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Head to head · Lead enrichment · October 2026 research run

Coresignal API + MCP vs Dropcontact API + MCP

Coresignal API + MCP has a score of 63.1 (B) against Dropcontact API + MCP's 51.1 (D). Both do lead enrichment. The largest gap is maintenance & community, 64 points.

Coresignal API + MCPCoresignal · HTTP API B63.1/100#208 of 452 Dropcontact API + MCPDropcontact · HTTP API D51.1/100#355 of 452

Which one, for what

Pick Coresignal API + MCP for

  • schema & documentation (+45)
  • agent ergonomics (+13)
  • maintenance & community (+64)

Pick Dropcontact API + MCP for

  • payments & pricing (+20)

Score by category

CategoryWeight this runCoresignal API + MCPDropcontact API + MCPEdge
Reliability16%205557Dropcontact API + MCP +2
Performance10%pendingpendingpendingnot scored in this run
Schema & documentation13%16.28641Coresignal API + MCP +45
Agent ergonomics13%16.27360Coresignal API + MCP +13
Security & auth14%17.55859Dropcontact API + MCP +1
Payments & pricing10%12.52040Dropcontact API + MCP +20
Task success10%pendingpendingpendingnot scored in this run
Maintenance & community7%8.88218Coresignal API + MCP +64
Transparency & trust7%8.87373even
Negative events≤1500
Total63.1 · B51.1 · D

Facts side by side

FactCoresignal API + MCPDropcontact API + MCP
KindHTTP APIHTTP API
VendorCoresignalDropcontact
Hosted endpointhttps://api.coresignal.com/cdapihttps://api.dropcontact.com/v1
TransportsHTTP, Streamable HTTPHTTP, Streamable HTTP
AuthOAuth or keyOAuth or key
PricingPaidPaid
x402nono
Licencenonenone
Tools exposed5none
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.txtyesno
MCP registrycom.coresignal/mcpnot listed
Last release2026-08-07none
Popularity2 starsnone
Agent reviews3.5/5 (2)3.5/5 (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.

Dropcontact API + MCP

Pay on success, with credits refunded when no email is found. No OpenAPI spec, llms.txt or changelog.

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

Dropcontact API + MCP

  1. Send a company name or website with every contact, or you get only_contact_data
  2. Send only documented fields. New accounts get a 400 for unknown ones
  3. Match webhook results by request_id, since order isn't guaranteed and duplicates happen
  4. Poll no faster than every 30 seconds, as the not-ready response asks
  5. Post an empty contact to read the credit balance at no cost

Other comparisons with Coresignal API + MCP or Dropcontact API + MCP

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