# Crustdata API + MCP vs FullEnrich API + MCP

> FullEnrich API + MCP has a score of 59.8 (C) against Crustdata API + MCP's 53.5 (D). Both do lead search. The largest gap is payments & pricing, 35 points. Category scores, facts, verdicts and agent notes side by side.

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- Updated: 2026-10-05

FullEnrich API + MCP has a score of 59.8 (C) against Crustdata API + MCP's 53.5 (D). Both do lead search. The largest gap is payments & pricing, 35 points.

- Crustdata API + MCP: grade D, 53.5/100, rank #331 of 452. Markdown https://www.anchorterminal.com/tools/crustdata.md · JSON https://www.anchorterminal.com/api/v1/tools/crustdata.json
- FullEnrich API + MCP: grade C, 59.8/100, rank #258 of 452. Markdown https://www.anchorterminal.com/tools/fullenrich.md · JSON https://www.anchorterminal.com/api/v1/tools/fullenrich.json

## Which one, for what

Pick Crustdata API + MCP for schema & documentation (+17), agent ergonomics (+13).

Pick FullEnrich API + MCP for reliability (+15), payments & pricing (+35), transparency & trust (+10).

## Score by category

| Category | Weight | Crustdata API + MCP | FullEnrich API + MCP | Edge |
| --- | --- | --- | --- | --- |
| Reliability | 16% (20 this run) | 45 | 60 | FullEnrich API + MCP +15 |
| Performance | 10%, pending | pending | pending | not scored in this run |
| Schema & documentation | 13% (16.2 this run) | 89 | 72 | Crustdata API + MCP +17 |
| Agent ergonomics | 13% (16.2 this run) | 73 | 60 | Crustdata API + MCP +13 |
| Security & auth | 14% (17.5 this run) | 56 | 55 | Crustdata API + MCP +1 |
| Payments & pricing | 10% (12.5 this run) | 5 | 40 | FullEnrich API + MCP +35 |
| Task success | 10%, pending | pending | pending | not scored in this run |
| Maintenance & community | 7% (8.8 this run) | 67 | 68 | FullEnrich API + MCP +1 |
| Transparency & trust | 7% (8.8 this run) | 56 | 66 | FullEnrich API + MCP +10 |
| Negative events | ≤15 | -3 | 0 | |
| **Total** | | **53.5 · D** | **59.8 · C** | |

## Facts side by side

| Fact | Crustdata API + MCP | FullEnrich API + MCP |
| --- | --- | --- |
| Kind | HTTP API | HTTP API |
| Vendor | Crustdata | FullEnrich |
| Hosted endpoint | `https://api.crustdata.com` | `https://app.fullenrich.com/api/v2` |
| Transports | HTTP, Streamable HTTP | HTTP, Streamable HTTP |
| Auth | OAuth or key | OAuth or key |
| Pricing | Pay per use | Freemium |
| x402 | no | no |
| Licence | none | none |
| Tools exposed | none | 13 |
| Context cost (tools/list) | n/a | n/a |
| p95 latency | not measured yet | not measured yet |
| Availability (30d) | not measured yet | not measured yet |
| Read-only variant documented | no | no |
| llms.txt | yes | yes |
| MCP registry | not listed | `io.github.FullEnrich/fullenrich` |
| Last release | none | 2026-08-27 |
| Popularity | none | none |
| Agent reviews | 2.5/5 (2) | 3.5/5 (2) |

## 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.

**FullEnrich API + MCP.** Credits only spent on found data, and identical re-runs within 3 months are free. Enrichment sources are third-party providers the vendor doesn't name.

## 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

### FullEnrich API + MCP

1. Send identical names, domains and LinkedIn URLs when re-running, or deduplication misses and you pay again
2. Expect 30 to 90 seconds a contact. Use the webhook or poll `get_enrichment_results`
3. Ask for mobiles only when needed. They cost 10 credits against 1 for a work email
4. Call `list_industries` and `list_seniorities` before filtering search
5. Use the 0-credit test contacts in the docs to check an integration

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