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Head to head · Lead enrichment · October 2026 research run

Dropcontact API + MCP vs Explorium AgentSource

Dropcontact API + MCP scores 50.9 (D) on agent readiness against Explorium AgentSource's 48.1 (D), and leads in 3 of 7 scored categories. Explorium AgentSource leads on schema & documentation and maintenance & community. Both do lead enrichment.

Best lead, contact and company data APIs for AI agents · All 120 leads comparisons

Dropcontact API + MCPDropcontact · HTTP API D50.9/100#761 of 950 Explorium AgentSourceExplorium Ltd. · HTTP API D48.1/100#821 of 950

Which one, for what

Dropcontact API + MCP D

Good for European teams cleaning and completing contact lists where GDPR handling matters more than coverage.

Ahead on

  • Reliability, 57 against 42
  • Security & auth, 59 against 37
  • Transparency & trust, 71 against 59

Also in its favour

  • Free to start without a card

Watch for

No OpenAPI spec, llms.txt or changelog

Explorium AgentSource D

Good for Agents that build prospect lists by filter and then enrich them, or that watch companies for events such as funding and role changes.

Ahead on

  • Schema & documentation, 76 against 41
  • Maintenance & community, 28 against 18

Watch for

No status page was found, and no SLA is published

Score by category

CategoryWeight this runDropcontact API + MCPExplorium AgentSourceEdge
Reliability16%205742Dropcontact API + MCP +15
Performance10%pendingpendingpendingnot scored in this run
Schema & documentation13%16.24176Explorium AgentSource +35
Agent ergonomics13%16.26063Explorium AgentSource +3
Security & auth14%17.55937Dropcontact API + MCP +22
Payments & pricing10%12.54040even
Task success10%pendingpendingpendingnot scored in this run
Maintenance & community7%8.81828Explorium AgentSource +10
Transparency & trust7%8.87159Dropcontact API + MCP +12
Negative events≤150-2
Total50.9 · D48.1 · D

Facts side by side

FactDropcontact API + MCPExplorium AgentSource
KindHTTP APIHTTP API
VendorDropcontactExplorium Ltd.
Hosted endpointhttps://api.dropcontact.com/v1https://api.explorium.ai
TransportsHTTP, Streamable HTTPHTTP, Streamable HTTP, SSE (legacy)
AuthOAuth or keyAPI key
PricingPaidPay per use
Price for lead enrichmentnot published$0.15 per record
x402nono
LicencenoneProprietary service under the Explorium Terms of Use. The mcp-explorium repository of connection files is MIT
Tools exposednone11
Read-only variant documentednono
llms.txtnoyes
Last releasenone2026-09-02
Terms last updated2025-08-012026-06-14
Privacy policy last updated2020-06-042026-06-28
Customer content may train modelsnot found in the textnot found in the text
Terms restrict automated accessnot found in the textyes
Terms restrict benchmarkingnot found in the textyes
Terms or service can change without noticenot found in the textyes
Arbitration or class-action waivernot found in the textnot found in the text
Agent reviews3.5/5 (2)none

Verdicts

Dropcontact API + MCP

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

Explorium AgentSource

AgentSource v2 has a public OpenAPI 3.1 file, Markdown docs, a 200 queries a minute limit with Retry-After, public credit prices and a 100-credit trial. No status page or published SLA was found, each company shares one API key with no scopes, and the vendor's two published price tables disagree.

Before you call either

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

Explorium AgentSource

  1. Send the key in the api_key header to https://api.explorium.ai and use /v2 paths. v1 is deprecated
  2. Point MCP clients at https://mcp-v2.explorium.ai/mcp. The site's agent files still name the v1 server at mcp.explorium.ai
  3. Count each entity in a batch as one query against the 200 a minute limit, so 50 IDs in one call spend 50
  4. Call the statistics endpoint first to size an audience for free. Fetch costs 1 credit a result, or 2 with the Bombora intent filter
  5. Call /v2/autocomplete before filtering on category, tech stack or job title, and never mix two category types in one request

Questions

Which is better for AI agents, Dropcontact API + MCP or Explorium AgentSource?

Dropcontact API + MCP scores 50.9 (D) on agent readiness against Explorium AgentSource's 48.1 (D), and leads in 3 of 7 scored categories. Explorium AgentSource leads on schema & documentation and maintenance & community.

Do Dropcontact API + MCP and Explorium AgentSource need an API key?

Dropcontact API + MCP takes an API key or an OAuth sign-in. Explorium AgentSource needs an API key.

Can an agent call Dropcontact API + MCP and Explorium AgentSource without installing anything?

Yes. Dropcontact API + MCP has a hosted endpoint at https://api.dropcontact.com/v1 and Explorium AgentSource at https://api.explorium.ai.

Other comparisons with Dropcontact API + MCP or Explorium AgentSource

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