Fact sheet · APIs & SDKs
Duo Leads
SEO and keyword data API with 44 routes, paid per call over x402 in USDC on Base
Overview
Duo Leads is an API service providing 44 routes across 9 data families for SEO and keyword research. It offers keyword research capabilities including search volume, CPC, difficulty, intent, keyword ideas and history; Google Trends analysis; domain overview and rankings; backlink profiles; on-page SEO audits and page speed checks; Amazon keyword data and search results; Google, Bing and YouTube search results; Google Maps and business listings; brand and AI mention tracking; and website technology stacks and WHOIS data.
The service operates on a pay-per-call model using USDC stablecoin on the Base blockchain, with no account creation, API keys, or subscriptions required. Pricing varies by endpoint from $0.012 to $0.25 per call. All data are estimates from third-party indexes including Google Ads, Google Trends, and web link indexes, provided without warranty of accuracy or completeness.
Feature facts
- Keyword research with search volume, CPC, difficulty, intent and ideas for up to 100 keywords per call
- Domain overview, traffic estimates and ranked keywords for up to 100 domains
- Backlink profile data including referring domains and anchor texts with 24-month history
- On-page SEO audit and Lighthouse page speed analysis for individual URLs
- Amazon keyword ideas and search results across multiple regional stores
- Brand mention tracking and AI answer visibility monitoring
- Website technology stack and WHOIS domain registration data
- No account, API key or subscription required; pay per call in USDC on Base blockchain
Pricing
Pricing model: Paid
Prices per call range from $0.012 to $0.25 in USDC on Base. Keyword overview: $0.04. Search volume: $0.04. Keyword ideas: $0.04. Related keywords: $0.04. Keyword variations: $0.04. Keyword difficulty: $0.04. Search intent: $0.04. Keyword volume history: $0.048. Keyword suggestions: $0.04. Google Ads
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Duo Leads specifications
| Section | APIs & SDKs |
|---|---|
| Origin | Utrecht, Netherlands |
| Website | keywords.duoleads.com |
| Votes2 | 0 |
Duo Leads metrics
| Metric | Value |
|---|---|
| Domain Rating | 6 no change since last check |
| Trust Flow | 0 no change since last check |
| Citation Flow | 24 no change since last check |
| Referring domains | 19 no change since last check |
| External backlinks | 178 no change since last check |
Fact: Ahrefs Domain Rating checked 12 Nov 2026, fact changed 10 Nov 2026. Fact: Majestic checked 10 Nov 2026, fact changed 10 Nov 2026. Link facts from Majestic. Trust Flow, Citation Flow and Topical Trust Flow are trademarks of Majestic-12 Ltd.
Duo Leads domain fact sheet
Open the fact sheet
| Domain age | 6 years |
|---|---|
| Registered | |
| Expires | |
| Registrar | Key-Systems GmbH |
| DNSSEC | Not signed |
Duo Leads launch receipt sheet
What we have measured for Duo Leads since it went live on SaaS Directory Info on 10 November 2026.
- 6 Domain Rating (Ahrefs) no change since launch
at launch: 6 (10 Nov 2026); latest: 12 Nov 2026 - 0 Trust Flow (Majestic)
first measured 10 Nov 2026 - 19 Referring domains (Majestic)
first measured 10 Nov 2026
Day 2 since launch. Next receipt: day 30, 10 Dec 2026. The figures report a change; they do not say what caused it, and many things can. No figure here is a guess.
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Frequently looked up
- Q1What payment method does Duo Leads accept?
- Duo Leads accepts USDC stablecoin payments on the Base blockchain network (chain id eip155:8453). Payment is due before the response is delivered.
- Q2When am I charged for API requests?
- You are charged for requests that are answered, even when some or all keywords, domains or pages have no data. You are not charged for requests rejected before payment due to malformed input, unknown path, wrong method or oversized input, requests your data supplier fails to answer, or requests refused due to capacity limits.
- Q3What third-party data sources does the API use?
- The API uses keyword data from Google Ads and Google Trends, search results from Google, Bing, YouTube and Amazon, a web link index for backlinks, page crawls for on-page analysis, and WHOIS registrar data. All results are estimates from third-party indexes provided without warranty of accuracy, completeness or availability.
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Duo Leads has a free listing. The owner can unlock the full profile with a paid launch for $5:
- Founder story (locked)
- Milestones (locked)
- Demo video (locked)
- Dofollow website link (locked)
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