x402 merchant
x402 inference gateway$0.001 / callagent-production-1daa.up.railway.app
InferenceLlmOpenaiChat-completionsGpt-5.4

LLM inference API for AI agents: OpenAI-compatible chat completions paid per request in USDC on Base. No account or API key. Summarize, classify, extract, translate, generate and chat with gpt-5.4-nano, gpt-5.4-mini, gpt-5.4, gpt-5.5, gpt-4o-mini and more. Misses billed at cost + 4% on actual token usage (upto scheme); deterministic repeats (temperature 0) are cache hits billed at 55% of provider price — loops get cheaper automatically. From $0.001/call, standard OpenAI POST format.

MerchantReport

0x77c9…d93c

0x77c947f8534e5dc79b4a41280d597ec210bcd93cExplorer
$0.25
Inbound volume
1
Settlements
1
Distinct counterparties

Chains: Base (1)

Activity

MarAprMayJunJulAug
LessMore

One square per day; click a day to see its settlements in the ledger.

Frequent counterparties

CounterpartySent to themReceived from themSettlementsLast
0xb8e5…9b7e$0.00$0.25135d agoGraph

Ranked by settled amount over this wallet's recent settlement window — who it normally transacts with.

Data quality

100% of observed volume is with a single counterparty.

Organic volume $0.25 of $0.25 total.

Recent activity

Payer PayeeChainAmountx402RouteAgeTxn hash
0xb8e5…9b7e0x77c9…d93cBase$0.25100%Route unknown35d ago0x6ae7a3…4fc526

Hand this page to an agent

Copy the prompt and paste it into Claude, an MCP client or your own agent — it will check 0x77c9…d93c's payment record before paying it over the free read API. No key, no account.

GET www.roundhouse.studio/api/v0/merchants/0x77c947f8534e5dc79b4a41280d597ec210bcd93c

Open skill.md
Show the prompt
Using Roundhouse, tell me whether this x402 merchant is worth paying: how many distinct
agents have paid it, how recently, and for what.

  Merchant wallet: 0x77c947f8534e5dc79b4a41280d597ec210bcd93c

curl -s 'https://www.roundhouse.studio/api/v0/merchants/0x77c947f8534e5dc79b4a41280d597ec210bcd93c'
curl -s 'https://www.roundhouse.studio/api/v0/entities/0x77c947f8534e5dc79b4a41280d597ec210bcd93c/settlements?limit=50'

If you do not have Roundhouse tools or skills installed, read
https://www.roundhouse.studio/skill.md first — it is the whole procedure, and it needs no key.