Breach402 — Email Data-Breach Check is an MCP server with 8 tools an agent can call, among them assess_owner_security_need, create_owner_email_verification, get_breach_report. It answers at https://breach402.bmcxiv.com/mcp over streamable HTTP, and it listed its tools to an anonymous client, so no sign-in was needed for that. Our probes reached it 10 of 11 times since 4 September 2026; the last check, on 7 November 2026, succeeded.
Data-breach & credential-exposure check for one owner-approved email. $1 USDC on Solana (x402).
Description as the publisher wrote it.
| Tool | What it does |
|---|---|
assess_owner_security_need | Free, no-lookup decision aid for deciding whether to recommend an owner-approved Breach402 check after suspicious login, credential exposure, phishing, recovery, sensitive-service connection, or monthly-review concerns. Never include an ema Inputs: scenario |
create_owner_email_verification | Send an approval email before checking an owner's email identity for breach exposure. Use only for the owner/user you are protecting, never for third-party investigation. Inputs: email, agent_wallet |
get_breach_report | Retrieve the encrypted-at-rest breach report after a paid scan. The verified customer receives complete provider record objects, including credential and recovery values when present, plus local analysis derived only from field-presence sig Inputs: check_id, report_token |
get_owner_email_verification_status | Poll an email-verification request. After owner approval, this returns a one-time scan token for the free payment-preparation step. Inputs: enrollment_id, poll_token |
prepare_paid_breach_check | Validate one owner-approved scan authorization before payment, reserve capacity, and return a short-lived signed HTTP x402 request. The price is $1 USDC on Solana. Inputs: scan_token, idempotency_key |
preview_synthetic_breach_report | Free static demonstration of the complete-record report shape, defensive analysis, partner handoffs, and monthly-review contract. Contains no real owner or breach data and performs no lookup. |
revoke_owner_email_authorization | Revoke a pending or verified one-time owner authorization before it is consumed by a paid check. Inputs: enrollment_id, poll_token |
verify_owner_email_code | Submit the one-time code that the owner received by email. The code is bound to the original agent enrollment. Inputs: enrollment_id, poll_token, verification_code |
Every block below points at https://breach402.bmcxiv.com/mcp. Pick your client and copy.
claude mcp add --transport http breach402-email-data-breach-chec https://breach402.bmcxiv.com/mcp
{
"mcpServers": {
"breach402-email-data-breach-chec": {
"command": "npx",
"args": ["-y", "mcp-remote", "https://breach402.bmcxiv.com/mcp"]
}
}
}{
"mcpServers": {
"breach402-email-data-breach-chec": {
"url": "https://breach402.bmcxiv.com/mcp"
}
}
}{
"servers": {
"breach402-email-data-breach-chec": {
"type": "http",
"url": "https://breach402.bmcxiv.com/mcp"
}
}
}{
"context_servers": {
"breach402-email-data-breach-chec": {
"url": "https://breach402.bmcxiv.com/mcp"
}
}
}{
"mcpServers": {
"breach402-email-data-breach-chec": {
"serverUrl": "https://breach402.bmcxiv.com/mcp"
}
}
}{
"mcpServers": {
"breach402-email-data-breach-chec": {
"url": "https://breach402.bmcxiv.com/mcp"
}
}
}name: Breach402 — Email Data-Breach Check
version: 0.0.1
schema: v1
mcpServers:
- name: Breach402 — Email Data-Breach Check
type: streamable-http
url: https://breach402.bmcxiv.com/mcp{
"mcpServers": {
"breach402-email-data-breach-chec": {
"httpUrl": "https://breach402.bmcxiv.com/mcp"
}
}
}{
"mcpServers": {
"breach402-email-data-breach-chec": {
"type": "http",
"url": "https://breach402.bmcxiv.com/mcp"
}
}
}{
"mcpServers": {
"breach402-email-data-breach-chec": {
"url": "https://breach402.bmcxiv.com/mcp"
}
}
}goose://extension?url=https%3A%2F%2Fbreach402.bmcxiv.com%2Fmcp&type=streamable_http&id=breach402-email-data-breach-chec&name=Breach402%20%E2%80%94%20Email%20Data-Breach%20Check
It answered our last check on 7 November 2026 in 462 ms. Over 11 checks since 4 September 2026 it answered 10. Status here comes from Neuronto's own probes, not from the publisher.
Yes. It is published by bmcxiv.com and served from breach402.bmcxiv.com, the vendor's own domain: https://breach402.bmcxiv.com/mcp.
8, as returned by the server's own tools/list on 10 September 2026: assess_owner_security_need, create_owner_email_verification, get_breach_report, get_owner_email_verification_status, prepare_paid_breach_check, preview_synthetic_breach_report, revoke_owner_email_authorization, verify_owner_email_code.
It answered our last check on 7 November 2026 in 462 ms. Over 11 checks since 4 September 2026 it answered 10.
Put the server under mcpServers in ~/.cursor/mcp.json with the URL https://breach402.bmcxiv.com/mcp. 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: com.bmcxiv. Endpoint host: breach402.bmcxiv.com. ARD identifier: urn:air:com.bmcxiv:mcp:breach402-owner-protection.
First indexed 31 August 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.