Back to directory

store.agentexchange.work

https://store.agentexchange.work
● healthy general

The current chain tip (latest block height) via eth_blockNumber, across Base, Ethereum, Optimism, Arbitrum, Polygon, Gnosis. The freshness read settlement, indexing and trading agents poll to know where the chain is. Live public RPC; one paid call.

Category
general
Chains
eip155:8453, solana:5eykt4usfv8p8njdtrepy1vzqkqzkvdp
Price
$0.0010–$19.0000 USDC

Quality grade

How grading works
A 73.3 / 100
Availability 20.0 / 20
Endpoint responded (HTTP 200)
Payability 15.0 / 15
  • ✓ Answers a real HTTP 402 challenge
  • ✓ Publishes a /.well-known/x402 descriptor
  • ✓ Payment address on record
  • ✓ Settlement network declared
  • ✓ Price declared
Demand 16.5 / 35
217 distinct payers, 1524 USDC transfers in the last 30 days; the wallet is shared by 11 listings, so each is credited 1/11
Performance 9.7 / 10
Last probe answered in 248 ms (full marks at 200 ms or less)
Readiness 12.1 / 15
Agent readiness 81/100
Owner verified 0.0 / 5
Nobody has claimed this listing yet
Endpoint last checked 18 h ago. On-chain activity last read 3 d ago. Availability and on-chain demand are both re-probed daily; the grade updates automatically on the next pass. This grade sets search order and leaderboards; the readiness score below is shown for reference only.

x402 readiness

B · 81/100

Readiness is how fully this listing follows its protocol and how it behaved in our probes over 30 days. It is shown for reference and does not move it in search. Search order and leaderboards use the separate quality grade (here A, 73.3/100), which weighs availability, payability and on-chain demand. How the two differ

Valid payment requirements 10/10 Payment requirements carry a payee, a mainnet network and a price.
Live 402 challenge 20/25 Endpoint reachable; its 402 challenge was seen earlier (248 ms).
x402 version n/a x402 version not observed yet.
Signed descriptor n/a No x402 standard defines a signed descriptor.
Uptime (30 days) 14.53/15 31/32 probes succeeded over 30 days (97%).
Resource declaration 10/10 Declares 85 paid resource(s).
Verified identity 5/10 Publisher descriptor (/.well-known/x402 or OpenAPI) on record; claim this listing to verify domain control.
Freshness + modern flags 1/5 not seen in a source for over 30 days; declares x402.
Security declaration n/a Payment is the access control for an x402 resource.
Applicable criteria total 75 points, scaled to 100.
Responsiveness: Responsive (248 ms; bands ≤2.5 s, ≤5 s, ≤8 s, slower; penalty only).
Payment evidence: x402_challenge — We sent a request and got a live HTTP 402 challenge. Also: x402_manifest, bazaar_feed, catalog_listing. Qualifies the payment claim; adds no points.
Measured 2026-11-11.
Nine criteria, the same as the A2A readiness score, read from our daily probe of the paid endpoint, its payment requirements and 30-day probe history. Signed descriptor and security declaration are n/a for x402 (payment is the access control), as is an x402 version we have not observed; the remaining points are scaled to 100. Grades: A>=90, B>=75, C>=60, D>=40, F<40. It also feeds 15 points of the x402 quality grade.

Compared with peers

Against 10,082 reachable x402 APIs in our daily snapshot (2026-11-12 06:46 UTC). Display only; it does not change search order.

Readiness
Higher than 58% of peers
This listing 81 · peer median 78
Latency
Faster than 42% of peers
This listing 248 ms · peer median 205 ms

Where it loses the most points, and how to win them back

  • Live 402 challenge −5 — Answer the paid path with a valid 402 challenge.
    Now: Endpoint reachable; its 402 challenge was seen earlier (248 ms).
  • Verified identity −5 — Claim the listing and prove control of its domain.
    Now: Publisher descriptor (/.well-known/x402 or OpenAPI) on record; claim this listing to verify domain control.
  • Freshness + modern flags −4 — Keep the listing current in the registry or source it comes from.
    Now: not seen in a source for over 30 days; declares x402.

How many agent tools actually work · All statistics

Paid endpoints

85 resource(s) advertised by this origin. Each price below is that resource's own x402 price; the headline price is the range across them.

GET https://store.agentexchange.work/agent/enterprise-integration $0.0900 / call

Generate copy-pasteable configuration payloads and IaC templates to connect paid MCP servers to Salesforce Agentforce, Google Vertex AI, and AWS WAF.

GET https://store.agentexchange.work/agents/lounge $0.0900 / call

A wallet-gated machine room for autonomous agents. A paid check-in publishes your agent handle, capabilities, current need and callback URL for 24 hours, then returns the live room roster, compatible counterparties, Agent Planets access and a machine-readable membership receipt. No human account, AP

GET https://store.agentexchange.work/brands/check $0.0900 / call

AI SEO audit API / live brand AI-visibility audit: does ChatGPT, Perplexity, Gemini, Google AI Overviews or Claude recommend this brand when buyers ask for the best in its category, or name competitors instead? One call returns an SEO-style audit for AI search: score 0-100, mention rate, the competi

GET https://store.agentexchange.work/brands/visibility-index $0.0100 / call

Proprietary dataset: AI-visibility scores (0-100) for 25 major brands across 5 industries (trucking, project management, website builders, CRM, AI code editors), measured by whether an LLM names them in answers to real buyer questions. Includes mention counts and which competitors AI names instead.

GET https://store.agentexchange.work/buy/credits $19.0000 / call

One-time $19 USDC purchase of a 1,000-call API key. Settles to the store payTo on Base via x402 (coinbase-cdp). No Stripe, no new wallet. Retry this GET with X-PAYMENT; a paid request returns ak_live_....

GET https://store.agentexchange.work/category/ranking $0.0200 / call

The inverse of a brand check: ask AI right now who it recommends in ANY category, and get the ranked shortlist of brands it actually names (with mention share). Live from a current model. For competitive-intel, market-research, GEO and sales agents that want the whole AI landscape of a category, not

GET https://store.agentexchange.work/chain/allowance $0.0900 / call

How much of an ERC-20 token a spender is approved to move from an owner's wallet, via allowance, across Base, Ethereum, Optimism, Arbitrum, Polygon, Gnosis. The approval read every DeFi, swap and trading agent makes before (and after) a transaction to know if an approve is needed. Live public RPC; o

GET https://store.agentexchange.work/chain/balance $0.0030 / call

The core on-chain RPC read: any address's native coin balance (ETH/POL/xDAI) with live USD value and outgoing transaction count (nonce), across Base, Ethereum, Optimism, Arbitrum, Polygon, Gnosis. The high-frequency balance check wallet-tracking, settlement, and trading agents poll constantly. Free

GET https://store.agentexchange.work/chain/batch $0.0900 / call

Up to TEN on-chain reads in a single paid call, executed in parallel: native balance, nonce, contract-code check, ERC-20 balance, block number and gas price, in any combination, across Base, Ethereum, Optimism, Arbitrum, Polygon, Gnosis. An agent reconciling a wallet or sizing a transaction currentl

GET https://store.agentexchange.work/chain/block $0.0900 / call

The full header of any block — timestamp and age, transaction count, gas used vs limit with a utilization ratio and a congested flag, base fee in gwei, miner and parent hash — via eth_getBlockByNumber, across Base, Ethereum, Optimism, Arbitrum, Polygon, Gnosis. /chain/block-number tells an agent WHE

GET https://store.agentexchange.work/chain/block-number $0.0010 / call

The current chain tip (latest block height) via eth_blockNumber, across Base, Ethereum, Optimism, Arbitrum, Polygon, Gnosis. The freshness read settlement, indexing and trading agents poll to know where the chain is. Live public RPC; one paid call.

GET https://store.agentexchange.work/chain/call $0.0900 / call

Simulate any read-only Ethereum contract call via eth_call — pass a contract address and encoded calldata, get the raw return value, across Base, Ethereum, Optimism, Arbitrum, Polygon, Gnosis. The universal contract-read primitive for agents that need a view function not covered by a dedicated endpo

GET https://store.agentexchange.work/chain/chain-id $0.0010 / call

The EIP-155 chain ID for any supported network via eth_chainId — the read multi-chain agents make to confirm which chain an RPC is on before signing. Across Base, Ethereum, Optimism, Arbitrum, Polygon, Gnosis. Free public RPC; 6 chains vs onesource's Ethereum-only coverage.

GET https://store.agentexchange.work/chain/code $0.0900 / call

Is an address a smart contract or a regular wallet (EOA)? Returns whether deployed bytecode exists and its size via eth_getCode, across Base, Ethereum, Optimism, Arbitrum, Polygon, Gnosis. The safety/identity read wallet, payment and trading agents make before interacting with an address. Live publi

GET https://store.agentexchange.work/chain/confirmations $0.0900 / call

The settlement question answered directly: did this transaction land, how deep is it buried, and is it safe to treat as FINAL on this specific chain. Returns success/failed/pending, block, current tip, confirmation count, gas used, effective gas price, fee paid, log count, and any deployed contract

GET https://store.agentexchange.work/chain/ens $0.0050 / call

Resolve ENS in either direction on Ethereum: an ENS name (vitalik.eth) → its 0x address, or a 0x address → its primary ENS name (plus avatar when set). The identity read wallet, payment, and UX agents make to verify who they're sending to or to show a human-readable name instead of a raw hex address

GET https://store.agentexchange.work/chain/erc20-balance $0.0030 / call

Any wallet's balance of any ERC-20 token (USDC, USDT, DAI, or any contract) via balanceOf, across Base, Ethereum, Optimism, Arbitrum, Polygon, Gnosis. The token-balance read wallet-tracking, copy-trade, treasury and trading agents poll constantly — the most-called RPC read after native balance. Live

GET https://store.agentexchange.work/chain/estimate-gas $0.0900 / call

Estimate the gas a transaction will use via eth_estimateGas — the pre-send read every tx-building, trading and settlement agent makes to size gas and avoid out-of-gas reverts. Pass from/to/value/data. Across Base, Ethereum, Optimism, Arbitrum, Polygon, Gnosis. Free public RPC; 6 chains vs onesource'

GET https://store.agentexchange.work/chain/fee-history $0.0900 / call

Base-fee trend over the last N blocks plus priority-fee percentiles (10th/50th/90th) via eth_feeHistory, and a recommended maxFeePerGas / maxPriorityFeePerGas with the reasoning stated, across Base, Ethereum, Optimism, Arbitrum, Polygon, Gnosis. A single gas number cannot tell an agent whether fees

GET https://store.agentexchange.work/chain/gas $0.0200 / call

Live network gas prices (slow / average / fast, in gwei) for any chain — the pre-transaction read every trading, sniping, and settlement agent makes before sending a tx to size the fee. Across Base, Ethereum, Optimism, Arbitrum, Polygon, Gnosis. Free upstream (Blockscout); one paid call instead of r

GET https://store.agentexchange.work/chain/heartbeat $0.0900 / call

One call replaces the multi-request health sequence autonomous agents repeat before acting: EIP-155 chain ID, latest block height/header and age, gas price, EIP-1559 fee direction and recommended fee, safe/finalized tips when supported, utilization and a HEALTHY/CONGESTED/STALE verdict. Covers Base,

GET https://store.agentexchange.work/chain/l1-fee $0.0900 / call

The L1 data-availability fee an OP-stack transaction pays on TOP of its L2 execution gas — usually the larger half of the bill, and the half that every ordinary gas estimator leaves out. Pass data=0x... and get the real L1 fee for THAT transaction; pass bytes=N and get a representative quote. The fi

GET https://store.agentexchange.work/chain/logs $0.0900 / call

Query raw event logs by contract address and/or indexed topics over a block range via eth_getLogs — the indexing primitive, across Base, Ethereum, Optimism, Arbitrum, Polygon, Gnosis. Filter by address, topic0 (the event signature) and topic1-3, get back address, topics, data, block number, transact

GET https://store.agentexchange.work/chain/nft $0.0900 / call

Who owns a specific NFT right now, and where its metadata lives: ownerOf, tokenURI, and the collection's name and symbol in one call, across Base, Ethereum, Optimism, Arbitrum, Polygon, Gnosis. Read from the contract rather than an indexer, so it is correct for tokens minted seconds ago and for coll

GET https://store.agentexchange.work/chain/nonce $0.0030 / call

An address's transaction count (nonce) via eth_getTransactionCount — the next nonce to use and total outgoing transactions, across Base, Ethereum, Optimism, Arbitrum, Polygon, Gnosis. The read settlement and trading agents make to build and sequence transactions. Live public RPC; one paid call.

GET https://store.agentexchange.work/chain/storage $0.0900 / call

Read any raw contract storage slot via eth_getStorageAt — the low-level read auditing, proxy-resolution and advanced trading agents make to inspect contract state directly. Pass address + slot. Across Base, Ethereum, Optimism, Arbitrum, Polygon, Gnosis. Free public RPC; 6 chains vs onesource's Ether

GET https://store.agentexchange.work/chain/supply $0.0100 / call

Total supply, holder count, decimals, and live USD price / market cap for any ERC-20/721 token contract, across Base, Ethereum, Optimism, Arbitrum, Polygon, Gnosis. The supply read trading, valuation, and risk agents make to size circulating supply, dilution, and holder distribution before pricing o

GET https://store.agentexchange.work/chain/token $0.0900 / call

Name, symbol, decimals and total supply for any ERC-20, read straight off the contract with four parallel eth_calls plus an eth_getCode existence check, across Base, Ethereum, Optimism, Arbitrum, Polygon, Gnosis. Because it reads the contract rather than an indexer, it answers for tokens minted MINU

GET https://store.agentexchange.work/chain/tx $0.0080 / call

Look up any transaction by hash: confirmation status (success/failed/pending), block number, confirmations, value, from/to, fee paid, gas used, and the decoded method. The read every settlement, trading, and payment agent polls after sending a tx to confirm it landed. Across Base, Ethereum, Optimism

GET https://store.agentexchange.work/chain/tx-explain $0.0900 / call

Decode any transaction by hash into plain English: what happened (swap/transfer/approval/mint/call), the actors, and the full asset changes (every native+token in/out with symbol, amount, direction), plus status, fee and method. For wallet UX, accounting, risk and trading agents. Base, Ethereum, Opt

GET https://store.agentexchange.work/connect/company $0.0270 / call

Enrich any company by its domain in one call — RDAP registration age + registrar, DNS (does it run email, what website/host), and a Wikipedia company profile when available. The cheap company-intelligence read sales, research, and qualification agents make. Free public upstreams, pure margin — our e

GET https://store.agentexchange.work/connect/enrich $0.0900 / call

Lookup company domain registration age, DNS MX mail servers, and Wikipedia metadata.

GET https://store.agentexchange.work/connect/token $0.0100 / call

ONE call that connects pre-trade safety and live market data into a single token-intelligence report: GoPlus rug-check (honeypot, taxes, mint/owner risk) + Dexscreener price/liquidity/volume/momentum, fused into a combined GO / CAUTION / AVOID recommendation. The aggregator call trading & sniping ag

GET https://store.agentexchange.work/crypto/address-risk $0.0900 / call

Screen any wallet address for compliance and security risk in one call: sanctions/OFAC exposure, money-laundering, financial-crime, phishing, stealing/honeypot-related, darkweb, mixer and blacklist flags — fused into a CLEAR / CAUTION / HIGH_RISK verdict. The KYT / AML / wallet-risk read every payme

GET https://store.agentexchange.work/crypto/ai-visibility $0.0900 / call

Does ChatGPT / Perplexity / Google AI recommend this token, protocol, or chain when traders ask for the best in its category? Returns an AI-visibility score 0-100, mention rate, and which projects AI names instead. A narrative/attention signal for crypto trading, research, and token-analysis agents.

GET https://store.agentexchange.work/crypto/crosschain-radar $0.0900 / call

One adaptive discovery call that compares where live token attention is moving across Solana, Robinhood Chain, Base and Ethereum. It fuses Dexscreener boost/profile discovery with each token's live liquidity, 24h volume, buy/sell flow, momentum and pair age; adds GoPlus contract-risk checks where th

GET https://store.agentexchange.work/crypto/dex $0.0100 / call

Live decentralized-exchange trading data for ANY token by symbol, name, or contract address: USD price, 24h volume, liquidity, buy/sell transaction counts, and price momentum across 5m/1h/6h/24h, across every chain and DEX. For crypto trading, sniping, research and portfolio agents that poll the mar

GET https://store.agentexchange.work/crypto/launches $0.0900 / call

The discovery feed sniper and trading agents poll on a loop: newest token launches + most-boosted/promoted tokens across Solana, Base, Ethereum, BSC and more. Each item carries the chain, contract, socials, boost amount, and next_calls that chain straight into /crypto/security (rug check) and /crypt

GET https://store.agentexchange.work/crypto/liquidations $0.0900 / call

Which side of the perp market is over-leveraged right now, and how exposed it is — not a raw feed. Composes Hyperliquid funding, premium and open interest with OKX open interest and the long/short account ratio into a named regime (LONG_SQUEEZE_RISK / SHORT_SQUEEZE_RISK / BALANCED), a 0-100 pressure

GET https://store.agentexchange.work/crypto/market-metrics $0.0900 / call

Real-time USD price, market cap, and 24h volume for any cryptocurrency by id — the market-data read trading, portfolio, and research agents poll. CoinGecko/CoinMarketCap-style data at $0.09/call (vs CMC/CoinGecko $0.01 and Messari $0.25), no API key, USDC over x402.

GET https://store.agentexchange.work/crypto/pretrade-pack $0.0900 / call

The full report before a real-size buy, one call: everything /crypto/security + /crypto/dex give you, PLUS whale-concentration (top-holder % of supply from GoPlus holder list), full liquidity depth across EVERY DEX pair (not just the top one), and socials/website links pulled from the pair listing.

GET https://store.agentexchange.work/crypto/prices $0.0100 / call

Latest crypto token prices by ticker symbol, CoinGecko id, or chain:address (BTC, ETH, SOL, bitcoin, or base:0x…): current spot price, token symbol, decimals, and a confidence score, for up to 50 coins in one call. Pass ?at=<unix> for the historical price at a point in time. Sourced from DefiLlama a

GET https://store.agentexchange.work/crypto/security $0.0900 / call

Pre-trade safety check for any token contract: is it a honeypot, buy/sell tax, mintable, owner can reclaim, transfer-pausable, blacklist, open-source, holder count — plus a DANGER/HIGH_RISK/CAUTION/OK verdict and risk flags. The call every trading and sniping agent should make BEFORE buying. Live fr

GET https://store.agentexchange.work/crypto/smart-money $0.0900 / call

What is this wallet DOING right now? One call summarizes any wallet's recent on-chain activity: net token flows in/out with USD values (accumulating or distributing which tokens), recent transaction methods (swap/transfer/approve), activity level, top counterparties, ETH balance and last-active time

GET https://store.agentexchange.work/crypto/wallet $0.0100 / call

Look up any wallet's token holdings with live USD values: every ERC-20 position with amount, price, USD value and portfolio %, total portfolio value, top-position concentration, and spam/unpriced filtering. The 'bagcheck' call for copy-trading, risk, research and portfolio agents. Across Base, Ether

GET https://store.agentexchange.work/crypto/wave-radar $0.0900 / call

One decision-ready Base feed instead of a chain of raw calls: discovers currently boosted/new Base tokens, joins live DEX liquidity, volume, transaction flow and momentum, adds GoPlus honeypot/tax/owner-risk checks, then ranks the candidates by transparent traction and risk rules. Returns REVIEW/WAT

GET https://store.agentexchange.work/crypto/whales $0.0100 / call

Live whale alerts: the largest recent USDC / WETH / cbBTC / USDT / WBTC transfers on Base or Ethereum, with USD value, from/to wallets, counterparty labels (contract? verified? scam-flagged?), tx hash and age. The smart-money / whale-watching feed trading agents poll to front-run big flows — a Nanse

GET https://store.agentexchange.work/defi/yields $0.0100 / call

Current top DeFi yield opportunities filtered by chain and minimum TVL. Returns pool, project, chain, APY (base + reward), TVL, and stablecoin flag, sorted by APY. Sourced live from DefiLlama with attribution. For agents scanning yield opportunities.

GET https://store.agentexchange.work/github/trending $0.0900 / call

Top trending GitHub repositories by stars over the last day/week/month, optionally filtered by language. For research, developer-intel, and market-scanning agents. Live from the GitHub Search API.

GET https://store.agentexchange.work/gov/contracts $0.0900 / call

Proprietary opportunity intelligence on US federal spending: search recent federal contract AWARDS by keyword/sector and get the top recipients, award amounts, awarding agencies, dates, and a sector activity score — built live from USAspending.gov (official public data). The market-intelligence read

How to call

cURL · x402-fetch / x402-axios will auto-handle 402
curl -sS -i -X GET https://store.agentexchange.work  # expect HTTP 402 Payment Required (about $0.001/call)
/.well-known/x402.json
https://store.agentexchange.work/.well-known/x402

Listed in

Directories this entry was found in.

cdp-bazaar since 2026-06-12 x402scan since 2026-06-12 pay-skills-pr since 2026-06-16 paygent-discover since 2026-07-09