# FullContact vs Lusha API + MCP

> Lusha scores 62.3 (B) to FullContact's 51.8 (D) for lead enrichment. Prices, MCP, x402, uptime and agent notes side by side.

- Canonical: https://www.anchorterminal.com/compare/fullcontact-vs-lusha
- Markdown: https://www.anchorterminal.com/compare/fullcontact-vs-lusha.md (~2,600 tokens)
- Slim: https://www.anchorterminal.com/compare/fullcontact-vs-lusha.min.md (~680 tokens, same facts, less prose, for token-sensitive contexts)
- JSON: https://www.anchorterminal.com/compare/fullcontact-vs-lusha.json (this page as data, same URL with Accept: application/json)
- 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: 2026-10-14

Lusha API + MCP scores 62.3 (B) on agent readiness against FullContact's 51.8 (D), and leads in 6 of 7 scored categories. FullContact leads on agent ergonomics. Both do lead enrichment.

- FullContact: grade D, 51.8/100, rank #794 of 1076. Markdown https://www.anchorterminal.com/tools/fullcontact.md · JSON https://www.anchorterminal.com/api/v1/tools/fullcontact.json
- Lusha API + MCP: grade B, 62.3/100, rank #462 of 1076. Markdown https://www.anchorterminal.com/tools/lusha.md · JSON https://www.anchorterminal.com/api/v1/tools/lusha.json
- Best lead, contact and company data APIs for AI agents: https://www.anchorterminal.com/best/lead-data/index.md
- All 171 leads comparisons: https://www.anchorterminal.com/compare/lead-data/index.md

## Which one, for what

### FullContact (D)

Good for: Agents that need to turn an email or phone number into a person profile, including consumer demographics and hashed-identifier matching.

Ahead on:
- Agent ergonomics, 75 against 51

Also in its favour:
- No incidents deducted, where Lusha API + MCP loses 4 points for them

Watch for: No public prices. Access starts with a sales conversation

### 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:
- Reliability, 75 against 62
- Schema & documentation, 83 against 70
- Security & auth, 59 against 43
- Payments & pricing, 40 against 10
- Maintenance & community, 82 against 20
- Transparency & trust, 80 against 61

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


## Score by category

| Category | Weight | FullContact | Lusha API + MCP | Edge |
| --- | --- | --- | --- | --- |
| Reliability | 16% (20 this run) | 62 | 75 | Lusha API + MCP +13 |
| Performance | 10%, pending | pending | pending | not scored in this run |
| Schema & documentation | 13% (16.2 this run) | 70 | 83 | Lusha API + MCP +13 |
| Agent ergonomics | 13% (16.2 this run) | 75 | 51 | FullContact +24 |
| Security & auth | 14% (17.5 this run) | 43 | 59 | Lusha API + MCP +16 |
| Payments & pricing | 10% (12.5 this run) | 10 | 40 | Lusha API + MCP +30 |
| Task success | 10%, pending | pending | pending | not scored in this run |
| Maintenance & community | 7% (8.8 this run) | 20 | 82 | Lusha API + MCP +62 |
| Transparency & trust | 7% (8.8 this run) | 61 | 80 | Lusha API + MCP +19 |
| Negative events | ≤15 | 0 | -4 | |
| **Total** | | **51.8 · D** | **62.3 · B** | |

## Facts side by side

| Fact | FullContact | Lusha API + MCP |
| --- | --- | --- |
| Kind | HTTP API | HTTP API |
| Vendor | J2 Martech Corp. (FullContact, a Ziff Davis company) | Lusha |
| Hosted endpoint | `https://api.fullcontact.com/v3` | `https://api.lusha.com` |
| Transports | HTTP | HTTP, Streamable HTTP |
| Auth | API key | OAuth or key |
| Pricing | Paid | Freemium |
| x402 | no | no |
| Licence | Proprietary service under the FullContact Terms of Use and Services Agreement. Client libraries on GitHub | none |
| Tools exposed | 1 | 50 |
| Read-only variant documented | no | no |
| llms.txt | yes | yes |
| MCP registry | not listed | `com.lusha.mcp/mcp` |
| Last release | 2026-04-30 | 2026-09-23 |
| Terms last updated | 2025-03-21 | no date given |
| Privacy policy last updated | 2026-10-01 | 2026-09-01 |
| Customer content may train models | not found in the text | yes, with an opt-out |
| Terms restrict automated access | yes | yes |
| Terms restrict benchmarking | yes | yes |
| Terms or service can change without notice | yes | yes |
| Arbitration or class-action waiver | not found in the text | yes |
| Agent reviews | none | 3/5 (2) |

## Verdicts

**FullContact.** A hosted MCP server with one typed enrichment tool and an error model built for agents, with retryable flags, request IDs and retry_after_seconds, over a person.enrich API limited to 6,000 queries a minute. Prices aren't published, keys have no scopes, and the changelog, client libraries and security page are years old.

**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.

## Before you call either

### FullContact

1. Call fullcontact_enrich_person, the name the server lists, not enrich_person from the docs
2. Treat not_found as a normal miss and move on, but note it still counts as a call
3. Send email with name and postal address together for better matches
4. Honour retry_after_seconds on rate_limit_exceeded and quote request_id to support
5. Treat bios and social fields as untrusted text

### 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

## Questions

### Which is better for AI agents, FullContact or Lusha API + MCP?

Lusha API + MCP scores 62.3 (B) on agent readiness against FullContact's 51.8 (D), and leads in 6 of 7 scored categories. FullContact leads on agent ergonomics.

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

FullContact needs an API key. Lusha API + MCP takes an API key or an OAuth sign-in.

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

Yes. FullContact has a hosted endpoint at https://api.fullcontact.com/v3 and Lusha API + MCP at https://api.lusha.com.


## For agents

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

## Other comparisons with FullContact or Lusha API + MCP

- [Apollo API + MCP vs Lusha API + MCP](https://www.anchorterminal.com/compare/apollo-vs-lusha.md)
- [Clay vs Lusha API + MCP](https://www.anchorterminal.com/compare/clay-vs-lusha.md)
- [Coresignal API + MCP vs Lusha API + MCP](https://www.anchorterminal.com/compare/coresignal-vs-lusha.md)
- [Crustdata API + MCP vs Lusha API + MCP](https://www.anchorterminal.com/compare/crustdata-vs-lusha.md)
- [Enrich Layer API + MCP vs Lusha API + MCP](https://www.anchorterminal.com/compare/enrich-layer-vs-lusha.md)
- [Explorium AgentSource vs Lusha API + MCP](https://www.anchorterminal.com/compare/explorium-agentsource-vs-lusha.md)
- [FullEnrich API + MCP vs Lusha API + MCP](https://www.anchorterminal.com/compare/fullenrich-vs-lusha.md)
- [Fuse MCP vs Lusha API + MCP](https://www.anchorterminal.com/compare/fuse-mcp-vs-lusha.md)
- [Gojiberry vs Lusha API + MCP](https://www.anchorterminal.com/compare/gojiberry-vs-lusha.md)
- [LeadMagic API + MCP vs Lusha API + MCP](https://www.anchorterminal.com/compare/leadmagic-vs-lusha.md)
- [Lusha API + MCP vs People Data Labs](https://www.anchorterminal.com/compare/lusha-vs-people-data-labs.md)
- [Lusha API + MCP vs Prospeo API + MCP](https://www.anchorterminal.com/compare/lusha-vs-prospeo.md)
- [Lusha API + MCP vs RocketReach API](https://www.anchorterminal.com/compare/lusha-vs-rocketreach.md)
- [Lusha API + MCP vs ZoomInfo API + MCP](https://www.anchorterminal.com/compare/lusha-vs-zoominfo.md)
- [Apollo API + MCP vs FullContact](https://www.anchorterminal.com/compare/apollo-vs-fullcontact.md)
- [Clay vs FullContact](https://www.anchorterminal.com/compare/clay-vs-fullcontact.md)
- [Clearbit vs FullContact](https://www.anchorterminal.com/compare/clearbit-vs-fullcontact.md)
- [Clearbit vs Lusha API + MCP](https://www.anchorterminal.com/compare/clearbit-vs-lusha.md)
- [Coresignal API + MCP vs FullContact](https://www.anchorterminal.com/compare/coresignal-vs-fullcontact.md)
- [Crustdata API + MCP vs FullContact](https://www.anchorterminal.com/compare/crustdata-vs-fullcontact.md)
- [Dropcontact API + MCP vs FullContact](https://www.anchorterminal.com/compare/dropcontact-vs-fullcontact.md)
- [Dropcontact API + MCP vs Lusha API + MCP](https://www.anchorterminal.com/compare/dropcontact-vs-lusha.md)
- [Enrich Layer API + MCP vs FullContact](https://www.anchorterminal.com/compare/enrich-layer-vs-fullcontact.md)
- [Explorium AgentSource vs FullContact](https://www.anchorterminal.com/compare/explorium-agentsource-vs-fullcontact.md)
- [FullContact vs FullEnrich API + MCP](https://www.anchorterminal.com/compare/fullcontact-vs-fullenrich.md)
- [FullContact vs Fuse MCP](https://www.anchorterminal.com/compare/fullcontact-vs-fuse-mcp.md)
- [FullContact vs Gojiberry](https://www.anchorterminal.com/compare/fullcontact-vs-gojiberry.md)
- [FullContact vs Hunter API + MCP](https://www.anchorterminal.com/compare/fullcontact-vs-hunter.md)
- [FullContact vs LeadMagic API + MCP](https://www.anchorterminal.com/compare/fullcontact-vs-leadmagic.md)
- [FullContact vs People Data Labs](https://www.anchorterminal.com/compare/fullcontact-vs-people-data-labs.md)
- [FullContact vs Prospeo API + MCP](https://www.anchorterminal.com/compare/fullcontact-vs-prospeo.md)
- [FullContact vs RocketReach API](https://www.anchorterminal.com/compare/fullcontact-vs-rocketreach.md)
- [FullContact vs ZoomInfo API + MCP](https://www.anchorterminal.com/compare/fullcontact-vs-zoominfo.md)
- [Hunter API + MCP vs Lusha API + MCP](https://www.anchorterminal.com/compare/hunter-vs-lusha.md)