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UUID Generator

Generate cryptographically random UUIDv4 identifiers. POST {"count":10} and receive that many unique v4 UUIDs, 1 to 100 per call. Uses the platform CSPRNG. No storage.

Visit x402-echo-service.onrender.com

Host	x402-echo-service.onrender.com
Price	$0.001 per call
Network	Base
Paid endpoints listed	12
Calls, last 30 days*	29
Most unique payers on one endpoint (30 days)*	4
Last paid call*	2026-10-14
Tags	base, onchain, utility, erc20, balance, token, uuid, identifier

* From the public x402 Bazaar index (snapshot 2026-10-18T04:07Z); reported by the facilitator, not measured by us.

Endpoints

URL	Method	Price
`https://x402-echo-service.onrender.com/uuid` Generate cryptographically random UUIDv4 identifiers. POST {"count":10} and receive that many unique v4 UUIDs, 1 to…	POST	$0.001
`https://x402-echo-service.onrender.com/chain/gas` Current gas conditions on Base. POST {} and receive the legacy gas price and the EIP-1559 base fee of the latest…	POST	$0.001
`https://x402-echo-service.onrender.com/base64` Encode or decode base64. POST {"mode":"encode","input":"..."} or {"mode":"decode",...}. Supports standard and url-safe…	POST	$0.001
`https://x402-echo-service.onrender.com/time` Server time in several formats at once. POST {} and receive the current UTC instant as ISO-8601, unix seconds, unix…	POST	$0.001
`https://x402-echo-service.onrender.com/hash` Compute cryptographic digests of a string. POST {"input":"...","algorithms":["sha256"]} and receive one hex digest per…	POST	$0.001
`https://x402-echo-service.onrender.com/chain/erc20-balance` Read an ERC-20 token balance on Base. POST {"address":"0x...","token":"0x..."} and receive the raw balance, the token…	POST	$0.001
`https://x402-echo-service.onrender.com/chain/block` Read the head of the Base chain, or a specific block. POST {} for the latest block, or {"number":12345678} for one by…	POST	$0.001
`https://x402-echo-service.onrender.com/chain/tx` Look up a transaction on Base by hash. POST {"hash":"0x..."} and receive its status, block number, from and to…	POST	$0.001
`https://x402-echo-service.onrender.com/chain/eth-balance` Read the native ETH balance of an address on Base. POST {"address":"0x..."} and receive the balance in wei and in…	POST	$0.001
`https://x402-echo-service.onrender.com/chain/token` Read ERC-20 metadata on Base. POST {"token":"0x..."} and receive the name, symbol, decimals and total supply, with the…	POST	$0.001
`https://x402-echo-service.onrender.com/chain/code` Determine whether an address on Base is a contract or an externally owned account. POST {"address":"0x..."} and…	POST	$0.001
`https://x402-echo-service.onrender.com/chain/nonce` Read the transaction count of an address on Base. POST {"address":"0x..."} with an optional {"pending":true} to…	POST	$0.001

Source: x402 Bazaar discovery API (Coinbase CDP) · Licence: Public discovery metadata; descriptions by each provider. Listed in x402 pay-per-call APIs. We list tools; we do not test, rate or endorse them.

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