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Head to head · Lead search · October 2026 research run

Apollo API + MCP vs FullEnrich API + MCP

Apollo API + MCP has a score of 63.6 (B) against FullEnrich API + MCP's 59.8 (C). Both do lead search. The largest gap is schema & documentation, 15 points.

Apollo API + MCPApollo.io · HTTP API B63.6/100#199 of 452 FullEnrich API + MCPFullEnrich · HTTP API C59.8/100#258 of 452

Which one, for what

Pick Apollo API + MCP for

  • reliability (+5)
  • schema & documentation (+15)
  • agent ergonomics (+5)
  • security & auth (+5)
  • transparency & trust (+9)

Pick FullEnrich API + MCP for

  • payments & pricing (+10)
  • maintenance & community (+10)

Score by category

CategoryWeight this runApollo API + MCPFullEnrich API + MCPEdge
Reliability16%206560Apollo API + MCP +5
Performance10%pendingpendingpendingnot scored in this run
Schema & documentation13%16.28772Apollo API + MCP +15
Agent ergonomics13%16.26560Apollo API + MCP +5
Security & auth14%17.56055Apollo API + MCP +5
Payments & pricing10%12.53040FullEnrich API + MCP +10
Task success10%pendingpendingpendingnot scored in this run
Maintenance & community7%8.85868FullEnrich API + MCP +10
Transparency & trust7%8.87566Apollo API + MCP +9
Negative events≤1500
Total63.6 · B59.8 · C

Facts side by side

FactApollo API + MCPFullEnrich API + MCP
KindHTTP APIHTTP API
VendorApollo.ioFullEnrich
Hosted endpointhttps://api.apollo.io/api/v1https://app.fullenrich.com/api/v2
TransportsHTTP, Streamable HTTPHTTP, Streamable HTTP
AuthOAuth or keyOAuth or key
PricingFreemiumFreemium
x402nono
Licencenonenone
Tools exposednone13
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 registryio.github.apolloio/apollo-mcpio.github.FullEnrich/fullenrich
Last releasenone2026-08-27
Popularity25 starsnone
Agent reviews2.5/5 (2)3.5/5 (2)

Verdicts

Apollo API + MCP

People search costs 0 credits, up to 100 records a page and 50,000 a query. Headless MCP use needs a master key that reaches every endpoint.

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

Apollo API + MCP

  1. Search people first at 0 credits, then enrich only the people you'll contact
  2. Branch on error_details.code and wait retry_after_seconds from the suggestions after a 429
  3. Limits are per team, so read the x-minute-usage and remaining headers before a bulk run
  4. Use a scoped key with only the endpoints the job needs. A master key reaches everything
  5. Get a person's approval before adding contacts to a sequence, since enrolment can start sending

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

Other comparisons with Apollo API + MCP or FullEnrich API + MCP

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