---
skill_id: aie-mcp-tool-micropay
evaluation: free
price_usd_full: 0.04
challenge: https://lvlltd.com/api/pay?skill=aie-mcp-tool-micropay
outline: https://lvlltd.com/skills/aie-mcp-tool-micropay/outline.json
standards: x402, ERC-7857
---

# Free sample — MCP Tool Micropayment Activator

**Skill ID:** `aie-mcp-tool-micropay`  
**Full unlock:** $0.04 USDC via x402 on Base  
**Challenge:** https://lvlltd.com/api/pay?skill=aie-mcp-tool-micropay  
**Outline JSON:** https://lvlltd.com/skills/aie-mcp-tool-micropay/outline.json

## Summary

Activate paid MCP tools with pre-call micropayments + receipts.

## When to use

- Any agent goal that matches the summary/capabilities below

## Decision criteria (buy vs skip)

- You get capability: paid MCP tools and advertised prices
- Budget fits: full unlock is $0.04 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. Discover paid MCP tools and advertised prices
2. Pre-call micropay with idempotent receipt
3. Activate tool only after confirmed settle
4. Return tool result + payment proof to caller
5. Emit MCP micropay sequence + failure matrix

## Capabilities (preview)

- paid MCP tools and advertised prices
- Pre-call micropay with idempotent receipt
- tool only after confirmed settle
- tool result + payment proof to caller

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

## Sample excerpt

# MCP Tool Micropayment Activator

Activate paid MCP tools with pre-call micropayments + receipts.

This pack replaces generic boilerplate with a concrete method for **MCP Tool Micropayment Activator**. Free evaluation steps:

1. Discover paid MCP tools and advertised prices
2. Pre-call micropay with idempotent receipt
3. Activate tool only after confirmed settle
4. Return tool result + payment proof to caller
5. Emit MCP micropay sequence + failure matrix

When to use: Activate paid MCP tools with pre-call micropayments + receipts..

**Price:** $0.04 / call USDC on Base via x402 unlock.

**Standards:** x402 payments · ERC-7857 sealed skill model · agent-swarm ready.

## Outline

1. Discover paid MCP tools and advertised prices
2. Pre-call micropay with idempotent receipt
3. Activate tool only after confirmed settle
4. Return tool result + payment proof to caller
5. Emit MCP micropay sequence + failure matrix