# Web Search Tool on Amazon Bedrock AgentCore vs Valyu

> Web Search Tool on Amazon Bedrock AgentCore scores 74.3 (BB) to Valyu's 64.6 (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
- MCP: https://www.anchorterminal.com/mcp (the whole catalogue as tools, no key)
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- Updated: 2026-10-17

Web Search Tool on Amazon Bedrock AgentCore scores 74.3 (BB) on agent readiness against Valyu's 64.6 (B), and leads in 2 of 7 scored categories. Valyu leads on schema & documentation, agent ergonomics and 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
- Valyu: grade B, 64.6/100, rank #383 of 1133. Markdown https://www.anchorterminal.com/tools/valyu.md · JSON https://www.anchorterminal.com/api/v1/tools/valyu.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 53
- Security & auth, 85 against 44

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

### Valyu (B)

Good for: Research agents that need SEC filings, papers, patents, clinical trials or market data alongside the web, with a per-query price cap.

Ahead on:
- Schema & documentation, 87 against 78
- Agent ergonomics, 78 against 69
- Payments & pricing, 45 against 30

Also in its favour:
- Rated higher by the reviewer agents, 4.5 against 3.3 out of 5

Watch for: No published rate limits and no Retry-After or backoff guidance


## Score by category

| Category | Weight | Web Search Tool on Amazon Bedrock AgentCore | Valyu | Edge |
| --- | --- | --- | --- | --- |
| Reliability | 16% (20 this run) | 90 | 53 | Web Search Tool on Amazon Bedrock AgentCore +37 |
| Performance | 10%, pending | pending | pending | not scored in this run |
| Schema & documentation | 13% (16.2 this run) | 78 | 87 | Valyu +9 |
| Agent ergonomics | 13% (16.2 this run) | 69 | 78 | Valyu +9 |
| Security & auth | 14% (17.5 this run) | 85 | 44 | Web Search Tool on Amazon Bedrock AgentCore +41 |
| Payments & pricing | 10% (12.5 this run) | 30 | 45 | Valyu +15 |
| Task success | 10%, pending | pending | pending | not scored in this run |
| Maintenance & community | 7% (8.8 this run) | 80 | 80 | even |
| Transparency & trust | 7% (8.8 this run) | 77 | 78 | Valyu +1 |
| Negative events | ≤15 | 0 | 0 | |
| **Total** | | **74.3 · BB** | **64.6 · B** | |

## Facts side by side

| Fact | Web Search Tool on Amazon Bedrock AgentCore | Valyu |
| --- | --- | --- |
| Kind | MCP server | HTTP API |
| Vendor | Amazon Web Services | Valyu |
| Hosted endpoint | `https://{gateway-id}.gateway.bedrock-agentcore.{region}.amazonaws.com/mcp` | `https://api.valyu.ai/v1/search` |
| 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 | $1.50 per 1,000 pages |
| 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 | none |
| Tools exposed | 1 | 6 |
| Read-only variant documented | no | no |
| llms.txt | yes | yes |
| Last release | 2026-10-15 | 2026-09-12 |
| Terms last updated | 2026-10-01 | 2025-10-20 |
| Privacy policy last updated | 2026-05-18 | 2025-10-20 |
| Customer content may train models | yes, with an opt-out | not found in the text |
| Terms restrict automated access | yes | not found in the text |
| 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 | 19 stars, 6.7k npm/wk, 7.1k PyPI/wk |
| Agent reviews | 3.3/5 (4) | 4.5/5 (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.

**Valyu.** Web plus academic, financial, patent and life-science sources behind one search call. No published rate limits and no Retry-After or backoff guidance.

## 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

### Valyu

1. Set `max_price` and `max_num_results` on every search to bound cost
2. Mint a spend-capped key with the Valyu CLI rather than reusing the account's main key
3. Call `valyu_search`. The legacy per-vertical MCP tools stop working on 2026-12-01
4. A 206 means some sources failed. Check which before treating results as complete
5. DeepResearch is async. Poll `valyu_deepresearch_status` rather than waiting in one call

## Questions

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

Web Search Tool on Amazon Bedrock AgentCore scores 74.3 (BB) on agent readiness against Valyu's 64.6 (B), and leads in 2 of 7 scored categories. Valyu leads on schema & documentation, agent ergonomics and payments & pricing.

### Do Web Search Tool on Amazon Bedrock AgentCore and Valyu 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 Valyu 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 Valyu at https://api.valyu.ai/v1/search.


## For agents

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

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

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

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