# DataForSEO vs Keywords Everywhere API + MCP

> DataForSEO scores 64.9 (B) 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/dataforseo-vs-keywords-everywhere
- Markdown: https://www.anchorterminal.com/compare/dataforseo-vs-keywords-everywhere.md (~2,550 tokens)
- Slim: https://www.anchorterminal.com/compare/dataforseo-vs-keywords-everywhere.min.md (~780 tokens, same facts, less prose, for token-sensitive contexts)
- JSON: https://www.anchorterminal.com/compare/dataforseo-vs-keywords-everywhere.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

DataForSEO scores 64.9 (B) on agent readiness against Keywords Everywhere API + MCP's 47.2 (D), and leads in 6 of 7 scored categories. Both do keyword data.

- DataForSEO: grade B, 64.9/100, rank #333 of 950. Markdown https://www.anchorterminal.com/tools/dataforseo.md · JSON https://www.anchorterminal.com/api/v1/tools/dataforseo.json
- 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
- 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

### DataForSEO (B)

Good for: Agents and products that need raw SEO data in bulk at a low unit price, across SERPs, keyword volumes, backlinks, ranked keywords and traffic estimates, and that can work with a task queue.

Ahead on:
- Reliability, 84 against 42
- Schema & documentation, 86 against 48
- Agent ergonomics, 84 against 54
- Payments & pricing, 40 against 20
- Maintenance & community, 82 against 63
- Transparency & trust, 74 against 68

Also in its favour:
- Runs on your own machine

Watch for: The REST API takes one account-wide login and password over HTTP Basic, with no scopes or read-only credential

### 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.

Also in its favour:
- No incidents deducted, where DataForSEO loses 6 points for them

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


## Score by category

| Category | Weight | DataForSEO | Keywords Everywhere API + MCP | Edge |
| --- | --- | --- | --- | --- |
| Reliability | 16% (20 this run) | 84 | 42 | DataForSEO +42 |
| Performance | 10%, pending | pending | pending | not scored in this run |
| Schema & documentation | 13% (16.2 this run) | 86 | 48 | DataForSEO +38 |
| Agent ergonomics | 13% (16.2 this run) | 84 | 54 | DataForSEO +30 |
| Security & auth | 14% (17.5 this run) | 45 | 47 | Keywords Everywhere API + MCP +2 |
| Payments & pricing | 10% (12.5 this run) | 40 | 20 | DataForSEO +20 |
| Task success | 10%, pending | pending | pending | not scored in this run |
| Maintenance & community | 7% (8.8 this run) | 82 | 63 | DataForSEO +19 |
| Transparency & trust | 7% (8.8 this run) | 74 | 68 | DataForSEO +6 |
| Negative events | ≤15 | -6 | 0 | |
| **Total** | | **64.9 · B** | **47.2 · D** | |

## Facts side by side

| Fact | DataForSEO | Keywords Everywhere API + MCP |
| --- | --- | --- |
| Kind | HTTP API | HTTP API |
| Vendor | DataForSEO OÜ | Keywords Everywhere (Axeman Technology Solutions LLP) |
| Hosted endpoint | `https://api.dataforseo.com/v3/` | `https://api.keywordseverywhere.com` |
| Transports | HTTP, Streamable HTTP, stdio | HTTP, Streamable HTTP |
| Auth | OAuth or key | OAuth or key |
| Pricing | Pay per use | Paid |
| Price for keyword data | $0.06 per call | $0.0008 per record |
| x402 | no | no |
| Licence | Proprietary service under DataForSEO's terms of service. The MCP server is Apache-2.0 and the Python client is MIT | Proprietary service under the Keywords Everywhere Terms of Service. The vendor's n8n community node on npm is MIT |
| Tools exposed | 4 | 14 |
| Read-only variant documented | no | yes |
| llms.txt | yes | no |
| MCP registry | not listed | `com.keywordseverywhere/keywords-everywhere` |
| Last release | 2026-10-06 | 2026-09-10 |
| Terms last updated | 2026-06-12 | 2023-05-30 |
| Privacy policy last updated | 2026-07-24 | 2025-08-15 |
| Customer content may train models | not found in the text | not found in the text |
| Terms restrict automated access | not found in the text | not found in the text |
| Terms restrict benchmarking | not found in the text | not found in the text |
| 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 | not found in the text |
| Popularity | 251 stars, 32k npm/wk, 50k PyPI/wk | 7 npm/wk |

## Verdicts

**DataForSEO.** Per-request prices are public for every endpoint, a $1 credit and a free sandbox need no payment, and the status feed shows no incident since 15 June 2026. The REST API accepts one account-wide login and password with no scopes, and no SLA or security certification was found in the reviewed pages.

**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.

## Before you call either

### DataForSEO

1. Check `status_code` on the response and on every task. HTTP 200 is returned for most errors, and 20000 or 20100 means success
2. Append `.ai` to Live and Task GET paths to get the trimmed response. The MCP `api_request` tool does this unless `noAiMode` is true
3. Build against https://sandbox.dataforseo.com/v3/ first. It is free and returns dummy data in the production structure
4. Use the standard queue (`task_post`, then `task_get` or a `postback_url`) for bulk work. Live Google Ads endpoints allow 12 requests a minute
5. Ask the account owner to set daily cost limits and an IP whitelist, since the credentials carry the whole prepaid balance

### 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

## Questions

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

DataForSEO scores 64.9 (B) on agent readiness against Keywords Everywhere API + MCP's 47.2 (D), and leads in 6 of 7 scored categories.

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

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

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

Yes. DataForSEO has a hosted endpoint at https://api.dataforseo.com/v3/ and Keywords Everywhere API + MCP at https://api.keywordseverywhere.com.


## For agents

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

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