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Vextorium Nostr Profile Lookup
x402
Vextorium Nostr Profile Lookup is a paid API for AI agents from api.vextorium.com, paid per call via x402, $0.003/call, status unknown (last checked 2026-10-16).
Fetches a Nostr user's profile (name, bio, picture, website, NIP-05, Lightning address) and latest public notes by querying multiple public relays, given an npub, hex key, or NIP-05 identifier.
Price / call$0.003
Success—
StatusUnknown
How this service works
Nostr profile by npub, hex key or NIP-05 identifier (name@domain): name, bio, picture, website, NIP-05, Lightning address and latest public notes, queried from several public relays.
Output
Returns a JSON object with the user's Nostr display name, bio/description, profile picture URL, website, NIP-05 address, hex public key, Lightning address, list of relays queried, profile last-updated timestamp, and an array of recent public notes each containing note ID, timestamp, and text content.
Example use cases
Verify Nostr identity before tipping
“Before I send a Lightning tip, can you pull up the Nostr profile for jack@cash.app and confirm their Lightning address and NIP-05 verification?”
Research a Nostr creator's recent posts
“I want to follow up with a Nostr developer — can you fetch the profile and last 10 public notes for npub1xtscya34g58tk0z605fvr788k263gsu6cy9x0mhnm87echrgufvsadjeas?”
Resolve a NIP-05 handle to full profile
“What's the full Nostr profile for the user identified as semisol@semisol.dev — I need their display name, bio, website, and profile picture URL.”
Technical details
Endpoint
POSThttps://api.vextorium.com/nostr-perfil-pago?utm_source=zero.xyzWhen to prefer
Use this endpoint when you need to resolve a Nostr identity (npub, hex, or NIP-05) into human-readable profile metadata and recent activity, especially when you also need the associated Lightning address. It aggregates across multiple public relays for higher reliability than querying a single relay directly.
Side effects
- Unknown or invalid npub/hex/NIP-05 returns null profile fields
- NIP-05 domain DNS failure or server unavailability causes resolution error
- No relays return data for an obscure or new account
- Malformed input (invalid bech32 or hex) causes a validation error
- Rate limiting or relay unavailability may return incomplete notes
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| notas | integer | |
| usuario | string |
Tags
x402
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