Tavily vs Perplexity Search API for AI agents
Tavily is a web search API for AI agents that returns ranked results, optional page text and an optional short LLM answer. Perplexity Search API is raw ranked web results from Perplexity's own index (Search API), plus Sonar models that return cited AI answers.
The short answer
- Tavily: Quick, agent-ready web search with snippets or page text and an optional answer in one call.
- Perplexity Search API: Fresh, ranked web snippets from a large independent index, or a cited answer when you want one.
Side by side
| Tavily | Perplexity Search API | |
|---|---|---|
| Searches | The open web (general and news topics). | Perplexity's own web index, which it says covers hundreds of billions of webpages. |
| Returns | JSON: ranked results with title, URL, a content snippet and relevance score; optional cleaned full page text (raw_content), images, and a short LLM-generated answer. | Search API: JSON results with title, URL, ranked snippet text and date. Sonar: an LLM answer with citations. |
| Before the first call | A free account and an API key (Bearer token); no credit card for the free plan. | An account and an API key from the API console; pay-as-you-go, no subscription. |
| Free | 1,000 API credits a month, no credit card; a basic search costs 1 credit (advanced costs 2). | Not stated on its pages |
| Paid | Pay as you go at $0.008 a credit; a basic search is 1 credit, an advanced one 2. | Search API $5 per 1,000 requests ($1 per 1,000 with Fast Search), no token costs; Sonar models are priced per token plus a per-request fee. |
| Acting on a result | Through the web page each result links to | Through the web page each result links to |
| Limits on keeping or showing results | Not stated on its pages | Output may be displayed only within your own applications; rights are non-sublicensable and non-transferable. |
| AI in its terms | Tavily and its AI providers may use your inputs and outputs to train and improve AI models; you may not use output to build models that compete with Tavily. | Perplexity says it will not use customer content to train or fine-tune generative AI models. |
| MCP server | Official remote MCP server: https://mcp.tavily.com/mcp/ (code: https://github.com/tavily-ai/tavily-mcp) | Official MCP server: https://github.com/perplexityai/modelcontextprotocol (npm @perplexity-ai/mcp-server) |
Questions people ask
What do I need before I can use Tavily?
A free account and an API key (Bearer token); no credit card for the free plan.
Is Tavily free?
1,000 API credits a month, no credit card; a basic search costs 1 credit (advanced costs 2).
What do I need before I can use Perplexity Search API?
An account and an API key from the API console; pay-as-you-go, no subscription.
Is Perplexity Search API free?
Its pages listed no free use when we read them on October 15, 2026.
Sources
Every line about another company comes from its own pages. Prices and terms change, so check the source before you rely on one.
Tavily, read on October 15, 2026:
- tavily.com/pricing: “1,000 API credits / month”
- tavily.com/pricing: “No credit card required”
- tavily.com/pricing: “$0.008 / credit”
- docs.tavily.com/documentation/api-credits: “Each request costs 1 API credit.”
- docs.tavily.com/documentation/api-credits: “Each request costs 2 API credits.”
- tavily.com/terms: “may incorporate insights derived from your Customer Input and Outputs into their respective training datasets”
- tavily.com/terms: “use Output generated by the AI Functionality to develop models that compete with the Company”
- docs.tavily.com/documentation/mcp: “The easiest way to take advantage of Tavily MCP is by using the remote URL.”
- docs.tavily.com/documentation/mcp: “https://github.com/tavily-ai/tavily-mcp”
Perplexity Search API, read on October 15, 2026:
- docs.perplexity.ai/getting-started/pricing: “The Search API charges per successful request, including a successful request with multiple queries, with no token costs.”
- docs.perplexity.ai/getting-started/pricing: “Total cost per query = token costs + a per-request fee (Sonar, Sonar Pro, and Sonar Reasoning Pro)”
- docs.perplexity.ai/getting-started/quickstart: “Pay-as-you-go pricing for all APIs. No subscription required.”
- perplexity.ai/hub/blog/introducing-the-perplexity-search-api: “With an index covering hundreds of billions of webpages”
- docs.perplexity.ai/guides/search-quickstart: “real-time, ranked web results as structured data”
- perplexity.ai/hub/legal/perplexity-api-terms-of-service: “display such Output, in each case, solely within the Customer Applications”
- perplexity.ai/hub/legal/perplexity-api-terms-of-service: “Perplexity shall not use (or authorize third parties to use) Customer Content to train, retrain, fine-tune”
- docs.perplexity.ai/guides/mcp-server: “https://github.com/perplexityai/modelcontextprotocol”
- docs.perplexity.ai/getting-started/pricing: “Search API $5.00 Raw web search results with advanced filtering”
- docs.perplexity.ai/getting-started/pricing: “Search API with Fast Search $1”