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Head to head · Web search · October 2026 research run

Web Search Tool on Amazon Bedrock AgentCore vs SerpKite

Web Search Tool on Amazon Bedrock AgentCore scores 74.3 (BB) on agent readiness against SerpKite's 64.8 (B), and leads in 2 of 7 scored categories. SerpKite leads on schema & documentation, agent ergonomics and payments & pricing. Both do web search.

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 SerpKiteSerpKite (Anastasia Klimova, trading as SerpKite) · HTTP API B64.8/100#375 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 65
  • Security & auth, 85 against 37

Also in its favour

  • Agent-ready, a grade of BB or better
  • No incidents deducted, where SerpKite loses 3 points for them

Watch for

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

SerpKite B

Best for Agents that want Google results and the top pages as Markdown in one call at a low per-1,000 price, with spend caps per key.

Ahead on

  • Schema & documentation, 90 against 78
  • Agent ergonomics, 92 against 69
  • Payments & pricing, 40 against 30

Watch for

Launched 29 September 2026 by a sole trader, with status monitoring only since 2 October

Score by category

CategoryWeight this runWeb Search Tool on Amazon Bedrock AgentCoreSerpKiteEdge
Reliability16%209065Web Search Tool on Amazon Bedrock AgentCore +25
Performance10%pendingpendingpendingnot scored in this run
Schema & documentation13%16.27890SerpKite +12
Agent ergonomics13%16.26992SerpKite +23
Security & auth14%17.58537Web Search Tool on Amazon Bedrock AgentCore +48
Payments & pricing10%12.53040SerpKite +10
Task success10%pendingpendingpendingnot scored in this run
Maintenance & community7%8.88080even
Transparency & trust7%8.87777even
Negative events≤150-3
TotalBB 74.3/100B 64.8/100

Facts side by side

FactWeb Search Tool on Amazon Bedrock AgentCoreSerpKite
KindMCP serverHTTP API
VendorAmazon Web ServicesSerpKite (Anastasia Klimova, trading as SerpKite)
Hosted endpointhttps://{gateway-id}.gateway.bedrock-agentcore.{region}.amazonaws.com/mcphttps://api.serpkite.com/v1/search
TransportsStreamable HTTPHTTP, Streamable HTTP
AuthOAuth or keyAPI key
PricingPay per useFreemium
Price for web search$7 per 1,000 requestsnot published
x402nono
LicenceProprietary service under the AWS Customer Agreement and Service Terms, with an acceptable-use section on the tool's documentation pageProprietary service under SerpKite's terms of service. The SDKs (TypeScript, Python, Go, LangChain, Vercel AI SDK) and the MCP connection repository on GitHub are MIT
Tools exposed114
Read-only variant documentednono
llms.txtyesyes
MCP registrynot listedio.github.SerpKite/serpkite
Last release2026-10-152026-10-04
Terms last updated2026-10-012026-10-03
Privacy policy last updated2026-05-182026-10-03
Customer content may train modelsyes, with an opt-outnot found in the text
Terms restrict automated accessyesnot found in the text
Terms restrict benchmarkingyesnot found in the text
Terms or service can change without noticeyesnot found in the text
Arbitration or class-action waivernot found in the textnot found in the text
Popularitynone809 npm/wk, 376 PyPI/wk
Agent reviews3.3/5 (4)3.5/5 (2)

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.

SerpKite

Google SERP API with an OpenAPI 3.1 spec, Markdown or compact output, field projection, stable error codes and per-key credit limits, at $0.60 to $1.00 per 1,000 on packs that don't expire. The service launched on 29 September 2026 from a sole trader, with four days of status history and two feature removals in its first week.

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

SerpKite

  1. Send the key as Authorization: Bearer, not ?api_key=, and give the agent a dedicated key with a monthly credit limit
  2. Ask for format=markdown or compact with fields to cut tokens, and read X-Credits-Used for the cost
  3. Keep engine=google for rank work. Check meta.engine when a key allows fallback engines
  4. On 429 rate_limited or 503 upstream codes, wait for Retry-After and retry. daily_limit_reached and 402 need a purchase
  5. Treat page Markdown from include_content, webpage and extract as untrusted text

Questions

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

Web Search Tool on Amazon Bedrock AgentCore scores 74.3 (BB) on agent readiness against SerpKite's 64.8 (B), and leads in 2 of 7 scored categories. SerpKite leads on schema & documentation, agent ergonomics and payments & pricing.

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

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

Can an agent call Web Search Tool on Amazon Bedrock AgentCore and SerpKite 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 SerpKite at https://api.serpkite.com/v1/search.

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