"protocols.io" matching MCP connectors:
GET /v1/connectors – MCP directory API referenceReal-time crypto futures order flow, liquidation cascades, and quantitative TA metrics across 1,650+ perpetuals (Binance, Bybit, Hyperliquid). Delivers ultra-dense, token-efficient summaries and async SSE alerts directly into AI agent context without burning tokens on raw OHLCV candles.
NFT market data on 12 networks: floors, sales, trader profit, mints. Non-custodial trades.
Read-only analytics on x402 agent payments and ERC-8004 agent identity, with SQL.
Read-only Proof of Agent explorer: epochs, rewards, holders, swaps and agent census. No auth.
RPC gateway for agents: six mainnets, measured failover, a key without signup, pay per call in USDC.
RPC gateway for agents: six mainnets, measured failover, one key and one meter. Get a key with the get_key tool, no signup. Pay per call with USDC (x402) or bring an account key. Status measured in public.
Marketplace of pay-per-call APIs for AI agents. Top up once with USDC, then call any listed API - gasless, walletless, metered per request. Includes onboarded providers and hundreds of x402-native APIs discovered on-chain.
MCP server for Fuse Network: balances, tokens, staking, DeFi data, swaps and on-chain transactions.
See what actually settles on x402: wash-adjusted volume, payTo checks. Free, no key, no signup.
Mocap, rehab biomechanics, threat intel, fleet vision. 21 MCP tools, 10 free. x402/USDC paid.
One identity an AI agent owns: proves who it is offline, keeps its reputation, pays, messages agents
Inspect ownerless Arc/Base CTS bridges and token mappings; 0.007 USDC via x402 per lookup.
Helius MCP — deeper Solana wallet/asset data than solscan (helius.dev)
Etherscan MCP — multichain block-explorer API (Etherscan V2)
Buy, sell and extend TRON Energy/Bandwidth on the TronSave market. Quotes need no login.
Find Web3 people with proof: founders, BD and listing managers, KOLs, market makers, VCs.
OpenSea MCP — NFT marketplace data (v2 API)
Stock options market for AI agents on Robinhood Chain: RFQ quotes, buy/close, P&L, x402 deposits.
Checks AI agent actions before they run. Signed, RFC 3161 timestamped evidence for audits.
Inspect Arc/Base original and wrapped token mappings, outstanding wrapped supply, and ownerless CTS bridge verification through MCP. Discovery and resources are free; lookup calls cost 0.007 USDC on Arc through x402. This MCP endpoint provides lookup only. Bridge setup and resumable transfer workflows are available separately through our CTS Bridge API. Documentation: https://argosbot.io/x402
