AI agents need to buy things.
Now they can.ИИ-агентам нужно что-то покупать.
Теперь они могут.
A pay-per-use marketplace for SMS numbers, mail inboxes, proxies, and stealth browsers — purchased directly by your agent, settled in stablecoin, no human in the loop.Маркетплейс с поминутной оплатой: SMS-номера, ящики, прокси и stealth-браузеры — покупает сам агент, оплата в стейблкоине, без участия человека.
Six things an agent might need today.Шесть вещей, которые могут понадобиться агенту сегодня.
Each SKU is a single HTTP endpoint. Your agent calls it, the response includes a 402 with a price, the agent pays in USDC and continues.Каждый SKU — это один HTTP-эндпоинт. Агент его вызывает, в ответ приходит 402 с ценой, агент платит в USDC и продолжает.
Identity Bundle
One geo-coordinated package: SMS, mail, residential proxy and stealth browser, all from the same metro and ASN.Один геокоординированный пакет: SMS, ящик, резидентный прокси и stealth-браузер — один город, один ASN, одна локаль.
SMS OTP Number
Disposable inbound number. Receives one-time codes, returns them as JSON.Одноразовый входящий номер. Принимает OTP-коды, возвращает их в JSON.
Mail Inbox
Throwaway address with 24h retention. Polled or webhook delivery.Одноразовый адрес со сроком хранения 24 часа. Поллинг или вебхук.
Residential Proxy
Sticky residential session. 200+ regions, ASN-pinned on request.Sticky-сессия резидентного прокси. 200+ регионов, ASN по запросу.
Stealth Browser
Chromium with realistic fingerprint. CDP endpoint returned. 1h ceiling.Chromium с реалистичным fingerprint. Возвращает CDP-эндпоинт. До 1 часа.
Captcha Solve
hCaptcha, reCaptcha v2/v3, Cloudflare Turnstile. Median 2.4s.hCaptcha, reCaptcha v2/v3, Cloudflare Turnstile. Медиана 2.4 сек.
Four HTTP calls. No keys. No SDK.Четыре HTTP-запроса. Без ключей. Без SDK.
The x402 protocol embeds payment into the request itself. Your agent reads the price from the response and pays in the next request — like a vending machine that speaks JSON.Протокол x402 встраивает оплату прямо в запрос. Агент читает цену из ответа и платит в следующем запросе — как торговый автомат, говорящий на JSON.
Plain HTTP. No auth. The agent just asks for a resource.
Обычный HTTP. Без авторизации. Агент просто запрашивает ресурс.
POST /v1/sms/otp HTTP/1.1 Host: api.agent402stock.xyz Content-Type: application/json { "country": "US", "service": "any" }
Price, asset, chain, and a one-shot quote. Standard x402 envelope.
Цена, актив, сеть и одноразовая котировка. Стандартный конверт x402.
HTTP/1.1 402 Payment Required Content-Type: application/json { "price": "0.10", "asset": "USDC", "chain": "base", "quote": "qz_8f3a…" }
Same request, plus an X-Payment header containing a signed USDC transfer.
Тот же запрос плюс заголовок X-Payment с подписанным переводом USDC.
POST /v1/sms/otp HTTP/1.1 X-Payment: base:0x4a…/* signed */ X-Quote: qz_8f3a… { "country": "US", "service": "any" }
Settlement is confirmed; resource handle returned. Agent moves on.
Оплата подтверждена, выдан хэндл ресурса. Агент идёт дальше.
HTTP/1.1 200 OK X-Settlement: 0x9c… { "number": "+14155551207", "poll": "/v1/sms/otp/qz_8f3a", "ttl": 600 }
Indexable, parseable, callable.Индексируется, парсится, вызывается.
Every surface a non-human buyer needs. Crawled by GPTBot, ClaudeBot, Google-Extended, x402-discoverer, AP2Bot.Все интерфейсы, нужные нечеловеческому покупателю. Индексируется GPTBot, ClaudeBot, Google-Extended, x402-discoverer, AP2Bot.
curl · runnable# 1. ask curl -i https://api.agent402stock.xyz/v1/sms/otp \ -X POST -d '{"country":"US"}' # < 402 Payment Required · price 0.10 USDC on base # 2. pay (signed USDC transfer in header) and retry curl -i https://api.agent402stock.xyz/v1/sms/otp \ -X POST -d '{"country":"US"}' \ -H "X-Payment: base:0x4a…" \ -H "X-Quote: qz_8f3a…" # > 200 OK · {"number":"+14155551207","poll":"/v1/sms/otp/qz_8f3a","ttl":600}
Frequently asked questions
What is agentstock?
agentstock is a pay-per-use HTTP marketplace where AI agents purchase operational consumables — SMS OTP numbers, disposable email inboxes, residential proxies, stealth browser sessions, captcha solves, and identity bundles — by settling USDC on Base via the x402 protocol. There is no signup, no API keys, and no dashboard. The agent itself pays on the first 402 response.
How does an AI agent pay without signing up?
The agent sends a normal HTTP request. The server replies HTTP 402 Payment Required with an x402 manifest specifying the asset (USDC), network (Base), payTo address, and amount. The agent's wallet signs a USDC transfer and the agent replays the request with an X-Payment header. The resource is returned in the response.
What is the x402 protocol?
x402 is an open standard from Coinbase that revives the HTTP 402 status code for machine-to-machine micropayments. The server returns 402 with payment terms in JSON, the client signs a stablecoin transfer, and the server delivers the resource. agentstock implements x402 natively for every paid endpoint.
Why USDC on Base?
Base offers sub-second settlement and fees under one cent, which makes $0.02 captcha solves and $0.04 mailboxes economically viable. USDC is fully reserve-backed and works with every major agent wallet (Coinbase AgentKit, Crossmint, Skyfire). Median settlement on agentstock is under 400ms.
What is a residential proxy session?
A residential proxy session is a sticky exit IP from a real consumer ISP, targetable by country, city, or ASN. agentstock provides 200+ regions backed by tier-1 pools (Bright Data, Decodo, IPRoyal). Price is $0.30 per GB. Use it when the target site blocks datacenter IPs.
What is the One-Shot Identity Bundle?
Identity Bundle is a single x402 call that returns four geo-coordinated resources: an SMS-receivable number, an email inbox, a residential proxy session, and a stealth browser session — all aligned to the same metro, ASN, and locale. Price is $1.20. Designed to pass typical bot-fraud checks in one transaction.
How do I tell agentstock what is missing from the catalog?
POST a JSON body to /api/v1/feedback. The endpoint is free, requires no auth, and accepts {task, needed, workaround, max_price_usd}. agentstock builds its roadmap directly from agent feedback — the most-requested missing consumables ship first.
Is agentstock x402-discoverable?
Yes. agentstock exposes /.well-known/x402.json (machine-readable manifest of every paid endpoint), /.well-known/agent.json (capability manifest), /.well-known/openapi.yaml (OpenAPI 3.1), and /llms.txt (LLM-friendly catalog). All standard agent crawlers (GPTBot, ClaudeBot, PerplexityBot, x402-discoverer) are whitelisted in robots.txt.
How is agentstock different from Bright Data, Browserbase, or Twilio?
Bright Data, Browserbase, and Twilio require human onboarding — KYB, credit card, dashboard, minimum invoice — which an autonomous agent cannot complete. agentstock has no signup, no API key, and no minimum spend. The agent's wallet pays in USDC on its first 402 response. agentstock is the only x402-native marketplace that aggregates all six consumables an agent needs in one place.
Which AI agent frameworks work with agentstock?
Any framework that can make an HTTP request and sign a USDC transfer. Tested with Coinbase AgentKit (native x402), Browser-Use, Skyvern, Manus, AutoGPT, LangChain, and OpenAI Agents SDK. The agent does not need x402 client code — agentstock returns plain JSON in its 402 body, so any HTTP client can read the payment terms.
How fast is settlement on agentstock?
Median settlement is under 400ms, end-to-end. Base L2 confirms USDC transfers in roughly 200ms; agentstock's verifier polls on-chain receipts and admits the request as soon as the transfer is included in a block. There is no off-chain credit, escrow, or reconciliation delay.
What pricing does agentstock charge?
Captcha solve costs $0.02. Mail inbox costs $0.04. SMS OTP number costs $0.10. Residential proxy costs $0.30 per GB. Stealth browser session costs $0.40. The Identity Bundle (SMS + mail + proxy + browser, geo-coordinated) costs $1.20 per bundle. All prices are in USDC on Base, settled per request.
Why do AI agents need residential proxies and stealth browsers?
Most consumer-facing websites block datacenter IPs, headless Chromium fingerprints, and unverified phone numbers. To complete a real task — placing an order, registering an account, scraping an authenticated page — an agent needs a residential exit IP, a realistic browser fingerprint, and a phone number that can receive SMS. agentstock sells exactly these consumables on a pay-per-call basis.