The LinkBuilder.com API gives you programmatic access to our database of 461,000+ websites and placement prices from 46 marketplaces and agencies. You can search websites, compare provider prices and get SEO metrics, all through one API.
API key - API page
Documentation - https://client-api.linkbuilder.com/client-api/documentation
With the API you can:
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find the cheapest supplier for any placement and alternatives to your current one;
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check whether you’re overpaying by comparing your prices with the best available ones;
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see which competitor backlinks you can buy and how much they cost;
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estimate link-building budgets based on current market prices;
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enrich outreach databases with prices, metrics and providers;
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add placement prices and SEO metrics to your own SEO, marketing, outreach or analytics product.
The API is built for marketing agencies, in-house SEO teams, SEO and marketing SaaS products, outreach platforms, sponsored content marketplaces and teams building internal SEO tools.
How do I get started with the API?
Choose an API plan on the API page and get your access credentials in your account. The full API documentation includes all endpoints, parameters and response examples.