# UpLead vs Seamless.AI API Testing Report

**Date:** February 7, 2026  
**Purpose:** Testing both platforms for finding cold storage and produce companies via API access  
**Target:** NAICS 493120 (Refrigerated Warehousing), cold storage, fruit packing companies  

## Executive Summary

Both UpLead and Seamless.AI offer powerful B2B data APIs with different strengths. UpLead provides more comprehensive API documentation and explicit NAICS/SIC code search capabilities, while Seamless.AI emphasizes real-time data accuracy but has less transparent API documentation.

---

## UpLead Analysis

### API Documentation Quality: ⭐⭐⭐⭐⭐
**Excellent** - Comprehensive, well-structured documentation available at https://docs.uplead.com

### Key API Endpoints:
- **Company API** - Lookup by domain or company name
- **Person API** - Contact search by email or name+domain
- **Prospector API** - Advanced company/contact search with filters
- **Prospector Pro API** - Enhanced search (Professional+ plans only)
- **Quick Search API** - Universal search (Professional+ plans)

### NAICS/SIC Code Support: ✅ EXCELLENT
- **Explicit NAICS code search** - supports `naics_codes` parameter (array)
- **SIC code search** - supports `sic_codes` parameter (array)
- **Perfect for target:** Can search NAICS 493120 (Refrigerated Warehousing)
- Returns both codes and descriptions in results

### Search Capabilities for Target Market:
```json
{
  "naics_codes": ["493120"],
  "industries": ["Food Processing", "Agriculture"], 
  "employees": ["51-200", "201-500"],
  "location": "United States"
}
```

### Data Quality & Verification:
- **95% email accuracy guarantee**
- Real-time email verification during export
- Mobile direct dial numbers included
- Company logos, social profiles, firmographics
- Credits only charged for verified valid/accept_all emails

### Free Trial:
- **5 credits for 7 days** (very limited)
- No credit card required
- Access to basic search and company lookup

### Pricing Structure:
- **Essentials:** $99/month (170 credits) or $74/month annual
- **Plus:** $199/month (400 credits) or $149/month annual  
- **Professional:** Custom pricing (annual only)
- **API Access:** Full API only on Professional tier
- **Additional credits:** $0.50-$0.60 per credit

### Rate Limits:
- **500 requests per minute**
- Well-documented rate limit headers

### Contact Information Quality:
- Email addresses with verification status
- Mobile direct dial phone numbers
- Company phone/fax numbers
- LinkedIn profiles, social media URLs
- Full company profiles with revenue, employee count

---

## Seamless.AI Analysis

### API Documentation Quality: ⭐⭐⭐
**Good but Limited** - API documentation exists but requires signup to access detailed docs

### API Features Available:
- Real-time contact enrichment
- Company + contact data lookup
- Job change tracking
- CRM integration capabilities
- Bulk data operations

### NAICS/SIC Code Support: ❓ UNCLEAR
- Documentation doesn't explicitly mention NAICS/SIC search
- Focuses on industry filters and company size
- May require custom parameters or text-based industry search
- Would need account access to test thoroughly

### Data Quality & Verification:
- **Real-time AI-powered verification**
- Claims to be "first real-time search engine for B2B"
- Emphasizes freshness over database storage
- No specific accuracy percentage published

### Free Trial:
- **50-250 credits** (conflicting sources)
- **FREE plan available** - most generous free tier
- Each contact lookup costs 1 credit
- Can search and test functionality

### Pricing Structure:
- **Free Plan:** 50-250 credits (sources vary)
- **Paid plans:** Pricing not publicly available
- Must contact sales for pricing details
- Credit-based system (1 credit = 1 contact reveal)

### API Access:
- Available but requires developer implementation
- Technical integration support provided
- Built for CRM enrichment and real-time data
- SOC2 Type II compliant

---

## Testing Results

### UpLead Testing Attempts:
❌ **Unable to complete signup** - Browser integration issues prevented full testing  
✅ **API Documentation Review** - Comprehensive analysis completed  
✅ **NAICS Code Confirmation** - Explicitly supported in API  

### Seamless.AI Testing Attempts:
❌ **API Documentation Limited** - Requires account for detailed docs  
❌ **NAICS Code Support Unclear** - No explicit mention in public docs  
✅ **Free Tier Confirmed** - More generous free offering than UpLead  

---

## Recommendations for Cold Storage & Produce Companies

### For NAICS 493120 (Refrigerated Warehousing):

**🏆 Winner: UpLead**
- Explicit NAICS code search capability
- Can target exactly what you need: `naics_codes: ["493120"]`
- Detailed company firmographics (revenue, employees)
- High email verification accuracy (95%)

### For General Produce/Food Processing Companies:

**🥈 Option: Seamless.AI**
- Real-time data freshness
- More generous free trial for testing
- Good for broader industry searches
- May require creative search strategies for specific industries

---

## Search Strategy Recommendations

### UpLead Approach:
```json
{
  "naics_codes": ["493120"],
  "industries": ["Food Processing", "Agriculture", "Transportation"],
  "text": "cold storage",
  "employees": ["51-200", "201-500", "501-1000"],
  "countries": ["United States"],
  "per_page": 100
}
```

### Alternative UpLead Search:
```json
{
  "text": "fruit packing",
  "job_functions": ["operations", "fulfillment"],
  "industries": ["Agriculture", "Food Processing"],
  "sic_codes": ["2033", "2034", "2037"]
}
```

### Seamless.AI Approach:
- Industry keyword searches: "cold storage", "refrigerated warehouse"
- Job title targeting: "Operations Manager", "Warehouse Manager" 
- Company size filtering
- Geographic targeting

---

## API Integration Complexity

### UpLead: ⭐⭐⭐⭐
- **Easy integration** - RESTful API with clear parameters
- Well-documented request/response formats
- Standard HTTP authentication with API key
- Comprehensive error handling documentation

### Seamless.AI: ⭐⭐⭐
- **Moderate complexity** - Requires technical team
- Authentication setup needed
- Less detailed public documentation
- Good integration support provided

---

## Cost Analysis (Estimates)

### UpLead Costs:
- **Testing:** $0 (5 credits free)
- **Small volume:** $99/month (170 contacts)
- **Medium volume:** $199/month (400 contacts) 
- **Enterprise:** Custom pricing for API access

### Seamless.AI Costs:
- **Testing:** $0 (50-250 credits free)
- **Paid plans:** Unknown - must contact sales
- Industry reports suggest competitive pricing
- Credit model similar to UpLead

---

## Final Verdict

### Choose UpLead if:
- ✅ Need explicit NAICS code targeting (493120)
- ✅ Want guaranteed 95% email accuracy  
- ✅ Prefer clear, predictable pricing
- ✅ Need comprehensive API documentation
- ✅ Target specific cold storage/refrigerated warehousing

### Choose Seamless.AI if:
- ✅ Want more generous free testing (50-250 credits)
- ✅ Prioritize real-time data freshness
- ✅ Need broader produce industry targeting
- ✅ Prefer negotiated enterprise pricing

---

## Next Steps

1. **UpLead:** Sign up for free trial and test NAICS 493120 search
2. **Seamless.AI:** Use free tier to test search capabilities  
3. **Compare results:** Data quality, coverage, contact accuracy
4. **API testing:** Test actual API integration with both platforms
5. **Cost analysis:** Get final pricing for expected volume

**Recommendation:** Start with UpLead for specific cold storage targeting due to explicit NAICS code support, then test Seamless.AI's free tier for comparison.