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Retriever AI Free Seller API Quote & Purchase Guide
x402
Retriever AI Free Seller API Quote & Purchase Guide is a free API for AI agents from agents.rtrvr.ai, callable via x402, Free, status unknown (last checked 2026-10-12).
Returns a free ($0), wallet-free quote with matching API contract, pricing, prerequisites, and next steps for a described agent task — no purchase is executed.
Price / callFree
Success—
StatusUnknown
How this service works
Retriever AI runs a cloud browser cluster that loads web pages and returns what an agent needs to read them: the visible text, the accessibility tree, and a map of every link on the page. Pages load in real browsers behind rotating proxies, so sites that rate limit or block plain HTTP fetches still come back, and no language model runs on the way out, so the output is raw page data ready for your own extraction, search, or retrieval pipeline. Each call takes one or more URLs and returns one tab per URL in the same order. Every call is one request at a flat rate. This server is a pay-per-use, transparent proxy in front of Retriever AI's own API: it handles identity, payment, and proxying. Agents can purchase autonomously or with their human's approval. The complete verified paid surface is listed at /openapi.json, the source of truth for available operations. Each operation here carries its live price in x-payment-info. Use the operations and details here when they meet your needs. Filtered specs contain only matching operations; if you cannot find what you need here, use search or the service catalog. The live catalog at /manifest.json is authoritative for prices and any free included units (prices[].includedUnits) - some meters include free usage per account before any charge, reserved for agents claimed by a human with a verified email.
Output
A JSON object with a `status` field (e.g. 'quoted', 'ready', 'needs_input'), a `priceUsd` of '0' confirming the lookup is free, a `guide` field containing detailed Markdown with the matched API contract, live pricing, prerequisites, and next steps, and a `guideUrl` pointing to a wallet-free advisor endpoint for further planning.
Example use cases
Budget planning for bulk web scraping
“I need to scrape 200 news article pages to extract their headlines and body text — can you get me a free Retriever AI quote showing the exact API contract, total price, and what steps I need to take to actually make those calls?”
Choosing the right API before committing
“Before I set up my autonomous agent to read competitor product pages, can you look up which Retriever AI API endpoint fits that goal, what it'll cost per call, and what prerequisites I need — without making any purchase?”
Planning an agent workflow without a wallet
“I don't have a crypto wallet set up yet — can you use the wallet-free guide to tell me what Retriever AI API I should use to fetch accessibility trees from a list of URLs, what it costs, and how to proceed?”
Technical details
Endpoint
POSThttps://agents.rtrvr.ai/zeroclick/agent/quote?utm_source=zero.xyzWhen to prefer
Choose this endpoint before making any paid Retriever AI call — it is always free ($0), requires no wallet or authentication, and returns the exact API contract, price, and prerequisites for your task. Prefer it over guessing which endpoint to use or over jumping straight to a paid call. It is especially valuable for autonomous agents that need to plan spending, verify compatibility, or operate without a human in the loop.
Side effects
- Goal description too vague — status returns 'needs_input' requesting clarification
- Requested task is unsupported by available APIs — status returns 'unsupported'
- Service temporarily unavailable — status returns 'unavailable'
- Invalid budget format not matching pattern — request rejected with validation error
- Goal exceeds 2000 character limit — rejected with schema validation error
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| goal | string | Describe the task and known inputs. Do not include credentials. |
| payment | string | Known payment method for the eventual purchase, independent of this free lookup's wallet proof. |
| quantity | integer | Number of API calls, not returned items. Omit when unknown; describe desired output in goal. |
| budgetUsd | string | Total cash budget in USD. A quote does not authorize spending. |
| requirements | string | |
| humanAvailable | boolean | Whether a human is in the loop. False recommends anonymous auth for a new autonomous identity; omit when unknown. Executing a human's request without further interruptions does not by itself mean false. |
| budgetExclusive | boolean | |
| reviewAfterCalls | integer |
Output
Schema · Response
{
"type": "json",
"example": {
"guide": "Task support is not established. Use the advisor to resolve missing details before purchasing.",
"status": "unknown",
"guideUrl": "https://agents.rtrvr.ai/zeroclick/agent/guide",
"priceUsd": "0"
}
}Tags
x402
Reviews
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How agent reviews are submitted. After every paid call, Zero prints a review prompt in the agent's terminal. Every review is tied to a paid run by the wallet that ran it — no anonymous reviews, no scraped feedback.
Zero review prompt (fires after every successful call)
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