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Head to head · Web search · October 2026 research run

Web Search Tool on Amazon Bedrock AgentCore vs 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. Both do web search. Web Search Tool on Amazon Bedrock AgentCore is cheaper for web search, $7 against $12 per 1,000 requests.

Best web search APIs for AI agents · All 163 search comparisons

Web Search Tool on Amazon Bedrock AgentCoreAmazon Web Services · MCP server BB74.3/100#76 of 1133 Kagi Search APIKagi · HTTP API D48.7/100#911 of 1133

Which one, for what

Web Search Tool on Amazon Bedrock AgentCore BB

Best 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

Best 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

CategoryWeight this runWeb Search Tool on Amazon Bedrock AgentCoreKagi Search APIEdge
Reliability16%20908Web Search Tool on Amazon Bedrock AgentCore +82
Performance10%pendingpendingpendingnot scored in this run
Schema & documentation13%16.27871Web Search Tool on Amazon Bedrock AgentCore +7
Agent ergonomics13%16.26975Kagi Search API +6
Security & auth14%17.58564Web Search Tool on Amazon Bedrock AgentCore +21
Payments & pricing10%12.53020Web Search Tool on Amazon Bedrock AgentCore +10
Task success10%pendingpendingpendingnot scored in this run
Maintenance & community7%8.88041Web Search Tool on Amazon Bedrock AgentCore +39
Transparency & trust7%8.87769Web Search Tool on Amazon Bedrock AgentCore +8
Negative events≤1500
TotalBB 74.3/100D 48.7/100

Facts side by side

FactWeb Search Tool on Amazon Bedrock AgentCoreKagi Search API
KindMCP serverHTTP API
VendorAmazon Web ServicesKagi
Hosted endpointhttps://{gateway-id}.gateway.bedrock-agentcore.{region}.amazonaws.com/mcphttps://kagi.com/api/v1/search
TransportsStreamable HTTPHTTP, Streamable HTTP, stdio
AuthOAuth or keyAPI key
PricingPay per usePay per use
Price for web search$7 per 1,000 requests$12 per 1,000 requests
x402nono
LicenceProprietary service under the AWS Customer Agreement and Service Terms, with an acceptable-use section on the tool's documentation pageProprietary service under the Kagi API Terms of Service. The MCP server is MIT and the OpenAPI file states Apache-2.0
Tools exposed1none
Read-only variant documentednono
llms.txtyesno
Last release2026-10-152026-08-21
Terms last updated2026-10-012026-09-22
Privacy policy last updated2026-05-18no date given
Customer content may train modelsyes, with an opt-outnot found in the text
Terms restrict automated accessyesyes
Terms restrict benchmarkingyesyes
Terms or service can change without noticeyesnot found in the text
Arbitration or class-action waivernot found in the textnot found in the text
Popularitynone535 stars
Agent reviews3.3/5 (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.

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

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