x402serpsPricing
Pay per call in USDC on Base. No subscription, no account, no API key needed — or buy prepaid credits by card below. Prices are the same over HTTP and MCP.
| Product | Endpoint | MCP tool | Price (USDC) | What you get |
|---|---|---|---|---|
| Web search | POST /api/v1/search | web_search | $0.01 | Up to 20 Google results |
| News search | POST /api/v1/news | news_search | $0.01 | Up to 20 Google News results |
| Page to text | POST /api/v1/extract | extract | $0.003 | Any public URL to clean markdown |
| Search + extract | POST /api/v1/search-extract | search_extract | $0.02 | Search plus full text of top 1-5 results |
| Batch search | POST /api/v1/batch | batch_search | $0.15 | Up to 25 queries in one call |
| Image search | POST /api/v1/images | image_search | $0.01 | Google Images: image URL, thumbnail, size |
| Places search | POST /api/v1/places | places_search | $0.01 | Google Maps: address, rating, phone, website, lat/lng |
| Shopping search | POST /api/v1/shopping | shopping_search | $0.01 | Google Shopping: product, price, store, rating |
| Scholar search | POST /api/v1/scholar | scholar_search | $0.01 | Google Scholar: papers, year, citations, PDF |
| Video search | POST /api/v1/videos | video_search | $0.01 | Google Videos: title, channel, duration, date |
| Deep research | POST /api/v1/research | deep_research | $0.08 | Search + read top 3-8 pages, cited brief with excerpts |
| AI visibility check | POST /api/v1/visibility | ai_visibility_check | $0.10 | Brand rank + AI Overview/answer box/PAA/knowledge graph for up to 10 keywords, 0-100 score (flat) |
Prepaid credits (pay by card)
No crypto wallet? Buy a credit pack with a card and use a normal API key (Authorization: Bearer xs_...) on every endpoint. 1 credit = one $0.01 call (extract 1, search-extract 2, research 8, visibility 10, batch 15). Credits don't expire.
Secure checkout by Stripe. Your API key is shown once after payment. Check your balance with GET /api/v1/balance.
Free trial
Try it before paying: send header X-Trial: 1 (no payment) to search, news, extract, images, places, shopping, scholar or videos. You get 25 free calls per network (IPv4 /24) (max 10 per minute). The X-Trial-Remaining response header shows what's left; after that you get the normal 402. Deep research and AI visibility checks are paid-only.
How billing works
- An unpaid request returns HTTP 402 with the exact price and payment requirements.
- Your x402 client signs a USDC transfer authorization and retries with an
X-PAYMENTheader. - Payment settles only when the call succeeds. 4xx/5xx responses are not settled.
- Scheme
exact, asset USDC0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913, payTo0x4473c593876D7E4313Ef09Bd6D5f04cF54258B02. - Also on Solana: USDC
EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v, payTo99V43C6cN5fxidQLNzZf2nCiC1FQ6SDUFaB3Deeq8wtm. Same prices; the 402 lists both.
Client compatibility
Payments use x402 protocol v1. Working clients: x402 / x402-fetch / x402-axios 1.2.x (or compatible v1 clients). Older x402 0.x clients and hand-built payloads are rejected with invalid_payload. See docs for a Base/Solana snippet.
Examples
- 1,000 searches = $10
- 1,000 page extractions = $3
- 1,000 batch calls (25,000 queries) = $150 ($0.006 per query)
- 100 deep research briefs = $8
- 100 visibility checks (up to 1,000 keywords) = $10