured filters or an `enum` of named queries does not fire.
unconstrained query parameter "query"RecommendationExpose parameterised operations instead of a raw query string; never build queries from unvalidated model output.
tool: get_nonprofit_details
A tool description tries to alter the model’s use of another tool.
ng history. Use search_nonprofits first to find the EIN. Args: ein:RecommendationDescriptions must describe only their own tool.
The server accepts tool enumeration (and likely invocation) with no authentication.
RecommendationRequire OAuth 2.1 authorization for any server exposing non-public tools.
Financial data service providing fundamental information for 30,000+ listed companies across the US, Japan, and Korea, sourced directly from SEC, EDINET, and DART regulatory filings.
Search tours, attraction tickets, and holiday packages across 24 countries.
Agentic visitor analytics with five tools for CRO and session analysis.
52 paid x402 API endpoints for AI agents — crypto, data, DeFi, and market intelligence, settled on Base.
Access Vonage API documentation, code snippets, tutorials, and troubleshooting resources.
VA facility locations, services, wait times, and satisfaction scores.
Active wildfire incidents from the National Interagency Fire Center.
Real-time water levels and streamflow rates from USGS stream gauges.
SNAP participation, food insecurity indicators, and agricultural statistics from USDA.
Job descriptions, skills, education requirements, and wage data from O*NET.
Search biomedical literature, article details, and MeSH terms from PubMed/MEDLINE.