io.github.basitalisandhu/mcp-security-headers
Security Headers
Is the Security Headers MCP server down? No. It answered initialize and tools/list in the probe of 2026-10-29.
Fetch a URL's response headers and grade CSP, HSTS, X-Frame-Options and related security headers.
alive probed 2026-11-15 · unchanged since 2026-10-29
- Run it
- docker run -i --rm ghcr.io/basitalisandhu/mcp-security-headers:0.3.0 (stdio, probed in a container with the network off)
- Host
- ghcr.io
- Reports itself as
- security-headers 0.3.0
- Capabilities
- tools
- Instructions
- 692 characters
- Of a 1M window
- 0.1 % of a 1M context window
- Count
- 1.0k tokens in Claude Opus 5.5, exact, measured 2026-10-29. With the Claude Code prefix mcp__…__ on each tool name: 1.1k. The o200k_base estimate is 592. Counted again when the tool definitions change. Method.
- Repository
- https://github.com/basitalisandhu/dev-mcp-servers
- Website
- https://basitalisandhu.github.io/dev-mcp-servers/
- Registry
- active, updated 2026-10-28 · registry entry
Most expensive tools
The Claude column scales the o200k estimate of each tool by this server's ratio of exact to estimate, 1.76×.
| Tool | ≈ Claude tokens | o200k estimate | Share of this server |
|---|---|---|---|
| check_url_headers | 413 | 235 | 40 % |
| grade_headers | 336 | 191 | 32 % |
| explain_header | 292 | 166 | 28 % |
Compare this server with others.
More servers
Other registry entries on ghcr.io, the ones next to this name; all of them.
- llms.txt io.github.basitalisandhu/mcp-llms-txt · alive
- OpenAPI Lint io.github.basitalisandhu/mcp-openapi-lint · alive
- OSV Advisories io.github.basitalisandhu/mcp-osv-advisories · alive
- Regex Lab io.github.basitalisandhu/mcp-regex-lab · alive
- io.github.basphere/ratatosk-mcp · alive
- io.github.beepboop2025/lucent · alive
- io.github.beepboop2025/umbra-proof · alive
- jevjam io.github.beremaran/jevjam · not probed
Servers that mention security.
- Arketo ai.arketo/arketo · needs auth
- Helixar Security ai.helixar/mcp · needs auth
- ai.kernora/agent-sec · alive
- IntoDNS.ai DNS & Email Security Scanner ai.intodns/scanner · alive
- SOAR Record Gateway ai.lateos/soar-record-gateway · needs auth
- Occludra — MCP Gateway (AI Security Gateway) ai.occludra/mcp-gateway · server error
- RFP.ai ai.rfp/rfp-ai · server error
- ai.sealgate/gateway · needs auth
Badge for the README
The result of the latest probe, the tool count and the token cost. The feed has an entry for every probe that changed them.
A mail when this server changes
Stops answering, comes back, tool set or cost changes. One confirmation mail first, a stop link in every mail.
For the publisher
- The server answers initialize and tools/list. Nothing to fix.