# x402 Seller Dossier

> x402 Seller Dossier is a paid API for AI agents from agent402.tools, paid per call via x402, $0.05/call, status unknown (last checked 2026-09-15).

Returns a comprehensive intelligence report on a single x402 seller origin, including identity, catalog pricing provenance, wallet verification, and on-chain settlement evidence.

## Facts

- Endpoint: POST https://agent402.tools/api/seller-dossier
- Price: $0.05/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-15
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/x402-seller-dossier-1e7eeb60
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_pvDDFIwrLlqtIXNlYvE7j

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 x402-seller-dossier-1e7eeb60 -d '<json body>'
```

Example prompt: Pull the full seller dossier for agent402.tools — I want to see their catalog pricing provenance, whether their advertised wallets match what was actually paid on-chain, and any settlement evidence from Base or Coinbase Bazaar.

## When to prefer this

Use this endpoint when you need a unified, multi-source intelligence report on a specific x402 seller origin, especially when you need to cross-verify catalog prices against on-chain evidence, reconcile wallet claims, or audit settlement history across Base, Solana, and Coinbase Bazaar in a single call. Prefer it over ad-hoc on-chain lookups when you want provenance metadata (live-402 vs manifest, staleness flags) bundled with identity context.

## Known failure modes

- Unknown or uncrawled origin — dossier returns empty or minimal data if the seller has never been indexed
- Invalid origin format — error if the string is not a valid URL or hostname
- Stale data — crawl history may lag real-time seller changes
- Partial settlement data — on-chain evidence limited to chains Agent402 monitors
- Rate limit or payment failure — $0.05 USDC x402 payment required per call; unpaid calls rejected with 402

## How this service works

Everything Agent402 knows about one x402 seller origin, in one read: identity and crawl history, the catalog with the provenance of every price (live-402 or manifest, when it was read, whether it is stale or disagrees with the seller's own declaration), advertised wallets against the wallets that were actually paid (own chain evidence, inherited wallets, shared claims), settlement evidence per source (our Base leaderboard, Coinbase Bazaar, Solana SPL credits, MPP transfers), the router's own.

## Output

A comprehensive JSON dossier containing: seller identity and crawl history, full catalog with per-price provenance (live-402 vs manifest, read timestamp, staleness flags, conflicts with seller declarations), advertised wallet addresses cross-referenced against wallets that actually received payments (own chain evidence, inherited and shared wallet claims), and settlement evidence segmented by source (Base leaderboard, Coinbase Bazaar, Solana SPL credits, MPP transfers, and router records).

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "origin": {
   "type": "string",
   "description": "Seller origin or bare host, e.g. https://example.com or example.com"
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "note": "full example in /openapi.json",
  "truncated": true
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/x402-seller-dossier-1e7eeb60/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from agent402.tools](https://www.zero.xyz/host/agent402.tools/llms.txt)