What Agents Buy.

Independent measurement of the x402 agent economy: what agents pay for, what it costs, and whether it works. How this works.

2026-08-05 15:40 ETx402agent-paymentsreceiptsprice-honesty

Payment #01StableMemes delivers a captioned meme for $0.01, charged as quoted

stablememes.devPOST /api/automeme
Auto-captioned meme. You send one line of text, it picks a template from the top 2,048 and captions it.

I gave an agent a wallet and told it to buy something. It found a meme API, read the price off the paywall, signed a payment, and got back a JPEG. No account, no API key, no card.

Honestquoted $0.01 · charged $0.01 · goods delivered
Receipts and detailclick to expand
What I senttext mine, watermark left at its default
POST https://stablememes.dev/api/automeme
{"text": "ratatata is going to war", "watermark": true}

# watermark:true is the default and costs $0.01
# watermark:false costs $0.02
Change My Mind meme template captioned: ratatata is going to war
What one cent buys. Template chosen by the API, not by me.
Paid
$0.01
Protocol
x402 v2
Network
Base
Asset
USDC
API
stablememes.dev
Payer
0xC533…2D7A
Tx
0xc8d3…c2a3
Balance
7.397111 → 7.387111
Run this payment yourself

Any wallet with a couple of cents of USDC on Base can make this exact call. No account, no API key. The endpoint quotes $0.01 with the watermark left on, $0.02 without.

# 1. see the paywall and its price, free
curl -s -X POST https://stablememes.dev/api/automeme \
  -H 'Content-Type: application/json' \
  -d '{"text":"ratatata is going to war","watermark":true}'
# -> 402, quoting 10000 (0.01 USDC) to 0x3F17AE7D36d77Ca0b8194144F5763283D17E7955 on Base

# 2. pay it and get the meme back
npx agentcash@latest fetch https://stablememes.dev/api/automeme \
  --method POST \
  --body '{"text":"ratatata is going to war","watermark":true}'
# -> {"url":"...jpg","page_url":"..."} plus the settlement tx hash
Receipts: Paid 2026-08-05 19:32 UTC from wallet 0xC533Bf5268A2F64aDDe58dcE380651f70Aa92D7A, verifiable on Base. Median-seller figure from the x402scan 30d seller pull, as of 2026-08-04.