SEO and Keyword Data API
44 SEO and keyword data APIs for agents: search volume, CPC, keyword ideas, Google Trends, backlinks, domain metrics, SERP, Maps, audits. $0.012-$0.25 per call via x402, USDC on Base.
1 of 44 routes settlement-verified · $0.04 USDC/request · 44 endpoints / 44 tools · Data · base network · x402 protocol
Verified routes
GET /v1/search-volume· $0.04 · Verified with a $0.04 test payment on 10 Nov 2026 · receipt
Other routes are unverified.
Networks: Base (settlement-verified)
Discovery is free. Agents search the catalogue here. Payment happens on the listing 402, not on PayAPI.
url https://payapi.market/mcpListing facts
- Provider
- Duo Leads
- Hosted at
keywords.duoleads.com- Category
- Data
- Price
- $0.04 USDC per request
- Endpoints
- 44
- MCP tools
- 44
- Payment networks
- Base
- Settlement-verified
- 1 route, last checked 2026-11-10
- Listed on PayAPI Market
- 2026-11-09
Try SEO and Keyword Data API
Call a verified route without paying first. The server should answer HTTP 402 Payment Required with the price, the USDC asset, the network and the wallet to pay. An x402 client pays that amount on Base and retries with the payment header.
curl -i "https://keywords.duoleads.com/v1/search-volume"About this API
SEO and Keyword Data API is listed in the Data category with pricing at $0.04 USDC/request. One route has been settlement-verified by PayAPI Market on 2026-11-10. View receipt on Basescan.
Payments settle on base in USDC via the x402 protocol. AI agents discover this API through the PayAPI Market MCP server and pay per request without API keys or accounts.
This API exposes 44 endpoints. Only the verified route has been tested by PayAPI Market. Other routes are unverified.
Add this badge to your README
Paste this on your site. The link points at this listing. Listing is free and providers keep 100%.
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Questions about this API
What does SEO and Keyword Data API do?
44 SEO and keyword data APIs for agents: search volume, CPC, keyword ideas, Google Trends, backlinks, domain metrics, SERP, Maps, audits. $0.012-$0.25 per call via x402, USDC on Base. It is provided by Duo Leads.
How much does SEO and Keyword Data API cost?
SEO and Keyword Data API is priced at $0.04 USDC per request, paid per call with no subscription. Verified with a $0.04 test payment on 10 Nov 2026. The exact amount for each call is in the HTTP 402 response before any money moves.
Do I need an API key or account to use SEO and Keyword Data API?
No. SEO and Keyword Data API uses the x402 protocol, so an agent pays per request in USDC on Base and gets the response, with no API key, account or signup.
Has SEO and Keyword Data API been verified?
Yes, 1 route of its 44 endpoints. PayAPI Market paid for a real call from its own wallet, received real data back and recorded the USDC settlement on-chain, most recently on 2026-11-10. Routes that were not paid for are unverified.
How does an AI agent find SEO and Keyword Data API?
Through the free PayAPI Market MCP server at https://payapi.market/mcp, using search_apis or get_api, or over plain HTTP at https://payapi.market/agent/search. Discovery is free; the agent pays the provider directly on the listing's own 402.
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