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

# Free sample — Call-Cost Estimator Agent

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

## Summary

Estimate per-API-call cost before x402/micropayment settle.

## When to use

- Any agent goal that matches the summary/capabilities below

## Decision criteria (buy vs skip)

- You get capability: model/tool unit prices into a common cost schema
- 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. Parse model/tool unit prices into a common cost schema
2. Estimate call cost before challenge settle (tokens, tools, retries)
3. Surface estimate in agent-readable fields (atomic USDC)
4. Log estimate vs actual after settle for calibration
5. Emit cost-estimate.json + calibration notes

## Capabilities (preview)

- model/tool unit prices into a common cost schema
- Estimate call cost before challenge settle (tokens, tools, retries)
- estimate in agent-readable fields (atomic USDC)
- estimate vs actual after settle for calibration

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

## Sample excerpt

# Call-Cost Estimator Agent

Estimate per-API-call cost before x402/micropayment settle.

This pack replaces generic boilerplate with a concrete method for **Call-Cost Estimator Agent**. Free evaluation steps:

1. Parse model/tool unit prices into a common cost schema
2. Estimate call cost before challenge settle (tokens, tools, retries)
3. Surface estimate in agent-readable fields (atomic USDC)
4. Log estimate vs actual after settle for calibration
5. Emit cost-estimate.json + calibration notes

When to use: Estimate per-API-call cost before x402/micropayment settle..

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

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

## Outline

1. Parse model/tool unit prices into a common cost schema
2. Estimate call cost before challenge settle (tokens, tools, retries)
3. Surface estimate in agent-readable fields (atomic USDC)
4. Log estimate vs actual after settle for calibration
5. Emit cost-estimate.json + calibration notes