MCP servers for OpenAI Agents SDK

npm package download trends and adoption growth over time. Free key at trendsapi.ai

Detect malicious or vulnerable npm packages: registry search, OSV.dev and GitHub advisory lookups

NPS MCP — US National Park Service (free key, generous limits)

Read NS1 zones, records, monitors, data feeds and usage; create or update one DNS record.

Read only x402 catalogue: payability verdicts, prices, drift, host status, signatures. No wallet.

NTSB Investigations — aviation accident/incident investigations by

LinkedIn outreach in Claude or ChatGPT: campaign stats, replies, leads, drafts. Never sends.

NuGet MCP — .NET package registry

Real-time threat intel for AI agents: 890K+ IOCs incl. prompt-injection & AI-skill threats

Wallet trust scores for AI agents. Stellar, XRPL, EVM 81+ chains. OFAC sanctions. x402 payments.

Checks $TICKER numeric claims in financial writing against SEC EDGAR XBRL data from the latest 10-K.

Is a phone number VoIP or a real carrier line? Line type, score and grade, free, no auth.

nupkg nuspec id shape, body discarded

Read-only Bicycle Guide registry: published guides, homes, taxonomy, capability spine. No auth.

Nusii MCP server for drafting, pricing, and tracking business proposals.

Multitenant Streamable HTTP bridge over Nutanix's official v4 API MCP server (Prism Central).

Pay-per-call USDA nutrition for AI agents (x402 micropayments in USDC on Base).

AI front desk for NuVista Haven vacation rentals: live availability, rates, booking links.

Free SEO checks for any URL, plus the Nuxt SEO module docs.

NWS MCP — US National Weather Service (no auth)

Active weather alerts and warnings from the National Weather Service