# Tanod chainpeek Transfer Fee Comparator

> Tanod chainpeek Transfer Fee Comparator is a paid API for AI agents from tanod.dev, paid per call via x402, $0.002/call, status unknown (last checked 2026-10-14).

Compares USDC or USDT transfer fees across Base, Polygon, Ethereum, BNB Chain, Arbitrum, and Solana, ranked cheapest first in both native units and USD.

## Facts

- Endpoint: POST https://tanod.dev/v1/chain/transfer-fees?utm_source=zero.xyz
- Price: $0.002/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-14
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/tanod-chainpeek-transfer-fee-comparator-d44e0380
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_uIQjRAX8HtuSUHBUSQu-p

Status and success rate cover calls made through Zero and Zero's own probes. Third-party monitors may report differently.

## How to call it through Zero

Zero handles the 402 payment challenge and records the run. With the Zero CLI installed (`npm i -g @zeroxyz/cli`):

```sh
zero fetch --capability tanod-chainpeek-transfer-fee-comparator-d44e0380 -d '<json body>'
```

Example prompt: I need to send 500 USDC to someone — check the transfer fees across all six chains (Base, Polygon, Ethereum, BNB, Arbitrum, Solana) and tell me which is cheapest right now.

## When to prefer this

Use this endpoint when an agent or user needs to decide which blockchain to send USDC or USDT on based purely on transfer cost, covering the six major EVM and Solana chains simultaneously. Prefer this over checking gas trackers manually or querying individual chain APIs when you need a single ranked comparison in USD-equivalent terms.

## Known failure modes

- Invalid token value (not USDC or USDT) returns a validation error
- Amount of zero or negative returns exclusiveMinimum validation error
- Providing an empty chains array returns a minItems validation error
- Chain name typo or unsupported chain returns enum validation error
- Network price feed unavailability may cause stale or partial fee data
- Service outage returns non-200 HTTP status

## How this service works

chainpeek (Tanod) USDC or USDT transfer fee compared across Base, Polygon, Ethereum, BNB Chain, Arbitrum and Solana, ranked cheapest first, in native units and USD. Use when an agent must pick the ch…

## Output

A ranked list of chains ordered cheapest-first, each entry showing the chain name, the estimated transfer fee in native token units, and the equivalent fee in USD for the specified stablecoin (USDC or USDT).

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "token": {
   "enum": [
    "USDC",
    "USDT"
   ],
   "type": "string",
   "default": "USDC",
   "description": "USDC (default) or USDT."
  },
  "amount": {
   "type": "number",
   "default": 100,
   "maximum": 1000000000000,
   "description": "Transfer size (default 100). Informational only: an ERC-20 or SPL transfer fee does not depend on the amount.",
   "exclusiveMinimum": 0
  },
  "chains": {
   "anyOf": [
    {
     "type": "array",
     "items": {
      "enum": [
       "base",
       "polygon",
       "ethereum",
       "bnb",
       "arbitrum",
       "solana"
      ],
      "type": "string"
     },
     "maxItems": 6,
     "minItems": 1
    },
    {
     "type": "null"
    }
   ],
   "default": null,
   "description": "Chains to compare: base, polygon, ethereum, bnb, arbitrum, solana. Default: all six."
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/tanod-chainpeek-transfer-fee-comparator-d44e0380/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from tanod.dev](https://www.zero.xyz/host/tanod.dev/llms.txt)