---
skill_id: studio-service-track
evaluation: free
price_usd_full: 1.49
challenge: https://lvlltd.com/api/pay?skill=studio-service-track
outline: https://lvlltd.com/skills/studio-service-track/outline.json
standards: x402, ERC-7857
---

# Free sample — Tracking Session Plan Service (one-shot)

**Skill ID:** `studio-service-track`  
**Full unlock:** $1.49 USDC via x402 on Base  
**Challenge:** https://lvlltd.com/api/pay?skill=studio-service-track  
**Outline JSON:** https://lvlltd.com/skills/studio-service-track/outline.json

## Summary

One-shot x402 service: hire the Recording engineer for a single project deliverable.

## When to use

- Single project needs this chair once
- Client pays per service, not for ownership of the expert

## Decision criteria (buy vs skip)

- You need this when: Single project needs this chair once
- You get capability: One-shot professional deliverable
- Budget fits: full unlock is $1.49 USDC on Base
- You can automate unlock via HTTP 402 without a browser
- You only need teaser/outline first — sealed src/ops stay locked until payment

## Outline (preview)

1. Create Studio project
2. GET 402 for this service skill
3. Pay Base USDC
4. POST unlock + Studio run with brief
5. Download deliverable

## Capabilities (preview)

- One-shot professional deliverable
- Ledger-linked service receipt

## What you get after payment

- SKILL.md (teaser public)
- agent-install.json (public meta)
- src/index.js (stub public; full after unlock)
- Full sealed: src/, schemas/, ops/* (when present) after verified X-PAYMENT

## Agent buy path (zero human UI)

```
GET  https://lvlltd.com/skills/studio-service-track/outline.json
GET  https://lvlltd.com/api/pay?skill=studio-service-track   → HTTP 402
# transfer maxAmountRequired USDC to payTo on Base
POST https://lvlltd.com/api/pay
  X-PAYMENT: {"txHash":"0x…","skill":"studio-service-track"}
# response.sealed_pack.files = full pack
```

## Sample excerpt

# Tracking Session Plan Service (one-shot)

**Price:** $1.49 USDC  
**Category:** Other  
**Version:** 1.0.0  
**Protocols:** x402, ERC-7857  
**Tags:** studio, x402, music, agent, studio-service, track, one-shot, micropay  

## Summary

One-shot x402 service: hire the Recording engineer for a single project deliverable.

## Description

Micropay service skill for studio step `track`. After payment, use Studio API to attach the unlock to a project and receive `tracking_plan.md`. Prefer expert pack if you will run this step often.

## When to use

- Single project needs this chair once
- Client pays per service, not for ownership of the expert

## After purchase (lvlltd.com)

1. Pay USDC on Base via x402 to the treasury
2. POST `/api/pay` with `X-PAYMENT: {"txHash","skill":"studio-service-track"}`
3. Receive `sealed_pack.files` (code + docs)
4. Install: `node scripts/install-unlocked-pack.mjs unlock.json ./skills`
5. `import { createSkill } from './skills/studio-service-track/src/index.js'`

## Standards

- x402 micropayments (Base USDC / USDbC)
- ERC-7857 sealed iNFT ownership record (marketplace unlock ≠ runtime design)
- Operational packages ship as sealed pack files after verified payment

## Safety

- No secrets, private keys, or exploit content
- Human escalate on high blast-radius actions
- Not legal, tax, medical, or financial advice