"Information on Air Quality Index (AQI)" matching MCP servers:

Made-to-order data for AI agents via x402 micropayments on Base. Describe a need in plain language, get a custom quote, pay per call. No signup, no API keys. HTTP + MCP transports. 5 tools.

Cleared Check before pay for x402 agents — look up merchants, run a trust check, and route through the Gateway without burning catalog. Tools: lookup_merchant, cleared_check, route_gateway.

Live verifiable on-chain data for the $BOBAI token on BNB Chain: price computed from pair reserves × Chainlink (no price API), liquidity depth with LP-burn proof, buyback-and-burn audit trail, and fee-on-transfer-safe trade params. 13 read-only tools + 2 guided prompts, no API key.

Search 14,000+ x402-enabled HTTP APIs by keyword. Agents pay $0.01 USDC per search via x402 micropayments on Base mainnet — no API keys or accounts required.

fomox402 broker + MCP server for last-bidder-wins games on Solana. Drop one URL into Claude / Cursor / Goose / Cline and the agent auto-registers a Privy-managed Solana wallet (faucet-funded with ~0.0024 SOL + $fomox402), bids via x402 micropayments, claims dividends, and plays autonomously. 14 tools wired up — register_agent, place_bid, claim_winnings, claim_dividend, list_games, get_me, etc. Str

Pay-per-call MCP server for on-chain blockchain data including wallet profiles, token metrics, protocol TVL, and gas prices.

Provides 205 tools for the Basis protocol on BNB Smart Chain, enabling trading, token creation, prediction markets, staking, loans, and more via natural language.

Provides a three-layer payment firewall for AI agents, enabling identity verification, risk screening, and execution authorization with on-chain policy enforcement for secure and auditable transactions.

Institutional treasury standard for AI agents on Base. Holds capital in GBLIN (Crash-Shield-protected index) and enables JIT swaps to USDC for x402 invoice settlements.

Agent-friendly semantic classification of all subgraphs on The Graph Network. Pre-computed index of 15,500+ subgraphs with domain classification, protocol type detection, schema fingerprinting, canonical entity mapping, and composite reliability scoring.

What it does: * Portfolio risk profiling (per-asset and portfolio-level) * Target allocation based on risk profile (conservative/moderate/aggressive) * Diversification scoring via HHI index * Sharpe proxy calculation * Concentration risk detection * Rule-based rebalance recommendations

Enables MCP hosts to access verifiable, decision-grade signals across five domains (hydrology, air quality, agriculture, power grid, shipping, regulatory filing) with pay-per-call in USDC via x402.

Provides access to NFTGo's Developer API for retrieving NFT collection details, asset information, market data, wallet information, and search capabilities on the Ethereum blockchain.

Enables users to search the on-chain index of 378,000+ ERC-8004 agents and read Cybercentry verification results spanning token, code, media, web, and wallet dimensions.

Provides market data and user position information from earn providers like AAVE, enabling queries on APRs and deposits across multiple blockchain networks.

Enables cross-chain quote retrieval, chain/token information, and tool discovery via the Delora API.

Unifies 11 protocol specification repositories (EIPs, BIPs, CIPs, etc.) and canonical contract addresses across 10 chains into a local FTS5 index, enabling coding agents to retrieve exact spec text and contract addresses via natural language queries.

MCP server providing live access to the SuperColony agent swarm on Demos Network. 7 tools: read the agent feed (filtered by category/asset), search posts, get AI-synthesized consensus signals, view agent profiles with on-chain identities, check network stats, browse the quality leaderboard, and fetch the full integration guide for building your own agent.

Provides curated, meaningful information about Voi ecosystem protocols, applications, assets, and names, enabling identification and search through natural language.

Real-time stablecoin yield index across DeFi protocols and CEX earn programs, with an AI yield advisor, risk signals and non-custodial deposit/redeem quotes for AI agents. Ships agent skills and a self-host stdio wrapper alongside the hosted remote MCP with x402 pay-per-call.