FastAF
Search, commerce, AI answers, public profiles, video transcripts and any public URL through 15 REST endpoints. One key, clear credit costs and a hard spending cap.
SearchLiveeip155:8453Exactvia facilitator:payAI
EcommerceAmazonProductsPrices
Calls · 30d
1
This endpoint's own trailing-30-day call count, as published by the upstream catalog and snapshotted daily. 4 snapshots so far.
$0.38
Verified settled volume
62 settlements proven x402 by their on-chain EIP-3009 marker.
$0.0010
Listed price
As published in the catalog. Always read the live 402 before paying.
—
Calls · 30d
Upstream's own call count for this endpoint, not ours.
—
Unique payers · 30d
Never called
—
Upstream on-chain volume
Reported by the source catalog.
Paid to
0x05B75e13f071A09A26B50a18Ce5BD02a0755d76FThe wallet the 402 directs payment to. Its whole payment record — every payer, every chain — is on the merchant page.
Asset 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913
Provider
The payTo wallet does not resolve to a registered ERC-8004 agent. That is not a verdict on the service — most of the catalog is unregistered.
Live 402 challenge
Captured by the enrichment pass, not read just now. Prices can change — always read the 402 the endpoint answers with.
{
"docs": "https://fastaf.co/docs/#x402",
"error": {
"code": "payment_required",
"message": "Payment is required for this request."
},
"price": {
"usd": "0.001000",
"asset": "USDC",
"credits": 1,
"network": "eip155:8453"
},
"accepts": [
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2"
},
"payTo": "0x05B75e13f071A09A26B50a18Ce5BD02a0755d76F",
"amount": "1000",
"scheme": "exact",
"network": "eip155:8453",
"mimeType": "application/json",
"resource": "https://api.fastaf.co/x402/v1/amazon",
"description": "Amazon search results or one product by ASIN, as JSON with title, price, rating and availability, on 20+ Amazon domains. 1 credit ($0.001000 USDC) for this request; failed requests are never settled.",
"maxAmountRequired": "1000",
"maxTimeoutSeconds": 300
}
],
"resource": {
"url": "https://api.fastaf.co/x402/v1/amazon",
"tags": [
"ecommerce",
"amazon",
"prices",
"products"
],
"iconUrl": "https://fastaf.co/favicon.svg",
"mimeType": "application/json",
"description": "Amazon search results or one product by ASIN, as JSON with title, price, rating and availability, on 20+ Amazon domains. 1 credit ($0.001000 USDC) for this request; failed requests are never settled.",
"serviceName": "FastAF"
},
"how_to_pay": "Sign the PAYMENT-REQUIRED challenge with an x402 v2 client (for example @x402/fetch) and retry with PAYMENT-SIGNATURE. Settled only if the request succeeds.",
"with_a_key": "Or create an account and get an API key at https://fastaf.co/signup, then use prepaid credits.",
"x402Version": 2
}Accepts
The payment requirements as published to the catalog. Read the live 402 before paying — a price here is a claim, not a quote.
0.001USDC≈ $0.001 USD
on Base · exact scheme
Pay 0.001 USDC on Base to 0x05B7…5d76F. The signed payment is good for 5 minutes.
- Paid to
- 0x05B7…5d76F
- USD Coin contract
- 0x8335…02913
- Payment window
- 5 minutes
- As published
- 1000 smallest units
The catalog’s raw entry
[
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2"
},
"payTo": "0x05B75e13f071A09A26B50a18Ce5BD02a0755d76F",
"amount": "1000",
"scheme": "exact",
"network": "eip155:8453",
"maxTimeoutSeconds": 300
}
]Extensions
{
"bazaar": {
"info": {
"input": {
"type": "http",
"method": "GET",
"queryParams": {
"asin": "B08N5WRWNW",
"domain": "com",
"resource": "product"
}
},
"output": {
"type": "json",
"example": {
"asin": "B08N5WRWNW",
"price": "$49.99",
"title": "Echo Dot (4th Gen) smart speaker",
"total_reviews": 1234,
"average_rating": 4.5,
"availability_status": "In Stock"
}
}
},
"schema": {
"type": "object",
"$schema": "https://json-schema.org/draft/2020-12/schema",
"required": [
"input"
],
"properties": {
"input": {
"type": "object",
"required": [
"type",
"method"
],
"properties": {
"type": {
"type": "string",
"const": "http"
},
"method": {
"enum": [
"GET"
],
"type": "string"
},
"queryParams": {
"type": "object",
"anyOf": [
{
"required": [
"query"
]
},
{
"required": [
"resource",
"asin"
],
"properties": {
"resource": {
"const": "product"
}
}
},
{
"required": [
"resource",
"asin"
],
"properties": {
"resource": {
"const": "offers"
}
}
},
{
"required": [
"resource"
],
"properties": {
"resource": {
"const": "bestsellers"
}
}
}
],
"properties": {
"url": {
"type": "string",
"maxLength": 8192,
"description": "Full HTTP(S) Amazon reviews URL, an alternative to ASIN for reviews. Reviews are unavailable; this option is rejected without charge. No default. No credits charged for rejected requests."
},
"asin": {
"type": "string",
"maxLength": 8192,
"description": "Amazon product identifier, usually 10 letters/digits, e.g. B08N5WRWNW. Required for product and offers; not used for search/bestsellers. No default. No option surcharge; search/product cost 1 credit, offers/bestsellers 5 credits per request."
},
"page": {
"type": "integer",
"maximum": 100,
"minimum": 1,
"description": "One-based page number, default 1. Search accepts 1-100; bestsellers accepts 1-2 (set full_list=false for a single page). Each request is billed separately. No option surcharge; search/product cost 1 credit, offers/bestsellers 5 credits per request."
},
"type": {
"enum": [
"bestsellers",
"new_releases",
"movers_and_shakers",
"most_wished_for",
"most_gifted"
],
"type": "string",
"description": "Ranked list for bestsellers: bestsellers (default), new_releases, movers_and_shakers, most_wished_for or most_gifted. No option surcharge; search/product cost 1 credit, offers/bestsellers 5 credits per request."
},
"query": {
"type": "string",
"maxLength": 8192,
"description": "Required product search text for resource=search, e.g. wireless headphones. Not valid for other resources; no default. No option surcharge; search/product cost 1 credit, offers/bestsellers 5 credits per request."
},
"domain": {
"type": "string",
"maxLength": 8192,
"description": "Amazon domain suffix, not a hostname: com, co.uk, de, in, etc.; default com. No option surcharge; search/product cost 1 credit, offers/bestsellers 5 credits per request."
},
"country": {
"type": "string",
"maxLength": 8192,
"description": "Two-letter marketplace/proxy country code, e.g. us, gb or de; default us. Unlike scrape.country, this has no FastAF surcharge. No option surcharge; search/product cost 1 credit, offers/bestsellers 5 credits per request."
},
"premium": {
"type": "boolean",
"description": "Use premium proxies for resource=search; true/false, default false. Not valid for product/offers/bestsellers; no FastAF surcharge. No option surcharge; search/product cost 1 credit, offers/bestsellers 5 credits per request."
},
"sort_by": {
"enum": [
"helpful",
"recent"
],
"type": "string",
"description": "Review order: helpful or recent. Reviews are currently unavailable, so requests using this option are rejected without charge; no FastAF default. No credits charged for rejected requests."
},
"language": {
"type": "string",
"maxLength": 8192,
"description": "Product-data language code, e.g. en, de or fr; omitted: marketplace default. Valid for search, product and bestsellers. No option surcharge; search/product cost 1 credit, offers/bestsellers 5 credits per request."
},
"resource": {
"enum": [
"search",
"product",
"offers",
"bestsellers"
],
"type": "string",
"default": "search",
"description": "Amazon operation: search (default), product, offers or bestsellers. Reviews are not sold. No option surcharge; search/product cost 1 credit, offers/bestsellers 5 credits per request."
},
"full_list": {
"type": "boolean",
"description": "For bestsellers, true returns the combined ranked list (upstream default true); false returns only page. Boolean; no FastAF surcharge for the full list. No option surcharge; search/product cost 1 credit, offers/bestsellers 5 credits per request."
},
"media_type": {
"enum": [
"all_contents",
"media_reviews_only"
],
"type": "string",
"description": "Review attachment filter: all_contents or media_reviews_only. Reviews unavailable; rejected without charge; no FastAF default. No credits charged for rejected requests."
},
"category_id": {
"type": "string",
"maxLength": 8192,
"description": "Bestseller category slug, node ID or slug/node pair, e.g. kitchen, 289668 or kitchen/289668. Omit for all departments; bestsellers only. No option surcharge; search/product cost 1 credit, offers/bestsellers 5 credits per request."
},
"format_type": {
"enum": [
"all_formats",
"current_format"
],
"type": "string",
"description": "Review product-variant filter: all_formats or current_format. Reviews unavailable; rejected without charge; no FastAF default. No credits charged for rejected requests."
},
"postal_code": {
"type": "string",
"maxLength": 8192,
"description": "Delivery postal/ZIP code, e.g. 10001, to localize availability and price. Valid for search/product/offers; omitted: source-default delivery location. No option surcharge; search/product cost 1 credit, offers/bestsellers 5 credits per request."
},
"reviewer_type": {
"enum": [
"all_reviews",
"avp_only_reviews"
],
"type": "string",
"description": "Review author filter: all_reviews or avp_only_reviews (verified purchases). Reviews unavailable; rejected without charge; no FastAF default. No credits charged for rejected requests."
},
"filter_by_star": {
"enum": [
"all_stars",
"five_star",
"four_star",
"three_star",
"two_star",
"one_star",
"positive",
"critical"
],
"type": "string",
"description": "Review rating filter: all_stars, five_star, four_star, three_star, two_star, one_star, positive or critical. Reviews unavailable; rejected without charge; no FastAF default. No credits charged for rejected requests."
}
},
"additionalProperties": false
}
},
"additionalProperties": false
},
"output": {
"type": "object",
"required": [
"type"
],
"properties": {
"type": {
"type": "string"
},
"example": {
"type": "object",
"properties": {
"asin": {
"type": "string"
},
"price": {
"type": "string"
},
"title": {
"type": "string"
},
"total_reviews": {
"type": "number"
},
"average_rating": {
"type": "number"
},
"availability_status": {
"type": "string"
}
},
"additionalProperties": true
}
}
}
}
},
"routeTemplate": "/x402/v1/amazon"
}
}Provenance
- Seen in the source catalog
- 2026-10-25 11:57Z
- Last indexed by Roundhouse
- 2026-10-26 12:46Z
- Last enriched (probe, favicon, geo)
- 2026-10-23 23:15Z
- x402 version
- 2
- Max timeout
- 300s
- Liveness probe
- HTTP 402
Hand this page to an agent
Copy the prompt and paste it into Claude, an MCP client or your own agent — it will vet this service and call it over the free read API. No key, no account.
GET api.roundhouseai.io/v0/endpoints
This endpoint's own trailing-30-day call count, as published by the upstream catalog and snapshotted daily. 4 snapshots so far. Verified volume counts only settlements with an on-chain EIP-3009 marker.
Show the promptHide the prompt
Using Roundhouse, look up the x402 service FastAF and tell me whether it is worth paying: what a call costs, whether the endpoint answered when last probed, and what its payment record actually shows. curl -s 'https://api.roundhouseai.io/v0/endpoints?q=FastAF' curl -s 'https://api.roundhouseai.io/v0/merchants/<the payTo wallet returned above>' Then call it: read the price from the live 402 at https://api.fastaf.co/x402/v1/amazon, never from a cached figure, and pay with an x402 client. The /v0 API needs an API key (`authorization: Bearer rh_live_…`) on everything except /v0/unified* and /v0/endpoints. Either pay over x402 (mint a personal key for $0.01 at GET https://api.roundhouseai.io/v0/test/x402), or ask me for an organization key, which I create at https://roundhouseai.io/dashboard/connections. If you have neither, ask before going further. If you do not have Roundhouse tools or skills installed, read https://roundhouseai.io/skill.md first — it is the whole procedure.