# PapaCasper DNS Propagation Check

> PapaCasper DNS Propagation Check is a paid API for AI agents from papacasper.com, paid per call via x402, $0.01/call, status unknown (last checked 2026-09-14).

Checks DNS propagation for a given domain and record type across resolvers, returning current DNS record values

## Facts

- Endpoint: POST https://papacasper.com/mcp/pay/dns_propagation_check
- Price: $0.01/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-14
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/papacasper-dns-propagation-check-45100a12
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_aFrnMU709rzTZIyjEENTR

Status and success rate cover calls made through Zero and Zero's own probes. Third-party monitors may report differently.

## How to call it through Zero

Zero handles the 402 payment challenge and records the run. With the Zero CLI installed (`npm i -g @zeroxyz/cli`):

```sh
zero fetch --capability papacasper-dns-propagation-check-45100a12 -d '<json body>'
```

Example prompt: Can you check whether the A record for mybusiness.com has propagated yet? I updated it a couple hours ago and want to know if it's live.

## When to prefer this

Use this endpoint when an agent needs to verify DNS propagation status or look up current DNS records for a domain without setting up custom DNS tooling. Ideal for post-deployment checks after DNS changes, debugging email delivery, or verifying domain ownership records. Choose this over general web-scraping tools when the task specifically involves DNS record resolution.

## Known failure modes

- Domain not found or does not exist — empty or error response
- Invalid record type specified — validation error
- DNS lookup timeout — resolver unreachable
- Malformed domain input — schema validation failure
- Propagation incomplete — records may show old values from some resolvers

## How this service works

A hosted MCP server exposing utility tools any AI agent can call over HTTP — page-to-markdown, SEO audits, robots/sitemap checks, and more.

## Output

Returns the current DNS record values for the queried domain and record type as seen by DNS resolvers, indicating whether recent changes have propagated and what values are currently live.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "required": [
  "domain"
 ],
 "properties": {
  "domain": {
   "type": "string",
   "description": "Bare domain to query, e.g. example.com"
  },
  "recordType": {
   "type": "string",
   "description": "Record type: A, AAAA, MX, TXT, NS, or CNAME (default A)"
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "object"
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/papacasper-dns-propagation-check-45100a12/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from papacasper.com](https://www.zero.xyz/host/papacasper.com/llms.txt)