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x402Shield

Checks each agent x402 payment against delegated authority, budget, policy and replay before a signing key is used.

Actively maintained

FinanceFor developersAgents
x402shield.dev ↗
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x402Shield: data, price, alternatives
At a glancechecked Oct 26, 2026

not read yet

Use

For
Agent operators who let autonomous AI agents make x402 payments and need authorization checks.
Activity
Actively maintainedsite updated 7 days ago
How it runs
API
Used for
  • Check agent payments against delegated spending limits
  • Park large agent payments for human approval
  • Record why each agent payment was authorized
Worth knowingcomputed from what we read · each with its source
Your datawhat they publish, each line with its page · read Oct 27, 2026

    These are x402Shield'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 27, 2026
    • MCP serverdev.x402shield/x402shieldverified in the MCP registry
    • Stateanswers, 5 toolschecked 2026-10-27
    • Address to connectx402shield.dev/api/mcp
    • API docsx402shield.dev/developersthe vendor's page ↗
    • MCP docsx402shield.dev/blog/mcp-payment-authorizationthe vendor's page ↗

    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 Financeby use, among tools still maintained

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

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    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

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    Questions this page answers
    • What is x402Shield?

      Checks each agent x402 payment against delegated authority, budget, policy and replay before a signing key is used. It is listed in the Atlas under Finance.

    • Who is x402Shield for?

      Agent operators who let autonomous AI agents make x402 payments and need authorization checks.

    • Do people use x402Shield?

      Little sign of use.

    • Is x402Shield still maintained?

      Actively maintained: site updated 7 days ago.

    • What are alternatives to x402Shield?

      In Finance, by use: Holdings, StackEasy, Walnut, SEC EDGAR Filing Software + MCP Server & Alerts, mybankstatementanalysis.

    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