# Best web search API for AI agents

Updated weekly. Week of 2026-11-09, 4 test results in all regions.

**Short answer:** Early results only. Brave Search API (Brave Search) has the highest score for returning relevant web results for an agent's query: 100.0 out of 100 in all regions, from 1 test result in the week of 2026-11-09. 4 tools were scored on the same cases. Arettic runs it with one key and charges only when the result passes the check. Scores firm up once each tool has 30 test results.

## This week's ranking

| # | Tool | Provider | Score | Accuracy | Pass rate | Reliability | Test results | On sale |
|---|---|---|---|---|---|---|---|---|
| 1 | [Brave Search API](https://arettic.com/tools/brave-web-search.md) | Brave Search | 100.0 | 100.0% | 100.0% | 100.0% | 1 | yes |
| 2 | [Serper Google Search](https://arettic.com/tools/serper-web-search.md) | Serper | 100.0 | 100.0% | 100.0% | 100.0% | 1 | yes |
| 3 | [Tavily Search](https://arettic.com/tools/tavily-web-search.md) | Tavily | 97.2 | 100.0% | 100.0% | 100.0% | 1 | yes |
| 4 | [Exa Search](https://arettic.com/tools/exa-web-search.md) | Exa | 96.5 | 100.0% | 100.0% | 100.0% | 1 | yes |

Scores are 0 to 100, recomputed every Monday 00:00 UTC. Each tool's page has every input behind its score. Credits per passed result are on the prices page. https://arettic.com/prices.md

## Which one to pick

- **Highest score**: Brave Search API
- **Most accurate**: Brave Search API
- **Most reliable**: Brave Search API
- **Fastest**: Brave Search API

## How we tested

A result passes if: at least N results (5 by default) with valid, non-duplicate URLs. Fewer than N is charged pro rata.

Every tool runs the same private test cases with known answers. Live calls from the last 28 days, audits and disputes count too. No provider pays to be included or sees the test set. The formula and every input are public. https://arettic.com/scores.md

## Use it from your agent

Ask Arettic which tool leads, then run it. One key covers every tool, with no account at each provider.

- MCP: `claude mcp add arettic --env ARETTIC_API_KEY=sk_test_… -- npx -y @arettic/mcp` (setup for other clients: https://arettic.com/mcp.md)
- HTTP: `POST https://api.arettic.com/v1/recommend` with `{"task_type":"web_search"}`, then `POST https://api.arettic.com/v1/execute` with the `tool_id` and an `input` such as `{"query":"Series A fintech startups in New York","n":5}`

## Questions

**What is the best web search API for AI agents?**
Early results only. Brave Search API (Brave Search) has the highest score for returning relevant web results for an agent's query: 100.0 out of 100 in all regions, from 1 test result in the week of 2026-11-09. 4 tools were scored on the same cases. Arettic runs it with one key and charges only when the result passes the check. Scores firm up once each tool has 30 test results.

**How is the score worked out?**
Every tool runs the same test cases each week. The score combines accuracy, pass rate, audit precision, reliability, speed and upheld disputes. The formula and every input are public on the scores page. Paying never changes a score.

**Do I need an account with each provider?**
No. One Arettic key runs every tool. Arettic holds the provider accounts and keys.

**What do I pay when a lookup fails?**
You pay only for what passes the check. It passes if: at least N results (5 by default) with valid, non-duplicate URLs. Fewer than N is charged pro rata.

**Can my agent pick the tool itself?**
Yes. Call recommend with task_type web_search for the ranked list, then execute the tool you want. Both work over the HTTP API and the MCP server.

Other jobs: [Verified email](https://arettic.com/best/verified-email-api.md) · [Verify email](https://arettic.com/best/email-verification-api.md) · [Company profile](https://arettic.com/best/company-enrichment-api.md) · [Person profile](https://arettic.com/best/person-enrichment-api.md) · [Read a page](https://arettic.com/best/web-scraping-api.md)

This page as HTML: https://arettic.com/best/web-search-api · Markdown: https://arettic.com/best/web-search-api.md · JSON: https://arettic.com/best/web-search-api.json