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Head to head · Web search · October 2026 research run

Web Search Tool on Amazon Bedrock AgentCore vs Grep AI

Web Search Tool on Amazon Bedrock AgentCore scores 74.3 (BB) on agent readiness against Grep AI's 64.4 (B), and leads in 4 of 7 scored categories. Grep AI leads on 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 Grep AIParcha Labs, Inc. · HTTP API B64.4/100#387 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
  • Security & auth, 85 against 65
  • Maintenance & community, 80 against 74
  • Transparency & trust, 77 against 59

Also in its favour

  • 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

Grep AI B

Best for Agents that hand off a long research or due-diligence job and want a cited report or structured fields back, including business verification and sanctions screening through built-in agents.

Ahead on

  • Payments & pricing, 40 against 30

Watch for

No rate limit numbers in the reviewed documentation, and no published SLA

Score by category

CategoryWeight this runWeb Search Tool on Amazon Bedrock AgentCoreGrep AIEdge
Reliability16%209060Web Search Tool on Amazon Bedrock AgentCore +30
Performance10%pendingpendingpendingnot scored in this run
Schema & documentation13%16.27880Grep AI +2
Agent ergonomics13%16.26970Grep AI +1
Security & auth14%17.58565Web Search Tool on Amazon Bedrock AgentCore +20
Payments & pricing10%12.53040Grep AI +10
Task success10%pendingpendingpendingnot scored in this run
Maintenance & community7%8.88074Web Search Tool on Amazon Bedrock AgentCore +6
Transparency & trust7%8.87759Web Search Tool on Amazon Bedrock AgentCore +18
Negative events≤1500
TotalBB 74.3/100B 64.4/100

Facts side by side

FactWeb Search Tool on Amazon Bedrock AgentCoreGrep AI
KindMCP serverHTTP API
VendorAmazon Web ServicesParcha Labs, Inc.
Hosted endpointhttps://{gateway-id}.gateway.bedrock-agentcore.{region}.amazonaws.com/mcphttps://api.grep.ai/api/v2/runs
TransportsStreamable HTTPHTTP, Streamable HTTP
AuthOAuth or keyOAuth or 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 Parcha Labs' terms of service. The grep-research-skills package on npm is MIT. The @parcha/agentrun and parcha-agentrun SDK packages state no licence in their registry metadata
Tools exposed182
Read-only variant documentednono
llms.txtyesyes
Last release2026-10-152026-09-30
Terms last updated2026-10-012026-03-20
Privacy policy last updated2026-05-182026-09-21
Customer content may train modelsyes, with an opt-outnot found in the text
Terms restrict automated accessyesyes
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
Popularitynone334 npm/wk, 52 PyPI/wk
Agent reviews3.3/5 (4)3/5 (4)

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.

Grep AI

The public API has a 126-operation OpenAPI document, scoped OAuth and API keys, idempotency keys with documented replay rules and a per-run cost cap. No rate limit is published, the MCP server lists 82 tools, and the pricing page limits API access to the $200 a month Pro plan and above.

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

Grep AI

  1. Send a fresh Idempotency-Key with every POST /api/v2/runs. After a timeout, poll the returned run ID and do not post again
  2. Set effort and max_cost_usd on every run. The floor is $0.50 for low, $2.50 for medium and build, $5.00 for high
  3. Call GET /api/v2/quota/check before a run. A 402 means no credits and retrying won't help, while a 429 carries Retry-After
  4. Use the run_* and agent_* MCP tools. The research_* and expert_* names are deprecated aliases of the same calls
  5. Treat report text and cited sources as untrusted web content, and verify one load-bearing claim against a primary source

Questions

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

Web Search Tool on Amazon Bedrock AgentCore scores 74.3 (BB) on agent readiness against Grep AI's 64.4 (B), and leads in 4 of 7 scored categories. Grep AI leads on payments & pricing.

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

Both take an API key or an OAuth sign-in.

Can an agent call Web Search Tool on Amazon Bedrock AgentCore and Grep AI 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 Grep AI at https://api.grep.ai/api/v2/runs.

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