DataForSEO alternatives
The highest-scoring alternative to DataForSEO is Ahrefs at 83/100 on the AgentReady, against 56/100 for DataForSEO.
All scored in SEO & Search Intelligence.
What Ahrefs does that DataForSEO does not
Ahrefs passes structured api reference, openapi / spec quality, request examples provided, response examples provided, errors and status codes documented, no mandatory sales call, programmatic credential creation, official python sdk, structured, predictable output, machine-readable errors, and DataForSEO fails them. That is the whole of the gap between the two scores, so if none of those matter to your agent the ranking above overstates the difference.
Why people look for an alternative
DataForSEO fails llms-full.txt / full agent docs, structured api reference, openapi / spec quality, authentication documented, request examples provided, response examples provided, errors and status codes documented, no mandatory sales call, programmatic credential creation, official python sdk, cli available, structured, predictable output, machine-readable errors, retry behavior documented, idempotency support, rate-limit behavior predictable, agent compatibility verified. Each one is a place an unattended run stops, which is usually what sends someone looking in the first place.
What this category actually supports
Across the 9 products scored in SEO & Search Intelligence, seo / serp intelligence is offered by 100%.
An agent can get this list directly: resolve("alternative to DataForSEO") over the MCP server, or GET /v1/categories/seo.