Proof Layer MCP Server
by world-999-labsio.github.World-999-Labs/proof-layerv1.0.1
Signed, hash-chained provenance receipts for AI agent actions.
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security
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freshness
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Install Proof Layer MCP server
Install in Claude Code
claude mcp add proof-layer -e PROOF_LAYER_API_KEY='<proof-layer-api-key>' -- npx -y @proof-layer/mcpInstall in Cursor
{
"mcpServers": {
"proof-layer": {
"command": "npx",
"args": [
"-y",
"@proof-layer/mcp"
],
"env": {
"PROOF_LAYER_API_KEY": "<proof-layer-api-key>"
}
}
}
}Add to ~/.cursor/mcp.json (global) or .cursor/mcp.json (project).
Install in Claude Desktop
{
"mcpServers": {
"proof-layer": {
"command": "npx",
"args": [
"-y",
"@proof-layer/mcp"
],
"env": {
"PROOF_LAYER_API_KEY": "<proof-layer-api-key>"
}
}
}
}Settings → Developer → Edit Config (claude_desktop_config.json), then restart.
Install in VS Code
{
"servers": {
"proof-layer": {
"type": "stdio",
"command": "npx",
"args": [
"-y",
"@proof-layer/mcp"
],
"env": {
"PROOF_LAYER_API_KEY": "<proof-layer-api-key>"
}
}
}
}Add to .vscode/mcp.json in your workspace.
Install in Windsurf
{
"mcpServers": {
"proof-layer": {
"command": "npx",
"args": [
"-y",
"@proof-layer/mcp"
],
"env": {
"PROOF_LAYER_API_KEY": "<proof-layer-api-key>"
}
}
}
}Add to ~/.codeium/windsurf/mcp_config.json.
Configuration
| Variable | Required | Secret | Description |
|---|---|---|---|
| PROOF_LAYER_API_KEY | yes | yes | Your Proof Layer API key from https://prooflayer.world999labs.com/dashboard/keys |
| PROOF_LAYER_API_URL | — | — | Override the default API endpoint (default: https://prooflayer.world999labs.com) |
| PROOF_LAYER_TELEMETRY | — | — | Set to 'off' to disable anonymous usage telemetry (default: on) |
Freshness
Slowing — last maintenance signal 5mo ago. The newest of the signals below sets the band.
Last commit (default branch)
2026-05-03 · 5mo ago · GitHub
Latest release
no data · GitHub
Package published
no data · npm/PyPI
Registry entry updated
2026-05-03 · 5mo ago · official registry · v1.0.1
FAQ
›How do I install the Proof Layer MCP server in Claude Code?
Run: claude mcp add proof-layer -e PROOF_LAYER_API_KEY='<proof-layer-api-key>' -- npx -y @proof-layer/mcp. For Cursor, VS Code, Claude Desktop and Windsurf, use the install tabs above.
›Does Proof Layer require an API key?
Yes. It expects PROOF_LAYER_API_KEY, of which 1 is a secret.
›Can I use Proof Layer as a remote (hosted) MCP server?
No hosted endpoint is published; it runs locally over stdio.
›Is Proof Layer in the official MCP registry?
Yes, as io.github.World-999-Labs/proof-layer.