MARKET MONITOR / CATALOGUE Services 131,296 MCP listed 40,658 x402 90,705 Rails Base / Solana / Polygon / Arbitrum Imported 2026-10-30 · 3 sources
Task

Balance

122 services carry this tag in their source record. Tags come from the provider, not from us — a tag is a claim about what the service does, not proof that it does it well.

On-chain Wallet Balance (native) x402 REST usage

Native ETH / wallet balance for an address on any EVM chain: native balance (wei + ether), transaction count (nonce), and whether it's a contract or an externally-owned account (with deployed code size). Reads live on-ch...

chain.openverbs.com Crypto & Payments 2 calls / 30d checked 2026-10-30
0.002 USDC per call per call

base-chain-balance x402 REST usage

Native ETH balance for one Base network address, read live from a public Base RPC node (eth_getBalance) and returned with the snapshot block it was read at.

market.561.group Crypto & Payments 3 calls / 30d checked 2026-10-29
0.001 USDC per call per call

Tanod chainpeek x402 REST usage

UTC time and latest Base block. Use when you need a clock.

tanod.dev Crypto & Payments 3 calls / 30d checked 2026-10-29
0.001 USDC per call per call

QuickBuild x402 REST usage

Drop-in OpenAI Embeddings endpoint: POST {input: string | string[], model, encoding_format: float|base64, dimensions} and get {object: "list", data: [{embedding, index}], model, usage}. Models (Cloudflare Workers AI): bg...

quickbuild.quynguyenbac.workers.dev Databases & Storage 2 calls / 30d checked 2026-10-29
0.001 USDC per call per call

x402 Base Tools x402 REST usage

Profile of a Base address: wallet (EOA), EIP-7702 delegated wallet or contract; transaction count; ETH and USDC balances; its primary Basename; the token it is, if it is an ERC-20; and the x402 seller it receives payment...

wt7tysfcmjm8fpzl.68r.lambda-web.us-east-1.on.aws Crypto & Payments 1 calls / 30d checked 2026-10-29
0.001 USDC per call per call

Native Balance x402 REST usage

Read the native ETH balance of an address on Base. POST {"address":"0x..."} and receive the balance in wei and in ether. Live chain state read directly from a node, with no indexer lag and no API key.

x402-echo-service.onrender.com Geo & Maps 1 calls / 30d checked 2026-10-26
0.001 USDC per call per call

ERC-20 Balance x402 REST usage

Read an ERC-20 token balance on Base. POST {"address":"0x...","token":"0x..."} and receive the raw balance, the token decimals and the human-readable amount. Defaults to USDC when token is omitted. Live chain state, no i...

x402-echo-service.onrender.com Data & Finance 1 calls / 30d checked 2026-10-26
0.001 USDC per call per call

Crypto Microdata for Agents x402 REST

Live Korea kimchi premium: Upbit KRW vs global USD for BTC and ETH, plus USD/KRW FX. Korea crypto arb/sentiment signal. Optional symbols=BTC,ETH filter. Alias: /kr/kimchi-premium.

kr-x402-mvp.kgy5612.workers.dev Data & Finance checked 2026-10-30
0.002 USDC per call per call

Wallet Balance x402 REST

Wallet balance on Base (cycle 228 alias path, x402 $0.01) - GET ?address=<0xWALLET> OR ?token=<0xTOKEN> OR ?tokens=<A,B,C> OR ?sample=1 OR POST application/json {address|token|tokens}. KEYLESS public Base JSON-RPC with 6...

6xrkjcfa3yrzvefcpvanurzou4.srv.us Crypto & Payments checked 2026-10-29
0 USDC per call per call

Usdc Balance x402 REST

USDC balance on Base (cycle 228, x402 $0.01) - GET ?address=<0xWALLET> OR ?sample=1 OR POST application/json {address}. KEYLESS public Base JSON-RPC with 6-endpoint failover - no key, no account, no signup. Reads the USD...

6xrkjcfa3yrzvefcpvanurzou4.srv.us Crypto & Payments checked 2026-10-29
0 USDC per call per call

Balance x402 REST

Paid native wallet balance read on Base (cycle 227 alias path, x402 $0.01) - GET ?address=<0xWALLET> OR ?token=<0xTOKEN> OR ?tokens=<A,B,C> OR ?sample=1 OR POST application/json {address|token|tokens}. KEYLESS public Bas...

6xrkjcfa3yrzvefcpvanurzou4.srv.us Crypto & Payments checked 2026-10-29
0 USDC per call per call

Eth Balance x402 REST

Paid ETH native balance read on Base (cycle 227 alias path, x402 $0.01) - GET ?address=<0xWALLET> OR ?token=<0xTOKEN> OR ?tokens=<A,B,C> OR ?sample=1 OR POST application/json {address|token|tokens}. KEYLESS public Base J...

6xrkjcfa3yrzvefcpvanurzou4.srv.us Crypto & Payments checked 2026-10-29
0 USDC per call per call

Live Balance x402 REST

Paid live wallet balance read on Base (cycle 227, x402 $0.01) - GET ?address=<0xWALLET> OR ?token=<0xTOKEN> OR ?tokens=<A,B,C> OR ?sample=1 OR POST application/json {address|token|tokens}. KEYLESS public Base JSON-RPC wi...

6xrkjcfa3yrzvefcpvanurzou4.srv.us Crypto & Payments checked 2026-10-29
0 USDC per call per call

Erc20 Balance x402 REST

Paid ERC-20 token balance on Base (cycle 225, x402 $0.01) - GET ?address=<0xWALLET> OR ?token=<0xTOKEN> OR ?token=USDC OR ?sample=1|2|3 OR POST application/json {address|token}. KEYLESS public Base JSON-RPC -- no key, no...

6xrkjcfa3yrzvefcpvanurzou4.srv.us Crypto & Payments checked 2026-10-29
0 USDC per call per call

Wallet Balance Lookup x402 REST

Live native-asset wallet balance lookup across 6 chains (Bitcoin, Ethereum, Base, Solana, TRON, Ronin) via public RPCs. One call returns the current balance as JSON. No API key, no signup — x402 per-call payment only.

preview-chat-985505b1-9dc0-470f-9fc3-3704d8b625e3.space-z.ai Crypto & Payments checked 2026-10-29
no price published

santyvv-data x402 REST

Decentralised exchange volumes: totals, 24h/7d/30d windows, per-chain and per-protocol breakdowns, all in one payload cached at the edge. For market-structure work and volume share screens.

x402.santyvv.com Data & Finance checked 2026-10-29
0.01 USDC per call per call

Wallet balance x402 REST

Wallet balance on Ethereum, Base, Arc or BNB Chain: the native coin (ETH, BNB, or USDC on Arc), the chain USDC or up to 20 ERC20 tokens you list, the nonce and whether the address is a contract, read at one block. Pass ?...

apexfaucet.xyz Crypto & Payments checked 2026-10-29
0.002 USDC per call per call

Northline ChainKit x402 MCP

Live block height, gas price and fee estimates (transfer, ERC-20 transfer, contract call) for Base or Arc. On Arc fees are quoted directly in USDC.

northline-chainkit.northline-c86.workers.dev Crypto & Payments checked 2026-10-30
0.001 USDC per call per call

Base ETH Balance Oracle x402 REST

ETH balance of a Base mainnet address, incl. balance_usd.

x402-data-api.sigrunner.workers.dev Geo & Maps checked 2026-10-29
0.001 USDC per call per call

Base ERC-20 Balance Oracle x402 REST

ERC-20 token balance of a Base mainnet address, incl. symbol, decimals, balance_formatted.

x402-data-api.sigrunner.workers.dev Data & Finance checked 2026-10-29
0.001 USDC per call per call

Base Wallet Bundle x402 REST

Wallet bundle: ETH balance + balance_usd + tx count + contract-code check for a Base mainnet address, in one call.

x402-data-api.sigrunner.workers.dev Crypto & Payments checked 2026-10-29
0.003 USDC per call per call

Penger VerifyOracle x402 REST

Curated feed of active, verified cash/crypto coding and agent bounties across GitHub, Frantic, and SwarmMemo.

penger-oracle.run402.com Dev & Code checked 2026-10-29
0 USDC per call per call

VerifyOracle x402 REST

Curated feed of active, verified cash/crypto coding and agent bounties across GitHub, Frantic, and SwarmMemo.

verify-oracle.run402.com Dev & Code checked 2026-10-29
0 USDC per call per call

VoipStore x402 REST

Poll one order status; when the SMS has arrived the response carries sms_code and sms_text. Poll until status is received/completed/expired. Automated clients accept the Agent Access Addendum: https://voipstore.xyz/terms...

api.voipstore.xyz Comms & Messaging checked 2026-10-30
0.001 USDC per call per call

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