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It's a split decision.
Choose SpyFu for a web-based competitor SEO and PPC workflow with documented API endpoints, data exports and plan-based tracking. Choose Keywords Everywhere for browser-based keyword and marketing metrics, lower-cost annual credit plans, and MCP access to live keyword data in AI tools. For developers, the trade-off is subscription limits and export workflows versus annual credits and a browser-first setup. Neither vendor identifies supported language SDKs or a CLI, so confirm integration details before building around either API.
01Side by side
| SpyFu | Keywords Everywhere | |
|---|---|---|
| Pricing model | Monthly or annual subscriptions with plan-based limits | Annual plans priced by yearly credits and seats |
| Free tier | No free plan listed | Free browser features; zero keyword-volume credits |
| API and SDKs | Documented API endpoints; included API credits on some plans | API and MCP access; credit-based keyword data |
| Integrations | ChatGPT, Google Search Console and Google Ads research | 20+ integrations, including Google, marketplaces and AI tools |
| Deployment model | Web-based research and tracking platform | Browser extension with API and MCP access |
| Platforms | Web | Chrome, Firefox and Edge |
| Limits and scaling | Plan limits for exports, projects, crawls and rankings | Annual credit, seat and per-website result limits |
| Lock-in and data export | Plans include exports; API supports automated exports | API access; export formats are not specified |
SpyFu Choose SpyFu if
- Choose SpyFu if you need competitor SEO and PPC research.
- Choose SpyFu if plan-based tracking and site audits fit your workflow.
- Choose SpyFu if included data exports and API credits matter.
Keywords Everywhere Choose Keywords Everywhere if
- Choose Keywords Everywhere if you want keyword metrics in your browser.
- Choose Keywords Everywhere if annual credit plans fit your usage.
- Choose Keywords Everywhere if your AI workflow uses its MCP server.
02Pricing at real usage
Keywords Everywhere has a free browser tier, but it includes zero keyword search-volume credits; free tools, prompt templates and social metrics remain available. Paid plans are billed annually: Bronze is $7/month for 100,000 credits/year and one seat; Silver is $14/month for 400,000 credits/year and three seats; Gold is $40/month for 2 million credits/year and 10 seats; Platinum is $120/month for 8 million credits/year and 20 seats. These are annual-billing equivalents, not published standalone monthly prices.
SpyFu has no free plan. Basic costs $29/month annually or $39 month to month, with 10,000 results and exports plus $40 in API credits. Pro + AI is $89 annually or $119 monthly; its first monthly month is $59, then $119. Team / Agency is $187 annually or $249 monthly. Plan limits cover seats, tracking, crawl pages, AI fixes and rankings; extra seats cost $15 or $30/month.
03API, SDKs and integration
SpyFu is a web-based research platform with documented API endpoints for custom integrations and automated exports. Basic includes $40 in API credits, while Pro + AI includes $100; the Team / Agency plan lists unlimited exports but does not specify included API credits. SpyFu also integrates with ChatGPT and Google Search Console, and supports Google Ads research. Its site audit can generate fixes for review and publication.
Keywords Everywhere combines Chrome, Firefox and Edge extensions with an API and an MCP server for live keyword data. The site lists MCP connections to ChatGPT, Claude, Cursor and VS Code, alongside more than 20 integrations such as Google services, Bing, YouTube, Amazon, eBay, Etsy, Gemini and DeepSeek. Its browser features include traffic and backlink metrics; paid credits unlock search volume, CPC and competition data across 15+ sites. Neither vendor identifies supported language SDKs or a CLI. Confirm API authentication, rate limits and response formats with the vendor before designing a production integration.
04Open source, self-hosting and lock-in
Neither vendor publishes an open-source licence or self-hosting option. Both products rely on vendor-operated services: SpyFu is web-based, while Keywords Everywhere adds browser extensions and API and MCP access. If self-hosting or a permissive licence is a requirement, ask both vendors directly before adoption.
SpyFu’s plans list data exports, and its API supports automated exports, giving teams a documented route to extract data. Keywords Everywhere offers API access, but the vendor does not specify export formats in its product details. That difference matters when migrating keyword sets, competitor research or reporting pipelines. Before committing, verify what data each API returns, whether historical records can be retrieved, and whether your account’s usage limits allow a full export. Expect some integration work if you later replace either vendor; neither describes a migration path.
Questions people ask
Which tool costs less?
Keywords Everywhere starts at $7/month on its Bronze annual plan, with 100,000 credits/year and one seat. SpyFu Basic starts at $29/month when billed annually or $39 month to month. Compare expected credit use and needed features, since their pricing units and included limits differ.
Can developers build API integrations with both?
Yes. SpyFu lists documented API endpoints and automated exports; Keywords Everywhere offers API access and an MCP server for live keyword data. The vendors do not identify language SDKs or a CLI, so confirm authentication, rate limits and response formats before choosing an implementation.
Can I self-host either product?
Neither vendor publishes a self-hosting option or open-source licence. SpyFu is web-based, and Keywords Everywhere operates through browser extensions with API and MCP access. If your deployment policy requires running software in your own environment, ask both vendors about supported deployment options.
Does Keywords Everywhere have a free tier?
Yes. Its browser extension includes free tools, prompt templates and social metrics, but the Free plan provides zero keyword search-volume credits. Paid credits unlock search volume, CPC and competition data across 15+ sites. SpyFu does not list a free plan.