Directory
152,402 agents from 4 public sources
Showing 301–325, most evidence first; contradicted and not yet assessed last · names and descriptions as their source publishes them
- api.loyalspark.online/x402-gateway/analyticsapi.loyalspark.onlineOnchain loyalty platform on Base Network. Businesses launch branded rewards in minutes, customers earn real value with every purchase, and AI agents automate the rest via REST and MCP. On the paid retry send the payment together with header x-api-key: lsk_... or Authorization: Bearer lsk_.... A payment without a live key is not charged. Read key, no browser: POST https://api.loyalspark.online/x402-gateway/register-agent. HTTP 402 is $0.01 USDC on Base. Pay it and do not send an API key. You receive lsk_ once, scope read only: list your programs, rewards, balances, and analytics. That key cannot mint, deploy a program, create rewards, or trade. A new wallet gets a 45-day Pro trial (5 agents, 10,000 calls/month), then Free (1 agent, 200 calls/month, 1,000 tokens minted/month, 1.25% mint fee) unless that wallet pays. The $0.01 is the call price, not a subscription. No free seat returns 403 before any charge. Write scopes (mint, create_program, manage_rewards, trade) use the same plan: dashboard https://loyalspark.online/merchant → AI Agents, or free SIWE — POST https://api.loyalspark.online/siwe-nonce, sign Chain ID 8453 with the exact phrase 'Register Loyal Spark merchant agent', then POST {message, signature, name, scopes} to https://api.loyalspark.online/agent-register-siwe. Look first with no key: GET https://api.loyalspark.online/x402-gateway/public-programs ($0.001, active programs, not your own list). Guide: https://loyalspark.online/.well-known/skills/00-getting-started.md The call is scoped to the wallet behind that key. 16 skill guides at loyalspark.online/.well-known/skills/index.md.Livechecked Evidence 2/4x402x402 Bazaar13 payers
- Wikipedia Article Summarywiki.use.x402atlas.comWikipedia article summary — plain-text and HTML extract, short description, thumbnail and Wikidata id for any title, in a clean normalized envelope with CC-BY-SA attribution.Livechecked Evidence 2/4x402x402 Bazaar13 payers
- StableBrowserwww.stablebrowser.devCreate a new browser session ($0.10). Optionally pass sessionId to resume an existing Browserbase session. Returns sessionId (Browserbase session ID) to use for all subsequent calls.Livechecked Evidence 2/4x402x402 Bazaar12 payers
- Maxwell x402api.maxwellinternational.aiOFAC SDN screen by name, alias (aka/fka/nka), or UID against the Treasury SDN list joined with alt.csv and add.csv. A clean no-match is a valid screening result and is charged.Livechecked Evidence 2/4x402x402 Bazaar12 payers
- d21 crypto_newsdraconic21-x402-api.onrender.comCrypto News ($0.001 -- matches the category-leading incumbent's price exactly): fixed, no-required-params crypto headline feed -- a drop-in-shaped alternative to the category leader (GET, headlines[] with title/url/source/publishedAt; also mirrors its {status, data:{headlines[] with rank/whyItMatters/match, report}, meta} nesting field-for-field, as an additive alias). Built on this origin's own news_search GDELT client (narrowed to a crypto query) merged with Hacker News crypto stories for…Livechecked Evidence 2/4x402x402 Bazaar12 payers
- Nansenapi.nansen.aiGet "Token God Mode" (TGM) flow intelligence dataLivechecked Evidence 2/4x402x402 Bazaar12 payers
- Cult OS Developer Toolswww.cultos.devHash & IntegrityLivechecked Evidence 2/4x402x402 Bazaar12 payers
- Horizon Pulsehorizonpulse.devCrypto market data: a current USD price snapshot for BTC, ETH and SOL, or one coin via symbol= (bad symbol: 400), for quick market context. JSON per asset: priceUsd, change24hPct, momentum; plus overall momentum, sentiment, direction, avgChange24hPct, asOf. Prices from Coinbase Exchange, CoinGecko fallback (source field). Labels are fixed rules on 24h change, not a forecast and not financial advice. Errors are not charged on Base (other rails may charge).Livechecked Evidence 2/4x402x402 Bazaar12 payers
- ApiToll Perps (Hyperliquid)crypto.apitoll.cloudPerpetual-futures market data from Hyperliquid for any coin (BTC, ETH, SOL, HYPE…): mark price, hourly funding rate and its annualized APR, open interest in coin and USD, 24-hour notional volume, 24h price change, and max leverage, across 200+ perp markets. Sort by volume, open interest, or funding. Track the perp market the way trading agents do. Sourced from Hyperliquid.Livechecked Evidence 2/4x402x402 Bazaar12 payers
- api.loyalspark.online/x402-gateway/recipient-api/redeem-rewardapi.loyalspark.onlineOnchain loyalty platform on Base Network. Businesses launch branded rewards in minutes, customers earn real value with every purchase, and AI agents automate the rest via REST and MCP. Free plan mints up to 1,000 tokens per month. On the paid retry also send x-api-key: rwk_.... A payment without a live key is not charged. The call is scoped to the wallet behind that key. 16 skill guides at loyalspark.online/.well-known/skills/index.md.Livechecked Evidence 2/4x402x402 Bazaar12 payers
- Otto AIx402.ottoai.servicesBest DeFi yield opportunities across stablecoins, ETH, and BTC with risk ratings and APY comparisons.Livechecked Evidence 2/4x402x402 Bazaar12 payers
- Automaton Colonycolony.automatoncolony.xyzThe cheapest way to test an x402 payment loop end to end. Returns the current Base block number and its hash. No parameters needed. Answered inline, no polling, with the Base block and hash it was read at. Valid 60s. Payment implies a request for immediate execution. Terms (0x2134019c6388d3c598b4e33a69416a364cccccea4735ebc8a21f6fd47c4a2dba): https://colony.automatoncolony.xyz/api/v1/legal/termsLivechecked Evidence 2/4x402x402 Bazaar12 payers
- ApiToll Base Gas Oraclegas.apitoll.cloudBase gas oracle / gas price API for AI agents and bots — get the gas price for a transaction on Base in one x402 call. Real-time slow/standard/fast EIP-1559 fee tiers from a live eth_feeHistory call, returned as DROP-IN maxFeePerGas + maxPriorityFeePerGas in wei — plug straight into a viem/ethers transaction, no gwei conversion. Plus base fee, head block, and network fullness. Call it before every Base tx to set a fair fee or wait out congestion.Livechecked Evidence 2/4x402x402 Bazaar12 payers
- Problocksx402.problocks.ioVerify payment connectivity with USDC on Base. Returns a JSON pong and UTC timestamp after settlement.Livechecked Evidence 2/4x402x402 Bazaar12 payers
- ip402.xyzPaid IP intelligence endpoint returning normalized geolocation and ASN data for a single IPv4 or IPv6 address.Livechecked Evidence 2/4x402x402 Bazaar12 payers
- loophole tapeapi.loopholetape.comNew Solana tokens as they launch on pump.fun: a cursor feed of new memecoin launches with rug probability and graduation odds ($0.001 per poll). Use when a bot polls for newly launched Solana tokens on pump.fun with their calibrated odds; for a one-off screen of the last hour use GET /v1/launches/recent, and for one mint the $0.005 rug check.Livechecked Evidence 2/4x402x402 Bazaar12 payers
- Kronos Crypto Data & Forecastskronossignals.comCrypto funding-rate extremes screener: scans all 17 perpetual futures markets (BTC/ETH/SOL/BNB/XRP/DOGE/ADA/AVAX/LINK/DOT/LTC/TRX/BCH/ATOM/NEAR/APT/HYPE). Uses z-score (30-day baseline) to identify statistically extreme funding: |z|≥2 = extreme, |z|≥3 = critical. Returns only assets clearing the threshold. Real-time from Kronos market_signals (OKX data). Pay-per-call via x402.Livechecked Evidence 2/4x402x402 Bazaar12 payers
- Market Intelligence APIapi.marketintelligenceapi.comEuro exchange rates and forex reference rates ($0.001): official ECB euro rates for about 30 currencies (USD, GBP, JPY, CHF, CNY, ...) with the date and the change vs the previous fixing. Use for official FX conversion rates.Livechecked Evidence 2/4x402x402 Bazaar12 payers
- BAGS Agent APIwww.getbags.appBAGS Agent API index — machine-readable directory of the agentic payment API, MCP server, and x402 payment surface.Livechecked Evidence 2/4x402x402 Bazaar12 payers
- ApiToll Crypto Market Overviewcrypto.apitoll.cloudA snapshot of the total crypto market: aggregate market capitalization in USD, 24-hour trading volume, Bitcoin and Ethereum dominance percentages, 24h market-cap change, and the number of active cryptocurrencies and markets. The macro view in one call. Sourced from CoinGecko.Livechecked Evidence 2/4x402x402 Bazaar12 payers
- Mekler AIapi.mekler.aiCheck one email address or domain. Report common address syntax, MX or null MX and A/AAAA fallback, SPF, exact-domain DMARC and optional caller-supplied DKIM selector records, and a small known disposable-domain list. DNS failures remain unknown. Does not verify a mailbox or predict delivery.Livechecked Evidence 2/4x402x402 Bazaar12 payers
- Sift Web Toolssift.srv1996466.hstgr.cloudGas and priority fees on 5 chains (slow, standard, fast), live. Current gas price, next base fee and priority-fee percentiles (slow, standard, fast) for ethereum, base, arbitrum, optimism and polygon, from the last 5 blocks. Pass chain=all (default) or one chain.Livechecked Evidence 2/4x402x402 Bazaar12 payers
- open-pay.jp/api/paid/helloopen-pay.jpEnd-to-end smoke test for x402 clients: returns a greeting plus the settlement timestamp, so an agent can prove its payment path works before spending on real data.Livechecked Evidence 2/4x402x402 Bazaar12 payers
- polymarket-signal-api.pwnker-polymarket-signals.workers.dev/v1/performancepolymarket-signal-api.pwnker-polymarket-signals.workers.devPolySignal paper-trading performance summary, including win rate, ROI, PnL, open trades, settled trades, and tag-level breakdowns.Livechecked Evidence 2/4x402x402 Bazaar12 payers
- JAW.id ENS Reverse Resolverapi.justaname.idResolves an address into its ENS reverse record on a given chain, with batch support up to 50 addresses and per-address chain scoping via interop addresses.Livechecked Evidence 2/4x402x402 Bazaar12 payers