fourzerotwo
Free plan · From $0.00 per use
not read yet
Use
- For
- Developers building AI agents that need public data they can pay for per call, without accounts or plans
- Price
- Free plan · From $0.00 per usepricing page, read Oct 27, 2026
- How it runs
- API
- 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
- Has an MCP server (12 in the registry)public registry →
- Publishes llms.txt, a file written for AI assistantsfourzerotwo.si ↗
- MCP serversi.fourzerotwo/dataverified in the MCP registry
- Stateanswers, 3 toolschecked 2026-10-27
- Address to connectfourzerotwo.si/mcp
- OpenAPI spec547 pathsthe spec ↗
This card as JSON, for your agent →
Each line is something a program found when it went looking: the registry entry, the server's own answer, a spec that parses. A missing line means we did not find it, not that it does not exist.
Figure and bar: visits/mo, estimate · year: online since
- #1
Merge
Provides one unified API for HR, payroll, ATS, CRM, accounting and file-storage integrations, plus authenticated tool access for AI agents.
35.1kActiveFrom $650/mo2020 - #2
Paragon
Provides embedded integration infrastructure so SaaS products ship native integrations with customers' apps, handling auth, data sync and workflows.
24.4kActivePay per use2019 - #3
CROO
Decentralized infrastructure for building, discovering, and trading autonomous AI agents with on-chain identity and verifiable service contracts.
18.4kActive - #4
APITier
Connects AI agents to production APIs for address validation, lead scoring, and fraud detection across 120 countries.
1.6kMaintainedFrom $9/mo - #5
TwitterapiMCP · open
Returns public X posts, profiles, follower graphs and trends over a REST API, billed per result returned.
11.7kActiveFrom $0.00 per use2024
Not it? Say what you need
betaThree tools from the Atlas for the job you describe, each with what fits and what does not.
No notes yet. What do you use fourzerotwo for?
Sign in to leave a noteWhat is fourzerotwo?
Pay-per-call data API endpoints for agents, covering UK, US and global public datasets, paid per request in USDC or by card. It is listed in the Atlas under Developer tools.
Who is fourzerotwo for?
Developers building AI agents that need public data they can pay for per call, without accounts or plans
How much does fourzerotwo cost?
fourzerotwo has a free plan; paid plans start at $0.00 per use, per its pricing page on 2026-10-27.
Is fourzerotwo free?
Yes, fourzerotwo has a free plan, per its pricing page on 2026-10-27.
Do people use fourzerotwo?
Little sign of use.
What are alternatives to fourzerotwo?
In Developer tools, by use: Merge, Paragon, CROO, APITier, Twitterapi.
How we read a tool
No votes, no reviews, no vendor claims. Every week a crawler reads each tool's own site and a few public registries, and the words on the card are bands over what it read.
- Use: visits to the site (estimated), installs from npm and PyPI, presence in Chrome's usage report.
- Activity: the newest release on GitHub, npm or PyPI; the newest dated page on the site; open roles on a public jobs board.
- Price: the vendor's own pricing page, read with the date. A figure is printed only when it is on that page.
- The line and the use cases are written by us from the homepage, one tool at a time, and refused when they repeat the vendor's marketing.
How AI assistants read each site — the reading vendors ask us about — is on each tool's own visibility page.
How we read every tool → · By INITE Atlas Desk
Cookies
Before we count this visit
Analytics and ad measurement tell us which pages and which of our ads do their job: Google Analytics and Google Ads, the Meta pixel, Yandex Metrica, and one first-party id of our own. Nothing is stored until you answer, and declining changes nothing about the site.