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Head to head · Web search · October 2026 research run

Web Search Tool on Amazon Bedrock AgentCore vs SerpApi

Web Search Tool on Amazon Bedrock AgentCore scores 74.3 (BB) on agent readiness against SerpApi's 62.5 (B), and leads in 3 of 7 scored categories. SerpApi leads on agent ergonomics and transparency & trust. Both do web search. Web Search Tool on Amazon Bedrock AgentCore is cheaper for web search, $7 against $25 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 SerpApiSerpApi · HTTP API B62.5/100#476 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 60
  • Schema & documentation, 78 against 67
  • Security & auth, 85 against 40

Also in its favour

  • Cheaper for web search, $7 against $25 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

SerpApi B

Best for An agent that needs what a specific engine shows (Google verticals, Maps, Shopping, Flights, Scholar, YouTube, Amazon) parsed to JSON.

Ahead on

  • Agent ergonomics, 88 against 69
  • Transparency & trust, 84 against 77

Also in its favour

  • Runs on your own machine

Watch for

25 incidents on the status feed from July to 1 October 2026, including an outage across all APIs on 10 September

Score by category

CategoryWeight this runWeb Search Tool on Amazon Bedrock AgentCoreSerpApiEdge
Reliability16%209060Web Search Tool on Amazon Bedrock AgentCore +30
Performance10%pendingpendingpendingnot scored in this run
Schema & documentation13%16.27867Web Search Tool on Amazon Bedrock AgentCore +11
Agent ergonomics13%16.26988SerpApi +19
Security & auth14%17.58540Web Search Tool on Amazon Bedrock AgentCore +45
Payments & pricing10%12.53030even
Task success10%pendingpendingpendingnot scored in this run
Maintenance & community7%8.88082SerpApi +2
Transparency & trust7%8.87784SerpApi +7
Negative events≤1500
TotalBB 74.3/100B 62.5/100

Facts side by side

FactWeb Search Tool on Amazon Bedrock AgentCoreSerpApi
KindMCP serverHTTP API
VendorAmazon Web ServicesSerpApi
Hosted endpointhttps://{gateway-id}.gateway.bedrock-agentcore.{region}.amazonaws.com/mcphttps://serpapi.com/search
TransportsStreamable HTTPHTTP, Streamable HTTP, stdio
AuthOAuth or keyAPI key
PricingPay per useFreemium
Price for web search$7 per 1,000 requests$25 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 pagenone
Tools exposed13
Read-only variant documentednoyes
llms.txtyesyes
MCP registrynot listedio.github.serpapi/serpapi-mcp
Last release2026-10-152026-09-22
Terms last updated2026-10-012026-08-27
Privacy policy last updated2026-05-182026-08-27
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 noticeyesyes
Arbitration or class-action waivernot found in the textnot found in the text
Popularitynone175 stars, 169k npm/wk, 104k 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.

SerpApi

Over 100 engines behind one GET URL, with json_restrictor field selection and output=md. 25 incidents on the status feed from July to 1 October 2026, including an outage across all APIs on 10 September.

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

SerpApi

  1. Use the MCP with Authorization: Bearer, not the key-in-path URL the README leads with
  2. Read serpapi://engines/<engine> before calling a new engine, since params isn't typed
  3. Add json_restrictor or output=md to cut tokens, and mode: compact on the MCP
  4. A 429 means either the hourly limit or an empty balance. Check the account before retrying
  5. Repeat a search within the hour and the cached copy is free. Set no_cache=true only when freshness matters

Questions

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

Web Search Tool on Amazon Bedrock AgentCore scores 74.3 (BB) on agent readiness against SerpApi's 62.5 (B), and leads in 3 of 7 scored categories. SerpApi leads on agent ergonomics and transparency & trust.

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

Web Search Tool on Amazon Bedrock AgentCore, at $7 per 1,000 requests against $25 per 1,000 requests for SerpApi. These are the vendors' published prices for the job.

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

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

Can an agent call Web Search Tool on Amazon Bedrock AgentCore and SerpApi 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 SerpApi at https://serpapi.com/search.

Other comparisons with Web Search Tool on Amazon Bedrock AgentCore or SerpApi

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