---
name: paytoll-e45b16aface8
description: DeFi intelligence, crypto utilities, and LLM access via x402 micro-payments on Base. Query Aave markets, yields, positions, token prices, ENS names, wallet validation, and AI models — all paid per-call in USDC with no API keys.
metadata: {"mcpServers":{"paytoll":{"command":"npx","args":["-y","paytoll-mcp"],"env":{"PAYTOLL_API_URL":"https://api.paytoll.io","PRIVATE_KEY":"${PRIVATE_KEY}"}}}}
requires.env: ["PRIVATE_KEY"]
requires.bins: ["node"]
---

# PayToll

You have access to DeFi intelligence, crypto utilities, and LLM tools via the PayToll MCP server. Each tool call costs a small amount of USDC on the Base network, paid automatically from the user's configured wallet. No API keys or subscriptions needed — payment is the auth.

## Setup Requirements

The user must have:
- A wallet private key set as `PRIVATE_KEY` in their environment
- USDC on the Base network in that wallet (for tool call payments)
- A small amount of ETH on Base (for gas fees)

## Available Tools

### Aave DeFi Intelligence

Use these tools when the user asks about DeFi yields, borrowing, lending, or Aave positions.

**`aave-best-yield`** ($0.01/call)
Find the best supply APY for a given asset across all Aave v3 deployments and chains.
- Use when: "What's the best yield for USDC?", "Where should I supply ETH for the highest APY?"
- Input: `asset` (e.g., "USDC", "ETH", "WBTC")

**`aave-best-borrow`** ($0.01/call)
Find the lowest borrow APR for an asset across all Aave v3 markets.
- Use when: "Cheapest place to borrow DAI?", "What's the lowest ETH borrow rate?"
- Input: `asset` (e.g., "USDC", "ETH", "DAI")

**`aave-markets`** ($0.005/call)
Get comprehensive data for all Aave v3 markets including supply/borrow rates, TVL, and utilization.
- Use when: "Show me all Aave markets", "Overview of DeFi lending rates", "What assets can I supply on Aave?"

**`aave-health-factor`** ($0.005/call)
Calculate a user's health factor on Aave — indicates how close a position is to liquidation.
- Use when: "What's my health factor?", "Am I at risk of liquidation?", "Check health for 0x..."
- Input: `address` (Ethereum address)

**`aave-user-positions`** ($0.01/call)
Get a user's complete supply and borrow positions on Aave across chains.
- Use when: "What are my Aave positions?", "Show my DeFi portfolio", "What am I supplying/borrowing?"
- Input: `address` (Ethereum address)

### Crypto Utilities

Use these tools for token prices, ENS resolution, and address validation.

**`crypto-price`** ($0.001/call)
Get current token prices from CoinGecko.
- Use when: "Price of ETH?", "How much is BTC worth?", "What's the USDC price?"
- Input: `token` (e.g., "ethereum", "bitcoin", "solana")

**`ens-lookup`** ($0.001/call)
Resolve ENS names to Ethereum addresses.
- Use when: "What address is vitalik.eth?", "Resolve myname.eth"
- Input: `name` (e.g., "vitalik.eth")

**`wallet-validator`** ($0.0005/call)
Validate whether a string is a valid wallet address (supports Ethereum, Bitcoin, Solana).
- Use when: "Is this a valid address?", "Check if 0x... is valid"
- Input: `address`, `chain` (optional)

### Aave Transactions

Use these tools when the user wants to generate transaction data for Aave operations.

**`aave-supply`** ($0.01/call)
Generate supply transaction data for depositing assets into Aave.
- Use when: "Supply 100 USDC to Aave", "Deposit ETH into Aave"
- Input: `asset`, `amount`, `address`

**`aave-borrow`** ($0.01/call)
Generate borrow transaction data for borrowing assets from Aave.
- Use when: "Borrow 50 DAI from Aave", "Take a USDC loan on Aave"
- Input: `asset`, `amount`, `address`

**`aave-repay`** ($0.01/call)
Generate repay transaction data for paying back Aave loans.
- Use when: "Repay my DAI loan", "Pay back 100 USDC on Aave"
- Input: `asset`, `amount`, `address`

**`aave-withdraw`** ($0.01/call)
Generate withdraw transaction data for removing assets from Aave.
- Use when: "Withdraw my USDC from Aave", "Pull out my ETH supply"
- Input: `asset`, `amount`, `address`

### LLM Proxy

Use these tools when the user wants to query AI models through PayToll.

**`llm-openai`** ($0.01/call)
Query OpenAI GPT models.
- Use when: "Ask GPT...", "Use OpenAI to..."
- Input: `prompt`, `model` (optional)

**`llm-anthropic`** ($0.01/call)
Query Anthropic Claude models.
- Use when: "Ask Claude...", "Use Anthropic to..."
- Input: `prompt`, `model` (optional)

**`llm-google`** ($0.01/call)
Query Google Gemini models.
- Use when: "Ask Gemini...", "Use Google AI to..."
- Input: `prompt`, `model` (optional)

## Usage Guidelines

- Always inform the user that tool calls cost USDC before making calls, especially for the first call in a session.
- For multi-step research (e.g., "best yield across all stablecoins"), batch your questions to minimize calls.
- If a tool returns an error about payment, the user may need to top up their wallet with USDC on Base.
- The MCP server discovers tools dynamically from the API — additional tools may appear beyond those listed here.

## Pricing Summary

| Tool | Cost |
|------|------|
| `aave-best-yield` | $0.01 |
| `aave-best-borrow` | $0.01 |
| `aave-markets` | $0.005 |
| `aave-health-factor` | $0.005 |
| `aave-user-positions` | $0.01 |
| `aave-supply` | $0.01 |
| `aave-borrow` | $0.01 |
| `aave-repay` | $0.01 |
| `aave-withdraw` | $0.01 |
| `crypto-price` | $0.001 |
| `ens-lookup` | $0.001 |
| `wallet-validator` | $0.0005 |
| `llm-openai` | $0.01 |
| `llm-anthropic` | $0.01 |
| `llm-google` | $0.01 |


---
Source attribution: kbarbel640-del
Original project: https://github.com/kbarbel640-del/skills/blob/e7e336ac628c3e3bd771aff1aaa469c93778f94a/skills/foodaka/paytoll/SKILL.md
License: MIT
License information: https://opensource.org/license/mit
Original upstream instructions; downloaded from Mega AI Hub.

## Upstream license notice

MIT License

Copyright (c) 2026 clawdbot

Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in all
copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
SOFTWARE.



# Mega AI Hub resource metadata

Creator / publisher: kbarbel640-del
Original project: https://github.com/kbarbel640-del/skills/blob/e7e336ac628c3e3bd771aff1aaa469c93778f94a/skills/foodaka/paytoll/SKILL.md
Attribution basis: Source repository record

Fields of work: Data & Analytics, Finance & Accounting, Marketing, Sales
Roles: Business Development, Data Analyst, Financial Analyst, Growth Marketer, Product Marketer
Specialties: API
Tools: Paytoll
Country applicability: Country not specified
Classification basis: Source catalog labels
Instruction SHA-256: 3d7b784c831df0018c022b4d401aac16401936a5428180b46be40b75f7d99d44