Yes. POST https://api.switch402.com/v1/scrape with {"url": "..."} returns the page as markdown for $0.008 USDC on Base per call, paid over x402 and charged only on success. A lower-cost endpoint, /v1/scrape/lite, is $0.003 per call.

Is SerpAPI or Tavily cheaper?

For basic searches, Tavily, at every volume we checked: $0 vs $25 at 1,000 searches a month, $32 vs $75 at 5,000, $100 vs $150 at 15,000, $220 vs $275 at 30,000 and $500 vs $725 at 100,000 (prices checked Nov 9, 2026, plans fully used). SerpAPI Free is $0 up to 250 searches. Tavily advanced searches cost 2 credits, which roughly doubles its column.

How much does SerpAPI cost?

Per serpapi.com/pricing, checked Nov 9, 2026, month-to-month: Free $0 (250 searches), Starter $25 (1,000), Developer $75 (5,000), Production $150 (15,000), Big Data $275 (30,000), Searcher $725 (100,000) and Volume $1,475 (250,000), with Enterprise on request. Ludicrous Speed plans cost 2x and Ludicrous Speed Max 4x.

How much does Tavily cost?

Per tavily.com/pricing and its API credits docs, checked Nov 9, 2026: Researcher free (1,000 credits a month), pay as you go $0.008 per credit, Project $30 (4,000), Bootstrap $100 (15,000), Startup $220 (38,000) and Growth $500 (100,000). A basic search is 1 credit, an advanced search 2.

What happens when I run out of SerpAPI searches?

Per SerpAPI's pricing FAQ, you can turn on Automatic Early Renewal, which renews the plan early once all searches are used, or renew manually. Either way you pay the plan price again for a full refill and your renewal date moves. Tavily plans bill extra credits at the pay-as-you-go rate; switch402 just charges each call.

Does SerpAPI charge for failed searches?

No. Per its pricing FAQ, only successful searches count; cached, errored and failed searches are not counted. switch402 /v1/search charges only when at least one result comes back.

Can switch402 replace SerpAPI or Tavily?

Only for the simple case. /v1/search returns up to 10 ranked results (title, URL, snippet) for $0.008 a call with no account or plan. It does not return full parsed result pages like SerpAPI, and it has no advanced depth like Tavily. It costs less than SerpAPI from 1,000 to 30,000 searches a month and more than Tavily at every volume above its free tier.

Where do these numbers come from?

SerpAPI's pricing page (plans, all-plans table, successful-search rule and renewal FAQ), and Tavily's pricing page and API credits docs, all checked Nov 9, 2026, plus switch402's live /v1/search terms at $0.008. Prices can change; check the sources before you decide.

SerpAPI vs Tavily Pricing (2026): Cost per Search at 1K, 15K and 100K a Month

SerpAPI and Tavily are both search APIs, but they sell different things and price them differently. Per serpapi.com/pricing (checked Nov 9, 2026, month-to-month), SerpAPI is Free for 250 searches a month, then Starter $25 for 1,000, Developer $75 for 5,000, Production $150 for 15,000, Big Data $275 for 30,000, Searcher $725 for 100,000 and Volume $1,475 for 250,000; only successful searches count, and when you run out you renew the plan early at full price. Per tavily.com/pricing and its API credits docs (same day), Tavily is free for 1,000 credits a month, $0.008 per credit pay as you go, or Project $30 for 4,000 credits up to Growth $500 for 100,000; a basic search is 1 credit and an advanced search 2. Short answer: for basic searches Tavily costs less than SerpAPI at every volume in the table below, and SerpAPI's Free plan only wins below 250 searches. SerpAPI returns full parsed search engine result pages across many engines; Tavily returns search results prepared for AI agents. switch402 /v1/search is $0.008 per successful call with no plan: cheaper than SerpAPI from 1,000 to 30,000 searches a month, but not cheaper than Tavily.

SerpAPI: monthly search plans
Each plan is a fixed number of successful searches a month; cached, errored and failed searches are not counted, and 1 search costs the same whether it returns 100 results or none. Running out means Automatic Early Renewal or a manual renewal at the full plan price. Ludicrous Speed plans cost 2x and Ludicrous Speed Max 4x.
Tavily: credits, pay as you go or plans
Basic search 1 credit, advanced 2. Pay as you go is $0.008 per credit with no plan; monthly plans are Project $30 (4,000 credits), Bootstrap $100 (15,000), Startup $220 (38,000) and Growth $500 (100,000). Credits reset on the first day of each month.
Free tiers
SerpAPI Free: 250 searches a month. Tavily Researcher: 1,000 credits a month, about 1,000 basic or 500 advanced searches.
switch402: no plan
/v1/search is $0.008 per successful call and returns up to 10 ranked results (title, URL, snippet). No account, API key or plan; paid per call in USDC on Base over x402. It is not a full SERP parser and has no advanced depth.

Monthly cost by search volume (basic searches, cheapest option), as of Nov 9, 2026

Searches a month	SerpAPI (cheapest plan that covers it)	Tavily (cheapest option, basic search)	switch402 ($0.008 per call)
250	$0 (Free)	$0 (free 1,000 credits)	$2
1,000	$25 (Starter)	$0 (free 1,000 credits)	$8
5,000	$75 (Developer)	$32 (free 1,000 + 4,000 pay as you go)	$40
15,000	$150 (Production)	$100 (Bootstrap)	$120
30,000	$275 (Big Data)	$220 (Startup)	$240
100,000	$725 (Searcher)	$500 (Growth)	$800

Plan figures assume you use the whole plan; a plan you only half use costs twice as much per search. Tavily advanced searches cost 2 credits, so the Tavily column roughly doubles for advanced depth. Tavily pay-as-you-go rows assume the free 1,000 credits are used first; plan rows do not add the free tier. Honest reading: Tavily is the cheapest of the three for basic search at every volume shown. switch402 costs less than SerpAPI from 1,000 to 30,000 searches a month, and more than SerpAPI Searcher at 100,000. SerpAPI is a different product: full parsed result pages (ads, maps, shopping, news and more) from many engines, which neither Tavily nor switch402 /v1/search replaces.

Sources, checked Nov 9, 2026: serpapi.com/pricing, tavily.com/pricing, docs.tavily.com/documentation/api-credits. Prices can change; check the source before you decide.

Example: an agent that runs 5,000 basic searches a month. SerpAPI Developer is $75 ($0.015 a search). Tavily is $32 on pay as you go (the free 1,000 credits, then 4,000 x $0.008), or $38 on Project ($30 for 4,000 plus 1,000 x $0.008). switch402 is 5,000 x $0.008 = $40, with no plan to renew. Tavily costs least here; switch402 saves $35 against SerpAPI if a list of ranked results (title, URL, snippet) is all you need.

Code example

SerpAPI search, 1 successful search per call (curl)

curl -s "https://serpapi.com/search.json?engine=google&q=x402+payment+protocol&api_key=$SERPAPI_API_KEY"

Tavily basic search, 1 credit (curl)

curl -s -X POST https://api.tavily.com/search \
  -H "Authorization: Bearer $TAVILY_API_KEY" \
  -H 'Content-Type: application/json' \
  -d '{"query": "x402 payment protocol", "search_depth": "basic"}'

switch402 search, paid per call (JavaScript)

// npm i @x402/fetch @x402/evm viem
import { wrapFetchWithPaymentFromConfig } from '@x402/fetch'
import { ExactEvmScheme } from '@x402/evm'
import { privateKeyToAccount } from 'viem/accounts'

const account = privateKeyToAccount(process.env.AGENT_KEY)
const fetchWithPayment = wrapFetchWithPaymentFromConfig(fetch, {
  schemes: [{ network: 'eip155:8453', client: new ExactEvmScheme(account) }],
})

const s = await fetchWithPayment('https://api.switch402.com/v1/search', {
  method: 'POST',
  headers: { 'Content-Type': 'application/json', 'User-Agent': 'my-agent/1.0' },
  body: JSON.stringify({ q: 'x402 payment protocol', limit: 10 }),
})
const { results } = await s.json() // $0.008, charged only when results come back

FAQ

Is switch402 live?: Yes. POST https://api.switch402.com/v1/scrape with {"url": "..."} returns the page as markdown for $0.008 USDC on Base per call, paid over x402 and charged only on success. A lower-cost endpoint, /v1/scrape/lite, is $0.003 per call.
Is SerpAPI or Tavily cheaper?: For basic searches, Tavily, at every volume we checked: $0 vs $25 at 1,000 searches a month, $32 vs $75 at 5,000, $100 vs $150 at 15,000, $220 vs $275 at 30,000 and $500 vs $725 at 100,000 (prices checked Nov 9, 2026, plans fully used). SerpAPI Free is $0 up to 250 searches. Tavily advanced searches cost 2 credits, which roughly doubles its column.
How much does SerpAPI cost?: Per serpapi.com/pricing, checked Nov 9, 2026, month-to-month: Free $0 (250 searches), Starter $25 (1,000), Developer $75 (5,000), Production $150 (15,000), Big Data $275 (30,000), Searcher $725 (100,000) and Volume $1,475 (250,000), with Enterprise on request. Ludicrous Speed plans cost 2x and Ludicrous Speed Max 4x.
How much does Tavily cost?: Per tavily.com/pricing and its API credits docs, checked Nov 9, 2026: Researcher free (1,000 credits a month), pay as you go $0.008 per credit, Project $30 (4,000), Bootstrap $100 (15,000), Startup $220 (38,000) and Growth $500 (100,000). A basic search is 1 credit, an advanced search 2.
What happens when I run out of SerpAPI searches?: Per SerpAPI's pricing FAQ, you can turn on Automatic Early Renewal, which renews the plan early once all searches are used, or renew manually. Either way you pay the plan price again for a full refill and your renewal date moves. Tavily plans bill extra credits at the pay-as-you-go rate; switch402 just charges each call.
Does SerpAPI charge for failed searches?: No. Per its pricing FAQ, only successful searches count; cached, errored and failed searches are not counted. switch402 /v1/search charges only when at least one result comes back.
Can switch402 replace SerpAPI or Tavily?: Only for the simple case. /v1/search returns up to 10 ranked results (title, URL, snippet) for $0.008 a call with no account or plan. It does not return full parsed result pages like SerpAPI, and it has no advanced depth like Tavily. It costs less than SerpAPI from 1,000 to 30,000 searches a month and more than Tavily at every volume above its free tier.
Where do these numbers come from?: SerpAPI's pricing page (plans, all-plans table, successful-search rule and renewal FAQ), and Tavily's pricing page and API credits docs, all checked Nov 9, 2026, plus switch402's live /v1/search terms at $0.008. Prices can change; check the sources before you decide.