io.github.World-999-Labs/proof-layer
proof-layer
Is the io.github.World-999-Labs/proof-layer MCP server down? No. It answered initialize and tools/list in the probe of 2026-10-31.
Signed, hash-chained provenance receipts for AI agent actions.
alive probed 2026-11-15 · unchanged since 2026-10-31
- Run it
- npx -y @proof-layer/mcp@1.0.1 (stdio, probed in a container with the network off)
- Host
- npmjs.com
- Reports itself as
- proof-layer 1.0.0
- Capabilities
- tools
- Instructions
- none
- Of a 1M window
- 0.2 % of a 1M context window
- Count
- 1.8k tokens in Claude Opus 5.5, exact, measured 2026-10-17. With the Claude Code prefix mcp__…__ on each tool name: 1.9k. The o200k_base estimate is 985. Counted again when the tool definitions change. Method.
- Repository
- https://github.com/World-999-Labs/proof-layer
- Website
- https://prooflayer.world999labs.com
- Registry
- active, updated 2026-05-03 · registry entry
Most expensive tools
The Claude column scales the o200k estimate of each tool by this server's ratio of exact to estimate, 1.87×.
| Tool | ≈ Claude tokens | o200k estimate | Share of this server |
|---|---|---|---|
| pl_create_plan | 524 | 280 | 28 % |
| pl_evaluate | 396 | 212 | 22 % |
| pl_delegate | 277 | 148 | 15 % |
| pl_list_receipts | 226 | 121 | 12 % |
| pl_verify_receipt | 138 | 74 | 8 % |
Compare this server with others.
More servers
Other registry entries on npmjs.com, the ones next to this name; all of them.
- mcp-better io.github.Wolfe-Jam/mcp-better · needs network
- MCP Context Card io.github.Wolfe-Jam/mcp-context-card · alive
- io.github.Wopee-io/wopee-mcp · alive
- io.github.Wordpressistic/bridgistic · alive
- io.github.Wowstorelive/fashion-shopping · timeout
- CodeZaiku io.github.Wyrdsekai/codezaiku · needs network
- ResearchZosho io.github.Wyrdsekai/researchzosho · needs network
- MELRA io.github.XAGI-Lab/melra · needs args
Servers that mention layer.
- ai.agentrapay/agentra · needs auth
- Atlaso Memory ai.atlaso/mcp · needs auth
- Chess Results ai.b77/chess-results · needs auth
- ai.bassethound/bassethound · needs auth
- ai.joinmultiplayer/gpu · not found
- ai.matih/mcp · needs auth
- MorphaReels ai.morphareels/morpha · alive
- Name Whisper — ENS Intelligence Layer ai.namewhisper/ens-tools · alive
Badge for the README
The result of the latest probe, the tool count and the token cost. The feed has an entry for every probe that changed them.
A mail when this server changes
Stops answering, comes back, tool set or cost changes. One confirmation mail first, a stop link in every mail.
For the publisher
- The server answers initialize and tools/list. Nothing to fix.