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api.onesource.io

https://api.onesource.io
● healthy general

ERC20 token balance for any Ethereum wallet - USDC, USDT, DAI, or any token - via balanceOf (eth_call) on OneSource live Ethereum RPC

Category
general
Chains
eip155:8453
Price
$0.0010–$0.0080 USDC

Quality grade

How grading works
A 100.0 / 100
Availability 40.0 / 40
Endpoint responded (HTTP 200)
Payability 20.0 / 20
  • ✓ Answers a real HTTP 402 challenge
  • ✓ Publishes a /.well-known/x402 descriptor
  • ✓ Payment address on record
  • ✓ Settlement network declared
  • ✓ Price declared
Demand 40.0 / 40
1940 distinct payers, 22304 USDC transfers in the last 30 days
Owner verified 0.0 / 3
Nobody has claimed this listing yet
Endpoint last checked 20 h ago. On-chain activity last read 8 d ago. Availability and on-chain demand are both re-probed daily; the grade updates automatically on the next pass.

Paid endpoints

71 resource(s) advertised by this origin.

https://api.onesource.io/api/chain/allowance
https://api.onesource.io/api/chain/block-number
https://api.onesource.io/api/chain/block/%7Bnumber%7D
https://api.onesource.io/api/chain/call
https://api.onesource.io/api/chain/chain-id
https://api.onesource.io/api/chain/code/%7Baddress%7D
https://api.onesource.io/api/chain/contract/%7Baddress%7D
https://api.onesource.io/api/chain/ens/%7Binput%7D
https://api.onesource.io/api/chain/erc1155-balance
https://api.onesource.io/api/chain/erc20-balance
https://api.onesource.io/api/chain/erc20-transfers
https://api.onesource.io/api/chain/erc721-tokens
https://api.onesource.io/api/chain/estimate-gas
https://api.onesource.io/api/chain/events
https://api.onesource.io/api/chain/live-balance
https://api.onesource.io/api/chain/network-info
https://api.onesource.io/api/chain/nft-metadata
https://api.onesource.io/api/chain/nft-owner
https://api.onesource.io/api/chain/nonce/%7Baddress%7D
https://api.onesource.io/api/chain/pending

How to call

cURL · x402-fetch / x402-axios will auto-handle 402
curl -X POST https://api.onesource.io/api/chain/allowance
/.well-known/x402.json
https://api.onesource.io/.well-known/x402

Listed in

Directories this entry was found in.

cdp-bazaar x402scan paygent-discover