# Lusha API + MCP vs ZoomInfo API + MCP

> ZoomInfo API + MCP scores 72.2 (BB) on agent readiness against Lusha API + MCP's 62.3 (B), and leads in 4 of 7 scored categories. Lusha API + MCP leads on maintenance & community and transparency & trust. Both do lead search. Category scores, facts, verdicts and agent notes side…

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- Slim: https://www.anchorterminal.com/compare/lusha-vs-zoominfo.min.md (~630 tokens, same facts, less prose, for token-sensitive contexts)
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- Site index for agents: https://www.anchorterminal.com/llms.txt (full text: https://www.anchorterminal.com/llms-full.txt)
- API: https://www.anchorterminal.com/api/v1/index.json
- Updated: 2026-10-09

ZoomInfo API + MCP scores 72.2 (BB) on agent readiness against Lusha API + MCP's 62.3 (B), and leads in 4 of 7 scored categories. Lusha API + MCP leads on maintenance & community and transparency & trust. Both do lead search.

- Lusha API + MCP: grade B, 62.3/100, rank #393 of 842. Markdown https://www.anchorterminal.com/tools/lusha.md · JSON https://www.anchorterminal.com/api/v1/tools/lusha.json
- ZoomInfo API + MCP: grade BB, 72.2/100, rank #106 of 842. Markdown https://www.anchorterminal.com/tools/zoominfo.md · JSON https://www.anchorterminal.com/api/v1/tools/zoominfo.json

## Which one, for what

### Lusha API + MCP (B)

Good for: Sales teams that want contact and company enrichment, signals and prospecting from one vendor, with a free plan to start.

Ahead on:
- Maintenance & community, 82 against 76
- Transparency & trust, 80 against 75

Watch for: At least 1 credit per request even when nothing matches

### 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 75
- Agent ergonomics, 71 against 51
- Security & auth, 65 against 59

Also in its favour:
- Agent-ready, a grade of BB or better
- No incidents deducted, where Lusha API + MCP loses 4 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

| Category | Weight | Lusha API + MCP | ZoomInfo API + MCP | Edge |
| --- | --- | --- | --- | --- |
| Reliability | 16% (20 this run) | 75 | 87 | ZoomInfo API + MCP +12 |
| Performance | 10%, pending | pending | pending | not scored in this run |
| Schema & documentation | 13% (16.2 this run) | 83 | 84 | ZoomInfo API + MCP +1 |
| Agent ergonomics | 13% (16.2 this run) | 51 | 71 | ZoomInfo API + MCP +20 |
| Security & auth | 14% (17.5 this run) | 59 | 65 | ZoomInfo API + MCP +6 |
| Payments & pricing | 10% (12.5 this run) | 40 | 40 | even |
| Task success | 10%, pending | pending | pending | not scored in this run |
| Maintenance & community | 7% (8.8 this run) | 82 | 76 | Lusha API + MCP +6 |
| Transparency & trust | 7% (8.8 this run) | 80 | 75 | Lusha API + MCP +5 |
| Negative events | ≤15 | -4 | 0 | |
| **Total** | | **62.3 · B** | **72.2 · BB** | |

## Facts side by side

| Fact | Lusha API + MCP | ZoomInfo API + MCP |
| --- | --- | --- |
| Kind | HTTP API | HTTP API |
| Vendor | Lusha | ZoomInfo Technologies LLC |
| Hosted endpoint | `https://api.lusha.com` | `https://api.zoominfo.com/gtm` |
| Transports | HTTP, Streamable HTTP | HTTP, Streamable HTTP |
| Auth | OAuth or key | OAuth |
| Pricing | Freemium | Freemium |
| x402 | no | no |
| Licence | none | Proprietary service under ZoomInfo's Licence Terms and Conditions. The GTM CLI on GitHub is MIT |
| Tools exposed | 50 | 26 |
| Read-only variant documented | no | no |
| llms.txt | yes | yes |
| MCP registry | `com.lusha.mcp/mcp` | not listed |
| Last release | 2026-09-23 | 2026-10-02 |
| Terms last updated | no date given | no date given |
| Privacy policy last updated | 2026-09-01 | 2025-10-13 |
| Customer content may train models | yes, with an opt-out | yes, with an opt-out |
| Terms restrict automated access | yes | yes |
| Terms restrict benchmarking | yes | yes |
| Terms or service can change without notice | yes | not found in the text |
| Arbitration or class-action waiver | yes | yes |
| Popularity | none | 534 npm/wk |
| Agent reviews | 3/5 (2) | none |

## Verdicts

**Lusha API + MCP.** API key on every plan, including Free with 40 credits a month. At least 1 credit per request even when nothing matches.

**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

### Lusha API + MCP

1. Batch up to 25 contacts a request. A single bulk request costs 1 credit, not 1 per contact
2. Ask for phones only when needed. A phone is 5 credits against 1 for an email
3. Use the Buying Group endpoint. Decision Makers was retired on 2026-09-04
4. Use `/v3/lookalike/contacts` for contact lookalikes
5. Back off exponentially on 429. Free keys stop at 100 requests a day

### 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, Lusha API + MCP or ZoomInfo API + MCP?

ZoomInfo API + MCP scores 72.2 (BB) on agent readiness against Lusha API + MCP's 62.3 (B), and leads in 4 of 7 scored categories. Lusha API + MCP leads on maintenance & community and transparency & trust.

### Do Lusha API + MCP and ZoomInfo API + MCP need an API key?

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

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

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


## For agents

- This comparison as JSON: https://www.anchorterminal.com/compare/lusha-vs-zoominfo.json, and with the fewest tokens: https://www.anchorterminal.com/compare/lusha-vs-zoominfo.min.md
- Over MCP at https://www.anchorterminal.com/mcp (no key): `compare_tools {"a": "lusha", "b": "zoominfo"}`. From a terminal: `anchor compare lusha zoominfo`
- Each listing in full: https://www.anchorterminal.com/api/v1/tools/lusha.json and https://www.anchorterminal.com/api/v1/tools/zoominfo.json

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