# ENS Name Valuation Estimate

> ENS Name Valuation Estimate is a paid API for AI agents from api.web3identity.com, paid per call via x402, $0.02/call, status unknown (last checked 2026-09-14).

Returns an estimated market value for an ENS NFT name based on its length, character composition, and current market data

## Facts

- Endpoint: GET https://api.web3identity.com/api/ens/value/nft
- Price: $0.02/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-14
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/api-web3identity-com-9496776f
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_VYlNUWCdhz1yrtFTK_hn7

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 api-web3identity-com-9496776f
```

Example prompt: Can you estimate the market value of the ENS name 'punk.eth' — I'm thinking about listing it for sale and want to know what it might be worth based on its length and character composition?

## When to prefer this

Use this endpoint when you need a quick programmatic valuation of an ENS name for listing, buying, or portfolio assessment purposes. Prefer this over manual market research when you want a data-driven estimate that accounts for name length and character rarity alongside live market signals.

## Known failure modes

- ENS name not found or unregistered — returns null or 404
- Invalid ENS name format — returns validation error
- Market data temporarily unavailable — may return partial estimate or error
- Name contains unsupported character set — returns error
- Rate limit exceeded — returns 429

## How this service works

ENS name valuation estimate based on length, characters, and market data

## Output

Returns an estimated valuation for the ENS name, incorporating factors like name length, character set (numeric, alphabetic, special), rarity signals, and aggregated secondary market data to produce a price estimate in ETH or USD.

## Example request

```json
{
 "name": "vitalik.eth"
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/api-web3identity-com-9496776f/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from api.web3identity.com](https://www.zero.xyz/host/api.web3identity.com/llms.txt)