# Web3Identity Blockchain Networks List

> Web3Identity Blockchain Networks List is a paid API for AI agents from api.web3identity.com, paid per call via x402, $0.010000/call, status unknown (last checked 2026-09-14).

Returns a list of all supported blockchain networks with their IDs, names, symbols, and RPC endpoints

## Facts

- Endpoint: GET https://api.web3identity.com/api/chains
- Price: $0.010000/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-f0cbcba9
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_K3PDV5M145c0F9zI9TtP1

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-f0cbcba9
```

Example prompt: Can you pull up the full list of blockchain networks that web3identity supports, including their chain IDs, symbols, and RPC endpoints?

## When to prefer this

Use this endpoint when an agent needs to discover which blockchain networks are available on the web3identity platform, especially to resolve chain names to IDs or to obtain RPC URLs for programmatic blockchain access. Prefer this over hardcoding chain data when you need an up-to-date registry of supported networks.

## Known failure modes

- Payment required (402) if x402 micropayment header is missing or insufficient
- Service unavailable if the upstream chain registry is unreachable
- Empty or partial chain list if the registry data is stale

## How this service works

List all blockchain networks with details and RPC endpoints

## Output

Returns a JSON object with a count of supported chains and an array of chain objects, each containing an integer chain ID, human-readable network name, native token symbol, and RPC endpoint URL.

## Example request

```json
{
 "input": {
  "type": "http",
  "method": "GET",
  "queryParams": {}
 }
}
```

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "$schema": "https://json-schema.org/draft/2020-12/schema",
 "required": [
  "input"
 ],
 "properties": {
  "input": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string",
     "const": "http"
    },
    "method": {
     "enum": [
      "GET",
      "HEAD",
      "DELETE"
     ],
     "type": "string"
    },
    "queryParams": {
     "type": "object",
     "properties": {}
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object",
     "properties": {
      "count": {
       "type": "number"
      },
      "chains": {
       "type": "array",
       "items": {
        "properties": {
         "id": {
          "type": "number"
         },
         "rpc": {
          "type": "string"
         },
         "name": {
          "type": "string"
         },
         "symbol": {
          "type": "string"
         }
        }
       }
      }
     }
    }
   }
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/api-web3identity-com-f0cbcba9/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)