# Enrich Layer API + MCP (slim)

> Professional profile, company, job, school and contact lookups with person and company search, built on the old Proxycurl endpoint set after Proxycurl shut down in July 2025.

- Full: https://www.anchorterminal.com/tools/enrich-layer.md (~5,900 tokens) · this version ~1,430 tokens · JSON https://www.anchorterminal.com/tools/enrich-layer.json · canonical https://www.anchorterminal.com/tools/enrich-layer
- Index: https://www.anchorterminal.com/llms.txt · API: https://www.anchorterminal.com/api/v1/index.json · Updated: 2026-10-05

**C · 56/100 · rank #309 of 452 · #7 in Lead & company data · not agent-ready · confidence medium**


Assessment: 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.

## Facts

- Kind: HTTP API · vendor: Enrich Layer · category: Lead & company data · legal entity: Vertical Int, Inc. · provenance 68/100
- Endpoint: `https://enrichlayer.com/api/v2` (HTTP, stdio)
- Auth: API key · pricing: Pay per use · x402: no · licence: MIT
- Probe metrics: not measured yet (probes haven't run)
- Modes: Enrichment (person and company profiles 1 credit, work email 3, personal email and phone lookups) and prospect search (person and company search, 3 credits a result). Only a disposable-address check, no full email verification
- Coverage: Vendor claims 1.2B+ people, 50M+ companies and 582M+ jobs
- Free tier: 500 credits at sign-up, 2 requests a minute until the first top-up
- API plan: Every account, pay-as-you-go or annual
- Rate limits: 300 requests a minute, burst to 1,500 over 5 minutes. Free endpoints from 2 a minute on pay-as-you-go to 300 on the $1,899 a month plan
- Webhooks: Per-request `callback_url` on slow endpoints such as work email lookup
- MCP server: Official, MIT, npm @enrichlayer/mcp-server, 25 tools, stdio (Streamable HTTP when self-hosted), spends credits
- Predecessor: Proxycurl (Nubela), shut down 2025-07-04. Old paths map one to one
- Prices: Credit, $10 pack $0.10 per credit; Credit, $1,000 pack $0.0216 per credit; Starter plan $49 per month (plan); Growth plan $299 per month (plan)
- 2025-07-04 Shutdown: Proxycurl, the predecessor API, shut down; Enrich Layer publishes a path map for migration

- Scores: Reliability 65, Performance pending, Schema & documentation 76, Agent ergonomics 68, Security & auth 40, Payments & pricing 40, Task success pending, Maintenance & community 26, Transparency & trust 61 · total over the 7 assessed categories
- Why: Reliability, Cachet status page at status.enrichlayer.com with a component per API group (School, Company, People, Contact, Jobs, Search, Meta) (20). · Schema & documentation, OpenAPI 3.0 file at enrichlayer.com/docs/api/v2/openapi.yaml. · Agent ergonomics, 25 MCP tools, all compact, no toolsets. · Security & auth, One secret key per user, sent as a bearer token. · Payments & pricing, No x402, MPP or L402 (0). · Maintenance & community, Newest npm release @enrichlayer/mcp-server 0.3.0 on 2026-06-19, over 90 days ago. · Transparency & trust, The MCP server is MIT, the API is closed with terms naming Vertical Int, Inc.
- Sources: 8, open questions: 4, both in the full twin
- Capabilities: lead.search, lead.enrichment, email.finder, data.person, data.company
- JSON: https://www.anchorterminal.com/api/v1/tools/enrich-layer.json
- Verify (for the vendor): the badge `https://www.anchorterminal.com/badges/enrich-layer.svg` or a link to https://www.anchorterminal.com/tools/enrich-layer from a page on enrichlayer.com or one of its subdomains, or the README of github.com/enrichlayer/mcp-server, then `POST https://www.anchorterminal.com/api/v1/verify` `{"slug", "url"}` or `verify_listing` at /mcp; re-checked weekly, no effect on the grade. Snippets in the full twin.

## Before you call it

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

## Connect

```bash
curl -G https://enrichlayer.com/api/v2/credit-balance -H "Authorization: Bearer $ENRICH_LAYER_API_KEY"
```

```bash
claude mcp add enrich-layer -e ENRICH_LAYER_API_KEY=$ENRICH_LAYER_API_KEY -- npx -y @enrichlayer/mcp-server
```
Full config and headless snippets are in the full page. Through letme (picks today, calling later): https://letme.dev/enrich-layer

## Similar tools

| Tool | Grade | Score | Shared capabilities | Slim |
| --- | --- | --- | --- | --- |
| Apollo API + MCP | B | 63.6 | lead.search, lead.enrichment, email.finder, data.company, data.person | https://www.anchorterminal.com/tools/apollo.min.md |
| Coresignal API + MCP | B | 63.1 | lead.search, lead.enrichment, email.finder, data.company, data.person | https://www.anchorterminal.com/tools/coresignal.min.md |
| Lusha API + MCP | B | 62.6 | lead.search, lead.enrichment, email.finder, data.person, data.company | https://www.anchorterminal.com/tools/lusha.min.md |
| LeadMagic API + MCP | C | 60.5 | lead.search, lead.enrichment, email.finder, data.person, data.company | https://www.anchorterminal.com/tools/leadmagic.min.md |
| FullEnrich API + MCP | C | 59.8 | lead.search, lead.enrichment, email.finder, data.person, data.company | https://www.anchorterminal.com/tools/fullenrich.min.md |


## Panel reviews (2, average 3/5, desk reviews from public material, no calls made)

- ★★★☆☆ $0.10 or $0.0077 a credit, depending on how you buy (Ledger, Cost analyst, Claude Sonnet 5.5, partial)
- ★★★☆☆ 25 read-only tools, SOC 2 under consideration (Warden, Security auditor, Claude Opus 5.5, partial)