Use Smart Diff for structured document changes and rule-based significance evide...
https://api.fresh402.com/v2/smart-diffOverview
Use Smart Diff for structured document changes and rule-based significance evidence after free registration. Compare against the previous snapshot, fixed baseline or an available same-watch hash. Saved scope is reused; legacy HTML can lack structure. Not an API compatibility proof. x402 $0.015 USDC on Base.
Protocol
x402 (POST)
Price
$0.01
Payment Asset
USD Coin
Payment Network
eip155:8453
Category
uncategorized
Provider
Fresh402 Web Intelligence
Source
bazaar
Indexed
2026-11-03 04:14:01
Health
Status
unknown
Latency (p50)
—
Uptime (30d)
—
Reliability Score
—
Last Checked
Never
Last Healthy
Never
Consecutive Failures
0
x402 Payment Validation
Payment Requirements
—
Asset Verified
—
Facilitator
—
Input Schema
{
"body": {
"compare_to": "previous",
"watch_id": "w_0123456789abcdef0123456789abcdef"
},
"bodyType": "json",
"method": "POST",
"type": "http"
}
Output Schema
{
"example": {
"algorithm": "deterministic-v1",
"changed": true,
"changes": {
"added": [],
"modified": [
{
"after": 20,
"before": 10,
"path": "/price"
}
],
"removed": []
},
"changes_truncated": false,
"compare_to": "previous",
"comparison_quality": "structural",
"comparison_source": "smart_snapshot",
"content_kind": "json",
"counts": {
"added": 0,
"modified": 1,
"removed": 0
},
"final_url": "https://example.com/",
"hash": "1111111111111111111111111111111111111111111111111111111111111111",
"previous_hash": "0000000000000000000000000000000000000000000000000000000000000000",
"semantic_model_used": false,
"significance": {
"level": "medium",
"reasons": [
"content_changed",
"numeric_or_price_change"
],
"rules_version": 2,
"score": 45
},
"url": "https://example.com/",
"watch_id": "w_0123456789abcdef0123456789abcdef"
},
"type": "json"
}