Feature proposal: optional GoAnyAPI provider

Hi — I run GoAnyAPI and would be interested in contributing an optional provider integration.

GoAnyAPI offers pay-as-you-go APIs for SERP, keyword difficulty, keyword generation, backlink overview and top links, domain rating, traffic, AdSense relationship lookup, and Google Ads Transparency. I am not proposing a full DataForSEO replacement: users could select GoAnyAPI for compatible operations, while DataForSEO or existing providers remain available for broader datasets.

For this project, a useful first scope may be an optional agent tool for live SEO and advertiser research. I can provide development and testing credits, API documentation, sample responses, and direct integration support. If this fits the roadmap, I am happy to prepare a small PR against the preferred provider interface.

https://goanyapi.com

No files or tests are named. Start by reviewing the project's preferred provider interface and the GoAnyAPI documentation and sample responses offered in the issue. Narrow the compatible SEO and advertiser operations first; done should be an optional integration that coexists with DataForSEO and existing providers.

Written by the indexing model from the issue text.