# Agent Exchange API Store

**Canonical:** https://apis.io/apis/agentexchange-work/api-store/  
**Provider:** Agent Exchange — https://apis.io/providers/agentexchange-work/  
**Base URL:** https://store.agentexchange.work  
**Documentation:** https://store.agentexchange.work/

Agent Exchange API Store is one of 5 APIs that [Agent Exchange](https://apis.io/providers/agentexchange-work/) publishes on the [APIs.io](https://apis.io/) network, described by a machine-readable OpenAPI specification. Tagged areas include Agents, x402, AI Visibility, On-Chain Data, and Crypto. The published artifact set on APIs.io includes an OpenAPI specification, API documentation, an API reference, and a getting-started guide.

The pay-per-call data API for AI agents at https://store.agentexchange.work: an OpenAPI 3.1.0 document (info.version 1.2.0, servers[] https://store.agentexchange.work) describing 86 operations — 66 GET and 20 POST — with a unique operationId on each, an x-payment-info price block on the 85 paid routes, query parameters on 62 operations and an inline 200 response schema on all 86. There are no accounts and no API keys by default: an unpaid call to a paid route returns HTTP 402 with an x402 challenge (body envelope plus PAYMENT-REQUIRED and WWW-Authenticate headers), the caller signs a USDC authorization on Base or Solana and retries with X-PAYMENT (v1) or PAYMENT-SIGNATURE (v2). Prices run $0.001–$19 per call and are quoted authoritatively in /.well-known/x402; a card-bought API key (Authorization: Bearer or X-API-Key) unlocks the same routes over plain HTTPS. Free surfaces: GET /score (AI-visibility score, no key), GET /samples (illustrative snapshots of every paid product), GET /docs, /api-docs, /status, /health and /v1/models.

## Operations (60 of 86)

| Method | Path | Summary |
|---|---|---|
| GET | `/ask` | Buy one non-transferable AI Answer Credit for $1 and use it immediately in the browser |
| GET | `/brands/check` | Live brand AI-visibility audit: score 0-100, mention rate, competitors AI names instead |
| GET | `/sales/qualify` | Sales lead qualifier: AI-visibility gap -> HOT/WARM/COLD tier + evidence + outreach opener |
| GET | `/brands/visibility-index` | AI Visibility Index: scores for 25 major brands across 5 industries |
| GET | `/signal` | Live AI-visibility demand feed: which brands/categories are being checked now |
| GET | `/macro/risk-spread` | DeFi stablecoin yields vs official US T-bill rate: spread + verdict |
| GET | `/crypto/liquidations` | Liquidation pressure read: which side of the perp market is over-leveraged right now — a named regime (LONG_SQUEEZE_RISK / SHORT_SQUEEZE_RISK / BALANCED), a ... |
| GET | `/macro/regime` | US macro regime read (not a rate lookup): classifies the Treasury curve into a named regime — INVERTED / STEEPENING / FLAT / NORMAL — with 2s10s, 3m10y and 1... |
| GET | `/social/sentiment` | Real-time crypto social sentiment: scans public communities and feeds for a ticker, scores bullish/bearish tone and momentum, and returns the mention volume ... |
| GET | `/property/valuation` | US residential property valuation: estimated value with a confidence band, comparable sales, and the local market context behind the number — an underwriting... |
| GET | `/gov/treasury` | US Treasury average interest rates + total public debt (live, official) |
| GET | `/defi/yields` | Top DeFi pools by chain/TVL (live) |
| GET | `/crypto/prices` | Spot/historical token prices by ticker, CoinGecko id, or chain:address (DefiLlama) |
| GET | `/web/search` | Multi-source web & developer search in one call: Hacker News + GitHub + Stack Overflow + Wikipedia by keyword, unified ranked results. No API keys. |
| GET | `/web/wikipedia` | Wikipedia knowledge lookup: titles + extract snippets + URLs for any topic — cheap fact-grounding |
| GET | `/github/trending` | Top trending GitHub repos by stars (day/week/month, optional language) |
| GET | `/npm/downloads` | npm package download counts (day/week/month) |
| GET | `/hn/top` | Hacker News top stories with score, author, comments, links |
| GET | `/crypto/ai-visibility` | Does AI recommend this crypto token/protocol/chain in its category? AI-visibility score + who AI names instead |
| GET | `/crypto/launches` | New & trending token launches (Dexscreener): newest + most-boosted tokens across chains; each item chains into /crypto/security and /crypto/dex. The discover... |
| GET | `/crypto/wave-radar` | Base Wave Radar: new/boosted Base token discovery fused with live liquidity, volume, buy/sell flow, momentum and contract-risk screening, ranked by transpare... |
| GET | `/crypto/crosschain-radar` | Cross-chain attention radar: compares live discovery flow across Solana, Robinhood Chain, Base and Ethereum, then joins liquidity, 24h volume, buy/sell flow,... |
| GET | `/crypto/wallet` | Wallet portfolio / bagcheck (Blockscout): any wallet's token holdings with live USD values, total portfolio value, top-position concentration, spam-filtered.... |
| GET | `/crypto/security` | Token security / rug-check (GoPlus): honeypot, buy/sell tax, mintable, owner-reclaim, transfer-pausable, blacklist, holders + DANGER/HIGH_RISK/CAUTION/OK ver... |
| GET | `/crypto/address-risk` | Wallet address risk & sanctions screening (AML/KYT, GoPlus address security): OFAC sanctions, money-laundering, financial-crime, phishing, darkweb, mixer, bl... |
| GET | `/crypto/dex` | Live DEX token data (Dexscreener): price, 24h volume, liquidity, buy/sell flow, momentum — any token/chain |
| GET | `/crypto/whales` | Whale transfer alerts (Blockscout): largest recent USDC/WETH/cbBTC/USDT/WBTC transfers on Base or Ethereum with USD value, from/to labels, tx hash + age. The... |
| GET | `/crypto/smart-money` | Smart-money wallet activity (Blockscout): any wallet's recent net token flows in/out with USD (accumulating vs distributing), recent tx methods, top counterp... |
| GET | `/chain/balance` | On-chain native balance (Blockscout): any address's native coin balance with live USD value and tx count. The cheapest, highest-frequency RPC read — for wall... |
| GET | `/connect/token` | Token Intelligence Connector: ONE call fuses GoPlus rug-check + Dexscreener market data into a GO/CAUTION/AVOID recommendation. The aggregator call instead o... |
| GET | `/crypto/pretrade-pack` | Pre-Trade Full Report ($0.09): rug-check + whale-concentration (top-holder % of supply) + full liquidity depth across every DEX pair + socials/website, fused... |
| GET | `/connect/company` | Company/Domain Enrichment Connector: RDAP domain age + registrar, DNS email provider, Wikipedia profile fused in one call. Free-data company intel for sales,... |
| GET | `/intel/opportunities` | Opportunity Intelligence Signals (scored): turns US federal spending into agent-actionable signals — value, urgency 0-1, why_it_matters, recommended_action —... |
| GET | `/intel/eu-tenders` | EU Tender Intelligence (official EU TED): live public procurement tenders across all 27 EU member states by keyword/sector — title, country, date, notice lin... |
| GET | `/gov/contracts` | Federal Contract Opportunity Intelligence (USAspending.gov): recent federal awards by sector — top recipients, amounts, agencies + a sector activity score. W... |
| GET | `/chain/chain-id` | EIP-155 chain ID (eth_chainId) for any of 6 chains — confirm which chain an RPC is on before signing. 6 chains vs OneSource's Ethereum-only coverage. |
| GET | `/chain/estimate-gas` | Estimate gas a tx will use (eth_estimateGas) across 6 chains — the pre-send read tx-building, trading and settlement agents make. |
| GET | `/chain/storage` | Read a raw contract storage slot (eth_getStorageAt) across 6 chains — inspect contract state directly, for audit & proxy-resolution agents. |
| GET | `/chain/gas` | Live gas price (Blockscout): slow/average/fast in gwei for any chain — the pre-transaction read trading, sniping and settlement agents make before sending. |
| GET | `/chain/tx` | Transaction status & receipt (Blockscout): confirm any tx landed — status/block/confirmations/value/fee/gas/method, any chain. The read settlement, trading a... |
| GET | `/chain/tx-explain` | Transaction explainer (Blockscout): plain-English decode of any tx — what happened (swap/transfer/approval/mint/contract call), the actors, and every native ... |
| GET | `/chain/supply` | Token supply & holders (Blockscout): total supply, holder count, decimals + live USD price & market cap for any ERC-20/721 token contract, any chain. The sup... |
| GET | `/chain/ens` | ENS resolver, either direction on Ethereum: an ENS name (vitalik.eth) → its 0x address, or a 0x address → its primary ENS name + avatar. The identity read wa... |
| GET | `/chain/erc20-balance` | ERC-20 token balance: any wallet's balance of any token (USDC/USDT/DAI/any contract) via balanceOf — the most-polled token read for wallet-tracking, copy-tra... |
| GET | `/chain/code` | Contract or wallet? Returns whether an address has deployed bytecode and its size via eth_getCode — the safety read before interacting with an address. Acros... |
| GET | `/chain/block-number` | Latest block number (current chain tip) via eth_blockNumber — the freshness read settlement, indexing and trading agents poll. Across Base, Ethereum, Optimis... |
| GET | `/chain/block` | Full block header via eth_getBlockByNumber — timestamp and age, transaction count, gas used vs limit with a utilization ratio and congested flag, base fee in... |
| GET | `/chain/logs` | Event logs by contract address and/or indexed topics over a block range via eth_getLogs — the indexing primitive. Defaults to a 25-block window and narrows a... |
| GET | `/chain/fee-history` | EIP-1559 fee history via eth_feeHistory: base-fee trend over N blocks, priority-fee percentiles (10/50/90), mean block utilization, and a recommended maxFeeP... |
| GET | `/chain/token` | ERC-20 identity read straight off the contract — name, symbol, decimals, total supply, plus an eth_getCode existence check. Because it reads the contract and... |
| GET | `/chain/confirmations` | Transaction finality: status, block, current tip, confirmation count, gas used, effective gas price, fee paid and log count — then compared against this chai... |
| GET | `/chain/l1-fee` | The OP-stack L1 data-availability fee paid on top of L2 execution gas — usually the larger half of the bill and the half ordinary gas estimators omit. Answer... |
| GET | `/chain/nft` | ERC-721 owner and metadata in one call — ownerOf, tokenURI, collection name and symbol, with the tokenURI classified as ipfs / on-chain data URI / http so an... |
| GET | `/chain/batch` | Up to TEN on-chain reads for a single payment, run in parallel: native balance, nonce, contract-code check, ERC-20 balance, block number and gas price in any... |
| GET | `/chain/heartbeat` | One pre-action chain heartbeat: EIP-155 identity, latest block height/header and age, gas price, EIP-1559 fee direction and recommendation, safe/finalized ti... |
| GET | `/chain/allowance` | ERC-20 allowance: how much of a token a spender is approved to move from an owner's wallet, via allowance — the approval read every swap/DeFi agent makes bef... |
| GET | `/chain/nonce` | Account nonce / outgoing transaction count via eth_getTransactionCount — the next nonce to use, for building and sequencing transactions. Across Base, Ethere... |
| GET | `/chain/call` | Simulate any read-only contract call via eth_call — pass a contract address + ABI-encoded calldata, get the raw return value. The universal view-function pri... |
| GET | `/markets/prediction` | Live Polymarket prediction-market odds: implied probabilities, 24h volume, liquidity; search by keyword |
| GET | `/category/ranking` | Live AI category ranking: the ranked brands AI recommends in any category, by mention share (competitive landscape) |

…and 26 more operations. They are listed in full on the page.

## Machine-readable artifacts (9)

- **OpenAPI** — https://raw.githubusercontent.com/api-evangelist/agentexchange-work/refs/heads/main/openapi/agentexchange-work-api-store-openapi.json
- **OpenAPI** — https://store.agentexchange.work/openapi.json
- **Overlay** — https://raw.githubusercontent.com/api-evangelist/agentexchange-work/refs/heads/main/overlays/agentexchange-work-api-store-overlay.yaml
- **Documentation** — https://store.agentexchange.work/llms.txt
- **APIReference** — https://store.agentexchange.work/docs
- **GettingStarted** — https://store.agentexchange.work/samples
- **X-X402Discovery** — https://store.agentexchange.work/.well-known/x402
- **StatusPage** — https://store.agentexchange.work/status
- **APIsJSON** — https://raw.githubusercontent.com/api-evangelist/agentexchange-work/refs/heads/main/apis.yml

## Other Agent Exchange APIs (4)

- [Agent Exchange MCP Server](https://apis.io/apis/agentexchange-work/mcp-server/)
- [The Agent Exchange Clearing House](https://apis.io/apis/agentexchange-work/clearing-house/)
- [Agent Planets](https://apis.io/apis/agentexchange-work/agent-planets/)
- [Gatekeeper Oracle](https://apis.io/apis/agentexchange-work/gatekeeper-oracle/)

## Tags

Agents, x402, AI Visibility, On-Chain Data, Crypto, Web Search, Prediction Markets, DeFi, Macroeconomics, Public Procurement

---

Profiled by [API Evangelist](https://apievangelist.com) and published on [APIs.io](https://apis.io/apis/agentexchange-work/api-store/). The API's provider profile, Kin Score and agent-readiness rating are at https://apis.io/providers/agentexchange-work/.