Get an audit

Head to head · Backlink data · October 2026 research run

Majestic API vs Moz API

Moz API scores 45.3 (E) on agent readiness against Majestic API's 33.4 (F), and leads in every scored category. Both do backlink data.

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

Majestic APIMajestic (Majestic-12 Limited) · HTTP API F33.4/100#937 of 950 Moz APISEOmoz, Inc. · HTTP API E45.3/100#867 of 950

Which one, for what

Majestic API F

Good for An agent that needs backlink, referring domain, anchor text and Trust Flow data in volume for an owner who already pays for the API plan.

No category where it leads by five points or more, and no fact that sets it apart.

Watch for

Clause 14.1(f) of the supply terms forbids querying Majestic's database or servers with automated tools without prior permission. This matters before any probe is run

Moz API E

Good for Agents that need Domain Authority, backlink lists, link intersects, keyword volume and difficulty, search intent and ranking keywords at a low entry price, on a read-only data set.

Ahead on

  • Reliability, 42 against 17
  • Schema & documentation, 50 against 44
  • Agent ergonomics, 74 against 54
  • Security & auth, 38 against 32
  • Payments & pricing, 20 against 15
  • Maintenance & community, 28 against 22
  • Transparency & trust, 59 against 53

Watch for

No working public status page was found, and moz.statuspage.io reports the Moz Status page as inactive

Score by category

CategoryWeight this runMajestic APIMoz APIEdge
Reliability16%201742Moz API +25
Performance10%pendingpendingpendingnot scored in this run
Schema & documentation13%16.24450Moz API +6
Agent ergonomics13%16.25474Moz API +20
Security & auth14%17.53238Moz API +6
Payments & pricing10%12.51520Moz API +5
Task success10%pendingpendingpendingnot scored in this run
Maintenance & community7%8.82228Moz API +6
Transparency & trust7%8.85359Moz API +6
Negative events≤1500
Total33.4 · F45.3 · E

Facts side by side

FactMajestic APIMoz API
KindHTTP APIHTTP API
VendorMajestic (Majestic-12 Limited)SEOmoz, Inc.
Hosted endpointhttps://api.majestic.comhttps://api.moz.com/jsonrpc
TransportsHTTPHTTP, Streamable HTTP
AuthAPI keyAPI key
PricingPaidFreemium
x402nono
LicenceProprietary service under Majestic's Terms and Conditions. The Python 3 connector on GitHub carries a BSD-style licence fileProprietary service under the Moz API General Conditions (effective 12 August 2026 for new subscribers). Displaying Moz data to others requires attribution under the API legal page
Read-only variant documentednono
llms.txtyesno
Last releasenone2026-08-14
Terms last updatedno date given2026-08-12
Privacy policy last updated2026-04-012025-04-08
Customer content may train modelsnot found in the textnot found in the text
Terms restrict automated accessyesnot found in the text
Terms restrict benchmarkingnot found in the textyes
Terms or service can change without noticeyesyes
Arbitration or class-action waivernot found in the textyes
Popularity3 starsnone

Verdicts

Majestic API

Each command's cost in units is published and a sandbox endpoint returns sample data without spending allowance. API access starts at $399.99 a month with no trial, and no OpenAPI file, status page, numeric rate limit, SLA or API changelog was found. The supply terms require permission before querying with automated tools.

Moz API

The JSON-RPC API documents every error code, its rate limits and the row cost of each method, and failed validation uses no quota. No working status page, SLA, machine-readable spec or official SDK was found. Tokens carry no scopes, and the free plan needs a credit card.

Before you call either

Majestic API

  1. Send requests by HTTPS POST with app_api_key in the body. The docs show GET URLs for demonstration only and plain HTTP still works
  2. Always set datasource=fresh or datasource=historic. Without it the Historic Index is used when the plan includes it
  3. Call GetSubscriptionInfo (no cost) before a large pull. GetBackLinkData spends 5,000 analysis units a call plus one retrieval unit a row
  4. Read columns by header name, not position. The docs say column order can change between requests and Majestic may vary rows and columns at any time
  5. Develop against https://developer.majestic.com/api/json, which costs no units, then switch the host to api.majestic.com
  6. Ask the owner to confirm Majestic's permission for automated querying first. Clause 14.1(f) of the terms requires it

Moz API

  1. Send a request id of at least 24 characters (letters, numbers and hyphens). A UUID works. Shorter ids are rejected with -32654.
  2. Stop on a 401. Ten 401 or 403 responses in five minutes block the caller for 30 minutes.
  3. On 429 with code -32658 wait the Retry-After seconds. On code -32650 no wait time is given, so back off exponentially.
  4. Call quota.lookup (free) before large pulls. List methods charge one row per result, and limit is capped at 50 on link lists.
  5. Poll async.call.lookup for data.keyword.serp.generate, and collect the result within 20 seconds of first seeing it complete.

Questions

Which is better for AI agents, Majestic API or Moz API?

Moz API scores 45.3 (E) on agent readiness against Majestic API's 33.4 (F), and leads in every scored category.

Do Majestic API and Moz API need an API key?

Both need an API key.

Can an agent call Majestic API and Moz API without installing anything?

Yes. Majestic API has a hosted endpoint at https://api.majestic.com and Moz API at https://api.moz.com/jsonrpc.

Other comparisons with Majestic API or Moz API

Machine-readable

For companies

Do agents find, use and choose your tools?

An agent-readiness audit runs our probes, task suite and eight reviewer agents against your public and internal tools, and comes back with a scorecard, the transcripts of what failed, and a fix list in priority order. From $2,500, re-run included. We never take payment to move a rank. We do help companies earn one.

Get an auditSee a sample report