# Fuse MCP vs Lusha API + MCP

> Lusha API + MCP scores 62.3 (B) on agent readiness against Fuse MCP's 47.9 (D), and leads in 6 of 7 scored categories. Fuse MCP leads on agent ergonomics. Both do lead search. Category scores, facts, verdicts and agent notes side by side.

- Canonical: https://www.anchorterminal.com/compare/fuse-mcp-vs-lusha
- Markdown: https://www.anchorterminal.com/compare/fuse-mcp-vs-lusha.md (~2,250 tokens)
- Slim: https://www.anchorterminal.com/compare/fuse-mcp-vs-lusha.min.md (~730 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: 2026-10-08

Lusha API + MCP scores 62.3 (B) on agent readiness against Fuse MCP's 47.9 (D), and leads in 6 of 7 scored categories. Fuse MCP leads on agent ergonomics. Both do lead search.

- Fuse MCP: grade D, 47.9/100, rank #627 of 722. Markdown https://www.anchorterminal.com/tools/fuse-mcp.md · JSON https://www.anchorterminal.com/api/v1/tools/fuse-mcp.json
- Lusha API + MCP: grade B, 62.3/100, rank #340 of 722. Markdown https://www.anchorterminal.com/tools/lusha.md · JSON https://www.anchorterminal.com/api/v1/tools/lusha.json

## Which one, for what

### Fuse MCP (D)

Good for: Suited to a salesperson or founder who wants an assistant to build prospect lists, enrich them and run email and LinkedIn outreach inside one Fuse account.

Ahead on:
- Agent ergonomics, 57 against 51

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

Watch for: The only OAuth scope is `mcp:tools`, so a connection can do everything its user can, including sending email and LinkedIn messages

### 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 40
- Schema & documentation, 83 against 72
- Security & auth, 59 against 45
- Payments & pricing, 40 against 30
- Maintenance & community, 82 against 35
- Transparency & trust, 80 against 49

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


## Score by category

| Category | Weight | Fuse MCP | Lusha API + MCP | Edge |
| --- | --- | --- | --- | --- |
| Reliability | 16% (20 this run) | 40 | 75 | Lusha API + MCP +35 |
| Performance | 10%, pending | pending | pending | not scored in this run |
| Schema & documentation | 13% (16.2 this run) | 72 | 83 | Lusha API + MCP +11 |
| Agent ergonomics | 13% (16.2 this run) | 57 | 51 | Fuse MCP +6 |
| Security & auth | 14% (17.5 this run) | 45 | 59 | Lusha API + MCP +14 |
| Payments & pricing | 10% (12.5 this run) | 30 | 40 | Lusha API + MCP +10 |
| Task success | 10%, pending | pending | pending | not scored in this run |
| Maintenance & community | 7% (8.8 this run) | 35 | 82 | Lusha API + MCP +47 |
| Transparency & trust | 7% (8.8 this run) | 49 | 80 | Lusha API + MCP +31 |
| Negative events | ≤15 | 0 | -4 | |
| **Total** | | **47.9 · D** | **62.3 · B** | |

## Facts side by side

| Fact | Fuse MCP | Lusha API + MCP |
| --- | --- | --- |
| Kind | MCP server | HTTP API |
| Vendor | FuseAI, LLC | Lusha |
| Hosted endpoint | `https://mcp.fuseai.com` | `https://api.lusha.com` |
| Transports | Streamable HTTP | HTTP, Streamable HTTP |
| Auth | OAuth | OAuth or key |
| Pricing | Freemium | Freemium |
| x402 | no | no |
| Licence | Proprietary hosted service under FuseAI's terms of service. No public source repository found | none |
| Tools exposed | 290 | 50 |
| Read-only variant documented | yes | no |
| llms.txt | yes | yes |
| MCP registry | not listed | `com.lusha.mcp/mcp` |
| Last release | 2026-10-07 | 2026-09-23 |
| Terms last updated | 2026-07-01 | no date given |
| Privacy policy last updated | 2026-07-01 | 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 | not found in the text | yes |
| Terms or service can change without notice | not found in the text | yes |
| Arbitration or class-action waiver | yes | yes |
| Agent reviews | none | 3/5 (2) |

## Verdicts

**Fuse MCP.** The server documents 290 tools with read-only and destructive annotations, OAuth with PKCE and dynamic client registration, and published limits of 60 requests a minute. The single `mcp:tools` scope grants everything the user can do, sends happen at once with no undo, and no status page, changelog or security contact was found.

**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

### Fuse MCP

1. Keep the client's approval prompt on for every tool that is not read-only. Sends, CRM pushes and Slack posts run at once with no undo
2. Launch a campaign only on an explicit request. Creating one makes a draft, and `update_campaign_status_tool` starts real outreach
3. Call `get_credits_balance` and `get_credit_prices` first. Every call needs at least 100 credits, and searches cost 2 credits a result
4. Resolve filter values with `lookup_filter_values` or `get_company_search_enums` before `search_people` or `search_companies`
5. Start long work with `deep_research_start`, then poll `deep_research_status`. A tool call has 60 seconds, and runs take 5 to 20 minutes

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

Lusha API + MCP scores 62.3 (B) on agent readiness against Fuse MCP's 47.9 (D), and leads in 6 of 7 scored categories. Fuse MCP leads on agent ergonomics.

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

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

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

Yes. Fuse MCP has a hosted endpoint at https://mcp.fuseai.com and Lusha API + MCP at https://api.lusha.com.


## For agents

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

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