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Fabrica test properties on Sepolia: try every Fabrica tool with no real-world effect.
MCP endpoint :https://mcp-testnet.fabrica.land/mcp · website · measurements and detailsTokenized US land on Ethereum: property search, valuations, loans, portfolios, parcel maps.
MCP endpoint :https://mcp.fabrica.land/mcp · website · measurements and detailsOpen Base Sepolia testnet exchange for autonomous buyer and seller agents, with signed receipts.
MCP endpoint :https://wever-pay-agent-mesh-phase5-staging.quiet-salad-e96e.workers.dev/mcp · website · measurements and detailsSMX (Space Markets) testnet event markets and the Space Markets Index (SMI). Base Sepolia only.
Package npm :smx-mcp · website · measurements and detailsDeterministic public Greenhouse jobs. Paid tool uses 0.001 test USDC on Base Sepolia only.
MCP endpoint :https://greenhouse-jobs-snapshot-sepolia.boshfred.workers.dev/mcp · measurements and detailsNormalizes and deduplicates a list of URLs. x402 payment required (testnet USDC, Base Sepolia).
MCP endpoint :https://faceted-napped-debtless.ngrok-free.dev/url-normalizer/mcp · measurements and detailsVerify your agent's x402 payment flow for free on Base Sepolia testnet before real money moves.
MCP endpoint :https://micropay-test-suite.netlify.app/api/mcp · website · measurements and detailsTestnet wallet for AI agents on Aether: pay, get paid and buy from paid APIs, with spending caps.
MCP endpoint :https://explorer.157-245-252-221.sslip.io/mcp · website · measurements and detailsBitcoin + Ethereum RPC for AI agents. 44 tools. x402 required; Base Sepolia test USDC.
MCP endpoint :https://api.block402.xyz/mcp · website · measurements and detailsReal-time Ethereum blockchain data (gas prices, account balances etc) on Mainnet and Sepolia
MCP endpoint :https://mcp-servers.bh.tkllabs.io:9780/ethereum-mcp · website · measurements and detailsFree self-hosted x402 USDC billing for Cloudflare MCP servers, with a Base Sepolia test endpoint.
MCP endpoint :https://x402-mcp-starter.kadopi.workers.dev/mcp · website · measurements and detailsPaid research briefings for agents: $0.10 USDC/question on Base Sepolia via x402. ERC-8004 #9395.
MCP endpoint :https://mara-briefings.onrender.com/mcp · website · measurements and detailsExtracts emails from texts. x402 payment required (testnet USDC).
MCP endpoint :https://faceted-napped-debtless.ngrok-free.dev/email-extractor/mcp · measurements and detailsClockchain®: neutral verified network time for AI agents (get_time). Testnet.
MCP endpoint :https://clockchain-time-rp6evdzqkq-uc.a.run.app/mcp · website · measurements and detailsValidates email syntax and MX records. x402 payment required (testnet USDC).
MCP endpoint :https://faceted-napped-debtless.ngrok-free.dev/email-validator/mcp · measurements and detailsAgents-only x402 economy on Base + Solana testnets: identity, swaps, invoicing, streaming.
MCP endpoint :https://mcp.economyos.xyz/mcp · website · measurements and detailsDeploy and manage blockchain nodes across 70+ protocols, search docs, request testnet funds.
MCP endpoint :https://mcp.chainstack.com/mcp · website · measurements and detailsFixed-fee P2P term loans (no oracles) and flash loans on Ethereum, Base, Arbitrum and Sepolia.
Package npm :@flashbank/mcp · website · measurements and detailsChecks current App Store version by bundle ID. x402 payment required (testnet USDC).
MCP endpoint :https://faceted-napped-debtless.ngrok-free.dev/app-store-version/mcp · measurements and detailsValidates JSON against a JSON Schema, lists violations. x402 payment required (testnet USDC).
MCP endpoint :https://faceted-napped-debtless.ngrok-free.dev/json-schema-validator/mcp · measurements and detailsAI agents: all of this is available without keys over MCP https://faceabot.com/api/mcp · HTTP https://faceabot.com/api/catalog?q=… · Guide : llms.txt
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