# Keywords Everywhere API + MCP vs Semrush API + MCP

> Semrush scores 53.1 (D) to Keywords Everywhere's 47.2 (D) for keyword data. Prices, MCP, x402, uptime and agent notes side by side.

- Canonical: https://www.anchorterminal.com/compare/keywords-everywhere-vs-semrush
- Markdown: https://www.anchorterminal.com/compare/keywords-everywhere-vs-semrush.md (~2,550 tokens)
- Slim: https://www.anchorterminal.com/compare/keywords-everywhere-vs-semrush.min.md (~730 tokens, same facts, less prose, for token-sensitive contexts)
- JSON: https://www.anchorterminal.com/compare/keywords-everywhere-vs-semrush.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: 2026-10-09

Semrush API + MCP scores 53.1 (D) on agent readiness against Keywords Everywhere API + MCP's 47.2 (D), and leads in 3 of 7 scored categories. Keywords Everywhere API + MCP leads on reliability and maintenance & community. Both do keyword data.

- Keywords Everywhere API + MCP: grade D, 47.2/100, rank #836 of 950. Markdown https://www.anchorterminal.com/tools/keywords-everywhere.md · JSON https://www.anchorterminal.com/api/v1/tools/keywords-everywhere.json
- Semrush API + MCP: grade D, 53.1/100, rank #721 of 950. Markdown https://www.anchorterminal.com/tools/semrush.md · JSON https://www.anchorterminal.com/api/v1/tools/semrush.json
- Best SEO and search visibility data for AI agents: https://www.anchorterminal.com/best/seo/index.md
- All 45 seo comparisons: https://www.anchorterminal.com/compare/seo/index.md

## Which one, for what

### Keywords Everywhere API + MCP (D)

Good for: An agent that needs Google Keyword Planner volume, CPC and competition for lists of keywords at a low price per keyword, plus keyword ideas and a quick view of a site's ranking keywords, traffic estimate and top backlinks.

Ahead on:
- Reliability, 42 against 34
- Maintenance & community, 63 against 57

Watch for: No free credits or trial. Data calls need an annual plan, from $84 for 100,000 credits that expire after a year

### Semrush API + MCP (D)

Good for: Teams already paying for Semrush who want an agent to pull keyword, backlink, ranking and traffic estimates in one place, mainly through the MCP server.

Ahead on:
- Schema & documentation, 70 against 48
- Agent ergonomics, 77 against 54
- Security & auth, 54 against 47

Watch for: Domain, URL, Trends, Position Tracking and Site Audit reports are version 3 only, where the one key is a URL parameter and can't be revoked


## Score by category

| Category | Weight | Keywords Everywhere API + MCP | Semrush API + MCP | Edge |
| --- | --- | --- | --- | --- |
| Reliability | 16% (20 this run) | 42 | 34 | Keywords Everywhere API + MCP +8 |
| Performance | 10%, pending | pending | pending | not scored in this run |
| Schema & documentation | 13% (16.2 this run) | 48 | 70 | Semrush API + MCP +22 |
| Agent ergonomics | 13% (16.2 this run) | 54 | 77 | Semrush API + MCP +23 |
| Security & auth | 14% (17.5 this run) | 47 | 54 | Semrush API + MCP +7 |
| Payments & pricing | 10% (12.5 this run) | 20 | 17 | Keywords Everywhere API + MCP +3 |
| Task success | 10%, pending | pending | pending | not scored in this run |
| Maintenance & community | 7% (8.8 this run) | 63 | 57 | Keywords Everywhere API + MCP +6 |
| Transparency & trust | 7% (8.8 this run) | 68 | 67 | Keywords Everywhere API + MCP +1 |
| Negative events | ≤15 | 0 | 0 | |
| **Total** | | **47.2 · D** | **53.1 · D** | |

## Facts side by side

| Fact | Keywords Everywhere API + MCP | Semrush API + MCP |
| --- | --- | --- |
| Kind | HTTP API | HTTP API |
| Vendor | Keywords Everywhere (Axeman Technology Solutions LLP) | Semrush Inc. (an Adobe company) |
| Hosted endpoint | `https://api.keywordseverywhere.com` | `https://api.semrush.com` |
| Transports | HTTP, Streamable HTTP | HTTP, Streamable HTTP |
| Auth | OAuth or key | OAuth or key |
| Pricing | Paid | Paid |
| Price for keyword data | $0.0008 per record | not published |
| x402 | no | no |
| Licence | Proprietary service under the Keywords Everywhere Terms of Service. The vendor's n8n community node on npm is MIT | Proprietary service under the Semrush terms of service |
| Tools exposed | 14 | 14 |
| Read-only variant documented | yes | yes |
| llms.txt | no | yes |
| MCP registry | `com.keywordseverywhere/keywords-everywhere` | not listed |
| Last release | 2026-09-10 | 2026-09-04 |
| Terms last updated | 2023-05-30 | 2026-08-25 |
| Privacy policy last updated | 2025-08-15 | 2025-10-13 |
| Customer content may train models | not found in the text | not found in the text |
| Terms restrict automated access | not found in the text | yes |
| Terms restrict benchmarking | not found in the text | yes |
| Terms or service can change without notice | not found in the text | not found in the text |
| Arbitration or class-action waiver | not found in the text | yes |
| Popularity | 7 npm/wk | none |

## Verdicts

**Keywords Everywhere API + MCP.** Fourteen read-only lookups with a published credit cost each, available over REST and a hosted MCP server listed in the official registry. Data needs an annual plan from $84, with no trial. No OpenAPI file, no REST rate limit and no API changelog were found, and the status page shows outages on seven of the last 90 days.

**Semrush API + MCP.** The hosted MCP server exposes 14 tools that load a report's parameters on demand, and version 4 API keys can be read-only, time-limited and revoked. Most reports still sit in version 3, whose single key travels in the URL and can't be revoked. No status page, OpenAPI file or API unit price was found.

## Before you call either

### Keywords Everywhere API + MCP

1. Send the key as `Authorization: Bearer <key>` to `https://api.keywordseverywhere.com/v1`. The same key works on the MCP server
2. Call `GET /v1/account/credits` (free) before a large pull. A short balance returns 402 with `402 Insufficient Credits`
3. Set `num` on domain, URL and backlink lookups. It accepts 1 to 10,000 and every returned row is charged 1, 2 or 5 credits
4. Batch up to 100 keywords in one `get_keyword_data` call and set `country`. Without it the figures are global
5. Keep MCP use under 120 tool calls a minute per account, and wait a minute after a Too many requests error

### Semrush API + MCP

1. Use the MCP server at https://mcp.semrush.com/v2/mcp where the host supports it. Call a discovery tool, then `get_report_schema`, then `execute_report`
2. Set `limit` or `display_limit` on every per-line report. A backlinks row costs 40 to 45 units and a historical keyword row 50
3. Check the unit balance before large pulls. A per-line report returns only the lines the balance covers, with no error
4. Send the version 4 key as `Authorization: Apikey <key>`, never as `?key=`. Version 3 accepts only the query parameter, so keep those URLs out of logs
5. Stay under 10 requests a second and 10 concurrent requests per account, and retry only when `error.retryable` is true

## Questions

### Which is better for AI agents, Keywords Everywhere API + MCP or Semrush API + MCP?

Semrush API + MCP scores 53.1 (D) on agent readiness against Keywords Everywhere API + MCP's 47.2 (D), and leads in 3 of 7 scored categories. Keywords Everywhere API + MCP leads on reliability and maintenance & community.

### Do Keywords Everywhere API + MCP and Semrush API + MCP need an API key?

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

### Can an agent call Keywords Everywhere API + MCP and Semrush API + MCP without installing anything?

Yes. Keywords Everywhere API + MCP has a hosted endpoint at https://api.keywordseverywhere.com and Semrush API + MCP at https://api.semrush.com.


## For agents

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

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