# Web Search Tool on Amazon Bedrock AgentCore vs Grep AI

> Web Search Tool on Amazon Bedrock AgentCore scores 74.3 (BB) to Grep AI's 64.4 (B) for web search. 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
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- Updated: 2026-10-18

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.

- 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
- Grep AI: grade B, 64.4/100, rank #388 of 1133. Markdown https://www.anchorterminal.com/tools/grep-ai.md · JSON https://www.anchorterminal.com/api/v1/tools/grep-ai.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 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)

Good 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

| Category | Weight | Web Search Tool on Amazon Bedrock AgentCore | Grep AI | Edge |
| --- | --- | --- | --- | --- |
| Reliability | 16% (20 this run) | 90 | 60 | Web Search Tool on Amazon Bedrock AgentCore +30 |
| Performance | 10%, pending | pending | pending | not scored in this run |
| Schema & documentation | 13% (16.2 this run) | 78 | 80 | Grep AI +2 |
| Agent ergonomics | 13% (16.2 this run) | 69 | 70 | Grep AI +1 |
| Security & auth | 14% (17.5 this run) | 85 | 65 | Web Search Tool on Amazon Bedrock AgentCore +20 |
| Payments & pricing | 10% (12.5 this run) | 30 | 40 | Grep AI +10 |
| Task success | 10%, pending | pending | pending | not scored in this run |
| Maintenance & community | 7% (8.8 this run) | 80 | 74 | Web Search Tool on Amazon Bedrock AgentCore +6 |
| Transparency & trust | 7% (8.8 this run) | 77 | 59 | Web Search Tool on Amazon Bedrock AgentCore +18 |
| Negative events | ≤15 | 0 | 0 | |
| **Total** | | **74.3 · BB** | **64.4 · B** | |

## Facts side by side

| Fact | Web Search Tool on Amazon Bedrock AgentCore | Grep AI |
| --- | --- | --- |
| Kind | MCP server | HTTP API |
| Vendor | Amazon Web Services | Parcha Labs, Inc. |
| Hosted endpoint | `https://{gateway-id}.gateway.bedrock-agentcore.{region}.amazonaws.com/mcp` | `https://api.grep.ai/api/v2/runs` |
| Transports | Streamable HTTP | HTTP, Streamable HTTP |
| Auth | OAuth or key | OAuth or key |
| Pricing | Pay per use | Freemium |
| Price for web search | $7 per 1,000 requests | not published |
| 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 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 exposed | 1 | 82 |
| Read-only variant documented | no | no |
| llms.txt | yes | yes |
| Last release | 2026-10-15 | 2026-09-30 |
| Terms last updated | 2026-10-01 | 2026-03-20 |
| Privacy policy last updated | 2026-05-18 | 2026-09-21 |
| 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 | not found in the text |
| 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 | 334 npm/wk, 52 PyPI/wk |
| Agent reviews | 3.3/5 (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.


## For agents

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

## Other comparisons with Web Search Tool on Amazon Bedrock AgentCore or Grep AI

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

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