Agent Exchange: prediction markets
https://store.agentexchange.work/markets/predictionLive prediction-market odds by topic (Polymarket and others). 0.01 USDC per call over x402 on Base.
Paid verification
How it worksNo sponsored paid call yet.
Pay this endpoint once from your own wallet (Base USDC, up to $1.00) and we call it and record what came back. Your wallet pays the listed recipient directly; Agent Tools never holds funds. Sponsored checks prove delivery; they do not count as demand.
Quality grade
How grading works- ✓ Answers a real HTTP 402 challenge
- ✓ Publishes a /.well-known/x402 descriptor
- ✓ Payment address on record
- ✓ Settlement network declared
- ✓ Price declared
x402 readiness
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 B+, 68.9/100), 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 (1144 ms). |
| x402 version | n/a | x402 version not observed yet. |
| Signed descriptor | n/a | No x402 standard defines a signed descriptor. |
| Uptime (30 days) | 15/15 | 24/24 probes succeeded over 30 days (100%). |
| Resource declaration | 10/10 | Declares 87 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 | 3/5 | seen within 30 days; declares x402. |
| Security declaration | n/a | Payment is the access control for an x402 resource. |
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 67% of peers
- This listing 84 · peer median 78
- Latency
- Faster than 5% of peers
- This listing 1,144 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 (1144 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 −2
— Keep the listing current in the registry or source it comes from.
Now: seen within 30 days; declares x402.
Paid endpoints
87 resource(s) advertised by this origin. Each price below is that resource's own x402 price; the headline price is the range across them.
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.
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
https://store.agentexchange.work/brands/check
$0.0900 / call
AI SEO audit API / live brand AI-visibility audit: does one model, llama-3.3-70b on Workers AI, name this brand when asked buyer questions about its category? One call returns a score 0-100, how many of those questions named the brand, and the other names the model gave (unverified). Use for GEO/AEO
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.
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_....
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
https://store.agentexchange.work/chain/allowance
$0.0050 / 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
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
https://store.agentexchange.work/chain/batch
$0.0050 / 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
https://store.agentexchange.work/chain/block
$0.0050 / 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
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. List your own x402 service on bazaar.agentexchange.
https://store.agentexchange.work/chain/call
$0.0050 / 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
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. List your own x402 servic
https://store.agentexchange.work/chain/code
$0.0050 / 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
https://store.agentexchange.work/chain/confirmations
$0.0050 / 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
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
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
https://store.agentexchange.work/chain/estimate-gas
$0.0050 / 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'
https://store.agentexchange.work/chain/fee-history
$0.0050 / 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
https://store.agentexchange.work/chain/gas
$0.0020 / 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
https://store.agentexchange.work/chain/heartbeat
$0.0050 / 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,
https://store.agentexchange.work/chain/l1-fee
$0.0050 / 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
https://store.agentexchange.work/chain/logs
$0.0050 / 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
https://store.agentexchange.work/chain/nft
$0.0050 / 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
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.
https://store.agentexchange.work/chain/storage
$0.0050 / 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
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
https://store.agentexchange.work/chain/token
$0.0050 / 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
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
https://store.agentexchange.work/chain/tx-explain
$0.0050 / 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
https://store.agentexchange.work/connect/company
$0.0100 / 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
https://store.agentexchange.work/connect/enrich
$0.0900 / call
Lookup company domain registration age, DNS MX mail servers, and Wikipedia metadata.
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
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
https://store.agentexchange.work/crypto/ai-visibility
$0.0900 / call
Does one model, llama-3.3-70b on Workers 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 the names the model gave (unverified, not checked against the category). A narrative/attention signal for crypt
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
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
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
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
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.
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.
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
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
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
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
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
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
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.
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.
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 -sS -i -X GET https://store.agentexchange.work/markets/prediction # expect HTTP 402 Payment Required (about 0.001 USDC/call)
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