# Saylor Innovations EVM Chain Info Lookup

> Saylor Innovations EVM Chain Info Lookup is a paid API for AI agents from saylorinnovations.com, paid per call via x402, $0.01/call, status unknown (last checked 2026-10-18).

Look up EVM blockchain metadata by chain ID or name — returning native currency, public RPC URLs, block explorers, testnet flag, faucets, and official website from chainid.network

## Facts

- Endpoint: GET https://saylorinnovations.com/api/evm/chain-info?utm_source=zero.xyz
- Price: $0.01/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-18
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/saylor-innovations-evm-chain-info-lookup-58fe617b
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_SRKfvVKuftLcJSRv82FGn

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 saylor-innovations-evm-chain-info-lookup-58fe617b
```

Example prompt: What are the public RPC URLs, block explorer links, and native currency for Base mainnet — chain ID 8453?

## When to prefer this

Choose this endpoint when you need authoritative EVM chain metadata such as RPC URLs, block explorers, native currency, or testnet status for any EVM-compatible network. It covers a wide range of chains sourced from chainid.network and is ideal for wallet configuration, developer tooling, chain validation, or any agent workflow that needs to programmatically resolve chain details from a name or numeric ID. Prefer this over hardcoded configs when you need up-to-date or lesser-known chain information.

## Known failure modes

- No matching chains found for the given query — returns empty chains array
- Ambiguous name fragment matching multiple chains — returns all matches, agent must disambiguate
- Chain exists in chainid.network but has no public RPCs listed — field may be empty
- Stale data if chainid.network has not been recently updated for newer or deprecated chains
- Invalid or non-EVM chain ID returns no results

## How this service works

Look up any EVM chain by id or name - native currency, public RPC URLs, block explorers, testnet flag, faucets, status and website from chainid.network

## Output

Returns a JSON object with the interpreted query, number of matches, and an array of matching chain objects — each containing chain ID, network ID, name, short name, native currency details, public RPC URLs, block explorer URLs, testnet boolean, faucet URLs, official website, current status, and parent chain info for L2s. Also includes a source attribution (chainid.network) and optional notes.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "$schema": "https://json-schema.org/draft/2020-12/schema",
 "required": [
  "input"
 ],
 "properties": {
  "input": {
   "type": "object",
   "required": [
    "type",
    "method"
   ],
   "properties": {
    "type": {
     "type": "string",
     "const": "http"
    },
    "method": {
     "enum": [
      "GET"
     ],
     "type": "string"
    },
    "queryParams": {
     "type": "object",
     "required": [
      "q"
     ],
     "properties": {
      "q": {
       "type": "string",
       "description": "Chain id (8453) or name fragment (base, polygon, arbitrum)"
      }
     }
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string",
     "const": "json"
    },
    "example": {
     "type": "object",
     "required": [
      "query",
      "chains"
     ],
     "properties": {
      "note": {
       "type": "string",
       "description": "Caveat or context for reading the result"
      },
      "query": {
       "type": "string",
       "description": "The query as the server interpreted it"
      },
      "chains": {
       "type": "array",
       "items": {
        "type": "object",
        "properties": {
         "name": {
          "description": "Name"
         },
         "chain": {
          "description": "Blockchain the data is for"
         },
         "parent": {
          "description": "Parent chain for L2s, null otherwise"
         },
         "status": {
          "description": "Current status"
         },
         "faucets": {
          "type": [
           "array",
           "null"
          ],
          "description": "Faucet URLs for testnets"
         },
         "testnet": {
          "type": [
           "boolean",
           "null"
          ],
          "description": "True for test networks"
         },
         "website": {
          "type": [
           "string",
           "null"
          ],
          "description": "Official website"
         },
         "chain_id": {
          "description": "EVM chain id"
         },
         "explorers": {
          "type": [
           "array",
           "null"
          ],
          "description": "Block explorer URLs"
         },
         "network_id": {
          "description": "Network id identifier"
         },
         "short_name": {
          "description": "Short name"
         },
         "public_rpcs": {
          "description": "Pu
… (truncated)
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/saylor-innovations-evm-chain-info-lookup-58fe617b/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from saylorinnovations.com](https://www.zero.xyz/host/saylorinnovations.com/llms.txt)