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Head to head · Lead search · October 2026 research run

Crustdata API + MCP vs ZoomInfo API + MCP

ZoomInfo API + MCP scores 72.2 (BB) on agent readiness against Crustdata API + MCP's 53.4 (D), and leads in 5 of 7 scored categories. Crustdata API + MCP leads on schema & documentation. Both do lead search.

Crustdata API + MCPCrustdata · HTTP API D53.4/100#630 of 841 ZoomInfo API + MCPZoomInfo Technologies LLC · HTTP API BB72.2/100#106 of 841

Which one, for what

Crustdata API + MCP D

Good for Agents that monitor companies, people, jobs or posts over time and need change notifications.

Ahead on

  • Schema & documentation, 89 against 84

Watch for

No status page and no SLA

ZoomInfo API + MCP BB

Good for Sales and marketing agents that need company, contact, intent and business-event data from one vendor, with free search before paid enrichment.

Ahead on

  • Reliability, 87 against 45
  • Security & auth, 65 against 56
  • Payments & pricing, 40 against 5
  • Maintenance & community, 76 against 67
  • Transparency & trust, 75 against 55

Also in its favour

  • Agent-ready, a grade of BB or better
  • No incidents deducted, where Crustdata API + MCP loses 3 points for them

Watch for

The Licence Terms and Conditions bar disclosing benchmark results and automated access outside ZoomInfo's own tools without written approval

Score by category

CategoryWeight this runCrustdata API + MCPZoomInfo API + MCPEdge
Reliability16%204587ZoomInfo API + MCP +42
Performance10%pendingpendingpendingnot scored in this run
Schema & documentation13%16.28984Crustdata API + MCP +5
Agent ergonomics13%16.27371Crustdata API + MCP +2
Security & auth14%17.55665ZoomInfo API + MCP +9
Payments & pricing10%12.5540ZoomInfo API + MCP +35
Task success10%pendingpendingpendingnot scored in this run
Maintenance & community7%8.86776ZoomInfo API + MCP +9
Transparency & trust7%8.85575ZoomInfo API + MCP +20
Negative events≤15-30
Total53.4 · D72.2 · BB

Facts side by side

FactCrustdata API + MCPZoomInfo API + MCP
KindHTTP APIHTTP API
VendorCrustdataZoomInfo Technologies LLC
Hosted endpointhttps://api.crustdata.comhttps://api.zoominfo.com/gtm
TransportsHTTP, Streamable HTTPHTTP, Streamable HTTP
AuthOAuth or keyOAuth
PricingPay per useFreemium
x402nono
LicencenoneProprietary service under ZoomInfo's Licence Terms and Conditions. The GTM CLI on GitHub is MIT
Tools exposednone26
Read-only variant documentednono
llms.txtyesyes
Last releasenone2026-10-02
Terms last updatedno date givenno date given
Privacy policy last updated2025-05-192025-10-13
Customer content may train modelsnot found in the textyes, with an opt-out
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 textnot found in the text
Arbitration or class-action waivernot found in the textyes
Popularitynone534 npm/wk
Agent reviews2.5/5 (2)none

Verdicts

Crustdata API + MCP

Per-field credit prices, readable per account from /account/endpoints, and X-Credits-Used on every response. No status page and no SLA.

ZoomInfo API + MCP

Search, lookup and similar-record calls cost no credits, and a free account with 1,000 data and 1,000 AI credits needs no card. OAuth carries 20 scopes and limits are published per package. The Licence Terms and Conditions bar disclosing benchmark results, and the two documentation sites disagree on batch sizes and rate-limit headers.

Before you call either

Crustdata API + MCP

  1. Always send x-api-version: 2025-11-01. Unpinned calls get the latest version
  2. Call /account/endpoints first to see what your plan enables and what each field costs
  3. Ask only for the premium field groups you need, since each one bills
  4. Poll GET /batch/{id} before submitting more batch jobs. Active jobs count against a cap of 5 to 30
  5. Read the crustdata://catalog resource before calling MCP tools

ZoomInfo API + MCP

  1. Call Lookup first and pass the returned IDs to Search. Unknown industry, metro or topic strings are rejected with a 422
  2. Search before Enrich. Search is free, and each newly enriched record costs one data credit
  3. Request only the scopes the task needs in the scope parameter of the token call. Omitting it grants every scope configured on the app
  4. On 429 read X-RateLimit-Rejected-Bucket and wait for Retry-After. An exhausted hourly window can mean a wait of several hundred seconds
  5. Turn off model training in the AI client before connecting the MCP server. ZoomInfo prohibits MCP data being used for training

Questions

Which is better for AI agents, Crustdata API + MCP or ZoomInfo API + MCP?

ZoomInfo API + MCP scores 72.2 (BB) on agent readiness against Crustdata API + MCP's 53.4 (D), and leads in 5 of 7 scored categories. Crustdata API + MCP leads on schema & documentation.

Do Crustdata API + MCP and ZoomInfo API + MCP need an API key?

Crustdata API + MCP takes an API key or an OAuth sign-in. ZoomInfo API + MCP uses an OAuth sign-in.

Can an agent call Crustdata API + MCP and ZoomInfo API + MCP without installing anything?

Yes. Crustdata API + MCP has a hosted endpoint at https://api.crustdata.com and ZoomInfo API + MCP at https://api.zoominfo.com/gtm.

Other comparisons with Crustdata API + MCP or ZoomInfo API + MCP

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