
probe402
Actively maintained
≈ 1visits/mo
Little sign of use · estimate, read Oct 13, 2026
- For
- operators of machine payment endpoints who want independent evidence of what their infrastructure actually does
- Activity
- Actively maintainedrelease 3 days ago · site updated 11 days ago
- Used for
- check whether a paid endpoint answers as its listing claims
- verify that a payment request can be built from published documentation
- confirm whether a settled payment returned usable output
- Has an MCP server (2 in the registry)public registry →
- Publishes llms.txt, a file written for AI assistantsprobe402.com ↗
- MCP servercom.probe402/endpoint-historyverified in the MCP registry
- Stateanswers, 2 toolschecked 2026-10-21
- Address to connectprobe402.com/mcp
- OpenAPI spec13 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

EraMCP · sign-in
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CryptominiumMCP · open
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Ripples MetricsMCP · sign-in
Tracks visits, signups, payments and Google Ads spend per traffic channel, and scores visits for automated traffic before counting them.
31ActiveFrom $29/mo2026 - #4

AgentGradeMCP · open
Probes a URL for agent-facing files, MCP endpoints and payment protocols, returning a graded readiness report with fixes.
16Maintained - #5

TaxooorMCP · open
Indexes crypto tax treatments quoted verbatim from 16 tax authorities' published guidance, with dated source pages.
4Active - #6

Council of AIMCP · open
Measures AI models and their endpoints on frozen question banks graded by fixed rules, publishing signed, re-checkable evidence cards.
1Active2026
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 probe402 for?
Sign in to leave a noteWhat is probe402?
Repeatedly tests machine payment endpoints on a schedule, keeping dated, sealed records of what they quote, answer and charge. It is listed in the Atlas under Finance.
Who is probe402 for?
operators of machine payment endpoints who want independent evidence of what their infrastructure actually does
Do people use probe402?
Little sign of use: ≈ 1 visits/mo · estimate, 2026-10.
Is probe402 still maintained?
Actively maintained: release 3 days ago · site updated 11 days ago.
What are alternatives to probe402?
In Finance, by use: Era, Cryptominium, Ripples Metrics, AgentGrade, Taxooor, Council of AI.
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
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