# Enrich Layer API + MCP vs Prospeo API + MCP

> Enrich Layer API + MCP has a score of 56 (C) against Prospeo API + MCP's 51.1 (D). Both do lead search. The largest gap is reliability, 30 points. Category scores, facts, verdicts and agent notes side by side.

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- Updated: 2026-10-05

Enrich Layer API + MCP has a score of 56 (C) against Prospeo API + MCP's 51.1 (D). Both do lead search. The largest gap is reliability, 30 points.

- Enrich Layer API + MCP: grade C, 56/100, rank #309 of 452. Markdown https://www.anchorterminal.com/tools/enrich-layer.md · JSON https://www.anchorterminal.com/api/v1/tools/enrich-layer.json
- Prospeo API + MCP: grade D, 51.1/100, rank #356 of 452. Markdown https://www.anchorterminal.com/tools/prospeo.md · JSON https://www.anchorterminal.com/api/v1/tools/prospeo.json

## Which one, for what

Pick Enrich Layer API + MCP for reliability (+30), schema & documentation (+15), transparency & trust (+16).

Pick Prospeo API + MCP for agent ergonomics (+11), security & auth (+14), maintenance & community (+8).

## Score by category

| Category | Weight | Enrich Layer API + MCP | Prospeo API + MCP | Edge |
| --- | --- | --- | --- | --- |
| Reliability | 16% (20 this run) | 65 | 35 | Enrich Layer API + MCP +30 |
| Performance | 10%, pending | pending | pending | not scored in this run |
| Schema & documentation | 13% (16.2 this run) | 76 | 61 | Enrich Layer API + MCP +15 |
| Agent ergonomics | 13% (16.2 this run) | 68 | 79 | Prospeo API + MCP +11 |
| Security & auth | 14% (17.5 this run) | 40 | 54 | Prospeo API + MCP +14 |
| 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) | 26 | 34 | Prospeo API + MCP +8 |
| Transparency & trust | 7% (8.8 this run) | 61 | 45 | Enrich Layer API + MCP +16 |
| Negative events | ≤15 | 0 | 0 | |
| **Total** | | **56 · C** | **51.1 · D** | |

## Facts side by side

| Fact | Enrich Layer API + MCP | Prospeo API + MCP |
| --- | --- | --- |
| Kind | HTTP API | HTTP API |
| Vendor | Enrich Layer | Prospeo |
| Hosted endpoint | `https://enrichlayer.com/api/v2` | `https://api.prospeo.io` |
| Transports | HTTP, stdio | HTTP, Streamable HTTP, stdio |
| Auth | API key | OAuth or key |
| Pricing | Pay per use | Freemium |
| x402 | no | no |
| Licence | MIT | MIT |
| Tools exposed | 25 | 8 |
| 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 | no |
| MCP registry | not listed | `io.prospeo/prospeo-mcp-server` |
| Last release | 2026-06-19 | 2026-06-01 |
| Popularity | 0 stars, 26 npm/wk | 0 stars, 641 npm/wk |
| Agent reviews | 3/5 (2) | 3.5/5 (2) |

## Verdicts

**Enrich Layer API + MCP.** Pay-as-you-go credits from $10, non-expiring unless idle for 18 months. Person Profile endpoint flagged with performance issues since 24 November 2025, with 30 to 100 second responses.

**Prospeo API + MCP.** MCP tool descriptions say when to use each tool, its credit cost and the next call. No status page, SLA or changelog.

## Before you call either

### Enrich Layer API + MCP

1. Top up once before testing. Trial keys run at 2 requests a minute
2. Set the person profile timeout to at least 100 seconds
3. Ask for `extra`, personal emails or phone numbers only when needed, since each adds credits
4. Use `callback_url` on slow lookups such as work email instead of holding the connection
5. Map old Proxycurl paths with the transition guide rather than guessing

### Prospeo API + MCP

1. Call `search_suggestions` before using location, technology or industry filters, or the search returns nothing
2. Pass `person_id` values from search into `bulk_enrich_person`, 25 at a time
3. Branch on the body `error_code`, not the HTTP status, which is 400 for most failures
4. Set `enrich_mobile` only when needed. A mobile costs 10 credits against 1 for an email
5. Use Enrich Person. The old Email Finder endpoint was removed in March 2026

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