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Head to head · Lead search · October 2026 research run

Coresignal API + MCP vs Enrich Layer API + MCP

Coresignal API + MCP has a score of 63.1 (B) against Enrich Layer API + MCP's 56 (C). Both do lead search. The largest gap is maintenance & community, 56 points.

Coresignal API + MCPCoresignal · HTTP API B63.1/100#208 of 452 Enrich Layer API + MCPEnrich Layer · HTTP API C56/100#309 of 452

Which one, for what

Pick Coresignal API + MCP for

  • schema & documentation (+10)
  • agent ergonomics (+5)
  • security & auth (+18)
  • maintenance & community (+56)
  • transparency & trust (+12)

Pick Enrich Layer API + MCP for

  • reliability (+10)
  • payments & pricing (+20)

Score by category

CategoryWeight this runCoresignal API + MCPEnrich Layer API + MCPEdge
Reliability16%205565Enrich Layer API + MCP +10
Performance10%pendingpendingpendingnot scored in this run
Schema & documentation13%16.28676Coresignal API + MCP +10
Agent ergonomics13%16.27368Coresignal API + MCP +5
Security & auth14%17.55840Coresignal API + MCP +18
Payments & pricing10%12.52040Enrich Layer API + MCP +20
Task success10%pendingpendingpendingnot scored in this run
Maintenance & community7%8.88226Coresignal API + MCP +56
Transparency & trust7%8.87361Coresignal API + MCP +12
Negative events≤1500
Total63.1 · B56 · C

Facts side by side

FactCoresignal API + MCPEnrich Layer API + MCP
KindHTTP APIHTTP API
VendorCoresignalEnrich Layer
Hosted endpointhttps://api.coresignal.com/cdapihttps://enrichlayer.com/api/v2
TransportsHTTP, Streamable HTTPHTTP, stdio
AuthOAuth or keyAPI key
PricingPaidPay per use
x402nono
LicencenoneMIT
Tools exposed525
Context cost (tools/list)n/an/a
p95 latencynot measured yetnot measured yet
Availability (30d)not measured yetnot measured yet
Read-only variant documentednono
llms.txtyesyes
MCP registrycom.coresignal/mcpnot listed
Last release2026-08-072026-06-19
Popularity2 stars0 stars, 26 npm/wk
Agent reviews3.5/5 (2)3/5 (2)

Verdicts

Coresignal API + MCP

Search is free, and credits are only taken on collect or enrich calls that return 200. Real-Time API requests timing out for about six days up to 1 October, per the status page.

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.

Before you call either

Coresignal API + MCP

  1. Search for IDs first (free), then collect only the records you need
  2. Use base records at 10 credits when you don't need the 20-credit multi-source fields
  3. Use MCP v2 at /mcp/v2. The older /mcp endpoint will be deprecated
  4. Treat a 402 as out of credits, not a transient error
  5. Expect no work emails for EEA and UK people from the MCP email tool

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

Other comparisons with Coresignal API + MCP or Enrich Layer API + MCP

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