isMalicious threat intelligence for AI agents
Indicator reputation verdicts, CVE lookups (CVSS, EPSS, KEV) and prompt-injection scans for agents
The current version, v0.2.0, was published to the official MCP registry on 2026-09-04. It is distributed as @ismalicious/mcp-server on npm, filed under Security by this index, and declares 4 environment variables. Removals and unreachable sources are measured across every server this index tracks, contract drift across the servers that answer in consecutive snapshots; the index's current counts put this record in context.
Using isMalicious threat intelligence for AI agents in Claude, Cursor, Gemini CLI, Cline, or Zed?
MCP tool contracts can change remotely with no version bump. The mcpindex gate pins each contract and HOLDs the call when it drifts-before your agent acts. Zero credentials. This is not the package install for this server itself (use Install this server for that).
Rewrites your MCP host config so each server launches behind the gate. Inspect first: curl -fsSL https://mcpindex.ai/install.sh | less
uv tool install mcpindex-gate && mcpindex-config-wireVerdict not yet evaluated for this tool. The semantic screen takes adversarial cases first; coverage rolls out as the corpus expands (15/150 labels to graduation). The deterministic conformance probe is built but has not yet run on the public corpus, so a recorded verdict here is REVIEW or UNVERIFIED, never a clearing ALLOW. Until a verdict is recorded, an agent should treat this tool as not-yet-cleared and fall back to its own checks. Method: the eval, four-state verdict, honest limits.
Own this server? Screen its description →
That verdict was true at screening time (snapshot 2026-09-05).
Contracts can change after screening, with no version bump. The gate pins isMalicious threat intelligence for AI agents’s tool contracts on first sight and holds any silent change before your agent acts - the check that keeps being true on Tuesday.
See your first HOLD in 2 minutes →
Related: how to trust an MCP server · screen before install · silent contract drift
ISMALICIOUS_API_KEYAPI key from https://ismalicious.com/app/account. Optional: without it the server starts in bootstrap mode and offers bootstrap_key.
ISMALICIOUS_API_SECRETAPI secret paired with the key
ISMALICIOUS_API_BASEAPI base URL (defaults to https://ismalicious.com/api)
ISMALICIOUS_TIMEOUT_MSReplaces every tool's timeout, in milliseconds (defaults: gate 15000, check_indicator 25000, CVE 10000)
SOC 2 Type II compliance for trust services criteria (security, availability, processing
Purchaser-gated MCP for Vault, HMRC TRS, 95/5 equity, and Companies House PSC.
Live threat intel for Claude — CVE, KEV predictions, IP lookup, malware hashes. Free, no API key.