Vellium & Co

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Structured Data Tools

JSON Patch diff — compare JSON documents for record updates and configuration synchronization; return a deterministic RFC 6902 patch with RFC 6901 pointers and exact decimal equality. Object removals precede changes; changed arrays are repl

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Our latest check (2026-10-11)

Answering
Yes — valid x402 payment terms
Time to answer
248 ms
Price
$0.010 per call
Paying buyers, last 30 days
2 (directory's own records)
Paid calls, last 30 days
2
Category
Developer tools and utilities
Address
https://data-tools.use.x402atlas.com/json-diff

Accuracy: paid answers checked against an independent record

Not yet in our paid checks. A seller we have not checked has neither passed nor failed.

For agents

This page as JSON: /sellers/9a72d6ea9ca5.json. Paid lookup by address: GET /api/seller?resource=… ($0.001, x402).

Sellers can see the evidence behind their checks and ask for a re-check at [email protected].