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It's a split decision.
YepAPI is a usage-billed API suite for SEO and SERP data, scraping, social and commerce data, and AI models, all behind one key. Tavily is a web-access API for AI agents, with search, extraction, crawling and research. Choose YepAPI when an application needs several data types or model endpoints. Choose Tavily when the main job is grounding agent responses in current web content. Both offer a free way to start; their usage units differ, so compare costs against the calls your application will make.
01Side by side
| YepAPI | Tavily | |
|---|---|---|
| Pricing model | Per-call or metered usage; no subscriptions or minimums | Free monthly plan or pay-as-you-go per credit |
| Free tier | $5 signup credit; no card required | 1,000 API credits monthly; no card required |
| API and SDKs | Shared-key JSON API across data and model endpoints | Search, extract, crawl, and research API with structured chunks |
| CLI and docs | API docs, llms.txt, MCP server, and agent skills | Setup prompt for agent integration |
| Integrations | Homepage names Claude Code, Cursor, Codex, and MCP | Framework and agent integrations; no names on homepage |
| Deployment model | API service; deployment details aren't specified | API service; deployment details aren't specified |
| Platforms | Web | Web |
| Limits and scaling | No rate limits; failed calls aren't charged | Project plan has higher rate limits; enterprise limits are custom |
YepAPI Choose YepAPI if
- Choose YepAPI if one API should cover SEO, scraping, social data, and AI models.
- Choose YepAPI if you want endpoint prices and per-call billing without a subscription.
- Choose YepAPI if Claude Code, Cursor, Codex, or MCP fit your agent workflow.
Tavily Choose Tavily if
- Choose Tavily if your main requirement is fresh web search for AI agents.
- Choose Tavily if structured, chunked web extraction and research fit your retrieval flow.
- Choose Tavily if monthly credits or a per-credit pay-as-you-go plan suit your budget.
02Pricing at real usage
YepAPI lists a $5 signup credit, no card required, and no subscriptions or monthly minimums. Calls are billed by use, with endpoint prices shown before use. The homepage lists Google SERP at $0.01 per call and web scraping at $0.01 per call; keyword overview starts at $0.03. Other endpoints and models have their own prices, so a typical bill depends on the mix of calls. Failed calls are not charged.
Tavily's free Researcher plan includes 1,000 API credits per month. Pay As You Go costs $0.008 per credit; the Project plan is $30 per month for 4,000 credits and higher rate limits. Enterprise pricing is custom. A credit is not directly comparable to a YepAPI call, so estimate each product against your expected endpoint mix before budgeting.
03API, SDKs and integration
YepAPI exposes SEO, SERP, scraping, social, commerce, and AI model endpoints through one API key. The homepage shows POST requests and JSON responses, including endpoints such as /v1/seo/keywords/overview, /v1/serp/google, and /v1/scrape. Scraping can return markdown, HTML, or screenshots. Its llms.txt is intended to help coding agents write calls; the homepage also names Claude Code, Cursor, Codex, an MCP server, and agent skills.
Tavily provides API functions for search, extraction, crawling, and research. Its search flow returns relevant web content in structured chunks, and its homepage offers a setup prompt for agents. The homepage says it integrates with frameworks and agents but does not name them. Neither homepage names language-specific SDKs, so check the docs for supported languages before choosing an SDK-based integration. YepAPI is broader; Tavily centers on web retrieval.
04Open source, self-hosting and lock-in
Neither vendor publishes an open-source license or a self-hosting option. Both are presented as APIs, so plan to send requests to a vendor-operated service rather than deploy the service in your own environment. Ask each vendor about data retention, deletion, and export requirements before sending production data.
The API shapes create different migration work. YepAPI's shared key spans multiple endpoint categories, so replacing it means sourcing alternatives for each category and adapting calls and JSON handling. Tavily's search, extraction, crawl, and research functions are a narrower dependency, but an agent that relies on its structured chunks, caching, or indexing will need a replacement retrieval layer. Neither homepage describes a data-export path; keep your own request logs and downstream records if portability matters.
Questions people ask
Is YepAPI cheaper than Tavily?
There is no single price comparison: YepAPI lists per-endpoint prices, including Google SERP at $0.01 per call, while Tavily charges $0.008 per credit on Pay As You Go. Tavily also has a free monthly credit plan. Estimate your own call mix because a Tavily credit and a YepAPI call are different billing units.
Which is better for AI agents?
Tavily is focused on web access for agents: search, extraction, crawling, and research return content for grounding model responses. YepAPI fits agents that need a wider set of tools, including SEO, scraping, social data, and AI models. The better fit depends on whether web retrieval or broader API coverage is central.
Can I self-host YepAPI or Tavily?
Neither vendor publishes a self-hosting option or an open-source license on its homepage. Both are described as APIs. If your deployment requires running the service in your own environment, ask the vendor directly about deployment choices, data handling, and contractual terms before integrating.
What do the free plans include?
YepAPI offers $5 in signup credit, with no card required. Tavily's Researcher plan includes 1,000 API credits per month and also requires no card. These are different units and billing structures: YepAPI credit is signup value, while Tavily's free allowance is a monthly credit allocation.