PRICE·PILOT

Things your agent can ask [4]

• ? Cheapest Nike Killshot 2 Sail/Lucid Green men's size 11.5 copy
• ? Cheapest Sony WH-1000XM5 headphones in black copy
• ? Cheapest Hoka Clifton 9 women's size 8 copy
• ? Cheapest LEGO 10497 Galaxy Explorer set copy

Tools under the hood [verify, store, report]

After PricePilot is paid, four things happen before Hermes hears back: Nimble pulls live SERP + PDP variant data, Verify rejects near-miss variants, ClickHouse logs the observation, and Senso writes a cited report. The receipt that lands in Telegram is the cheapest verified buyable offer plus the IDs to look it up later.

How Hermes uses it [agent flow]

Here's the step-by-step from a shopper's first text to the final verified receipt.

What happens on a call [4 steps]

• 01. You send a product spec. Brand, model, variant fields. No URLs to guess, no SKUs to look up.
• 02. We resolve the exact variant on Amazon and Walmart. SERP → parent PDP → child PDP on each, in parallel, so the offers match your spec — not a near-miss.
• 03. We pull the live offer. Real price, real stock, real seller from the PDP at request time. Not a cached SERP estimate.
• 04. You get one JSON response. The cheapest verified offer plus a stable product_id.

Live retailer comparison [Nike Killshot 2 — verified offers]

This is what your buyer sees — not abstract JSON, but real retailer cards with live prices, stock status, and the winner highlighted.

Checked 2026-05-23

Nike Killshot 2 — Sail/Lucid Green

Men's · US 11.5

In stock

$94.99

View on Amazon

★ CHEAPEST

Nike Killshot 2 — Sail/Lucid Green

Men's · US 11.5

In stock

$89.97

View on Walmart

Powered by PricePilot · Checked 2026-05-23 15:42 UTC

Sample receipt [POST /find_cheapest]

— Request —

POST /find_cheapest
{
  "brand": "Nike",
  "model": "Killshot 2",
  "color": "Sail/Lucid Green",
  "size": { "system": "US", "gender": "men", "value": 11.5 },
  "condition": "new",
  "postal_code": "10001"
}

— Response —

— Raw JSON —

{
  "product_id": "nike-killshot-2",
  "best": {
    "source": "walmart",
    "price": 89.97,
    "currency": "USD",
    "in_stock": true,
    "seller": "Walmart",
    "url": "https://www.walmart.com/ip/XXXXXXXX",
    "variant": { "color": "Sail/Lucid Green", "size": "11.5" }
  },
  "all_offers": [
    { "source": "walmart", "price": 89.97, "in_stock": true },
    { "source": "amazon",  "price": 94.99, "in_stock": true }
  ],
  "missing_sources": ["target"],
  "checked_at": "2026-05-23T15:42:11Z"
}

Make your first call [3 steps]

• 01. Pick a wallet your agent can pay from. AgentCash is fastest — ships USDC and signs payments. Or use Base / Tempo directly.
• 02. POST a product spec to /find_cheapest. First request gets a 402 with the price ($0.05). Re-send with the payment header to receive the offer.
• 03. Read the cheapest offer. The best field is the verified buyable result. Hand it to your shopper, log it, or check again tomorrow.

$ curl -X POST https://pricepilot-sepia.vercel.app/find_cheapest \
    -H "Content-Type: application/json" \
    -d '{"brand":"Nike","model":"Killshot 2",
        "size":{"system":"US","gender":"men","value":11.5}}'

How to pay [3 options]

$ npx agentcash onboard
$ npx agentcash try https://pricepilot-sepia.vercel.app/find_cheapest

import { withPaymentInterceptor } from 'x402-fetch'
const fetchWithPay = withPaymentInterceptor(fetch, account)
await fetchWithPay('https://pricepilot-sepia.vercel.app/find_cheapest', {
  method: 'POST',
  headers: { 'Content-Type': 'application/json' },
  body: JSON.stringify(spec),
})

import { Mppx, tempo } from 'mppx/client'
Mppx.create({ methods: [tempo({ account: tempoWallet })] })
await fetch('https://pricepilot-sepia.vercel.app/find_cheapest', {
  method: 'POST',
  headers: { 'Content-Type': 'application/json' },
  body: JSON.stringify(spec),
})

Resources

• OpenAPI/openapi.json
• Skill/skill.md
• LLMs/llms.txt
• Sourcegithub.com/mmurrs/agenticenghack
• x402x402scan.com
• MPPmppscan.com