# Ethereum Node Count

> Ethereum Node Count is a paid API for AI agents from stablecrypto.dev, paid per call via x402, $0.01/call, status unknown (last checked 2026-09-15).

Returns the total count of Ethereum nodes on a specified EVM-compatible chain using Etherscan stats data

## Facts

- Endpoint: POST https://stablecrypto.dev/api/etherscan/stats/nodecount
- Price: $0.01/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-15
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/ethereum-node-count-7fbcd096
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_uDyWDFBrcVgWmrSKSuaVt

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 ethereum-node-count-7fbcd096 -d '<json body>'
```

Example prompt: How many nodes are currently running on the Ethereum mainnet (chain ID 1)?

## When to prefer this

Use this endpoint when you need a quick lookup of the current Ethereum (or EVM-compatible chain) node count, particularly when relying on Etherscan's canonical stats. Prefer this over running your own node discovery if you just need a scalar count for monitoring, reporting, or decentralization analysis.

## Known failure modes

- Invalid or unsupported chain ID returns an error or empty response
- Etherscan upstream API downtime causes failure
- Node count data may be stale if Etherscan hasn't refreshed recently
- Non-EVM chains or chain IDs not supported by Etherscan will fail

## How this service works

Pay-per-request access to CoinGecko, DefiLlama, Alchemy, and Etherscan APIs. No auth, no subscriptions.

## Output

Returns the total count of Ethereum nodes currently active on the specified EVM chain, sourced from Etherscan's stats API

## Example request

```json
{
 "chainid": 1
}
```

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "chainid": {
   "type": "number",
   "description": "EVM chain ID (1=Ethereum, 137=Polygon, 8453=Base, etc.)"
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/ethereum-node-count-7fbcd096/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from stablecrypto.dev](https://www.zero.xyz/host/stablecrypto.dev/llms.txt)