Docs & MCP | LSCP

1. Install

$ npm install @x12i/lscp

2. Register MCP servers

{
  "mcpServers": {
    "lscp-builder": {
      "command": "npx",
      "args": ["@x12i/lscp-builder"],
      "env": { "LSCP_API_KEY": "..." }
    },
    "lscp-runtime": {
      "command": "npx",
      "args": ["@x12i/lscp-runtime"],
      "env": { "LSCP_API_KEY": "...", "NEXUM_SOURCE": "graph:prod" }
    }
  }
}

3. Define a bound schema (Builder)

{
  "schema": "invoice.v1",
  "allow": ["invoice.total", "invoice.status", "invoice.due_date"],
  "deny_all_others": true,
  "require_approval_for": ["writes"]
}

4. Enforce at runtime

Every request from an agent is checked against the bound schema before it reaches Nexum's graph core — and every response is stamped with provenance.

const result = await lscpRuntime.extract({
  schema: "invoice.v1",
  field: "invoice.total",
  agentId: "agent:billing-assistant"
});

// result.value          -> "$12,400.00"
// result.sourceHash     -> "sha256:7c1e..."
// result.decision       -> "ALLOWED"

Builder MCP

Define and version bound-extraction schemas.

Runtime MCP

Enforce schemas live against agent requests.

Provenance Ledger

Immutable, queryable record of every extraction.

Haven't compiled a graph yet?

LSCP governs access — Nexum is what compiles your sources into the graph it governs.

Nexum Docs →