x402 Conformance
x402 payment safety checks: validate a 402 answer, prove a server never serves before settlement.
What it does
x402 Conformance is an MCP server, a connector that lets an AI assistant use it as a tool. It is installed locally as a package and runs on your machine.
From the publisher's description, Electra Index matched it to one capability: payments. That makes it a candidate for tasks such as detect fraudulent transactions or buy products online.
Facts come from the Official MCP Registry, as declared by the publisher. Capabilities are matched automatically (low confidence) and are not a test of the tool.
At a glance
How to connect
As declared in the Official MCP Registry · not tested by Electra IndexInstall packages
- NPM
x402-conformance-mcpv1.4.0 · runs locally (stdio) - DOCKER
ghcr.io/atsp-protocol/x402-conformance:1.4.0· runs locally (stdio)
MCP settings (Claude Desktop, Cursor and other MCP clients)
{
"mcpServers": {
"x402-conformance": {
"command": "npx",
"args": [
"-y",
"x402-conformance-mcp"
]
}
}
}Tasks it helps with
Share of each task's required capabilities it covers| Detect fraudulent transactions Payments | 50% |
| Buy products online Payments | 33% |
| Handle refund requests Payments | 33% |
| Reconcile payments Payments | 33% |
Similar tools
Listed for the same task: detect fraudulent transactions- RevinhoREMOTELOCALRead-only SaaS business intelligence from GA4, Stripe, and Google Search Console
- mcpREMOTELOCALPay-per-query x402 business intelligence on Base, settled in USDC via the native 402 payment flow
- Agentic Finance GraphREMOTELOCALIndependent ledger of AI-agent money on Base: ranked agents, payments, detections, statements
- Vyfakturuj MCP by usefulapiREMOTELOCALRead and create Vyfakturuj invoices and contacts: search, number series, payment methods, tags
- Wild Apricot MCP by usefulapiREMOTELOCALLook up members, events, registrations, invoices and payments, and add contacts or check in guests
- Teachworks MCP by usefulapiREMOTELOCALRead Teachworks students, families, tutors, lessons, invoices and payments; book lessons
Ready-made AI agents
Facts & evidence
Each fact shows where it was seen and when.| Fact | Value | Evidence | Source | Last confirmed |
|---|---|---|---|---|
| Install package | x402-conformance-mcp, ghcr.io/atsp-protocol/x402-conformance:1.4.0 | DECLARED | SRC-001 Official MCP Registry | 54m ago |
| Package registries | npm, oci | DECLARED | SRC-001 Official MCP Registry | 54m ago |
| Local install (package) | yes | DECLARED | SRC-001 Official MCP Registry | 54m ago |
| Remote access (hosted) | no | DECLARED | SRC-001 Official MCP Registry | 54m ago |
| Website | https://github.com/atsp-protocol/x402-conformance/blob/main/docs/USING.md | DECLARED | SRC-001 Official MCP Registry | 54m ago |
| Repository | https://github.com/atsp-protocol/x402-conformance | DECLARED | SRC-001 Official MCP Registry | 54m ago |
| Registry status | active | DECLARED | SRC-001 Official MCP Registry | 54m ago |
| Version | 1.4.0 | DECLARED | SRC-001 Official MCP Registry | 54m ago |
| MCP server | yes | DECLARED | SRC-001 Official MCP Registry | 54m ago |
Change history
- NEW23 Oct 2026first seen in the index
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Free alerts · no accountQuestions about x402 Conformance
How do I connect x402 Conformance?
Install the npm package x402-conformance-mcp. The exact settings are in "How to connect" above, as declared in the Official MCP Registry.
What can I use x402 Conformance for?
Based on its description, it is most relevant to: detect fraudulent transactions, buy products online, handle refund requests, reconcile payments.