Head to head
Fiber vs Seamless.AI
As a data enrichment API, Fiber rates higher on the APIbenchmarks Index, 69.9 to 68.3, a 1.6-point gap. Here is how they compare on each criterion.
Criterion by criterion
| Criterion | Fiber | Seamless.AI |
|---|---|---|
| Documentation & DX | ||
| Reliability | ||
| Ecosystem & SDKs | ||
| Accessibility | ||
| APIbenchmarks Index | 69.9 | 68.3 |
Specifications
| Fiber | Seamless.AI | |
|---|---|---|
| Best for | Agent-native sales and recruiting data pipelines | Prospecting teams wanting UI plus API and MCP |
| Free tier | No | Free plan (50 lifetime credits per third party; API eligibility unconfirmed) |
| Pricing | Credit-based ($0.02/credit) on monthly plans | Per credit; sales-led Pro/Enterprise |
| Official SDKs | 5 languages | 6 languages |
Is Fiber better than Seamless.AI?
On the APIbenchmarks Index, Fiber rates higher (69.9 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
Fiber leads by 1.6 points (69.9 vs 68.3) and wins 3 of 4 criteria; Seamless.AI wins 1.
Winner by criterion
| Criterion | Winner | ||
|---|---|---|---|
| Documentation & DX | 80 | 76 | |
| Reliability | 60 | 74 | |
| Ecosystem & SDKs | 74 | 68 | |
| Accessibility | 62 | 50 |
Choose Fiber if… / choose Seamless.AI if…
- →documentation & dx matters most to you (80 vs 76)
- →ecosystem & sdks matters most to you (74 vs 68)
- →accessibility matters most to you (62 vs 50)
- →your use case matches its focus: agent-native sales and recruiting data pipelines
- →reliability matters most to you (74 vs 60)
- →you want a free tier to start (Free plan (50 lifetime credits per third party; API eligibility unconfirmed))
- →you need broad SDK coverage (6 official SDKs vs 5)
- →your use case matches its focus: prospecting teams wanting ui plus api and mcp
Pricing side by side
- Model
- Credit-based ($0.02/credit) on monthly plans
- Free tier
- No
- Prospector$300/mo
- Growth$900/mo
- Enterprise$2,400/mo
- Bulk / datasetsFrom $1,000/mo (datasets)
- Trial$0 for 7 days
- 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 (Fiber) and 2026-10-07 (Seamless.AI).
SDK and language coverage
Both · 0
None
Only Fiber · 5
Node.js / TypeScript (@fiberai/sdk)Python (fiberai)REST API and OpenAPIMCP servers (v3 OAuth, v2, lite)First-party coding-agent plugin
Only Seamless.AI · 6
REST API (v1/v2)OpenAPI YAML/JSONPostman collectionMCP servercurl, Python and Node examplesNo official language SDKs found
Strengths and weaknesses
- +Official Node (@fiberai/sdk) and Python (fiberai) SDKs
- +Three MCP servers (v3 OAuth, v2 API key, lite) and a first-party plugin
- +Agent-native docs: per-operation markdown, llms.txt and openapi.json
- –No free tier; entry plan $300/month
- –Trial requirements conflict between homepage and pricing page
- –No confirmed official status page or SLA
- +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
Fiber vs Seamless.AI: questions
- Which has better documentation, Fiber or Seamless.AI?
- Fiber scores higher on documentation and developer experience: 80 vs 76 out of 100.
- Which is more reliable, Fiber or Seamless.AI?
- Seamless.AI scores higher on reliability: 74 vs 60 out of 100.
- Do Fiber and Seamless.AI have a free tier?
- Fiber: no free tier. Seamless.AI: yes (Free plan (50 lifetime credits per third party; API eligibility unconfirmed)).
- How are Fiber and Seamless.AI priced?
- Fiber: Credit-based ($0.02/credit) on monthly plans. Seamless.AI: Per credit; sales-led Pro/Enterprise.
- Which has more official SDKs?
- Seamless.AI lists 6 official SDKs, Fiber lists 5.