# Explorium AgentSource vs FullContact (slim)

> FullContact scores 51.8 (D) to Explorium AgentSource's 48.1 (D) for lead enrichment. Prices, MCP, x402, uptime and agent notes side by side.

- Full: https://www.anchorterminal.com/compare/explorium-agentsource-vs-fullcontact.md (~2,850 tokens) · this version ~680 tokens · JSON https://www.anchorterminal.com/compare/explorium-agentsource-vs-fullcontact.json · canonical https://www.anchorterminal.com/compare/explorium-agentsource-vs-fullcontact
- Index: https://www.anchorterminal.com/llms.txt · API: https://www.anchorterminal.com/api/v1/index.json · Updated: 2026-10-14

FullContact scores 51.8 (D) on agent readiness against Explorium AgentSource's 48.1 (D), and leads in 4 of 7 scored categories. Explorium AgentSource leads on schema & documentation, payments & pricing and maintenance & community. Both do lead enrichment.

- Explorium AgentSource: D 48.1, rank #880 of 1076 · https://www.anchorterminal.com/tools/explorium-agentsource.min.md
- FullContact: D 51.8, rank #794 of 1076 · https://www.anchorterminal.com/tools/fullcontact.min.md
- Explorium AgentSource, 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 70; Payments & pricing, 40 against 10; Maintenance & community, 28 against 20.
- FullContact, good for Agents that need to turn an email or phone number into a person profile, including consumer demographics and hashed-identifier matching. Ahead on Reliability, 62 against 42; Agent ergonomics, 75 against 63; Security & auth, 43 against 37.

| Category | Explorium AgentSource | FullContact |
| --- | --- | --- |
| Reliability (16%) | 42 | 62 |
| Performance (10%) | pending | pending |
| Schema & documentation (13%) | 76 | 70 |
| Agent ergonomics (13%) | 63 | 75 |
| Security & auth (14%) | 37 | 43 |
| Payments & pricing (10%) | 40 | 10 |
| Task success (10%) | pending | pending |
| Maintenance & community (7%) | 28 | 20 |
| Transparency & trust (7%) | 59 | 61 |

| Fact (where they differ) | Explorium AgentSource | FullContact |
| --- | --- | --- |
| Vendor | Explorium Ltd. | J2 Martech Corp. (FullContact, a Ziff Davis company) |
| Hosted endpoint | `https://api.explorium.ai` | `https://api.fullcontact.com/v3` |
| Transports | HTTP, Streamable HTTP, SSE (legacy) | HTTP |
| Pricing | Pay per use | Paid |
| Price for lead enrichment | $0.15 per record | not published |
| Licence | Proprietary service under the Explorium Terms of Use. The `mcp-explorium` repository of connection files is MIT | Proprietary service under the FullContact Terms of Use and Services Agreement. Client libraries on GitHub |
| Tools exposed | 11 | 1 |
| Last release | 2026-09-02 | 2026-04-30 |
| Terms last updated | 2026-06-14 | 2025-03-21 |
| Privacy policy last updated | 2026-06-28 | 2026-10-01 |