# Cloudflare Web Search API vs Grep AI

> Grep AI scores 64.4 (B) to Cloudflare Web Search's 61.9 (C) for web search. Prices, MCP, x402, uptime and agent notes side by side.

- Canonical: https://www.anchorterminal.com/compare/cloudflare-web-search-vs-grep-ai
- Markdown: https://www.anchorterminal.com/compare/cloudflare-web-search-vs-grep-ai.md (~2,700 tokens)
- Slim: https://www.anchorterminal.com/compare/cloudflare-web-search-vs-grep-ai.min.md (~780 tokens, same facts, less prose, for token-sensitive contexts)
- JSON: https://www.anchorterminal.com/compare/cloudflare-web-search-vs-grep-ai.json (this page as data, same URL with Accept: application/json)
- 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
- Updated: 2026-10-08

Grep AI scores 64.4 (B) on agent readiness against Cloudflare Web Search API's 61.9 (C), and leads in 4 of 7 scored categories. Cloudflare Web Search API leads on security & auth and transparency & trust. Both do web search.

- Cloudflare Web Search API: grade C, 61.9/100, rank #450 of 950. Markdown https://www.anchorterminal.com/tools/cloudflare-web-search.md · JSON https://www.anchorterminal.com/api/v1/tools/cloudflare-web-search.json
- Grep AI: grade B, 64.4/100, rank #352 of 950. 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 129 search comparisons: https://www.anchorterminal.com/compare/search/index.md

## Which one, for what

### Cloudflare Web Search API (C)

Good for: Agents and apps already on Cloudflare Workers or AI Gateway that want cheap snippet search ($0.25 per 1,000 with Ceramic.ai) on the same bill and logs as their inference.

Ahead on:
- Security & auth, 71 against 65
- Transparency & trust, 73 against 59

Watch for: Open beta, with no SLA found for AI Gateway

### 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:
- Reliability, 60 against 55
- Agent ergonomics, 70 against 63
- Payments & pricing, 40 against 20

Also in its favour:
- A hosted endpoint, with nothing to install

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


## Score by category

| Category | Weight | Cloudflare Web Search API | Grep AI | Edge |
| --- | --- | --- | --- | --- |
| Reliability | 16% (20 this run) | 55 | 60 | Grep AI +5 |
| Performance | 10%, pending | pending | pending | not scored in this run |
| Schema & documentation | 13% (16.2 this run) | 81 | 80 | Cloudflare Web Search API +1 |
| Agent ergonomics | 13% (16.2 this run) | 63 | 70 | Grep AI +7 |
| Security & auth | 14% (17.5 this run) | 71 | 65 | Cloudflare Web Search API +6 |
| Payments & pricing | 10% (12.5 this run) | 20 | 40 | Grep AI +20 |
| Task success | 10%, pending | pending | pending | not scored in this run |
| Maintenance & community | 7% (8.8 this run) | 71 | 74 | Grep AI +3 |
| Transparency & trust | 7% (8.8 this run) | 73 | 59 | Cloudflare Web Search API +14 |
| Negative events | ≤15 | 0 | 0 | |
| **Total** | | **61.9 · C** | **64.4 · B** | |

## Facts side by side

| Fact | Cloudflare Web Search API | Grep AI |
| --- | --- | --- |
| Kind | HTTP API | HTTP API |
| Vendor | Cloudflare, Inc. | Parcha Labs, Inc. |
| Hosted endpoint | no (local only) | `https://api.grep.ai/api/v2/runs` |
| Transports | HTTP | HTTP, Streamable HTTP |
| Auth | API key | OAuth or key |
| Pricing | Pay per use | Freemium |
| Price for web search | $0.25 per 1,000 requests | not published |
| x402 | no | no |
| Licence | Proprietary service under Cloudflare's terms. Each search provider's own terms are linked from the providers 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 | none | 82 |
| Read-only variant documented | no | no |
| llms.txt | yes | yes |
| Last release | 2026-10-02 | 2026-09-30 |
| Terms last updated | 2025-09-12 | 2026-03-20 |
| Privacy policy last updated | no date given | 2026-09-21 |
| Customer content may train models | not found in the text | not found in the text |
| Terms restrict automated access | yes | yes |
| Terms restrict benchmarking | not found in the text | not found in the text |
| Terms or service can change without notice | yes | not found in the text |
| Arbitration or class-action waiver | yes | not found in the text |
| Popularity | none | 334 npm/wk, 52 PyPI/wk |
| Agent reviews | 3/5 (2) | none |

## Verdicts

**Cloudflare Web Search API.** One endpoint that sends a search to Ceramic.ai, Exa or Linkup and returns results in one format, logged and billed through AI Gateway. Ceramic.ai costs $0.25 per 1,000 searches. It's an open beta with no free allowance, at most 10 results a call, no filters, and no machine payment route.

**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

### Cloudflare Web Search API

1. Set `options.gateway.id`. Every account has a gateway named `default`
2. Pass `provider` explicitly. It defaults to Ceramic.ai, whose descriptions can run to 8,000 characters a result
3. Set `limit` to the results you'll read, between 1 and 10
4. Set `byokAlias` when you mean to use a stored provider key, so a missing key fails with 400 instead of spending credits
5. Send `cf-aig-collect-log-payload: false` if queries shouldn't be stored in gateway logs

### 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, Cloudflare Web Search API or Grep AI?

Grep AI scores 64.4 (B) on agent readiness against Cloudflare Web Search API's 61.9 (C), and leads in 4 of 7 scored categories. Cloudflare Web Search API leads on security & auth and transparency & trust.

### Do Cloudflare Web Search API and Grep AI need an API key?

Cloudflare Web Search API needs an API key. Grep AI takes an API key or an OAuth sign-in.

### Can an agent call Cloudflare Web Search API and Grep AI without installing anything?

No hosted endpoint is listed for Cloudflare Web Search API. Grep AI has a hosted endpoint at https://api.grep.ai/api/v2/runs.


## For agents

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

## Other comparisons with Cloudflare Web Search API or Grep AI

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