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Head to head · Keyword data · October 2026 research run

Keywords Everywhere API + MCP vs SE Ranking API + MCP

SE Ranking API + MCP scores 50.9 (D) on agent readiness against Keywords Everywhere API + MCP's 47.2 (D), and leads in 6 of 7 scored categories. Keywords Everywhere API + MCP leads on security & auth. Both do keyword data. Keywords Everywhere API + MCP is cheaper for keyword data, $0.0008 against $0.002 per record.

Best SEO and search visibility data for AI agents · All 45 seo comparisons

Keywords Everywhere API + MCPKeywords Everywhere (Axeman Technology Solutions LLP) · HTTP API D47.2/100#836 of 950 SE Ranking API + MCPSE Ranking (SER Acquisition Inc.) · HTTP API D50.9/100#763 of 950

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

  • Security & auth, 47 against 21

Also in its favour

  • Cheaper for keyword data, $0.0008 against $0.002 per record

Watch for

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

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.

Ahead on

  • Reliability, 51 against 42
  • Schema & documentation, 58 against 48
  • Payments & pricing, 40 against 20
  • Maintenance & community, 79 against 63

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 runKeywords Everywhere API + MCPSE Ranking API + MCPEdge
Reliability16%204251SE Ranking API + MCP +9
Performance10%pendingpendingpendingnot scored in this run
Schema & documentation13%16.24858SE Ranking API + MCP +10
Agent ergonomics13%16.25458SE Ranking API + MCP +4
Security & auth14%17.54721Keywords Everywhere API + MCP +26
Payments & pricing10%12.52040SE Ranking API + MCP +20
Task success10%pendingpendingpendingnot scored in this run
Maintenance & community7%8.86379SE Ranking API + MCP +16
Transparency & trust7%8.86871SE Ranking API + MCP +3
Negative events≤1500
Total47.2 · D50.9 · D

Facts side by side

FactKeywords Everywhere API + MCPSE Ranking API + MCP
KindHTTP APIHTTP API
VendorKeywords Everywhere (Axeman Technology Solutions LLP)SE Ranking (SER Acquisition Inc.)
Hosted endpointhttps://api.keywordseverywhere.comhttps://api.seranking.com
TransportsHTTP, Streamable HTTPHTTP, Streamable HTTP
AuthOAuth or keyOAuth or key
PricingPaidPay per use
Price for keyword data$0.0008 per record$0.002 per record
x402nono
LicenceProprietary service under the Keywords Everywhere Terms of Service. The vendor's n8n community node on npm is MITProprietary service under the SE Ranking API Terms of Service. The OpenAPI file and the Claude skills on GitHub are MIT
Tools exposed14none
Read-only variant documentedyesyes
llms.txtnono
MCP registrycom.keywordseverywhere/keywords-everywherecom.seranking/mcp
Last release2026-09-102026-09-28
Terms last updated2023-05-30no date given
Privacy policy last updated2025-08-152026-06-25
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
Popularity7 npm/wk0 stars

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.

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

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

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, Keywords Everywhere API + MCP or SE Ranking API + MCP?

SE Ranking API + MCP scores 50.9 (D) on agent readiness against Keywords Everywhere API + MCP's 47.2 (D), and leads in 6 of 7 scored categories. Keywords Everywhere API + MCP leads on security & auth.

Which is cheaper for keyword data, Keywords Everywhere API + MCP or SE Ranking API + MCP?

Keywords Everywhere API + MCP, at $0.0008 per record against $0.002 per record for SE Ranking API + MCP. These are the vendors' published prices for the job.

Do Keywords Everywhere API + MCP and SE Ranking 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 SE Ranking API + MCP without installing anything?

Yes. Keywords Everywhere API + MCP has a hosted endpoint at https://api.keywordseverywhere.com and SE Ranking API + MCP at https://api.seranking.com.

Other comparisons with Keywords Everywhere API + MCP or SE Ranking API + MCP

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