x402 census · sellers · chain.openverbs.com · JSON
chain.openverbs.com unverified
chain.openverbs.com lists 24 x402 resources in cdp; 0 answered a valid 402 to an unpaid GET, 0 are dead; prices $0.001 to $0.006; on-chain 5 payers, 197 payments, $1.35 USDC; discovery files: none.
Listed resources
24
POST 24
Valid 402
0 / 0
verdict unverified
Dead
0
none
Prices
$0.001–$0.006
median $0.004; networks base
Payers on record
5
197 payments, $1.35 USDC, last 2026-09-30
Sampler share
100.0%
payments from monitor/indexer-shaped wallets
Discovery files on the host (checked 2026-09-30)
| File | Status | Detail |
|---|---|---|
| /.well-known/x402 | absent (HTTP no answer) | |
| /openapi.json | absent (HTTP no answer) | |
| /llms.txt | absent (HTTP no answer) | |
| /.well-known/agent-card.json | absent (HTTP no answer) |
On-chain settlement facts (public payTo addresses)
5 distinct paying wallets, 197 payments, $1.35 USDC between 2026-09-09 and 2026-09-30; 100.0% of payments came from sampler-shaped wallets. Source: forensics-2026-09-30; the payTo also receives for 90 other hosts; on-chain totals are per address, not per host.
payTo: 0xb3f4de103F34b99f0Da19B4F16D6B53a14C2194A. The same payTo also receives for 90 other hosts: airport.openverbs.com, astro.openverbs.com, bitwise.openverbs.com, braille.openverbs.com, checkdigit.openverbs.com, checksum.openverbs.com, chem.openverbs.com, chemeq.openverbs.com, color.openverbs.com, combinatorics.openverbs.com, creditcard.openverbs.com, crypto.openverbs.com and more; on-chain totals are per address, not per host.
Resources (24)
| Resource | Price | Network | Verdict | Catalogs | Description |
|---|---|---|---|---|---|
| POST /v1/block | $0.001 | base | unprobed | cdp | Live block summary by number, hex, or tag (latest/earliest/pending/safe/finalized; defaul… |
| POST /v1/token-balance | $0.002 | base | unprobed | cdp | Live ERC-20 token balance held by a wallet: calls `balanceOf(address)` on the token contr… |
| POST /v1/token | $0.002 | base | unprobed | cdp | Live ERC-20 metadata read directly from the contract: name, symbol, decimals and total su… |
| POST /v1/address | $0.002 | base | unprobed | cdp | Native ETH / wallet balance for an address on any EVM chain: native balance (wei + ether)… |
| POST /v1/tx | $0.003 | base | unprobed | cdp | Live status and details of a transaction by hash: success/failed/pending, from/to, value … |
| POST /v1/gas | $0.002 | base | unprobed | cdp | Live gas conditions for an EVM chain: current gas price, the latest block's base fee (EIP… |
| POST /v1/btc-tx | $0.006 | base | unprobed | cdp | Look up a Bitcoin transaction by txid: confirmation status, block height and time, fee (s… |
| POST /v1/btc-address | $0.006 | base | unprobed | cdp | Balance and activity for a Bitcoin address (base58 1…/3… or bech32 bc1…): confirmed balan… |
| POST /v1/btc-mempool | $0.006 | base | unprobed | cdp | Live snapshot of the Bitcoin mempool: number of unconfirmed transactions, total pending v… |
| POST /v1/btc-fees | $0.006 | base | unprobed | cdp | Live recommended Bitcoin transaction fee rates (in sat/vB) for next-block, ~30-minute, ~1… |
| POST /v1/explain | $0.006 | base | unprobed | cdp | Decode a transaction into plain language: native ETH transfer, contract call (with decode… |
| POST /v1/ens-resolve | $0.003 | base | unprobed | cdp | Resolve an ENS name (like alice.eth) to its Ethereum address, read live from the ENS reso… |
| POST /v1/token-risk | $0.006 | base | unprobed | cdp | Deterministic risk screen of an ERC-20 token from on-chain bytecode and metadata, no thir… |
| POST /v1/ens-reverse | $0.003 | base | live re-probed 2026-10-01 | cdp | Reverse-resolve an Ethereum address to its primary ENS name (the reverse record set by th… |
| POST /v1/nft-metadata | $0.006 | base | live re-probed 2026-10-01 | cdp | Resolve one NFT (contract + tokenId) into normalized metadata: name, description, image, … |
| POST /v1/ens-records | $0.002 | base | live re-probed 2026-10-01 | cdp | Read an ENS name's address plus its text records (avatar, url, email, description, com.tw… |
| POST /v1/receipt | $0.003 | base | live re-probed 2026-10-01 | cdp | Live transaction receipt by hash via `eth_getTransactionReceipt`: success/failed status, … |
| POST /v1/token-allowance | $0.002 | base | live re-probed 2026-10-01 | cdp | Live ERC-20 spending allowance an owner has granted a spender: calls `allowance(owner, sp… |
| POST /v1/decode | $0.004 | base | unprobed | cdp | Turn a 4-byte function selector or full calldata into its human-readable function signatu… |
| POST /v1/proxy | $0.004 | base | unprobed | cdp | Detect whether a contract is an upgradeable proxy and resolve its implementation: reads t… |
| POST /v1/gas-estimate | $0.004 | base | unprobed | cdp | Simulate a transaction before signing: runs `eth_estimateGas` for `{ to, from?, data?, va… |
| POST /v1/abi | $0.006 | base | unprobed | cdp | Get the verified contract ABI and verification metadata for a deployed contract by addres… |
| POST /v1/logs | $0.006 | base | unprobed | cdp | Query a contract's event logs over a bounded block range via `eth_getLogs`: filter by `ad… |
| POST /v1/read-contract | $0.006 | base | unprobed | cdp | Call a read-only (view/pure) function on any deployed contract via eth_call and get the d… |
Counting the latest re-probes of the first 24 resources, 5 answer a valid 402 now. Catalog rows: cdp 24. Listed since at least 2026-09-27; last catalog update 2026-09-27. CDP counters: 128 calls, 25 payer-rows in 30 days (catalog-reported).
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Paid report (x402)
GET https://bazaar.agentexchange.work/seller/chain.openverbs.com/report.json re-probes up to 18 of these resources right now, re-fetches the manifest and returns the whole record for $0.05 USDC on Base. Unpaid requests answer 402 with the terms. Pricing.