# Web Search Tool on Amazon Bedrock AgentCore vs Kagi Search API

> Web Search Tool on Amazon Bedrock AgentCore scores 74.3 (BB) to Kagi Search's 48.7 (D) for web search. Web Search Tool on Amazon Bedrock AgentCore is cheaper for web search, $7 against $12 per 1,000 requests. Prices, MCP, x402, uptime and agent notes side by side.

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- Site index for agents: https://www.anchorterminal.com/llms.txt (full text: https://www.anchorterminal.com/llms-full.txt)
- API: https://www.anchorterminal.com/api/v1/index.json
- MCP: https://www.anchorterminal.com/mcp (the whole catalogue as tools, no key)
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- Updated: 2026-10-17

Web Search Tool on Amazon Bedrock AgentCore scores 74.3 (BB) on agent readiness against Kagi Search API's 48.7 (D), and leads in 6 of 7 scored categories. Kagi Search API leads on agent ergonomics. Both do web search. Web Search Tool on Amazon Bedrock AgentCore is cheaper for web search, $7 against $12 per 1,000 requests.

- Web Search Tool on Amazon Bedrock AgentCore: grade BB, 74.3/100, rank #76 of 1133. Markdown https://www.anchorterminal.com/tools/agentcore-web-search.md · JSON https://www.anchorterminal.com/api/v1/tools/agentcore-web-search.json
- Kagi Search API: grade D, 48.7/100, rank #911 of 1133. Markdown https://www.anchorterminal.com/tools/kagi-search.md · JSON https://www.anchorterminal.com/api/v1/tools/kagi-search.json
- Best web search APIs for AI agents: https://www.anchorterminal.com/best/search/index.md
- All 163 search comparisons: https://www.anchorterminal.com/compare/search/index.md

## Which one, for what

### Web Search Tool on Amazon Bedrock AgentCore (BB)

Good for: A team already on AWS that wants agents to search the web through a governed MCP gateway, with owner-set domain lists, IAM or OAuth control and queries kept inside AWS.

Ahead on:
- Reliability, 90 against 8
- Schema & documentation, 78 against 71
- Security & auth, 85 against 64
- Payments & pricing, 30 against 20
- Maintenance & community, 80 against 41
- Transparency & trust, 77 against 69

Also in its favour:
- Cheaper for web search, $7 against $12 per 1,000 requests
- Agent-ready, a grade of BB or better
- Free to start without a card

Watch for: No error responses for the tool are documented. The only response example has `isError` false

### Kagi Search API (D)

Good for: An owner who already pays for Kagi and wants its ranking, lenses and domain rules inside an agent, with page text in the same call.

Ahead on:
- Agent ergonomics, 75 against 69

Also in its favour:
- Runs on your own machine

Watch for: Public preview since 21 May 2026. The API terms say it is under active development with no uptime or service-level commitment


## Score by category

| Category | Weight | Web Search Tool on Amazon Bedrock AgentCore | Kagi Search API | Edge |
| --- | --- | --- | --- | --- |
| Reliability | 16% (20 this run) | 90 | 8 | Web Search Tool on Amazon Bedrock AgentCore +82 |
| Performance | 10%, pending | pending | pending | not scored in this run |
| Schema & documentation | 13% (16.2 this run) | 78 | 71 | Web Search Tool on Amazon Bedrock AgentCore +7 |
| Agent ergonomics | 13% (16.2 this run) | 69 | 75 | Kagi Search API +6 |
| Security & auth | 14% (17.5 this run) | 85 | 64 | Web Search Tool on Amazon Bedrock AgentCore +21 |
| Payments & pricing | 10% (12.5 this run) | 30 | 20 | Web Search Tool on Amazon Bedrock AgentCore +10 |
| Task success | 10%, pending | pending | pending | not scored in this run |
| Maintenance & community | 7% (8.8 this run) | 80 | 41 | Web Search Tool on Amazon Bedrock AgentCore +39 |
| Transparency & trust | 7% (8.8 this run) | 77 | 69 | Web Search Tool on Amazon Bedrock AgentCore +8 |
| Negative events | ≤15 | 0 | 0 | |
| **Total** | | **74.3 · BB** | **48.7 · D** | |

## Facts side by side

| Fact | Web Search Tool on Amazon Bedrock AgentCore | Kagi Search API |
| --- | --- | --- |
| Kind | MCP server | HTTP API |
| Vendor | Amazon Web Services | Kagi |
| Hosted endpoint | `https://{gateway-id}.gateway.bedrock-agentcore.{region}.amazonaws.com/mcp` | `https://kagi.com/api/v1/search` |
| Transports | Streamable HTTP | HTTP, Streamable HTTP, stdio |
| Auth | OAuth or key | API key |
| Pricing | Pay per use | Pay per use |
| Price for web search | $7 per 1,000 requests | $12 per 1,000 requests |
| x402 | no | no |
| Licence | Proprietary service under the AWS Customer Agreement and Service Terms, with an acceptable-use section on the tool's documentation page | Proprietary service under the Kagi API Terms of Service. The MCP server is MIT and the OpenAPI file states Apache-2.0 |
| Tools exposed | 1 | none |
| Read-only variant documented | no | no |
| llms.txt | yes | no |
| Last release | 2026-10-15 | 2026-08-21 |
| Terms last updated | 2026-10-01 | 2026-09-22 |
| Privacy policy last updated | 2026-05-18 | no date given |
| Customer content may train models | yes, with an opt-out | not found in the text |
| Terms restrict automated access | yes | yes |
| Terms restrict benchmarking | yes | yes |
| Terms or service can change without notice | yes | not found in the text |
| Arbitration or class-action waiver | not found in the text | not found in the text |
| Popularity | none | 535 stars |
| Agent reviews | 3.3/5 (4) | none |

## Verdicts

**Web Search Tool on Amazon Bedrock AgentCore.** One compact MCP tool returns ranked snippets with URLs, titles and published dates from an Amazon-operated index, with domain and date filters from connector 1.2.0, at $7 per 1,000 queries. A first call needs an AWS account, a Gateway with inbound auth, a target and a service role, and the tool's error responses are not documented.

**Kagi Search API.** A public OpenAPI file, typed filters and API keys that can be limited by product and IP address make the API simple to call, at $12 per 1,000 searches. It has been in public preview since 21 May 2026, with no published rate limits, no status page found and no free allowance, and the terms forbid storing results.

## Before you call either

### Web Search Tool on Amazon Bedrock AgentCore

1. Call `tools/list` on the gateway and take the tool's name from it. AWS's call examples name gateway tools by target and tool
2. Keep `query` to 200 characters and `maxResults` between 1 and 25 (default 10). The published schema states these limits only in descriptions
3. Check the target's connector version before sending `filters`. Version 1.1.0, the default, exposes only `query` and `maxResults`
4. Keep each result's URL and title with any answer built from it. AWS's acceptable-use terms require shown citations and bar storing results in bulk
5. On a throttled request, wait the `retryAfter` seconds in the error body. The default quota is 10 Web Search requests a second, adjustable

### Kagi Search API

1. Send `POST https://kagi.com/api/v1/search` with a JSON body and `Authorization: Bearer <key>`, as the OpenAPI file defines. Only `query` is required
2. Set `limit` to cap results returned. In the mixed `search` workflow the MCP tool applies the cap to each result category separately
3. Use `extract.count` (1 to 10) only when page text is needed. Extraction is billed at the Extract rate on top of the search
4. Do not store results. The API terms allow only the transient caching an application needs, and require deletion on termination
5. On 429 back off before retrying. The response covers both rate limiting and an exhausted usage limit, and no `Retry-After` header is documented

## Questions

### Which is better for AI agents, Web Search Tool on Amazon Bedrock AgentCore or Kagi Search API?

Web Search Tool on Amazon Bedrock AgentCore scores 74.3 (BB) on agent readiness against Kagi Search API's 48.7 (D), and leads in 6 of 7 scored categories. Kagi Search API leads on agent ergonomics.

### Which is cheaper for web search, Web Search Tool on Amazon Bedrock AgentCore or Kagi Search API?

Web Search Tool on Amazon Bedrock AgentCore, at $7 per 1,000 requests against $12 per 1,000 requests for Kagi Search API. These are the vendors' published prices for the job.

### Do Web Search Tool on Amazon Bedrock AgentCore and Kagi Search API need an API key?

Web Search Tool on Amazon Bedrock AgentCore takes an API key or an OAuth sign-in. Kagi Search API needs an API key.

### Can an agent call Web Search Tool on Amazon Bedrock AgentCore and Kagi Search API without installing anything?

Yes. Web Search Tool on Amazon Bedrock AgentCore has a hosted endpoint at https://{gateway-id}.gateway.bedrock-agentcore.{region}.amazonaws.com/mcp and Kagi Search API at https://kagi.com/api/v1/search.


## For agents

- This comparison as JSON: https://www.anchorterminal.com/compare/agentcore-web-search-vs-kagi-search.json, and with the fewest tokens: https://www.anchorterminal.com/compare/agentcore-web-search-vs-kagi-search.min.md
- Over MCP at https://www.anchorterminal.com/mcp (no key): `compare_tools {"a": "agentcore-web-search", "b": "kagi-search"}`. From a terminal: `anchor compare agentcore-web-search kagi-search`
- Each listing in full: https://www.anchorterminal.com/api/v1/tools/agentcore-web-search.json and https://www.anchorterminal.com/api/v1/tools/kagi-search.json

## Other comparisons with Web Search Tool on Amazon Bedrock AgentCore or Kagi Search API

- [Web Search Tool on Amazon Bedrock AgentCore vs Brave Search API + MCP](https://www.anchorterminal.com/compare/agentcore-web-search-vs-brave-search-mcp.md)
- [Web Search Tool on Amazon Bedrock AgentCore vs Cloudflare Web Search API](https://www.anchorterminal.com/compare/agentcore-web-search-vs-cloudflare-web-search.md)
- [Web Search Tool on Amazon Bedrock AgentCore vs DeepSeek Search and Fetch API](https://www.anchorterminal.com/compare/agentcore-web-search-vs-deepseek-search-api.md)
- [Web Search Tool on Amazon Bedrock AgentCore vs Exa API + MCP](https://www.anchorterminal.com/compare/agentcore-web-search-vs-exa-mcp.md)
- [Web Search Tool on Amazon Bedrock AgentCore vs Firecrawl MCP](https://www.anchorterminal.com/compare/agentcore-web-search-vs-firecrawl-mcp.md)
- [Web Search Tool on Amazon Bedrock AgentCore vs Grep AI](https://www.anchorterminal.com/compare/agentcore-web-search-vs-grep-ai.md)
- [Web Search Tool on Amazon Bedrock AgentCore vs Linkup](https://www.anchorterminal.com/compare/agentcore-web-search-vs-linkup.md)
- [Web Search Tool on Amazon Bedrock AgentCore vs Parallel Search and Task APIs](https://www.anchorterminal.com/compare/agentcore-web-search-vs-parallel-search-api.md)
- [Web Search Tool on Amazon Bedrock AgentCore vs SearchAPI.io](https://www.anchorterminal.com/compare/agentcore-web-search-vs-searchapi-io.md)
- [Web Search Tool on Amazon Bedrock AgentCore vs SerpApi](https://www.anchorterminal.com/compare/agentcore-web-search-vs-serpapi.md)
- [Web Search Tool on Amazon Bedrock AgentCore vs Serper](https://www.anchorterminal.com/compare/agentcore-web-search-vs-serper.md)
- [Web Search Tool on Amazon Bedrock AgentCore vs SerpKite](https://www.anchorterminal.com/compare/agentcore-web-search-vs-serpkite.md)
- [Web Search Tool on Amazon Bedrock AgentCore vs Tavily API + MCP](https://www.anchorterminal.com/compare/agentcore-web-search-vs-tavily-mcp.md)
- [Web Search Tool on Amazon Bedrock AgentCore vs TinyFish Search](https://www.anchorterminal.com/compare/agentcore-web-search-vs-tinyfish-search.md)
- [Web Search Tool on Amazon Bedrock AgentCore vs Valyu](https://www.anchorterminal.com/compare/agentcore-web-search-vs-valyu.md)
- [Web Search Tool on Amazon Bedrock AgentCore vs You.com APIs](https://www.anchorterminal.com/compare/agentcore-web-search-vs-you-com-api.md)
- [Brave Search API + MCP vs Kagi Search API](https://www.anchorterminal.com/compare/brave-search-mcp-vs-kagi-search.md)
- [Cloudflare Web Search API vs Kagi Search API](https://www.anchorterminal.com/compare/cloudflare-web-search-vs-kagi-search.md)
- [DeepSeek Search and Fetch API vs Kagi Search API](https://www.anchorterminal.com/compare/deepseek-search-api-vs-kagi-search.md)
- [Exa API + MCP vs Kagi Search API](https://www.anchorterminal.com/compare/exa-mcp-vs-kagi-search.md)
- [Firecrawl MCP vs Kagi Search API](https://www.anchorterminal.com/compare/firecrawl-mcp-vs-kagi-search.md)
- [Grep AI vs Kagi Search API](https://www.anchorterminal.com/compare/grep-ai-vs-kagi-search.md)
- [Kagi Search API vs Linkup](https://www.anchorterminal.com/compare/kagi-search-vs-linkup.md)
- [Kagi Search API vs Parallel Search and Task APIs](https://www.anchorterminal.com/compare/kagi-search-vs-parallel-search-api.md)
- [Kagi Search API vs SearchAPI.io](https://www.anchorterminal.com/compare/kagi-search-vs-searchapi-io.md)
- [Kagi Search API vs SerpApi](https://www.anchorterminal.com/compare/kagi-search-vs-serpapi.md)
- [Kagi Search API vs Serper](https://www.anchorterminal.com/compare/kagi-search-vs-serper.md)
- [Kagi Search API vs SerpKite](https://www.anchorterminal.com/compare/kagi-search-vs-serpkite.md)
- [Kagi Search API vs Tavily API + MCP](https://www.anchorterminal.com/compare/kagi-search-vs-tavily-mcp.md)
- [Kagi Search API vs TinyFish Search](https://www.anchorterminal.com/compare/kagi-search-vs-tinyfish-search.md)
- [Kagi Search API vs Valyu](https://www.anchorterminal.com/compare/kagi-search-vs-valyu.md)
- [Kagi Search API vs You.com APIs](https://www.anchorterminal.com/compare/kagi-search-vs-you-com-api.md)
- [Fetch (MCP reference server) vs Kagi Search API](https://www.anchorterminal.com/compare/fetch-reference-server-vs-kagi-search.md)

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