# Delx Chain Network Info

> Delx Chain Network Info is a paid API for AI agents from api.delx.ai, paid per call via x402, $0.001/call, status unknown (last checked 2026-10-20).

Look up blockchain network metadata and EVM chain IDs from a static first-party registry by network name or chain ID.

## Facts

- Endpoint: POST https://api.delx.ai/api/v1/x402/chain-network-info?utm_source=zero.xyz
- Price: $0.001/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-20
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/delx-chain-network-info-f65ed7e6
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_nZEwM6nUgqbvIyQsGG4XA

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 delx-chain-network-info-f65ed7e6 -d '<json body>'
```

Example prompt: Can you look up the chain ID and network metadata for Polygon using the Delx chain registry?

## When to prefer this

Use this endpoint when an agent needs to resolve a human-readable blockchain network name to its EVM chain ID, or vice versa, without needing live on-chain data such as balances, gas prices, or block info. Prefer this over full RPC providers when the task is purely metadata lookup — it is cheaper, faster, and deterministic.

## Known failure modes

- Unknown network name or alias returns an error or empty result
- Chain ID not in the supported registry returns no match
- Invalid chain_id type (non-integer) causes a validation error
- Both network and chain_id omitted returns full registry rather than a specific entry

## How this service works

Look up supported blockchain network metadata and chain IDs for $0.001 USDC. Static first-party registry only—no live RPC, balances, blocks, receipts, gas, or contract reads. Call when you need this bounded result without an API key or subscription. Returns machine-readable JSON via x402 on Base or Solana. Limitation: results cover only the supplied input or one bounded public endpoint at request time; callers must verify before acting.

## Output

Returns metadata about one or more supported blockchain networks, including chain ID, network name, and aliases. If a specific network name or chain ID is provided, returns the matching entry; otherwise returns the full registry of supported networks.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "network": {
   "type": "string",
   "description": "Optional network name or alias; omit to return the full registry."
  },
  "chain_id": {
   "type": "integer",
   "maximum": 18446744073709552000,
   "minimum": 1,
   "description": "Optional EVM decimal chain ID; pass this instead of network."
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "result": {
   "schema": "delx/chain-network-info/v1",
   "source": "Delx first-party static network registry",
   "live_rpc": false,
   "networks": [
    {
     "caip2": "eip155:8453",
     "status": "static_registry",
     "network": "base",
     "chain_id": 8453,
     "chain_family": "evm",
     "display_name": "Base Mainnet"
    }
   ],
   "data_mode": "static_registry",
   "freshness": "Metadata is versioned, not a live chain-state read.",
   "matched_by": "network",
   "not_included": [
    "balances",
    "blocks",
    "receipts",
    "transactions",
    "gas",
    "contract_reads"
   ],
   "network_count": 1,
   "registry_version": "2026-08-01"
  },
  "tool_name": "get_chain_network_info"
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/delx-chain-network-info-f65ed7e6/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from api.delx.ai](https://www.zero.xyz/host/api.delx.ai/llms.txt)