A SerpApi alternative with no monthly subscription

When SerpApi suits you better

SerpApi covers far more engines and very detailed result fields. If you need Baidu, Amazon or Yahoo results, or legal shield guarantees, stay with SerpApi.

Migrating

Replace GET serpapi.com/search?q=... with POST https://x402serps.com/api/v1/search {"q": ...}. Use gl/hl for country and language, num for result count and page for pagination. Results are in results[] with title, url and snippet. n8n users can use our MCP server instead of the SerpApi node: see the n8n guide.

How it works

SerpApi returns very detailed result pages with many engine-specific blocks. Many AI agents only need the organic results: a ranked list of titles, URLs and snippets. x402serps focuses on that compact shape, which keeps prompts small and parsing simple.

Each endpoint is a single POST. Web search, news, images, places, shopping, scholar and videos are separate endpoints with the same request style, so one helper function covers all of them. Results come from a third-party search provider and are normalised before they reach you.

Payment is per call. x402 lets an agent pay $0.004 in USDC on Base or Solana with no account, which suits autonomous agents that cannot complete a signup or hold a subscription.

Request and response: /api/v1/search

POST /api/v1/search costs $0.004 per call. Send the parameters as a JSON body.

curl -X POST https://x402serps.com/api/v1/search \
  -H "content-type: application/json" \
  -H "X-Trial: 1" \
  -d '{"q":"x402 protocol","num":10,"gl":"us"}'

Example response (values shortened; field names are exactly what the API returns):

{
  "query": "x402 protocol",
  "provider": "primary",
  "results": [
    {
      "position": 1,
      "title": "x402",
      "url": "https://x402.org/",
      "snippet": "x402 is an open payment standard that lets clients pay for APIs and content over HTTP..."
    },
    {
      "position": 2,
      "title": "coinbase/x402: A payments protocol for the internet",
      "url": "https://github.com/coinbase/x402",
      "snippet": "x402 is a chain-agnostic protocol built around the HTTP 402 Payment Required status code..."
    }
  ]
}

Request and response: /api/v1/news

POST /api/v1/news costs $0.004 per call. Send the parameters as a JSON body.

curl -X POST https://x402serps.com/api/v1/news \
  -H "content-type: application/json" \
  -H "X-Trial: 1" \
  -d '{"q":"stablecoin regulation","freshness":"week","num":10}'

Example response (values shortened; field names are exactly what the API returns):

{
  "query": "stablecoin regulation",
  "provider": "primary",
  "results": [
    {
      "position": 1,
      "title": "Regulators publish new stablecoin guidance",
      "url": "https://example-news.com/stablecoins",
      "snippet": "Officials set out reserve and disclosure rules for dollar-backed tokens...",
      "source": "Example News",
      "date": "2 days ago"
    }
  ]
}

Use cases

• LLM tool calls. Small JSON keeps token use down when results go straight into a model context.
• Monitoring keywords. Run scheduled news or web queries with freshness filters.
• Vertical lookups. Switch to /api/v1/places or /api/v1/scholar without learning a new response format.
• Usage-based billing. Pay only for the calls you make, with no monthly plan.

Paying for calls

Every call is priced on its own. With x402, an unpaid request returns HTTP 402 with the exact amount, asset and recipient for USDC on Base or Solana; your client signs a payment and repeats the same request, and results come back once the payment settles. No account or API key is involved. If you would rather pay by card, buy a credit pack on the pricing page and send Authorization: Bearer xs_.... Cached repeat queries cost half for credit keys, and failed calls are not charged. Paid calls have no per-minute rate limit.

FAQ