Plug-and-play AI capabilities with published benchmarks, known failure modes, and ongoing validation — so you can adopt AI faster without building and testing everything in-house.
New to MCP?
MCP (Model Context Protocol) is an open standard that lets AI assistants — Claude, ChatGPT, Copilot — connect to external tools and real data. One protocol, any model, any tool.
Proofwork builds MCP servers for high-stakes domains. Instead of the AI guessing from training data, it reasons over certified reference data — tariff schedules, regulatory rulings, compliance databases — and shows its sources.
Read the full primerOne URL. Any MCP-compatible AI assistant. No API keys, no SDK, no installation. Free to start.
https://trade-core.proofworklabs.com/mcp
Add this URL to any AI assistant that supports MCP. Currently works with Claude and ChatGPT.
See setup instructionsThree steps. No new AI stack. Works with what you already have.
Step 1
Works with Claude, ChatGPT, and any AI assistant that supports the MCP standard.
Step 2
Via MCP, the AI pulls certified reference data and domain instructions.
Step 3
The AI reasons with evidence, not guesswork. Sources included.
Your company already invested in Claude, ChatGPT, or Copilot. Proofwork skills plug into what you have via the open MCP standard — no second AI stack, no new vendor lock-in. Add domain expertise to the tools your team already knows.
Skills are portable across frontier models. When the next model ships, your workflows get better automatically. We continuously test model compatibility and re-certify — so you don't have to revalidate every upgrade.
Same skill, better results
Every skill publishes accuracy scores, failure categories, and model compatibility. You know exactly what you're getting before you deploy — and we track regression history across every update so you can see if anything changes.
Skills run in your AI workspace. Your documents, queries, and results stay between you and your AI provider. Proofwork certifies the skill before you use it — we provide the expertise, not the AI.
Security & compliance detailsCertified AI skills ready to connect to your LLM workspace.
Trade Compliance
HTS tariff classification with CBP ruling precedents, tariff-critical attribute extraction, duty stack lookup, and landed cost estimation.
Validated accuracy
7 tools
Trade Compliance
USMCA and FTA qualification pre-check: rule-of-origin lookup, tariff shift analysis, and regional value content guidance.
Coming soonTrade Compliance
AD/CVD exposure screening with scope-language analysis, and denied-party screening with LLM-powered false-positive triage.