DataNexus MCP
Provides AI-ready access to US/UK nonprofit data and OSS vulnerability intelligence via MCP, with 10 tools and no API key required.
README
DataNexus MCP
AI-Ready access to US/UK nonprofit data and OSS vulnerability intelligence via the Model Context Protocol.
10 tools. No API key required. Token-efficient AI-Ready Markdown.
Connect (remote — no install)
Add to Claude Desktop or any MCP-compatible client:
{
"mcpServers": {
"datanexus": {
"type": "http",
"url": "https://datanexusmcp.com/mcp"
}
}
}
Or via npx (bridges HTTP → stdio for clients that need it):
npx -y @datanexusmcp/mcp-server
Tools (10 total)
T04 — US/UK Nonprofit Data
| Tool | Description | Source |
|---|---|---|
fetch_nonprofit_by_ein |
IRS 990 data for any US nonprofit by EIN — name, address, NTEE code, revenue, assets | IRS EO BMF + IRS TEOS |
search_nonprofits_by_name |
Search US nonprofits by name with optional state filter — returns up to 25 results | IRS EO BMF |
fetch_charity_uk |
UK registered charity details — registration status, income, expenditure, activities | UK Charity Commission (OGL v3) |
T10 — OSS Vulnerability Intelligence
| Tool | Description | Source |
|---|---|---|
fetch_package_vulnerabilities |
All known CVEs for a package version with CVSS scores and fixed versions | Google OSV.dev + NIST NVD |
fetch_dependency_graph |
Full transitive dependency tree — hard 8 s timeout, never hangs silently | deps.dev (Google) |
fetch_cve_detail |
Full CVE detail by ID — description, CVSS base score, affected products, patch URLs | NIST NVD |
audit_sbom_vulnerabilities |
Audit a CycloneDX or SPDX SBOM — per-component vulnerability count and severity | OSV.dev batch API |
fetch_package_licence |
SPDX licence identifier for any package version — use before adding a commercial dep | deps.dev (Google) |
Shared Infrastructure
| Tool | Description |
|---|---|
report_feedback |
Report an incorrect, incomplete, or stale tool result — always returns {status: 'recorded'} |
report_mcpize_link |
Check subscription status and retrieve upgrade URL if required |
Ecosystems supported (T10)
PyPI · npm · Maven · Go · Cargo · NuGet · RubyGems · Packagist
Response format
Every tool response includes:
| Field | Description |
|---|---|
markdown_output |
AI-Ready Markdown — paste directly into a response |
query_hash |
16-char hex — use as query_hash in report_feedback |
data_as_of |
ISO 8601 UTC timestamp of the data |
ingest_healthy |
true if upstream source was reachable |
cache_hit |
true if served from cache |
sha256_hash |
SHA-256 of the raw upstream payload |
Environment variables
Only needed for self-hosted deployments. The hosted server at
https://datanexusmcp.com/mcp requires no configuration.
| Variable | Default | Description |
|---|---|---|
DATANEXUS_REDIS_URL |
redis://localhost:6379 |
Redis for caching and feedback |
No API keys are required for T04 or T10 — all upstream sources are public.
License
MIT
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