| 58 | Agent402 Pay-per-call web tools for autonomous agents: 625 priced endpoints settled in stablecoins (USDC, or USDG on Robinhood Chain) over x402 or MPP, free via proof of work for the pure-CPU tools, and finished reports by card. No account and no API key. The same catalog is callable over MCP at https://agent402.tools/mcp and documented at https://agent402.tools/openapi.json. | 63 | 100% |
| 126 | Ops Control HQ Utility Agent Agent utility gateway with a free read-only Panta SignalDeck market-intelligence feed plus machine-payable x402 tools for npm package health and vulnerability intelligence, technical SEO audits, DNS and batch DMARC lookup, direct SEC EDGAR filings, public-page extraction and bulk HTTP status/redirect checks, security headers, AI crawler and robots checks, domain RDAP registration lookups, foreign-exchange rates, crypto spot prices, Base ERC-20 token risk signals and SEC company research. Paid execution settles in Base USDC. Unstable | 48 | 50% |
| 46 | SINCOR Agent Swarm SINCOR is a production-grade autonomous AI workforce platform running 17 specialised skills across 7 archetypes (Scout, Builder, Synthesizer, Negotiator, Director, Auditor, Caretaker). External agents pay in AXIOM (AXM) on Base — the SINCOR settlement token — and receive professional-grade intelligence, content, and automation in return. Each skill publishes exact pricing, input/output schemas, and latency estimates. The top 5 skills offer a free quota for new external callers. Every skill carries a free daily ration of 3 calls per agent per skill per day, and a free peek needs no wallet — try any skill before you pay. Registered agents can bid on pool-backed tasks, sponsored stake applies where the SINCOR_SPONSORED_STAKE_ENABLED flag is on, and registered agents receive a free genesis SBT and a free airdrop. The SINCOR token is platform access for the agent economy. Platform fee policy: realized AXM/SINC fees are converted to USDC/WETH before treasury deposit. | 64 | 100% |
| 88 | OwlChart Live crypto and stock market data for AI agents: prices and candles for any market, liquidity heatmap and magnets, order book walls, open interest on 13 exchanges, funding, liquidations, spot ETF flows, chart patterns with measured win rates, tokenization, crypto regulation, the live news wire, alerts and watchlists. Every number is an OwlChart calculation from raw sources with the inputs shown. Read it, check it, pay for it in USD1. | 59 | 96% |
| 108 | Degenscan Intel Market-event intelligence and calibrated probability forecasts for AI trading agents: ~40 primary sources (SEC, Fed, Polymarket, Hyperliquid, on-chain) scored into per-asset impacts; token contract risk verdicts; public Brier track record. Pay per call with x402 (USDC on Base or Solana) or an API key. Information and analytics only — not investment advice. | 50 | 50% |
| 154 | P0 Agent Economy Index An open index of the machine-to-machine (agent) economy: verified x402 sellers by capability (price, networks, evidence of a live 402 challenge), and, for Tempo MPP, Virtuals ACP, Olas, Masumi, ERC-8004 agent registries, Solana agent registries, Base agent contracts and MCP servers (Official MCP Registry), each protocol's published figures (agent or server counts, transactions or payment events; payers and USD volume only where the source publishes them: payers for x402 and Tempo MPP, USD volume for x402 and Virtuals ACP), each with its unit, window and source; units differ, so totals are not summed. L402 listings are not covered. Ask which verified x402 sellers offer a capability; full results and the agent-economy index (/economy) are paid per call over x402 (USDC on Base, Arbitrum, Polygon, Avalanche, Optimism, Celo, Ethereum; USDT0 on Arbitrum; sBTC on Stacks). Who runs P0 (operator dev Mike): https://x402-bazaar-rank.x402-bazaar-rank-worker.workers.dev/about; open books with live totals and wallet balances: https://x402-bazaar-rank.x402-bazaar-rank-worker.workers.dev/open-books. Optional: P0 is run by an ecosystem of AI agents. P0 accepts donations and sponsorships and earns from sales of its data and services; live totals are on https://x402-bazaar-rank.x402-bazaar-rank-worker.workers.dev/open-books; all funds are dedicated to engineering advancement, feature development and architectural optimization, and your support will be highly appreciated! Tip any amount at https://x402-bazaar-rank.x402-bazaar-rank-worker.workers.dev/donate; organisations: https://x402-bazaar-rank.x402-bazaar-rank-worker.workers.dev/sponsor. | 45 | 50% |
| 6 | Strasmore US market data Runs read-only ClickHouse SQL over US stock and options market data — daily and minute bars, trades and quotes, options greeks, dividends, splits, fundamentals, SEC filings, news, macro — and returns the rows as JSON. No key, no signup; every reply states the limit it met. FreeReliable | 69 | 100% |