Purserhouse answers only from sources it can name. This page lists them in plain words: what each one is, how often it updates, and whether a customer can see it today. The live snapshot is on the market page .
Sources and update cadence
| Source | What it gives | Updates | Status today |
|---|---|---|---|
| ECB, CBRT (Turkish central bank), fixed pegs | Exchange rates | Daily | Live |
| Freightos FBX, public lane pages | Freight market trend per lane (trend only, never a quote) | Daily | Live |
| US Consolidated Screening List | Sanctions screening | Daily | Loaded, licence not yet reviewed |
| UN Security Council list | Sanctions screening | Daily | Loaded, licence not yet reviewed |
| JWC listed areas | War-risk areas | Daily | Loaded, licence not yet reviewed |
| US HTS (USITC) | US tariff | Daily | Loaded, licence not yet reviewed |
| US Section 301 | Extra US duty layers on Chinese goods | Weekly | Loaded, licence not yet reviewed |
| Dubai Customs tariff | UAE tariff file | Daily | Loaded, licence not yet reviewed |
| UN/LOCODE | Port codes | Monthly | Live |
| US CBP CROSS | Classification rulings as evidence | On demand | Loaded, licence not yet reviewed |
| Forwarder rate sheets | Anonymous market median, only with at least three forwarders | As shared | Customer feature, not public |
Not available
The Saudi ZATCA tariff (no downloadable file), the Turkey tariff (scanned documents) and EU TARIC (login required) are not used. For these, Purserhouse does not calculate duty: the answer says “not calculated”.
What “licence status” means
Purserhouse keeps a licence ledger. A source marked “not yet reviewed” is loaded and monitored, but its numbers are not shown in customer answers or in the public data until its terms have been read and recorded. Purserhouse never fills a gap with an estimate from general knowledge.
How to read the data
- Public, no key:
curl https://purserhouse.com/api/marketreturns JSON with exchange rates, the lane trend index, which sources updated and when, and the attributions to show when you reuse it. It never contains forwarder medians or customer data. - Customer answers, with a key: the REST API
at
/api/v1described in /openapi.yaml . - AI agents: the MCP server at
https://purserhouse.com/mcp(server card ). See Purserhouse for AI agents . - For language models: /llms.txt and /llms-full.txt .
Results are guidance, not legal, customs or financial advice.
Updated: