ESP·01
Image Similarity & Duplicate Detection API
Give it two public HTTPS image URLs; it tells you whether they're byte-identical and how visually similar they are. No file storage — images are fetched, hashed, and discarded.
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View request example
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How it works
1
Send two image URLs
Point us at any two public HTTPS image links you want compared.
2
We check for an exact match
Byte-for-byte identical images are flagged instantly, no further work needed.
3
If not, we compare how they look
A perceptual hash captures visual structure, even after resizing or re-compression.
4
You get a similarity score
A single JSON response: match or not, and how similar, from 0 to 1.
Example request
# GET /v1/compare with two image URLs and your API key curl "https://api.apiespresso.com/v1/compare?url1=https://example.com/a.png&url2=https://example.com/b.png" \ -H "Authorization: Bearer idk_live_xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx"
Response is JSON: exact_match, similarity_score
(0–1), hash_type, and distance.
Pricing
| Plan | Price | Included requests |
|---|---|---|
| Free | $0/mo | 200 requests/month |
| Starter | $2.99/mo | 2,000 requests/month |
| Growth | $7.99/mo | 10,000 requests/month |
| Pro | $19.99/mo | 50,000 requests/month |
| Overage beyond your plan: $0.0005 / request. | ||
Pricing shown here is provisional pending final Paddle setup.