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NPC Voice Direction Generator
x402
NPC Voice Direction Generator is a paid API for AI agents from market.datapackvibe.com, paid per call via x402, $0.02/call, status unknown (last checked 2026-09-30).
Generates voice-performance notes and sample spoken lines for non-player character (NPC) roles in games or interactive media.
Price / call$0.02
Success—
StatusUnknown
How this service works
NPC voice direction: Create voice-performance notes and sample lines for an NPC role.
Output
Returns voice-performance direction including character tone, accent notes, emotional delivery guidance, and sample spoken lines tailored to the NPC role, world theme, and any lore constraints provided. Multiple NPC voice packs can be returned in a single call (up to 5).
Example use cases
RPG merchant voice characterization
“Create voice performance notes and 2 sample spoken lines for a nervous elven potion merchant NPC in a high-fantasy world — the lore says magic is outlawed, so he should sound paranoid and secretive.”
Sci-fi guard NPC voice notes
“I need voice direction and 3 sample lines for a robotic security guard NPC in my cyberpunk game — the theme is corporate dystopia and guards are programmed to be coldly polite but threatening.”
Villain NPC batch voice direction
“Generate voice acting notes and sample lines for 4 different villain NPCs in my gothic horror game — the established lore is that they're all cultists worshipping an ancient sea god, so their speech should feel ritualistic and unsettling.”
Technical details
Endpoint
POSThttps://market.datapackvibe.com/x402/npc-voices?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need structured voice-acting guidance — not just dialogue lines — for NPCs in a game or interactive story. It is particularly useful when directing voice actors, setting audio production guidelines, or ensuring consistent character voice across a project. Prefer this over general text-generation tools when you need specifically formatted performance notes alongside sample lines, and over the sibling 'Dialogue opener generator' when you need deeper character voice definition rather than just opening lines.
Side effects
- Invalid count value outside 1–5 range returns a validation error
- Overly vague or empty context may produce generic, low-specificity voice notes
- Conflicting theme and context inputs may produce inconsistent character voice
- Seed value that doesn't match prior inputs will produce different output despite being the same seed string
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| seed | string | Optional repeatable seed. |
| count | integer | |
| theme | string | Optional world or project theme. |
| context | string | Optional constraints or established lore. |
Tags
x402
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