x402 Conformance vs Agent Receipt Verify
x402 Conformance is an MCP server published by atsp-protocol. Marketplaces we read that list it: 1 (Official MCP Registry). Agent Receipt Verify is an MCP server published by holistis. Marketplaces we read that list it: 1 (Official MCP Registry). As of our marketplace pass on 2026-10-26. This pair was picked by a reader, not by our comparison rule, so search engines are asked not to index the page.
Where each is published
| Marketplace |  x402 Conformance |  Agent Receipt Verify |
|---|---|---|
| Official MCP Registry | Listed Version: 1.6.0 Forks (GitHub): 0 Stars (GitHub): 0 Not marked · First seen |
Listed Version: 0.2.1 Forks (GitHub): 0 Stars (GitHub): 0 Not marked · First seen |
Each figure is the marketplace's own and is never added up across marketplaces. A marketplace that publishes no figure shows none: no number is not zero.
The facts side by side
| Fact | x402 Conformance | Agent Receipt Verify |
|---|---|---|
| Marketplaces that list it | 1 | 1 |
| Stars (GitHub) | 0 | 0 |
| Forks (GitHub) | 0 | 0 |
| Last release (differs) | 2026-10-25 | Not published |
| Where it runs (differs) | On your machine (x402-conformance-mcp) | On your machine (https://github.com/holistis/agent-receipt-verify/releases/download/v0.2.1/agent-receipt-verify-0.2.1.mcpb) |
| Transport | stdio | stdio |
| Tools it declares | Not published | Not published |
| Environment variables it asks for | Not published | Not published |
| Licence | Not stated | Not stated |
| Repository (differs) | github.com/atsp-protocol/x402-conformance | github.com/holistis/agent-receipt-verify |
| Changes in the last 7 days (differs) | 4 | 0 |
| First seen (differs) | 2026-10-23 | 2026-10-17 |
Lines where the two differ have a tinted background and bold values. Where the data itself says which value is better (more marketplaces, a larger figure of the same marketplace, a fresher release, a verified mark on a marketplace that lists both), the better one is also marked green with ▲ and the worse one red with ▼. Where it runs, the transport, the tools, the settings, hooks, the bundle's parts, the licence and the week's changes are marked only as different: more or fewer is not better in itself.
What each says it does
x402 Conformance
x402 payment safety checks: validate a 402 answer, prove a server never serves before settlement.
Agent Receipt Verify
Checks x402 endpoint conformance before an agent pays, and links the receipt to its settlement.
How to run each
x402 Conformance As a local MCP server: npm package
claude mcp add --transport stdio x402-conformance -- npx -y x402-conformance-mcpAgent Receipt Verify
No data for an automatic command: what its marketplaces declare does not say unambiguously how to connect it.
Commands built only from what the marketplaces declare; the full set for every client is on each card.
Tools each declares
Neither one's marketplaces publish a list of tools, so there is nothing to compare.
Settings each asks for
Neither one's marketplaces publish the settings it asks for.
What it can do: x402 Conformance · What it can do: Agent Receipt Verify · Compare two other plugins
Data comes from the Official MCP Registry (registry.modelcontextprotocol.io), CC0 1.0. Figures come from our own regular passes over the marketplaces, last read on . We publish no contact details for plugin publishers.