10 Services from nostr.halowerk.com

Collects kind 9735 zap receipts for a given Nostr public key across up to 12 relays, deduplicates by event ID, decodes BOLT-11 invoices to extract actual amounts, and reports who zapped how much within a requested time window.

Generates the NIP-01 serialisation, SHA-256 event ID, and 32-byte signing payload for a Nostr event so the caller can sign locally without exposing their private key.

Fetches and deduplicates kind 3 contact lists for a Nostr public key across up to 12 relays, returning the authoritative follow list based on the highest created_at timestamp.

Resolves a recipient (bech32 LNURL, Lightning address, or Nostr public key) to a Lightning invoice by fetching the appropriate LNURL callback and returning a payable invoice.

Verifies a NIP-05 identifier by fetching the domain's nostr.json and comparing the resolved public key, with explicit match/mismatch reporting and redirect detection

Measures Nostr relay health by sending a genuine WebSocket REQ query and recording connection time, time-to-end-of-stored-events, and event count returned.

Converts any NIP-19 bech32 identifier or 64-character hex value into all of its equivalent representations, including TLV-decoded relay hints, author, and kind fields.

Analyzes a Nostr public key's posting behavior across multiple relays and computes six bot-detection signals to produce a bot likelihood score.

Fetches an RSS/Atom/RDF feed from a URL and converts each entry into a signed NIP-01 Nostr event (kind 1 short note or kind 30023 long-form article).

Validates a Nostr kind 9735 zap receipt by running eight named cryptographic and structural checks, including BIP-340 signature verification and invoice amount comparison.