UN Comtrade — Bilateral Trade Statistics

The United Nations Statistics Division's Commodity Trade Database. Bilateral trade flows between every reporting country and every partner country, broken down by commodity (HS codes), going back decades. The standard source for "who exports what to whom" at country level.

Part of Pipeworx — an MCP gateway connecting AI agents to 1863+ live data sources. This is an independent, unofficial integration — not affiliated with, endorsed by, or published by the upstream provider.

Why this matters for AI agents

If an agent is answering anything about international trade — bilateral relationships, commodity flows, tariffs in context, supply-chain concentration — Comtrade is the source. The data is structured (HS codes) and harmonized across countries, making cross-country comparison reliable.

Common flows:

• Bilateral analysis. "US-China trade flows in 2024." → comtrade_trade_data({reporter_code: "842", partner_code: "156", year: "2024"}) → imports + exports + balance.

• Top commodities. "What does the US import most from China?" → comtrade_top_commodities({reporter_code, partner_code, flow: "M"}).

• Top partners. "Who are the top buyers of US semiconductors?" → comtrade_top_partners({reporter_code, hs_code: "8542", flow: "X"}).

• Country code lookup. ISO 3-digit numeric codes — comtrade_country_codes returns the full mapping.

Used by the trade_bilateral_analysis and trade_country_profile compounds.

Related MCP server: mcp-fas

Auth

Comtrade has free and premium tiers. The free tier is heavily rate-limited (a few requests per minute). For higher volumes, register at https://comtradeplus.un.org and pass an API key via _apiKey.

Country and commodity codes

comtrade_country_codes returns the full mapping. Most agents pass the 3-digit numeric to avoid name-disambiguation problems.

Update cadence

Comtrade releases data with a substantial lag — typically 6–12 months after the calendar year. The most recent year you can query is usually last calendar year. Pipeworx caches with 30-day TTL since this data is essentially static once published.

Common pitfalls

• Reporter vs. partner mirror data. Both sides of a trade report it (the US reports imports from China; China reports exports to the US). Numbers don't perfectly match — different valuation methods (CIF vs FOB), shipping treatment, classification differences. Reporter-side is the convention; if you need both, request both.

• HS revision changes. The HS classification updates every 5 years (HS17, HS22, etc.). Long time-series straddle revisions; codes for the same commodity can shift. Comtrade harmonizes for you in standard queries.

• Service trade NOT included. Comtrade is goods only. Service trade lives separately (BEA / WTO data). Don't conflate.

• Re-exports. Hong Kong's "exports to the US" include massive re-exports of Chinese-origin goods. The flow parameter distinguishes; use it explicitly.

• Currency. Default values are USD — but check the unit field. Some series report quantity (kg, units) only without value.

• Unreported pairs. Not every country reports to Comtrade every year. Cuba, Iran, North Korea have major gaps. Mirror data from partners can fill the holes — query the partner's reports of trade with that country.

Quick Start

Add to your MCP client (Claude Desktop, Cursor, Windsurf, etc.):

{
  "mcpServers": {
    "comtrade": {
      "url": "https://gateway.pipeworx.io/comtrade/mcp"
    }
  }
}

What this endpoint actually serves

tools/list at https://gateway.pipeworx.io/comtrade/mcp returns the tools in the table above plus the shared Pipeworx meta-tools — ask_pipeworx, discover_tools, search_within, remember/recall and the rest of the gateway-wide set. So the tool count you see is larger than this table: a single-pack endpoint currently lists roughly 30 shared tools alongside the pack's own. The connection's initialize response states its exact scope, and is the authoritative answer for a given day.

This is deliberate, not multiplexing by accident. The meta-tools are what let a scoped connection answer a question this pack does not cover — via ask_pipeworx, which routes across the whole catalog — without you adding a second MCP server. There is currently no way to mount a pack endpoint without them; if the extra schemas cost you more context than the routing is worth, connect to the full gateway once rather than to several pack endpoints.

Or connect to the full Pipeworx gateway to get every pack's tools listed directly, instead of just this one's:

{
  "mcpServers": {
    "pipeworx": {
      "url": "https://gateway.pipeworx.io/mcp"
    }
  }
}

Both URLs reach the same gateway and the same 1863+ data sources. The only difference is which pack's tools are listed directly; ask_pipeworx reaches all of them from either one.

No MCP client? Call it over HTTP

curl -X POST https://gateway.pipeworx.io/v1/tools/comtrade_trade_data \
  -H 'Content-Type: application/json' \
  -d '{"reporter_code":"842","partner_code":"156","year":"2024"}'

No account needed for the first calls. Inspect any tool: GET https://gateway.pipeworx.io/v1/tools/comtrade_trade_data. Find one: POST https://gateway.pipeworx.io/v1/tools/search_packs with {"query":"..."}.

Run it from npm

@pipeworx/mcp-comtrade is a local stdio bridge to the Pipeworx gateway: your MCP client starts it with npx, and it forwards every call to the same https://gateway.pipeworx.io/comtrade/mcp endpoint shown above. It needs network access; there is no offline mode.

{
  "mcpServers": {
    "comtrade": {
      "command": "npx",
      "args": ["-y", "@pipeworx/mcp-comtrade"]
    }
  }
}

Without a key it calls anonymously, capped at 50 calls a day. A free account raises that to 200 a day: get a key at https://pipeworx.io/signup and add "env": { "PIPEWORX_API_KEY": "<your key>" } to the server entry. The key is sent as a Bearer token, the same way a hosted connection sends it, so calls are metered and billed exactly as they are there.

It lists only this pack's tools by default. Set PIPEWORX_META_TOOLS=1 to also list ask_pipeworx and the other gateway-wide tools.

Behind an HTTPS proxy: Node's built-in fetch does not read HTTPS_PROXY by default. Newer Node releases honour it when NODE_USE_ENV_PROXY=1 is set; check your Node version's documentation.

Using with ask_pipeworx

Instead of calling tools directly, you can ask questions in plain English — this works on the pack endpoint above as well as on the full gateway:

ask_pipeworx({ question: "your question about Comtrade data" })

The gateway picks the right tool and fills the arguments automatically.

More

• Docs and guides

• pipeworx.io

License

MIT