Head to head
Explorium vs Seamless.AI
As a data enrichment API, Explorium rates higher on the APIbenchmarks Index, 77.4 to 68.3, a 9.1-point gap. Here is how they compare on each criterion.
Criterion by criterion
| Criterion | Explorium | Seamless.AI |
|---|---|---|
| Documentation & DX | ||
| Reliability | ||
| Ecosystem & SDKs | ||
| Accessibility | ||
| APIbenchmarks Index | 77.4 | 68.3 |
Specifications
| Explorium | Seamless.AI | |
|---|---|---|
| Best for | Agent-driven company and prospect enrichment | Prospecting teams wanting UI plus API and MCP |
| Free tier | 100 free credits, valid 90 days (not recurring) | Free plan (50 lifetime credits per third party; API eligibility unconfirmed) |
| Pricing | Prepaid credit packages | Per credit; sales-led Pro/Enterprise |
| Official SDKs | 7 languages | 6 languages |
Is Explorium better than Seamless.AI?
On the APIbenchmarks Index, Explorium rates higher (77.4 vs 68.3). It leads on the four weighted criteria, but price is reported separately, so the best choice still depends on your budget.
Verdict in one line
Explorium leads by 9.1 points (77.4 vs 68.3) and wins 3 of 4 criteria; Seamless.AI wins 1.
Winner by criterion
| Criterion | Winner | ||
|---|---|---|---|
| Documentation & DX | 82 | 76 | |
| Reliability | 70 | 74 | |
| Ecosystem & SDKs | 74 | 68 | |
| Accessibility | 84 | 50 |
Choose Explorium if… / choose Seamless.AI if…
- →documentation & dx matters most to you (82 vs 76)
- →ecosystem & sdks matters most to you (74 vs 68)
- →accessibility matters most to you (84 vs 50)
- →you need broad SDK coverage (7 official SDKs vs 6)
- →your use case matches its focus: agent-driven company and prospect enrichment
- →reliability matters most to you (74 vs 70)
- →your use case matches its focus: prospecting teams wanting ui plus api and mcp
Pricing side by side
- Model
- Prepaid credit packages
- Free tier
- 100 free credits, valid 90 days (not recurring)
- Free trial$0
- Lite$29.99
- Starter$149.99
- Growth$749.99
- Scale$7,499.99
- EnterpriseCustom
- Model
- Per credit; sales-led Pro/Enterprise
- Free tier
- Free plan (50 lifetime credits per third party; API eligibility unconfirmed)
- Free$0
- ProContact sales (third-party: about $4,740-$9,000/yr for 5 users)
- EnterpriseCustom
Vendor-published pricing, verified 2026-10-07 (Explorium) and 2026-10-07 (Seamless.AI).
SDK and language coverage
Both · 1
REST API (HTTPS / JSON)
Only Explorium · 6
OpenAPI specification (/openapi.json)AgentSource MCP server (remote, Bearer auth)explorium-mcp-server (Python, pip)Python MCP SDK, LangGraph and OpenAI implementation guidesllms.txt documentation indexNo first-party REST language SDKs
Only Seamless.AI · 5
OpenAPI YAML/JSONPostman collectionMCP servercurl, Python and Node examplesNo official language SDKs found
Strengths and weaknesses
- +Self-serve free account and public prepaid packages from $29.99, no sales call needed
- +OpenAPI spec and llms.txt published alongside the API reference
- +Documented rate limit (200 queries/min) with X-RateLimit-* headers and Retry-After
- –No public status page or independent uptime history found; 99.999% uptime is a vendor claim
- –No first-party REST language SDKs; Python path uses the generic MCP SDK
- –Free credits are a one-time 100-credit, 90-day grant
- +Modern async API with webhooks or polling plus OpenAPI YAML/JSON specs
- +MCP server with 57 tools documented for Claude, Cursor, VS Code and ChatGPT
- +Published rate limits and simple credit rules (search 1 credit per 10 results; polling free)
- –Plan eligibility for the API is unclear and sources conflict
- –60 requests/min per endpoint, restrictive for bulk jobs
- –Pro and Enterprise pricing is sales-led
Explorium vs Seamless.AI: questions
- Which has better documentation, Explorium or Seamless.AI?
- Explorium scores higher on documentation and developer experience: 82 vs 76 out of 100.
- Which is more reliable, Explorium or Seamless.AI?
- Seamless.AI scores higher on reliability: 74 vs 70 out of 100.
- Do Explorium and Seamless.AI have a free tier?
- Explorium: yes (100 free credits, valid 90 days (not recurring)). Seamless.AI: yes (Free plan (50 lifetime credits per third party; API eligibility unconfirmed)).
- How are Explorium and Seamless.AI priced?
- Explorium: Prepaid credit packages. Seamless.AI: Per credit; sales-led Pro/Enterprise.
- Which has more official SDKs?
- Explorium lists 7 official SDKs, Seamless.AI lists 6.