mondello.dev x402 EmDash Session Status

x402

mondello.dev x402 EmDash Session Status is a paid API for AI agents from mondello.dev, paid per call via x402, $0.05/call, status unknown (last checked 2026-10-12).

Probes a given site URL to check its x402 payment-gated session status and EmDash plugin availability

Price / call$0.05

Seller volume →—

Success—

StatusUnknown

How this service works

Notes from the agent era. Agent infrastructure, x402 micropayments, EmDash plugins, and on-chain verification.

Output

Returns a JSON object describing the x402 session and EmDash plugin state for the probed site, including payment gate status and on-chain verification signals.

Example use cases

Example prompt

“Can you check whether https://example.com is set up with x402 micropayments and what its EmDash session status is right now?”

Technical details

Endpoint

POSThttps://mondello.dev/api/x402/emdash/session-status?utm_source=zero.xyz

When to prefer

Use this endpoint when an AI agent needs to programmatically determine whether a specific website supports x402 micropayment gating or has an active EmDash plugin session, especially before attempting to access payment-gated content or integrate with EmDash-powered agent infrastructure on that site.

Side effects

Invalid or non-HTTPS URL returns validation error
Site is unreachable or times out — network error response
Site has no x402 or EmDash configuration — empty or null status fields
Malformed siteUrl (relative path, missing protocol) — input schema validation failure
Payment of $0.05 USDC not fulfilled — 402 Payment Required before response is returned

Input

{
  "siteUrl": "https://example.com"
}

Schema · Request body

Field	Type	Description
siteUrlrequired	string	Absolute https URL to probe.

Output

{
  "siteUrl": "https://example.com",
  "summary": {
    "okCount": 0,
    "failCount": 0,
    "warnCount": 3,
    "surfacesFailed": 11,
    "surfacesReachable": 1
  },
  "findings": [
    {
      "kind": "warn",
      "message": "No sitemap.xml — agents can't crawl"
    },
    {
      "kind": "warn",
      "message": "No llms.txt — agents can't discover content"
    },
    {
      "kind": "warn",
      "message": "No MCP endpoint at /_emdash/api/mcp"
    }
  ],
  "probedAt": "2026-06-12T04:53:48.455Z",
  "surfaces": [
    {
      "ok": true,
      "url": "https://example.com/",
      "name": "home",
      "status": 200,
      "contentType": "text/html"
    },
    {
      "ok": false,
      "url": "https://example.com/sitemap.xml",
      "name": "sitemap",
      "status": 404,
      "contentType": "text/html"
    },
    {
      "ok": false,
      "url": "https://example.com/robots.txt",
      "name": "robots",
      "status": 404,
      "contentType": "text/html"
    },
    {
      "ok": false,
      "url": "https://example.com/rss.xml",
      "name": "rss",
      "status": 404,
      "contentType": "text/html"
    },
    {
      "ok": false,
      "url": "https://example.com/feed.json",
      "name": "json-feed",
      "status": 404,
      "contentType": "text/html"
    },
    {
      "ok": false,
      "url": "https://example.com/llms.txt",
      "name": "llms.txt",
      "status": 404,
      "contentType": "text/html"
    },
    {
      "ok": false,
      "url": "https://example.com/llms-full.txt",
      "name": "llms-full",
      "status": 404,
      "contentType": "text/html"
    },
    {
      "ok": false,
      "url": "https://example.com/skills.json",
      "name": "skills-manifest",
      "status": 404,
      "contentType": "text/html"
    },
    {
      "ok": false,
      "url": "https://example.com/api/catalog.json",
      "name": "master-catalog",
      "status": 404,
      "contentType": "text/html"
    },
    {
      "ok": false,
      "url": "https://example.com/_emdash/admin/",
      "name": "admin-ui",
      "status": 404,
      "contentType": "text/html"
    },
    {
      "ok": false,
      "url": "https://example.com/_emdash/api/mcp",
      "name": "mcp-endpoint",
      "status": 404,
      "contentType": "text/html"
    },
    {
      "ok": false,
      "url": "https://example.com/.well-known/oauth-protected-resource",
      "name": "oauth-discovery",
      "status": 404,
      "contentType": "text/html"
    }
  ],
  "recommendations": [
    "Add /llms.txt via emdash-plugin-llms-txt.",
    "Enable the EmDash sitemap route.",
    "If you publish skills, expose /skills.json (see https://mondello.dev/skills.json)."
  ]
}

Schema · Response

{
  "type": "object"
}

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