Head to head · Seo keywords · October 2026 research run
DataForSEO vs Semrush API + MCP
DataForSEO scores 64.9 (B) on agent readiness against Semrush API + MCP's 53.1 (D), and leads in 6 of 7 scored categories. Semrush API + MCP leads on security & auth. Both do seo keywords.
Which one, for what
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 34
- Schema & documentation, 86 against 70
- Agent ergonomics, 84 against 77
- Payments & pricing, 40 against 17
- Maintenance & community, 82 against 57
- Transparency & trust, 74 against 67
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
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
- Security & auth, 54 against 45
Also in its favour
- No incidents deducted, where DataForSEO loses 6 points for them
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 this run | DataForSEO | Semrush API + MCP | Edge |
|---|---|---|---|---|
| Reliability | 16%20 | 84 | 34 | DataForSEO +50 |
| Performance | 10%pending | pending | pending | not scored in this run |
| Schema & documentation | 13%16.2 | 86 | 70 | DataForSEO +16 |
| Agent ergonomics | 13%16.2 | 84 | 77 | DataForSEO +7 |
| Security & auth | 14%17.5 | 45 | 54 | Semrush API + MCP +9 |
| Payments & pricing | 10%12.5 | 40 | 17 | DataForSEO +23 |
| Task success | 10%pending | pending | pending | not scored in this run |
| Maintenance & community | 7%8.8 | 82 | 57 | DataForSEO +25 |
| Transparency & trust | 7%8.8 | 74 | 67 | DataForSEO +7 |
| Negative events | ≤15 | -6 | 0 | |
| Total | 64.9 · B | 53.1 · D |
Facts side by side
| Fact | DataForSEO | Semrush API + MCP |
|---|---|---|
| Kind | HTTP API | HTTP API |
| Vendor | DataForSEO OÜ | Semrush Inc. (an Adobe company) |
| Hosted endpoint | https://api.dataforseo.com/v3/ | https://api.semrush.com |
| Transports | HTTP, Streamable HTTP, stdio | HTTP, Streamable HTTP |
| Auth | OAuth or key | OAuth or key |
| Pricing | Pay per use | Paid |
| Price for seo keywords | $0.06 per call | not published |
| 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 Semrush terms of service |
| Tools exposed | 4 | 14 |
| Read-only variant documented | no | yes |
| llms.txt | yes | yes |
| Last release | 2026-10-06 | 2026-09-04 |
| Terms last updated | 2026-06-12 | 2026-08-25 |
| Privacy policy last updated | 2026-07-24 | 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 | 251 stars, 32k npm/wk, 50k PyPI/wk | none |
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.
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
DataForSEO
- Check
status_codeon the response and on every task. HTTP 200 is returned for most errors, and 20000 or 20100 means success - Append
.aito Live and Task GET paths to get the trimmed response. The MCPapi_requesttool does this unlessnoAiModeis true - Build against https://sandbox.dataforseo.com/v3/ first. It is free and returns dummy data in the production structure
- Use the standard queue (
task_post, thentask_getor apostback_url) for bulk work. Live Google Ads endpoints allow 12 requests a minute - Ask the account owner to set daily cost limits and an IP whitelist, since the credentials carry the whole prepaid balance
Semrush API + MCP
- Use the MCP server at https://mcp.semrush.com/v2/mcp where the host supports it. Call a discovery tool, then
get_report_schema, thenexecute_report - Set
limitordisplay_limiton every per-line report. A backlinks row costs 40 to 45 units and a historical keyword row 50 - Check the unit balance before large pulls. A per-line report returns only the lines the balance covers, with no error
- 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 - Stay under 10 requests a second and 10 concurrent requests per account, and retry only when
error.retryableis true
Questions
Which is better for AI agents, DataForSEO or Semrush API + MCP?
DataForSEO scores 64.9 (B) on agent readiness against Semrush API + MCP's 53.1 (D), and leads in 6 of 7 scored categories. Semrush API + MCP leads on security & auth.
Do DataForSEO and Semrush API + MCP need an API key?
Both take an API key or an OAuth sign-in.
Can an agent call DataForSEO and Semrush API + MCP without installing anything?
Yes. DataForSEO has a hosted endpoint at https://api.dataforseo.com/v3/ and Semrush API + MCP at https://api.semrush.com.
Other comparisons with DataForSEO or Semrush API + MCP
Machine-readable
- This page as Markdown
/compare/dataforseo-vs-semrush.md· slim.min.md· JSON.json(or sendAccept: text/markdown) - Each listing in full
/api/v1/tools/dataforseo.json·/api/v1/tools/semrush.json - From a terminal
anchor compare dataforseo semrush(the CLI) - Over MCP
compare_tools {"a": "dataforseo", "b": "semrush"}at/mcp, no key