# fourzerotwo (fourzerotwo.si)

Pay-per-call data API endpoints for agents, covering UK, US and global public datasets, paid per request in USDC or by card.

- Atlas card: https://inite.ai/en/atlas/fourzerotwo.si
- Site: https://fourzerotwo.si
- For: Developers building AI agents that need public data they can pay for per call, without accounts or plans
- Categories: dev
- Use 0/100 · alive 100/100

## Used for

- look up customs commodity codes from product descriptions
- check remaining tariff quota balances by country of origin
- compare third-country duties for goods by origin country

## Price

- from 0.002 USD/usage, free plan (read 2026-10-27 on https://fourzerotwo.si/apis/uk-trade-tariff)

## For developers

- OpenAPI: https://fourzerotwo.si/openapi.json (547 paths)
- MCP server: si.fourzerotwo/data (namespace; open on 2026-10-27, 3 tools)
- MCP server: si.fourzerotwo/environment (namespace; open on 2026-10-27, 64 tools)
- MCP server: si.fourzerotwo/health (namespace; open on 2026-10-27, 29 tools)
- MCP server: si.fourzerotwo/research (namespace)
- MCP server: si.fourzerotwo/safety-recalls (namespace)
- MCP server: si.fourzerotwo/tools (namespace)
- MCP server: si.fourzerotwo/trade-procurement (namespace)
- MCP server: si.fourzerotwo/transport (namespace)
- MCP server: si.fourzerotwo/uk-business (namespace)
- MCP server: si.fourzerotwo/uk-property (namespace)
- MCP server: si.fourzerotwo/uk-public-services (namespace)
- MCP server: si.fourzerotwo/web (namespace)
- Read 2026-10-27

## MCP server, measured daily

Server: https://fourzerotwo.si/mcp, checked every day since 2026-10-27 (7 checks).

- Answered: 100% of daily checks
- Median first answer: 551 ms
- Sign-in: none
- Context its tool definitions take: about 605 tokens (3 tools)
- Tool definitions: A, 100/100
- Method: https://inite.ai/en/atlas/mcp/report

## Your data

- Certifications stated: none
- Read 2026-10-27

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Source: INITE Atlas, https://inite.ai/en/atlas/fourzerotwo.si. JSON: https://inite.ai/api/atlas/fourzerotwo.si. MCP: https://inite.ai/api/mcp (atlas_lookup).