Skip to content
vet402 logo

vet402

Verifies whether x402 API sellers deliver what agent payments paid for, by buying from them and publishing the results.

Free plan · From $49/moActively maintained

Developer toolsFor developers
vet402.com ↗X
Open vet402.comAlternativesSet it up for my team
vet402: data, price, alternatives
At a glancechecked Oct 28, 2026

440 installs/mo

Established

For
Agent developers and x402 sellers who need to check whether a paid API actually delivers before an agent pays it.
Price
Free plan · From $49/mopricing page, read Oct 29, 2026
Activity
Actively maintainedrelease 3 weeks ago · site updated 6 days ago
How it runs
SDKAPI
Used for
  • Check an x402 seller's delivery record before paying
  • See transaction and HTTP status of purchases from a domain
  • Dispute a record in the public corrections log
read off vet402.com on Oct 29, 2026
Worth knowingcomputed from what we read · each with its source
Pricingpricing page, read Oct 29, 2026

Free plan · From $49/mo

pricing page

Price Watch: every price change in the Atlas, weekly

Your datawhat they publish, each line with its page · read Oct 29, 2026

These are vet402's own statements, read from its pages. We did not audit them. A line that is missing was not found on the pages we read; it does not mean the practice is absent.

How a program reaches itfound, not claimed · read Oct 29, 2026
  • MCP servercom.vet402/vet402verified in the MCP registry
  • Stateanswers, 3 toolschecked 2026-10-29
  • Address to connectvet402.com/mcp
  • API docsvet402.com/docs/apithe vendor's page ↗
  • Status pagelinked from the homepagevet402.com/status ↗

MCP server details →

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.

Alternatives in Developer toolsby use, among tools still maintained

Figure and bar: visits/mo, estimate · year: online since

Compare vet402 with

Pick up to two.

All 10 alternatives to vet402 →

All Developer tools tools →

Not it? Say what you need

beta

Three tools from the Atlas for the job you describe, each with what fits and what does not.

From people who use itnot part of the reading

No notes yet. What do you use vet402 for?

Sign in to leave a note
Questions this page answers
  • What is vet402?

    Verifies whether x402 API sellers deliver what agent payments paid for, by buying from them and publishing the results. It is listed in the Atlas under Developer tools.

  • Who is vet402 for?

    Agent developers and x402 sellers who need to check whether a paid API actually delivers before an agent pays it.

  • How much does vet402 cost?

    vet402 has a free plan; paid plans start at $49/mo, per its pricing page on 2026-10-29.

  • Is vet402 free?

    Yes, vet402 has a free plan, per its pricing page on 2026-10-29.

  • Do people use vet402?

    Established: 440 installs/mo (npm).

  • Is vet402 still maintained?

    Actively maintained: release 3 weeks ago · site updated 6 days ago.

  • Is vet402 safe?

    We do not audit vendors. What vet402 publishes, read 2026-10-29: GDPR stated on its privacy policy.

  • What are alternatives to vet402?

    In Developer tools, by use: Microsoft AI, Cosmic, World Monitor, openstatus, CROO.

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