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FastAF vs serp402

Verdict: serp402 or FastAF?

Choose serp402 if

  • You need hotel search, which FastAF does not offer.
  • You want to settle on Solana as well as Base.

Choose FastAF if

  • Your calls are Google search, news, jobs, Flights, Patents, Bing, Amazon, eBay or page scraping, priced per endpoint from $0.003.
  • You want a prepaid API-key option too: packs from $10, without expiry.

serp402 prices

  • Flat $0.05 per call on the search, news, jobs, Amazon, eBay and extract endpoints
  • Company profile: $0.20 per call

Read on serp402.com on . Prices change: check the source before you buy.

FastAF prices

  • Google search: $0.003 per call over x402, or 5 credits with an API key ($2.50 per 1,000 on the $10 pack, $1.33 on the $799 pack)
  • Single page scrape: $0.005 per call over x402, or 1 credit with an API key ($0.50 per 1,000 on the $10 pack, $0.27 on the $799 pack)
  • One-time packs from $10 (20,000 credits) to $799 (3,000,000 credits), without expiry; 500 free credits every month after email verification, reset on the 1st

From FastAF’s pricing code. For x402 the live payment challenge is authoritative. Pricing

FastAF limits

  • x402 settles in USDC on Base only; heavier options (SERP advance_search, rendering with premium proxies, AI extraction) need an API key.
  • Public pages only: login-only, paywalled and private-network targets are refused.

Verified on 2026-10-27. Short answer: serp402 sells a wide catalogue (125 endpoints in its machine-readable listing) at a flat price per call, paid only in USDC over x402. FastAF covers fewer sources but prices each endpoint separately, from $0.003 per call, and also sells prepaid credits for API-key use.

At a glance

FastAF serp402
Catalogue 23 data endpoints 125 endpoints in 19 categories (serp402.com, 2026-10-27)
Google search $0.003 per call $0.05 per call (google-light, catalogue)
Google News $0.005 per call $0.05 per call (google-news)
Google Jobs $0.005 per call $0.05 per call (google-jobs)
Amazon $0.003 per call $0.05 per call (amazon-search, amazon-product)
eBay $0.005 per call $0.05 per call (ebay-search, ebay-product)
Page extraction Scrape $0.005 per call extract $0.05 per call
Google Flights, Google Patents, Bing $0.005 per call each $0.05 per call each (Google Flights, Google Patents, Bing in the catalogue, read 2026-10-28)
Payment x402 USDC on Base, or prepaid credits with an API key x402 USDC on Base or Solana; no API key, account or subscription (serp402.com)
Failed upstream call Never charged Payment cancelled, you are not charged (serp402.com)
MCP Hosted MCP with an API key serp402-mcp with a wallet key and spend ceiling
Beyond FastAF’s scope none listed Hotels, local and travel data and more, in its catalogue

Prices are the priceUsd values in serp402’s public catalogue; its pages also list a company-profile endpoint at $0.2 per call. Response schemas and latency of either service are not compared here: not verified.

Example: Amazon product, FastAF

curl -i 'https://api.fastaf.co/x402/v1/amazon?resource=product&asin=B07FZ8S74R&domain=com'

After payment the body is flat JSON:

{
  "asin": "B07FZ8S74R",
  "title": "Echo Dot smart speaker",
  "price": "$49.99",
  "availability_status": "In Stock",
  "average_rating": 4.5,
  "total_reviews": 1234
}

The example is illustrative; see Amazon API for parameters and the live price.

When to choose serp402

  • You need engines or categories FastAF does not have (hotels, local and travel data). FastAF covers Google Flights, Google Patents and Bing at $0.005 per call via x402.
  • You want Solana as well as Base for settlement.

When to choose FastAF

  • Your calls are Google search, news, jobs, Flights, Patents, Bing, Amazon, eBay or page scraping, where $0.003 to $0.005 per call is below a flat $0.05.
  • You want a prepaid, key-based option as well: packs from $10 (20,000 credits), without expiry.

FAQ

Is FastAF cheaper than serp402? For the endpoints in the table above, yes at the listed prices: $0.003 to $0.005 per call against $0.05 (2026-10-27). serp402 covers many sources FastAF does not.

Which chains does each accept? FastAF: USDC on Base. serp402: USDC on Base or Solana. (Verified 2026-10-27.)

Does either need an API key? Neither for x402. FastAF also offers prepaid credits tied to an API key. (Verified 2026-10-27.)

What happens when a call fails? FastAF does not charge failed requests. serp402 states that the payment is cancelled when the upstream fails. (Verified 2026-10-27.)

Does serp402 offer Amazon and eBay? Yes, amazon-search, amazon-product, ebay-search and ebay-product appear in its catalogue at $0.05 each. (Verified 2026-10-27.)

Sources (read 2026-10-27; Google Flights, Google Patents and Bing catalogue entries read 2026-10-28)

serp402: https://serp402.com ; https://serp402.com/api/v1?all=1 FastAF: https://fastaf.co/llms.txt ; https://api.fastaf.co/openapi.json

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