# DiffBeam Gaussian Beam Optics MCP server

Agent View of the PolicyLayer registry record for DiffBeam Gaussian Beam Optics: identity, probed posture, risk grade, and all 4 tools classified. HTML page: https://policylayer.com/tools/com-gaussian-beam-diffbeam

## Facts

- Server id: `https://catalog-api.gaussian-beam.com/mcp/`
- Homepage: https://github.com/RiaRosenauer/diffbeam-mcp
- Registry record: grade C, identity unverified
- Lifecycle: active
- Auth posture: open
- Rate-limited: no
- Tools: 4 (4 with introspected schema)
- Tool categories present: Read
- Context-window cost: 1025 tokens per request — https://policylayer.com/token-cost/com-gaussian-beam-diffbeam
- Tags: com gaussian beam diffbeam
- Record last modified: 2026-08-26T11:05:04.569Z

## Tools (4)

| Tool | Category | Risk | Record |
| --- | --- | --- | --- |
| `get_diffbeam_state` | Read | Low | https://policylayer.com/tools/com-gaussian-beam-diffbeam/get-diffbeam-state.md |
| `search_fiber_collimators` | Read | Low | https://policylayer.com/tools/com-gaussian-beam-diffbeam/search-fiber-collimators.md |
| `search_fibers` | Read | Low | https://policylayer.com/tools/com-gaussian-beam-diffbeam/search-fibers.md |
| `search_lenses` | Read | Low | https://policylayer.com/tools/com-gaussian-beam-diffbeam/search-lenses.md |

## Tool descriptions

- `get_diffbeam_state` — Check whether DiffBeam protocol, tools, or catalog data changed. If changed is true, refresh tool schemas and repeat any catalog searches before citing part numbers. This tool is read-only, fast, and stateless.
- `search_fiber_collimators` — Search public fiber-collimator catalog rows. Use when the user asks for real collimator/coupler part numbers, links, EFL, coating range, connector type, clear aperture, or vendor data. Do not use as a generic Gaussian-beam solver; it onl…
- `search_fibers` — Search public fiber catalog rows. Use when the user asks for real fiber part numbers, links, mode-field diameter, numerical aperture, wavelength compatibility, or attenuation. Returns only catalog data and public URLs; it never reads or …
- `search_lenses` — Search public lens catalog rows. Use when the user asks for real lens part numbers, links, focal lengths, diameters, coatings, or purchasable candidates for a design. Return matches as evidence; never claim a part exists unless it appear…

## For agents

This record is a snapshot. Live verdicts and the full registry:

- Check every server in your MCP config at once: `npx -y policylayer stack`
- Vet a server before you add it: install the mcp-precheck skill — `npx skills add https://policylayer.com` (skill text: https://policylayer.com/skill.md)
- Query the registry over MCP: endpoint `https://api.policylayer.com/mcp` — tools `check_mcp_server`, `check_mcp_stack`, `check_tool`, `search_registry`, `get_change_events`

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Source: the PolicyLayer MCP registry — one continuously verified record per MCP server. Full record: https://policylayer.com/registry?q=com-gaussian-beam-diffbeam · API: https://policylayer.com/registry/api · Recommended policies for every tool: https://policylayer.com/policies/com-gaussian-beam-diffbeam