CPG Knowledge Graph MCP server

• check_eligibilityFree

  Check whether a GTIN can ship to a specific retailer banner in a country.

• count_gtin_coverageFree

  Global coverage statistics: GTINs, nodes, makers (supply), retailers (demand).

• find_makersFree

  Global cross-node maker (supply) search. Filter by segment / region / node / has_website.

• find_retailersFree

  Global cross-node retailer (demand) search. Filter by region / node / parent_banner.

• get_kernelFree

  SPARKS completeness tier for a brand in a market: 100 = resolvable (a real pack/size record is held) . 8 = registered (brand known, pack/size pending) . 'floor' = STANDARD default (no brand-specific record). Returns the stored tier flag — do NOT compute a score. Never returns a pack/size.

• get_signal_chainFree

  Return the full ACM-68000 signal chain for a GTIN (zero-pads to 14).

• list_brands_by_nodeFree

  SPARKS depth surface: the distinct brands SPARKS covers in a sovereign market. Answers 'what brands do you know in [node]'. Coverage only — no pack/size values.

• list_nodesFree

  The 49 sovereign nodes (the spine) — each with its GS1 GTIN and CLEAN per-node maker (supply) and retailer (demand) counts (separate subqueries, never summed).

• list_sku_typesFree

  SPARKS taxonomy: the 84 standing BPC product-type codes the graph is structured on. Validate a type against this before a typed query. (BRAND is a tier, not a type.)

• node_marketFree

  Supply↔demand bridge for ONE jurisdiction: makers (supply) and retailers (demand) as two separate counts (never summed), plus the same-node potential bridge pairs. The market-picture call for a jurisdiction; use this first for 'what does the market look like in X'.

• resolve_gtinFree

  Resolve a GTIN to its procurement readiness signal. Zero-pads input to 14 digits.

• resolve_nodeFree

  Resolve one node: its GS1 license + its makers (supply) + its retailers (demand). The market-picture call for a jurisdiction; use this first for 'what does the market look like in X'.

• resolve_scopeFree

  GSC Scoped Agents Registry — Era 1 founding registry (1,000,000 standing) plus Era 2 station-keyed registry (1,000,000 capacity, mint-on-activation) under SM-ECO-10060.

• resolve_sparksFree

  Two-branch SPARKS resolver (zero-pads GTIN to 14). Branch A GSC Territory/License GTIN (990832300xxx) -> FULL license record (public). Branch B any third-party BPC GTIN -> GATED proof {recognized, region_node, kernel_available}; the pack/size VALUE is NEVER returned. Route to Navigator. Brand match is fail-closed (normalized exact match); uncertainty -> recognized:false.

• –Code scanremote-only server, no package to scann/a
• Live reliabilityremote reachable in 1853ms20/20
• Tool poisoning14 tool descriptions checked15/15
• Auth qualityopen endpoint, read-only tools10/15
• Maintenancerepository not readable: repo not found3/15
• Maintainer identityno repository or website to verify2/10

CPG Knowledge Graph: common questions

Is CPG Knowledge Graph MCP server safe?

With care: it is graded C, so read the findings first (67/100). Read the CPG Knowledge Graph safety report

How do I install CPG Knowledge Graph?

It runs remotely at mcp.cpgknowledgegraph.ai. Add it to Claude Code, Claude Desktop or Cursor with the snippets above, or call it through the mcp.market gateway without installing anything.

Does CPG Knowledge Graph need an API key?

Not as far as the registry entry and our scan can tell: no credentials are declared or required.

Is CPG Knowledge Graph maintained?

The latest release is v1.2.4.

Is CPG Knowledge Graph up?

100% of our last 6 checks got an answer. We check remote servers about four times a day.

What can I use instead of CPG Knowledge Graph?

Servers from other publishers that do the same job: Codebase Memory MCP server.