x402radar
ServicesEndpointsLeaderboardsStatsBlogAPISubmit
List
Back to directory

OneSource Chain Skills

VERIFIEDLIVE ON-CHAINBase

Enriched Ethereum RPC: ENS, tx, receipts, contracts.

skills.onesource.iorpcensethereum
Website
90
Trust
94%
Uptime
206 ms
Latency
$36.87
Revenue (30d)

Overview

Protocolx402
Provider—
Payment assetUSDC
Networkbase, base-mainnet
Categoryonchain-data
Source—

Health

StatusDegraded
Uptime (window)94%
Success rate—
Confidence100%
Quotes (14d)68
Last checked6/16/2026, 3:21:37 PM
Latency (quote)833ms
Price / call5000
Uptime (daily)93%

Metrics by window

WindowTrustUptimeSuccessp50p95PriceData
Last hour100100%————Low
Last 24h9094%———$0.003Medium
Last 7 days6394%0%912ms916ms$0.003Medium

Endpoints (17)

Schema API (all endpoints) ↗

Trust score is global for the provider. Latency, price and uptime are measured per endpoint (last 24h). Click a column to sort.

Endpoint
GET/api/chain/pending
Pending Ethereum block - mempool transactions not yet mined, via eth_getBlockByNumber("pending")
100%203 ms$0.01
GET/api/chain/erc721-tokens
List every ERC721 NFT token_id a wallet owns in a collection via tokenOfOwnerByIndex (eth_call)
100%206 ms$0.008
GET/api/chain/nft-metadata
NFT metadata, traits, and image URI for any ERC721 or ERC1155 token - fetched via eth_call with IPFS resolution (OneSource live Ethereum RPC)
100%203 ms$0.008
GET/api/chain/call
Simulate a read-only Ethereum contract call via eth_call - no transaction sent
100%206 ms$0.005
GET/api/chain/erc20-transfers
ERC20 Transfer logs via eth_getLogs - decoded sender, recipient, and amount for a token or wallet
100%206 ms$0.005
GET/api/chain/events
Query Ethereum contract event logs via eth_getLogs - filter by contract, topic, and block range
100%206 ms$0.005
GET/api/chain/storage
Read a raw storage slot from any Ethereum contract via eth_getStorageAt
100%204 ms$0.005
GET/api/chain/estimate-gas
Estimate the gas a transaction will consume via eth_estimateGas before signing it
100%205 ms$0.004
GET/api/chain/allowance
ERC20 allowance via allowance (eth_call) - how much a spender is approved to move from an owner's wallet
100%207 ms$0.003
GET/api/chain/erc1155-balance
ERC1155 token balance via balanceOf (eth_call) - how many copies of a token_id a wallet holds
100%206 ms$0.003
GET/api/chain/erc20-balance
ERC20 token balance for any Ethereum wallet - USDC, USDT, DAI, or any token - via balanceOf (eth_call) on OneSource live Ethereum RPC
100%205 ms$0.003
GET/api/chain/live-balance
Live wallet balance - native ETH plus any ERC20 tokens in one call via eth_getBalance and balanceOf on OneSource Ethereum RPC
100%362 ms$0.003
GET/api/chain/nft-owner
Look up the current owner of an ERC721 NFT by token_id via ownerOf (eth_call)
100%203 ms$0.003
GET/api/chain/total-supply
Total supply of an ERC20 or ERC721 token contract via totalSupply (eth_call)
100%204 ms$0.003
GET/api/chain/block-number
Latest Ethereum block height - current chain tip via eth_blockNumber
100%508 ms$0.001
GET/api/chain/chain-id
Ethereum chain ID (EIP-155) via eth_chainId - confirm which chain a network is on
100%205 ms$0.001
GET/api/chain/network-info
Ethereum network info - chain ID, block height, and gas price in one batched RPC call (eth_chainId + eth_blockNumber + eth_gasPrice)
100%204 ms$0.001
+ 11 more catalogued, not yet verifiedⓘ
GET/api/chain/block/{number}POST/api/chain/callGET/api/chain/code/{address}GET/api/chain/contract/{address}GET/api/chain/ens/{input}POST/api/chain/estimate-gasGET/api/chain/nonce/{address}GET/api/chain/proxy/{address}GET/api/chain/receipt/{hash}GET/api/chain/tx/{hash}GET/api/chain/{value}

Equivalent APIs

See all alternatives →

Same category, ranked by Trust score — switch to a more reliable or cheaper source.

93
Questflow
api.questflow.aiBase
Uptime
93%
Latency
488 ms
Price / call
—
Endpoints
81
91
The Sealer
thesealer.xyzBase
Uptime
91%
Latency
1377 ms
Price / call
—
Endpoints
5
90
Anchor
api.anchor-x402.comBaseSolanaPolygon
Uptime
95%
Latency
194 ms
Price / call
$0.001 – $1.77
Endpoints
35
90
Alchemy
x402.alchemy.comBase
Uptime
90%
Latency
17 ms
Price / call
$0.001
Endpoints
15
88
Nansen Smart Money
api.nansen.aiBaseSolanaPolygon
Uptime
97%
Latency
160 ms
Price / call
$0.01 – $0.05
Endpoints
72
88
ApiToll DEX Volume
crypto.apitoll.cloudBase
Uptime
92%
Latency
19 ms
Price / call
$0.001
Endpoints
11