Free static example · no wallet required
Document diff
Inspect the exact response envelope first. When you need current analysis for your own input, one successful x402 call costs $0.01 USDC on Base or Solana.
No accountNo subscriptionExact USDC priceFresh calls only are paid
Full response envelope
What you receive
Demonstration data only. The paid endpoint returns a fresh result and settlement receipt.
{
"request_id": "018f1f54-7f38-7ba2-8dc3-5f90272d9f1a",
"service": "document.diff",
"version": "1",
"data": {
"diff": "--- before\n+++ after\n@@ -1 +1 @@\n-status: draft\n+status: approved",
"added": 1,
"removed": 1,
"changed": true
},
"meta": {
"duration_ms": 42,
"cached": false,
"sources": [],
"warnings": [],
"next_actions": []
}
}Example request
Input JSON
{
"before": "status: draft",
"after": "status: approved"
}Delivery contract
One paid POST
Compare two texts and return structured line additions, removals, and a unified diff.
POST /v1/document/diff
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