# EVM Chains API > A live directory of every EVM-compatible blockchain, keyless. Look up any chain by its chain ID or by name and get its native currency, public RPC endpoints, block explorers, info URL, faucets and testnet flag; search the 2,600+ networks; or just get a chain working public RPC URLs. The networks / chain-ID layer for wallets, dapps, RPC routers, block explorers and multi-chain tooling. Live, nothing stored beyond a short cache. Backed by the open chainid.network (ethereum-lists/chains) registry. ## Authentication All requests require your oanor API key in the `x-oanor-key` header. Get one at https://www.oanor.com/developer/keys. ```bash curl -H "x-oanor-key: oanor_live_…" "https://api.oanor.com/evmchains-api/..." ``` ## Pricing - **Free** (Free) — 4,000 calls/Mo, 3 req/s - **Starter** ($9/Mo) — 100,000 calls/Mo, 8 req/s - **Pro** ($31/Mo) — 650,000 calls/Mo, 20 req/s - **Business** ($89/Mo) — 4,300,000 calls/Mo, 50 req/s ## Endpoints ### Chains #### `GET /v1/chain` — Full details for one EVM chain by chain id **Parameters:** - `id` (query, required, string) — Numeric chain id (1 = Ethereum, 137 = Polygon, 8453 = Base, 42161 = Arbitrum) Example: `8453` **Example:** ```bash curl -H "x-oanor-key: $KEY" \ "https://api.oanor.com/evmchains-api/v1/chain?id=8453" ``` **Response:** ```json { "data": { "rpc": [ "https://mainnet.base.org/", "https://developer-access-mainnet.base.org/", "https://base.gateway.tenderly.co", "https://base-rpc.publicnode.com", "https://rpcfree.com/base-rpc", "https://rpc.baseazul.dev" ], "name": "Base", "chain": "ETH", "source": "chainid.network", "faucets": [], "chain_id": 8453, "info_url": "https://base.org", "explorers": [ { "url": "https://basescan.org", "name": "basescan", "standard": "EIP3091" }, { "url": "https://base.blockscout.com", "name": "basescout", "standard": "EIP3091" }, { "url": "https://base.dex.guru", "name": "dexguru", "standard": "EIP3091" }, { "url": "https://base.superscan.network", "name": "Routescan", "standard": "EIP3091" } ], "network_id": 8453, "short_name": "base", "native_currency": { "name": "Ether", "symbol": "ETH", "decimals": 18 } }, "meta": { "timestamp": "2026-06-14T08:04:18.109Z", "request_id": "6e7e172b-d9de-4833-98d0-5e4d5888f182" }, "status": "ok", "message" …(truncated, see openapi.json for full schema) ``` #### `GET /v1/list` — Paginated directory of all EVM chains **Parameters:** - `offset` (query, optional, string) — Pagination offset (default 0) Example: `0` - `limit` (query, optional, string) — Results (1-200, default 50) Example: `50` **Example:** ```bash curl -H "x-oanor-key: $KEY" \ "https://api.oanor.com/evmchains-api/v1/list?offset=0&limit=50" ``` **Response:** ```json { "data": { "note": "All EVM chains, ordered by chain id. Use offset/limit to page.", "count": 50, "total": 2651, "chains": [ { "name": "Ethereum Mainnet", "symbol": "ETH", "chain_id": 1, "rpc_count": 13, "short_name": "eth" }, { "name": "Expanse Network", "symbol": "EXP", "chain_id": 2, "rpc_count": 1, "short_name": "exp" }, { "name": "Ropsten", "symbol": "ETH", "chain_id": 3, "rpc_count": 0, "short_name": "rop" }, { "name": "Rinkeby", "symbol": "ETH", "chain_id": 4, "rpc_count": 0, "short_name": "rin" }, { "name": "Goerli", "symbol": "ETH", "chain_id": 5, "rpc_count": 3, "short_name": "gor" }, { "name": "Kotti Testnet", "symbol": "KOT", "chain_id": 6, "rpc_count": 0, "short_name": "kot" }, { "name": "ThaiChain", "symbol": "TCH", "chain_id": 7, "rpc_cou …(truncated, see openapi.json for full schema) ``` #### `GET /v1/rpcs` — Public RPC endpoints for a chain **Parameters:** - `id` (query, required, string) — Numeric chain id Example: `1` **Example:** ```bash curl -H "x-oanor-key: $KEY" \ "https://api.oanor.com/evmchains-api/v1/rpcs?id=1" ``` **Response:** ```json { "data": { "rpc": [ "https://api.mycryptoapi.com/eth", "https://cloudflare-eth.com", "https://ethereum-rpc.publicnode.com", "https://mainnet.gateway.tenderly.co", "https://rpc.blocknative.com/boost", "https://rpc.flashbots.net", "https://rpc.flashbots.net/fast", "https://rpc.mevblocker.io", "https://rpc.mevblocker.io/fast", "https://rpc.mevblocker.io/noreverts", "https://rpc.mevblocker.io/fullprivacy", "https://eth.drpc.org", "https://api.securerpc.com/v1" ], "name": "Ethereum Mainnet", "note": "Public HTTP RPC endpoints (API-key-templated and websocket URLs are excluded).", "count": 13, "source": "chainid.network", "chain_id": 1 }, "meta": { "timestamp": "2026-06-14T08:04:18.260Z", "request_id": "f8526491-b37b-4d24-82fb-62f9653eb1fb" }, "status": "ok", "message": "RPC endpoints retrieved successfully", "success": true } ``` #### `GET /v1/search` — Search chains by name **Parameters:** - `q` (query, required, string) — Name or partial text Example: `arbitrum` - `limit` (query, optional, string) — Results (1-100, default 25) Example: `25` **Example:** ```bash curl -H "x-oanor-key: $KEY" \ "https://api.oanor.com/evmchains-api/v1/search?q=arbitrum&limit=25" ``` **Response:** ```json { "data": { "count": 7, "query": "arbitrum", "chains": [ { "name": "Arbitrum on xDai", "symbol": "xDAI", "chain_id": 200, "rpc_count": 1, "short_name": "aox" }, { "name": "Arbitrum One", "symbol": "ETH", "chain_id": 42161, "rpc_count": 3, "short_name": "arb1" }, { "name": "Arbitrum Nova", "symbol": "ETH", "chain_id": 42170, "rpc_count": 2, "short_name": "arb-nova" }, { "name": "Arbitrum Rinkeby", "symbol": "ETH", "chain_id": 421611, "rpc_count": 1, "short_name": "arb-rinkeby" }, { "name": "Arbitrum Goerli", "symbol": "AGOR", "chain_id": 421613, "rpc_count": 2, "short_name": "arb-goerli" }, { "name": "Arbitrum Sepolia", "symbol": "ETH", "chain_id": 421614, "rpc_count": 2, "short_name": "arb-sep" }, { "name": "Arbitrum Blueberry", "symbol": "CGT", "chain_id": 88153591557, …(truncated, see openapi.json for full schema) ``` ### Meta #### `GET /v1/meta` — Service metadata & live sample **Example:** ```bash curl -H "x-oanor-key: $KEY" \ "https://api.oanor.com/evmchains-api/v1/meta" ``` **Response:** ```json { "data": { "note": "chain and rpcs take a numeric chain id (id=1 = Ethereum Mainnet, 137 = Polygon, 8453 = Base, 42161 = Arbitrum One). search takes q (e.g. ethereum) and optional limit. list takes optional offset and limit.", "sample": { "name": "Ethereum Mainnet", "chain_id": 1, "rpc_count": 13 }, "source": "chainid.network (ethereum-lists/chains) open registry, live", "service": "evmchains-api", "endpoints": { "GET /v1/list": "Paginated directory of all EVM chains (offset, limit).", "GET /v1/meta": "This document.", "GET /v1/rpcs": "Public RPC endpoints for a chain (id=1).", "GET /v1/chain": "Full details for one EVM chain by chain id (id=1).", "GET /v1/search": "Search chains by name (q=ethereum)." }, "description": "A live directory of every EVM-compatible blockchain, keyless. Look up any chain by its chain ID or name and get its native currency, public RPC endpoints, block explorers, info URL, faucets and testnet flag; search the 2,600+ networks; or just get a chain's working public RPC URLs. The networks / chain-ID layer for wallets, dapps, RPC routers, explorers and multi-chain tooling. Live, nothing stored beyond a short cache. Source: the open chainid.network (ethereum-lists/chains) registry.", "upstream_status": "ok" }, "meta": { "timestamp": "2026-06-14T08:04:18.415Z", " …(truncated, see openapi.json for full schema) ``` --- Marketplace page: https://www.oanor.com/api/evmchains-api OpenAPI spec: https://www.oanor.com/api/evmchains-api/openapi.json