Software Decision Engine

B4 Index · MCP Connector

A live connector that gives Claude the B4 Index — 1,600+ independently scored software categories across 5 dimensions and 19,000+ vendors. Ask Claude whether to build, buy, bridge, or beware on any software decision.

Connector URL

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Add it to Claude (web, desktop, or Cowork)

Open Settings → Connectors (or Customize → Connectors).
Click Add custom connector.
Paste the URL above. Leave authentication empty.
Click Add, then enable it in a chat via the + menu → Connectors.

Works on Free, Pro, Max, Team, and Enterprise plans. (Free is limited to one custom connector.)

What you can ask

"Run our software stack through the B4 Index: Salesforce, Slack, Gong, Workday, Expensify."
"Should we build or buy our email marketing platform?"
"We want to automate expense reports — what does B4 say?"
"Show me every BEWARE-quadrant category in MarTech."

The five tools

Tool	What it does
`b4_browse`	Search / filter categories by keyword, domain, quadrant, or industry.
`b4_recommend`	Plain-English need → matching categories with verdicts.
`b4_compare`	Deep build-vs-buy analysis for one category.
`b4_audit`	Score a whole stack at once → portfolio summary + spend flags.
`b4_score`	Pre-computed scores for a known category, or score custom dimensions.

The four verdicts

BUILD Strategic + AI-feasible. Build it with a small team.

BUY Commodity + low AI leverage. Buy, negotiate, move on.

BRIDGE Strategic but AI isn't ready. Buy now, architect for portability.

BEWARE AI can replace it but it isn't strategic. Challenge the spend.