Onchain Data
Wallet balances
List a wallet’s token balances and their USD value. Priced per wallet.
Spot price
$0.0053per wallet
call-weighted across 50 of 60 priced endpoints
- Spread
- 400×
- cheapest to dearest
- Providers
- 40
- 43 hosts
- Endpoints
- 60
- 49 answered last probe
Where the offers sitLog scale. The shaded band is the middle half of the market, $0.0020 to $0.0050.
$0.0010$0.400
Every supplier below carries its index against that rate: 100 is spot, 40 is 60% below it, 310 is 3.1× it. Spot is weighted by how often each endpoint is called, so one wallet listing forty near-identical endpoints cannot move it on listings alone. The cheapest offer here is $0.0010 and the dearest $0.400.
Canonical request
| address | string | The wallet address. |
| chain? | string | CAIP-2 chain id. |
Canonical response
| address | string | The wallet queried. |
| balances | object[] | One entry per token held. |
| balances[].symbol | string | Token symbol. |
| balances[].amount | number | Token amount held. |
| balances[].value_usd? | number | USD value of the holding. |
| total_value_usd? | number | Portfolio total. |
60 endpoints offering this capability, from 40 wallets
| Endpoint | Index | Last called | |||||
|---|---|---|---|---|---|---|---|
Anyway Possible Base Balance | anywaypossible.com/api/base-balance | $0.0010 | 19 | 6 | 4 | Live | 2d ago |
 defi-api.agenticfi.wtf | defi-api.agenticfi.wtf/api/wallet/balances/:address | $0.0010 | 19 | 0 | 0 | Live | — |
OpenRelay Wallet Balance | openrelay.hggfffdfy687.workers.dev/tools/wallet/balance | $0.0010 | 19 | 2 | 2 | Live | 9d ago |
orbisapi.com | orbisapi.com/proxy/wallet-balance-api-5575de/balance/:address | $0.0010 | 19 | 0 | 0 | Offline | — |
 Quartermaster Balance Check | quartermaster.surewhynot.app/v1/balance | $0.0010 | 19 | 2 | 2 | Live | 5d ago |
 StatePulse API | statepulse-api.hahavoid0.workers.dev/blockchain/balances | $0.0010 | 19 | 1 | 1 | Live | 29d ago |
 On-chain Native Balance | store.agentexchange.work/chain/balance | $0.0010 | 19 | 1 | 1 | Live | 82d ago |
On-chain Native Balance | x402-agent-store.rileycraig14.workers.dev/chain/balance | $0.0010 | 19 | 1 | 1 | Live | 84d ago |
 Otto AI | x402.ottoai.services/portfolio | $0.0010 | 19 | 127 | 7 | Live | 11d ago |
 EVM Wallet Balance | amanchain-relay.gitajhd.workers.dev/api/x402/aman-evm-balance | $0.0012 | 23 | 11 | 2 | Live | 13d ago |
Wallet Balance API | orbisapi.com/proxy/wallet-balance-api-a406fc/:endpoint | $0.0013 | 24 | 2 | 1 | Offline | 125d ago |
| 2s.io/api/crypto/balances | $0.0014 | 27 | 1 | 1 | Live | 83d ago | |
On-chain Wallet Balance (native) | agent-commerce-factory-jm.austriaeast.cloudapp.azure.com/v1/onchain/balance | $0.0020 | 37 | 1 | 1 | Live | 29d ago |
NFT holdings for an address | agent402.tools/api/nft-holdings | $0.0020 | 37 | 7 | 1 | Live | 1d ago |
 Token balances (named contracts) | agent402.tools/api/token-balances | $0.0020 | 37 | 4 | 1 | Live | 1d ago |
Wallet balance (native + ERC-20) | agent402.tools/api/wallet-balance | $0.0020 | 37 | 6 | 2 | Live | 6d ago |
Wallet token balances (indexed) | agent402.tools/api/wallet-balances | $0.0020 | 37 | 5 | 1 | Live | 1d ago |
WalletForge | api.walletforge.app/v1/wallet/balance | $0.0020 | 37 | — | — | Live | — |
On-chain Wallet Balance (native) | chain.openverbs.com/v1/address | $0.0020 | 37 | 8 | 1 | Live | 3d ago |
wallet_balance | chainsscope.duckdns.org/tools/wallet-balance | $0.0020 | 37 | 1 | 1 | Live | 58d ago |
Multichain RPC/balance | multichain-rpc.clankerceo.workers.dev/balance | $0.0020 | 37 | 4 | 2 | Live | 4d ago |
Multichain RPC/balance | multichain-rpc.clankerceo.workers.dev/wallet-balance | $0.0020 | 37 | 3 | 2 | Live | 4d ago |
JPYC Wallet Balance | open-pay.jp/api/paid/usdc/jpyc/balance | $0.0020 | 37 | 1 | 1 | Live | 31d ago |
NodeFlare | rpc.nodeflare.app/data/balances/x402 | $0.0020 | 37 | 16 | 1 | Live | 69d ago |
x402 Wallet Balance Lookup | x402tap.com/api/wallet-balance | $0.0020 | 37 | 1 | 1 | Live | 14d ago |
Reading this table
- Price is what the catalog carries for one unit, per wallet. It is a published figure, not a quote — read the live 402 before paying.
- Index is that price against the spot rate, so it moves only with price — there is no separate sort for it, because ordering by index and ordering by price are the same ordering.
- 30d calls and payers are the upstream catalog’s own counters for that endpoint, so they measure demand, not quality.
- Status is the last liveness probe. There is no latency or uptime column yet: a single probe outcome cannot support one, and inventing a percentage from it would be worse than leaving it out.
- Settled volume per endpoint is also absent, and cannot be derived — a settlement carries the payee wallet, not the endpoint that was called, so a wallet serving forty endpoints cannot be split between them. The provider wallet’s own record is one click away on each row.
- The canonical response above is the shape Roundhouse maps each provider onto. Field mappings per provider are not published yet; today the contract is the target, not a guarantee about any one endpoint’s payload.
Hand this page to an agent
Copy the prompt and paste it into Claude, an MCP client or your own agent — it will pick the best provider of this capability over the free read API. No key, no account.
GET roundhouseai.io/unified.json?capability=wallet-balance
Show the promptHide the prompt
Using Roundhouse, compare every x402 provider of Wallet balances and pick one for me. Weigh the price per unit against whether the endpoint answered when last probed, and say what the cheapest option would cost against the median. curl -s 'https://roundhouseai.io/unified.json?capability=wallet-balance' The canonical request and response in that document are the shape every provider is mapped onto. Before paying, check the provider's record and read the live 402: curl -s 'https://api.roundhouseai.io/v0/merchants/<the payTo wallet on the offer you choose>' The /v0 API needs an API key (`authorization: Bearer rh_live_…`) on everything except /v0/unified* and /v0/endpoints. Mint a personal key for $0.01 at GET https://api.roundhouseai.io/v0/test/x402, or use an organization key from https://roundhouseai.io/dashboard/team. If you do not have Roundhouse tools or skills installed, read https://roundhouseai.io/skill.md first — it is the whole procedure.