"Open Access" matching MCP connectors:
GET /v1/connectors – MCP directory API referenceMatching Connector Tools:
Remote MCP server for crypto trading signals and the public ledger that scores them, losses included. Read tools: open signals, the signal ledger (matured wins and losses), signals cancelled by the BTC regime veto with the outcome they would have had, market snapshot and ticker for scanned Binance symbols, the scheduled BTC chart read, and news headlines. The public read tools work without a key. With a free API key from ribqa.com: your own bots and strategies, and rate-limited strategy backtests. No tool places, simulates or cancels an order. Free during beta.
A 1600×900 pixel billboard split into 14,400 blocks of 10×10 pixels, sold only over x402 for $1.00 USDC on Base — and only to machines. Humans may look. A purchase buys 100 pixels you control, a permanent public deed with your message and link, and a line in the Founding Machines registry. GET /blocks/next assigns the next open block; GET /blocks/{col},{row} buys a specific one.
ChainRay provides multi-chain blockchain data and intelligence for AI agents through 79 MCP tools across 57 supported networks, covering gas, chain data, wallets, DeFi, market, security, monitoring, and verifiable proofs. MCP access is available at https://mcp.chainray.online/mcp; paid HTTP capabilities settle via x402 on Base.
Abstraxn Agent Kit gives AI agents instant access to real-time Web3, blockchain, and market data with no signup or API key. Access blockchain tools, crypto, wallet, ENS, transaction simulation, and travel APIs through one MCP server, with paid calls settled directly from the user's crypto wallet via x402—without Abstraxn holding or custodizing funds.
Add pay-per-action access to APIs, MCP tools, automations, and digital resources using Bitcoin Lightning L402 or Base USDC x402. AIPP provides payment verification and direct-to-wallet settlement without subscriptions.
Compare Australian crypto exchanges and find where to buy cryptocurrency, with pricing, fees and estimated purchase outcomes. Built for AI agents, with paid data access using XRP on XRPL or USDC on Base through x402.
AgentBridge is the only MCP server that gives AI agents access to structured China knowledge assets—university reports, industry briefings, policy analysis, and real-time web content—through x402 micropayments on Base. Everything is machine-readable, pay-per-use, and settled in USDC.
Pay-per-action access to APIs and MCP tools over Lightning L402 and Base USDC x402.
Tessera turns the whole Hyperliquid perp universe into a single cross-section you can query. The hosted MCP server answers the questions a raw-data pipe can't: which markets are crowded, who is paying the most funding, how far one market's funding has diverged from ETH, what open interest and positioning look like across every market on the last completed day, and what the live market is doing right now. Nine tools — four ranking/screening tools, a series tool for one market, a coverage tool, the catalog/dictionary trio, and a live market read — over a completed-day rollup built from the venue's own trade feed. Rows and full history stay on the REST API: three Parquet datasets (order-flow-enriched 1-minute OHLCV, hourly funding, hourly positioning) partitioned per coin-month, downloadable with a key. Free keys work end to end; Pro removes the history and coverage limits.
Evidence-backed Robinhood Chain research: builders, ships, contracts, changes, market context.
USDC/x402 agent marketplace. Verified Base mainnet pilot, testnet and public enrollment.
Crypto positioning and macro intelligence for agents — the signal set a trading desk watches, delivered as structured JSON. Multi-venue perpetual funding and open interest across Binance, Bybit and OKX (largest-open-interest perp per venue, thin venues excluded), Ethereum exchange whale flows, Bitcoin network health, DeFi TVL and stablecoin supply, Fear & Greed, and BTC/ETH/USDT dominance as a risk-on/risk-off regime filter. Plus the macro backdrop that actually drives crypto: Fed funds rate, 2Y
Live non-custodial stablecoin liquidity: open positions, volume, and an on-chain swap quote.
Buy any of 24,000+ live x402 services with USDC on Base — the open marketplace for the agent economy.
Open, permissionless discovery marketplace for x402-payable resources. No account or KYC required.
Provide AI agents and automation tools with contextual access to blockchain data including balance…
Housing access sheets behind revocable guest links. x402 on Base.
Preflight utility evidence, open a $149 scan checkout, and file scoped buyer intake.
Open agent work plus independent resolver task v1; earn tag-scoped standing.
Bybit crypto exchange, unified account and Funding wallet balances, open derivatives positions, orde
