SCVD x402 Verifier — is an MCP server with 5 tools an agent can call, among them get_defect_definition, lookup_endpoint_readiness, preflight_x402_endpoint. It answers at https://scvd.store/mcp/verifier over streamable HTTP, and it listed its tools to an anonymous client, so no sign-in was needed for that. Our probes reached it 8 of 8 times since 6 September 2026; the last check, on 17 October 2026, succeeded.
A second MCP door (scvd-x402-verifier) serving only read-only x402 verification tools under task-shaped names, on the same handlers as the store's full door, with no paid tool reachable. For a client that should never see a shelf.
Description as the publisher wrote it.
| Tool | What it does |
|---|---|
get_defect_definition | The definition of one named x402 defect class from the store's registered vocabulary: what a clear door asserts, what a buyer loses when it is present, whether it is detectable without paying, which check reports it, and what observation wo Inputs: id |
lookup_endpoint_readiness | Read what the signed weekly x402 readiness corpus holds about one host: rounds probed of rounds since first sighting, the last signed verdict, the tier with its fraction, the gaps counted against the observer. From the chain, not a live pro Inputs: host |
preflight_x402_endpoint | Preflight an x402 endpoint before paying it: one unpaid probe answering whether the URL serves a well-formed x402 v2 challenge a stock client could sign — 402 status, parseable PAYMENT-REQUIRED, signable accepts, testnet catch — with every Inputs: url |
verify_scvd_artifact | Verify a certificate, stamp or anchor id this store issued: the exact signed bytes and the ed25519 key, so the check can be repeated offline. Free forever, whether or not anyone bought the thing. Inputs: id |
verify_x402_receipt | Verify an x402 signed receipt or offer from any issuer: structure, signature against the issuer's key (pass public_key_hex for a fully offline check; otherwise the did:web key is resolved), liveness. A verdict with every check named. Establ Inputs: artifact, kind, public_key_hex |
Every block below points at https://scvd.store/mcp/verifier. Pick your client and copy.
claude mcp add --transport http scvd-x402-verifier https://scvd.store/mcp/verifier
{
"mcpServers": {
"scvd-x402-verifier": {
"command": "npx",
"args": ["-y", "mcp-remote", "https://scvd.store/mcp/verifier"]
}
}
}{
"mcpServers": {
"scvd-x402-verifier": {
"url": "https://scvd.store/mcp/verifier"
}
}
}{
"servers": {
"scvd-x402-verifier": {
"type": "http",
"url": "https://scvd.store/mcp/verifier"
}
}
}{
"context_servers": {
"scvd-x402-verifier": {
"url": "https://scvd.store/mcp/verifier"
}
}
}{
"mcpServers": {
"scvd-x402-verifier": {
"serverUrl": "https://scvd.store/mcp/verifier"
}
}
}{
"mcpServers": {
"scvd-x402-verifier": {
"url": "https://scvd.store/mcp/verifier"
}
}
}name: SCVD x402 Verifier —
version: 0.0.1
schema: v1
mcpServers:
- name: SCVD x402 Verifier —
type: streamable-http
url: https://scvd.store/mcp/verifier{
"mcpServers": {
"scvd-x402-verifier": {
"httpUrl": "https://scvd.store/mcp/verifier"
}
}
}{
"mcpServers": {
"scvd-x402-verifier": {
"type": "http",
"url": "https://scvd.store/mcp/verifier"
}
}
}{
"mcpServers": {
"scvd-x402-verifier": {
"url": "https://scvd.store/mcp/verifier"
}
}
}goose://extension?url=https%3A%2F%2Fscvd.store%2Fmcp%2Fverifier&type=streamable_http&id=scvd-x402-verifier&name=SCVD%20x402%20Verifier%20%E2%80%94
It answered our last check on 17 October 2026 in 453 ms. Over 8 checks since 6 September 2026 it answered 8. Status here comes from Neuronto's own probes, not from the publisher.
Yes. It is published by scvd.store and served from scvd.store, the vendor's own domain: https://scvd.store/mcp/verifier.
5, as returned by the server's own tools/list on 7 September 2026: get_defect_definition, lookup_endpoint_readiness, preflight_x402_endpoint, verify_scvd_artifact, verify_x402_receipt.
It answered our last check on 17 October 2026 in 453 ms. Over 8 checks since 6 September 2026 it answered 8.
Put the server under mcpServers in ~/.cursor/mcp.json with the URL https://scvd.store/mcp/verifier. The exact JSON is above, with the same setup for Claude Code, Claude Desktop, VS Code, Windsurf, Zed, Gemini CLI and the rest.
It listed its tools to an anonymous client, so reading the tool list needs no key. Individual tools can still ask for credentials in their own inputs.
Publisher: scvd.store. Endpoint host: scvd.store. ARD identifier: urn:air:scvd.store:server:x402-verifier.
First indexed 6 September 2026. The tools are exactly what the server returned; nothing on this page
is inferred from its name. Ranking in Neuronto search is never for sale.