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Head to head · Seo keywords · October 2026 research run

DataForSEO vs SE Ranking API + MCP

DataForSEO scores 64.9 (B) on agent readiness against SE Ranking API + MCP's 50.9 (D), and leads in 6 of 7 scored categories. Both do seo keywords.

DataForSEODataForSEO OÜ · HTTP API B64.9/100#304 of 841 SE Ranking API + MCPSE Ranking (SER Acquisition Inc.) · HTTP API D50.9/100#681 of 841

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 51
  • Schema & documentation, 86 against 58
  • Agent ergonomics, 84 against 58
  • Security & auth, 45 against 21

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

SE Ranking API + MCP D

Good for An agent that needs keyword, backlink, domain and AI search visibility data at a published price per call, or that manages rank tracking projects for an SE Ranking customer.

Also in its favour

  • No incidents deducted, where DataForSEO loses 6 points for them

Watch for

No scoped or read-only keys. The MCP docs say a key has the same access as the account, including Project API deletes

Score by category

CategoryWeight this runDataForSEOSE Ranking API + MCPEdge
Reliability16%208451DataForSEO +33
Performance10%pendingpendingpendingnot scored in this run
Schema & documentation13%16.28658DataForSEO +28
Agent ergonomics13%16.28458DataForSEO +26
Security & auth14%17.54521DataForSEO +24
Payments & pricing10%12.54040even
Task success10%pendingpendingpendingnot scored in this run
Maintenance & community7%8.88279DataForSEO +3
Transparency & trust7%8.87471DataForSEO +3
Negative events≤15-60
Total64.9 · B50.9 · D

Facts side by side

FactDataForSEOSE Ranking API + MCP
KindHTTP APIHTTP API
VendorDataForSEO OÜSE Ranking (SER Acquisition Inc.)
Hosted endpointhttps://api.dataforseo.com/v3/https://api.seranking.com
TransportsHTTP, Streamable HTTP, stdioHTTP, Streamable HTTP
AuthOAuth or keyOAuth or key
PricingPay per usePay per use
Price for seo keywords$0.06 per call$0.002 per record
x402nono
LicenceProprietary service under DataForSEO's terms of service. The MCP server is Apache-2.0 and the Python client is MITProprietary service under the SE Ranking API Terms of Service. The OpenAPI file and the Claude skills on GitHub are MIT
Tools exposed4none
Read-only variant documentednoyes
llms.txtyesno
MCP registrynot listedcom.seranking/mcp
Last release2026-10-062026-09-28
Terms last updated2026-06-12no date given
Privacy policy last updated2026-07-242026-06-25
Customer content may train modelsnot found in the textnot found in the text
Terms restrict automated accessnot found in the textyes
Terms restrict benchmarkingnot found in the textyes
Terms or service can change without noticenot found in the textyes
Arbitration or class-action waivernot found in the textnot found in the text
Popularity251 stars, 32k npm/wk, 50k PyPI/wk0 stars

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.

SE Ranking API + MCP

Every Data API endpoint has a published credit cost, credits sell from $50 for 250,000 with no expiry, and a 14-day trial needs no card. Keys carry full account access with no scopes or read-only mode, the key may travel in the URL, and no security page, SLA or llms.txt was found.

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

SE Ranking API + MCP

  1. Send the key as Authorization: Token <key>, not Bearer and not ?apikey=, so it stays out of URLs and logs
  2. Call GET /v1/account/subscription (0 credits) and read units_left before a large pull. A short balance returns Insufficient funds
  3. Set limit and cols on per-record endpoints. Backlink summaries cost 100 credits a target and keyword rows 10 credits each
  4. Stay under 10 requests a second on the Data API and 5 on the Project API per key. Repeated overruns block the Project API for 10 minutes
  5. Ask the owner before any Project API or PROJECT_* create, update or delete call. The key has no read-only mode and nothing confirms a delete

Questions

Which is better for AI agents, DataForSEO or SE Ranking API + MCP?

DataForSEO scores 64.9 (B) on agent readiness against SE Ranking API + MCP's 50.9 (D), and leads in 6 of 7 scored categories.

Do DataForSEO and SE Ranking API + MCP need an API key?

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

Can an agent call DataForSEO and SE Ranking API + MCP without installing anything?

Yes. DataForSEO has a hosted endpoint at https://api.dataforseo.com/v3/ and SE Ranking API + MCP at https://api.seranking.com.

Other comparisons with DataForSEO or SE Ranking API + MCP

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