B4 Index MCP · Ben Roberts AI

Operational
Unclaimed — claim this pagedata Streamable HTTP2025-06-18 API key expected
https://b4-index.vercel.app/mcp
Badge
99.71%
Availability · 30 days · 350 checks
327 ms
Latency (last observation)
rev 5
Contract
40days
Schema stable
0
Incidents · 30 days
Aug 6, 2026
Observed since

Availability — last 30 days

No failures Some failures Mostly failing Auth required No observations

Last observed 1 h ago by MCP Tools Edge Scanner · scheduled every 120 min

Latency recovered below 1,000 ms Informational Oct 26, 2026 — 1:45 PM
Latest observation: 221 ms.
VerifiedObserved initialization latency: 221 ms.
Observed by MCP Tools Edge Scanner
Latency crossed above 1,000 ms Informational Oct 26, 2026 — 9:35 AM
Three consecutive observations exceeded 1,000 ms (latest: 2768 ms).
VerifiedObserved initialization latency: 2768 ms.
InterpretationClients may experience slow tool discovery and responses.
Observed by MCP Tools Edge Scanner
Descriptions or metadata changed Informational Oct 4, 2026 — 3:15 PM
1 description/metadata change; the functional contract is unchanged (hash sha256:286d496bc88fb9c1…).
VerifiedDescriptions or metadata for b4_browse changed.
InterpretationNo structural change. Wording changes can still influence model tool selection.
PathChangeClassificationDetail
tools.b4_browse description changed Informational Descriptions or metadata for b4_browse changed.
No structural change. Wording changes can still influence model tool selection.
Observed by MCP Tools Edge Scanner
Latency recovered below 1,000 ms Informational Sep 26, 2026 — 7:25 AM
Latest observation: 418 ms.
VerifiedObserved initialization latency: 418 ms.
Observed by MCP Tools Edge Scanner
Latency crossed above 1,000 ms Informational Sep 26, 2026 — 5:20 AM
Three consecutive observations exceeded 1,000 ms (latest: 2741 ms).
VerifiedObserved initialization latency: 2741 ms.
InterpretationClients may experience slow tool discovery and responses.
Observed by MCP Tools Edge Scanner
Server version changed Informational Sep 23, 2026 — 3:10 AM
Server reports version 3.4.9 (was 3.4.8).
Verifiedinitialize returned serverInfo.version 3.4.9.
InterpretationVersion changes often accompany contract or behavior changes; drift detection will confirm.
Observed by MCP Tools Edge Scanner
Server version changed Informational Sep 23, 2026 — 1:05 AM
Server reports version 3.4.8 (was 3.4.7).
Verifiedinitialize returned serverInfo.version 3.4.8.
InterpretationVersion changes often accompany contract or behavior changes; drift detection will confirm.
Observed by MCP Tools Edge Scanner
Server version changed Informational Sep 22, 2026 — 9:00 PM
Server reports version 3.4.7 (was 3.4.3).
Verifiedinitialize returned serverInfo.version 3.4.7.
InterpretationVersion changes often accompany contract or behavior changes; drift detection will confirm.
Observed by MCP Tools Edge Scanner
Breaking contract changes (6) Breaking Sep 22, 2026 — 9:00 PM
1 breaking change. b4_audit.inputSchema.tools[] changed from string to unspecified.
Verifiedb4_audit.inputSchema.tools[] changed from string to unspecified.
InterpretationExisting calls that send string values may fail schema validation.
Raw event details
{
  "beforeRev": 4,
  "afterRev": 5,
  "changeCount": 6
}
View full diff Observed by MCP Tools Edge Scanner
Server version changed Informational Sep 22, 2026 — 7:00 PM
Server reports version 3.4.3 (was 3.4.0).
Verifiedinitialize returned serverInfo.version 3.4.3.
InterpretationVersion changes often accompany contract or behavior changes; drift detection will confirm.
Observed by MCP Tools Edge Scanner
Descriptions or metadata changed Informational Sep 19, 2026 — 4:55 PM
5 description/metadata changes; the functional contract is unchanged (hash sha256:cc7fb598defb335c…).
VerifiedDescriptions or metadata for b4_audit changed.
InterpretationNo structural change. Wording changes can still influence model tool selection.
PathChangeClassificationDetail
tools.b4_audit description changed Informational Descriptions or metadata for b4_audit changed.
No structural change. Wording changes can still influence model tool selection.
tools.b4_browse description changed Informational Descriptions or metadata for b4_browse changed.
No structural change. Wording changes can still influence model tool selection.
tools.b4_compare description changed Informational Descriptions or metadata for b4_compare changed.
No structural change. Wording changes can still influence model tool selection.
tools.b4_recommend description changed Informational Descriptions or metadata for b4_recommend changed.
No structural change. Wording changes can still influence model tool selection.
tools.b4_score description changed Informational Descriptions or metadata for b4_score changed.
No structural change. Wording changes can still influence model tool selection.
Observed by MCP Tools Edge Scanner
Server version changed Informational Sep 19, 2026 — 4:30 AM
Server reports version 3.4.0 (was 3.3.0).
Verifiedinitialize returned serverInfo.version 3.4.0.
InterpretationVersion changes often accompany contract or behavior changes; drift detection will confirm.
Observed by MCP Tools Edge Scanner
Breaking contract changes (18) Breaking Sep 19, 2026 — 4:30 AM
12 breaking, 4 non-breaking changes. minLength at b4_audit.inputSchema.tools[] was set to 1.
VerifiedminLength at b4_audit.inputSchema.tools[] was set to 1.
InterpretationExisting calls outside the new bound may fail schema validation.
Raw event details
{
  "beforeRev": 3,
  "afterRev": 4,
  "changeCount": 18
}
View full diff Observed by MCP Tools Edge Scanner
Non-breaking contract changes (9) Non-breaking Sep 7, 2026 — 5:05 PM
5 non-breaking changes. Tool b4_audit now declares an output schema.
VerifiedTool b4_audit now declares an output schema.
InterpretationA new guarantee for consumers.
Raw event details
{
  "beforeRev": 2,
  "afterRev": 3,
  "changeCount": 9
}
View full diff Observed by MCP Tools Edge Scanner
Descriptions or metadata changed Informational Sep 7, 2026 — 3:05 PM
5 description/metadata changes; the functional contract is unchanged (hash sha256:e9992024d6bda77f…).
VerifiedDescriptions or metadata for b4_audit changed.
InterpretationNo structural change. Wording changes can still influence model tool selection.
PathChangeClassificationDetail
tools.b4_audit description changed Informational Descriptions or metadata for b4_audit changed.
No structural change. Wording changes can still influence model tool selection.
tools.b4_browse description changed Informational Descriptions or metadata for b4_browse changed.
No structural change. Wording changes can still influence model tool selection.
tools.b4_compare description changed Informational Descriptions or metadata for b4_compare changed.
No structural change. Wording changes can still influence model tool selection.
tools.b4_recommend description changed Informational Descriptions or metadata for b4_recommend changed.
No structural change. Wording changes can still influence model tool selection.
tools.b4_score description changed Informational Descriptions or metadata for b4_score changed.
No structural change. Wording changes can still influence model tool selection.
Observed by MCP Tools Edge Scanner
Descriptions or metadata changed Informational Aug 12, 2026 — 4:50 AM
3 description/metadata changes; the functional contract is unchanged (hash sha256:e9992024d6bda77f…).
VerifiedDescriptions or metadata for b4_audit changed.
InterpretationNo structural change. Wording changes can still influence model tool selection.
PathChangeClassificationDetail
tools.b4_audit description changed Informational Descriptions or metadata for b4_audit changed.
No structural change. Wording changes can still influence model tool selection.
tools.b4_compare description changed Informational Descriptions or metadata for b4_compare changed.
No structural change. Wording changes can still influence model tool selection.
tools.b4_recommend description changed Informational Descriptions or metadata for b4_recommend changed.
No structural change. Wording changes can still influence model tool selection.
Observed by MCP Tools Edge Scanner
Non-breaking contract changes (10) Non-breaking Aug 9, 2026 — 2:20 PM
5 non-breaking changes. Optional parameter org was added at b4_audit.inputSchema.
VerifiedOptional parameter org was added at b4_audit.inputSchema.
InterpretationExisting calls are unaffected.
Raw event details
{
  "beforeRev": 1,
  "afterRev": 2,
  "changeCount": 10
}
View full diff Observed by MCP Tools Edge Scanner
Baseline captured Aug 6, 2026 — 4:55 AM
5 tools, 0 resources, 0 prompts observed. Future observations will identify outages, recoveries, protocol changes, and contract drift from this state.
VerifiedCanonical contract hash sha256:c07d2ab1b77e9d24… computed from the normalized capability inventory.
Raw event details
{
  "contractHash": "sha256:c07d2ab1b77e9d24dbcb1a1576ab822d04fb126c88a8642466ba115ef9fd2886"
}
Observed by MCP Tools Edge Scanner