Independent build-vs-buy index: score software categories BUILD/BUY/BRIDGE/BEWARE.
Connect Remote server
claude mcp add --transport http b4-index https://b4-index.vercel.app/mcp --header "Authorization: Bearer <YOUR_API_KEY>"
{
"mcpServers": {
"b4-index": {
"url": "https://b4-index.vercel.app/mcp",
"headers": {
"Authorization": "Bearer <YOUR_API_KEY>"
}
}
}
}
{
"servers": {
"b4-index": {
"type": "http",
"url": "https://b4-index.vercel.app/mcp",
"headers": {
"Authorization": "Bearer <YOUR_API_KEY>"
}
}
}
}
Settings > Connectors > Add custom connector
URL: https://b4-index.vercel.app/mcp
Replace the values in angle brackets with your own. Keys stay on your machine; we never see them.
Tools 5 found in our last check
b4_browseFor browsing, filtering, or finding the index's name for something. Example: {"query": "warehouse picking", "domain": "Supply Chain"}. Search and filter every independently scored software category in the B4 Index. Browse by keyword, domain, quadrant, or industry. When filtering…
b4_scoreFor one exact category name or id. Example: {"category": "Expense Management", "org": "medium"}. 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 evaluation. Structured…
b4_auditFor a list of vendor or product names (a stack), with an optional description per row. Example: {"tools": ["Salesforce", {"name": "Lydia Voice", "description": "voice-directed picking in the warehouse"}]}. Each row resolves by name when the vendor is indexed, otherwise by its de…
b4_compareFor one exact category name or id when the question is the build path against the buy path. Example: {"category": "Order Management (OMS)"}. Returns the authored side-by-side comparison (build, buy and bridge by dimension), when building is right, when buying is right, and the s…
b4_recommendFor a need or problem in words, not a vendor name. Example: {"description": "we need to route warehouse pickers by voice"}. Get B4 Index recommendations from a natural language description of a software need or business context. Matches the description to relevant categories and…
Headers
| Name | Description |
|---|---|
AuthorizationOptional, secret | Optional. 'Bearer <b4_... key>' unlocks the Pro workflow tools (b4_audit, b4_compare, b4_recommend). The free tier (b4_browse, b4_score) needs no credentials. |
Details
| Endpoint | https://b4-index.vercel.app/mcp (Streamable HTTP) |
| First published | 3 Jul 2026 |
| Last updated | 3 Jul 2026 |
| Registry name | ai.benroberts/b4-index |
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