# ai.benroberts/b4-index

Independent build-vs-buy index: score software categories BUILD/BUY/BRIDGE/BEWARE.

- **Type:** MCP server
- **Trust:** 60/100 (B), scored on the content rubric
- **Verification:** community-indexed — nobody has claimed this listing
- **Version:** 3.3.0
- **Author:** ai.benroberts
- **License:** Unknown
- **Endpoints:** streamable-http https://b4-index.vercel.app/mcp
- **Source:** https://benroberts.ai/directory
- **Endpoint health:** reachable (last checked 2026-09-27T22:06:51.684Z, 5 samples) — uptime is not a security property and is not part of the trust score
- **Compatible clients:** claude-code, cursor, copilot, chatgpt, gemini (basis: transport)

## Trust

60/100 (B), scored on the content rubric
- Publisher verified: no
- Install scripts: nothing suspicious found
- Prompt-injection scan: clean
- Obfuscation scan: clean
- Evidence age: 26 days

## Security scan

- **Status:** clean
- **Scanned:** 2026-09-08T21:25:45.612Z
- **Version scanned:** live
- **CVEs:** no coverage — this entry has no package coordinates to query OSV against, so "no known CVEs" is NOT asserted for it.

## Tools

5 declared. Observed from a live `tools/list` probe.
- `b4_browse` — Search and filter the B4 Index's 1,600+ independently scored software categories. Browse by keyword, domain, quadrant, or industry. When filtering by industry, 
- `b4_score` — Score a software category using the B4 Index. Provide a known category name to get pre-computed scores, or provide raw dimension scores (1-5 each) for a custom 
- `b4_audit` — Analyze a software stack against the B4 Index. Provide a list of tool/category names, and get per-tool banded verdicts plus a portfolio verdict distribution. Ea
- `b4_compare` — Compare build vs buy for a specific software category. Returns side-by-side analysis with the category's banded verdict, scores, vendor options, AI replacement 
- `b4_recommend` — Get B4 Index recommendations from a natural language description of a software need or business context. Matches the description to relevant categories and retu

## Install

**Verdict: review** — Installable, but 2 things to check first: No CVE coverage: this entry has no npm/PyPI coordinates to query OSV against, so "no known vulnerabilities" is not a claim that can be made about it.
**Cautions** (coverage gaps and advisories — never blocking)
- No CVE coverage: this entry has no npm/PyPI coordinates to query OSV against, so "no known vulnerabilities" is not a claim that can be made about it.
- No publisher has proved control of this listing; it is indexed, not vouched for.
**Config** (claude-code):
```json
"{\n  \"mcpServers\": {\n    \"b4-index\": {\n      \"type\": \"http\",\n      \"url\": \"https://b4-index.vercel.app/mcp\"\n    }\n  }\n}"
```

## Blast radius

Contained to moderate — no credential declaration found, from the publisher, the upstream registry, or the README. Known so far: runs on someone else's infrastructure; read-only tool surface.
- Floor 9, ceiling 27 (tier: unknown)
- `unknown` means the floor and ceiling land in different bands — not measured enough to name one. It does not mean low.
- This is impact, not likelihood. A high radius is not a defect: a filesystem server is supposed to write files. It is never part of the trust score.

## Machine-readable views of this entry

- Signed JSON: https://forgeregistry.com/api/v1/packages/ai.benroberts%2Fb4-index
- Install plan: https://forgeregistry.com/api/v1/packages/ai.benroberts%2Fb4-index/install-plan
- Alternatives: https://forgeregistry.com/api/v1/alternatives/ai.benroberts%2Fb4-index
- HTML page: https://forgeregistry.com/registry/ai.benroberts%2Fb4-index
- MCP: POST https://forgeregistry.com/api/mcp → `forge_get_package` / `forge_install_plan`

## About this document

Generated by Forge (https://forgeregistry.com) — a compact rendering of the same record served, signed, at the JSON URL above. Trust and scan facts are the registry's own measurements; anything Forge did not measure is named as unmeasured rather than omitted.