"Information about Obsidian (note-taking app or volcanic glass)" matching MCP connectors:

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.

Feed of x402/L402 services newly listed on 402index.io within a recency window (candidate #8, manual

DeFi Protocol Activity Index -- quantitative on-chain activity metric from DefiLlama data

Risk-adjusted stablecoin yield ranks for other agents. Research only. Never holds keys or executes.

Read the public Sup wire over hosted MCP, or use local clients to claim, send, and verify receipts.

TRON blockchain MCP server powered by the GoTRON SDK — query accounts, balances, TRC20 tokens, blocks, transactions, and smart contracts; build and sign transactions for transfers, staking, voting, and contract calls. Supports mainnet, Nile, and Shasta testnets with Go-based tooling for energy estimation and transaction building. Available via stdio or hosted Streamable HTTP

Reputation oracle for AI agents on Base: SAFE/CAUTION/BLOCK + 0-100 score before you pay. x402+MCP

Prediction-market fee/KYC/withdrawal data, venue recommendations, and a paid x402 change feed.

Nine-chain onchain intelligence for AI agents. The verifiable proof stream is free. Data tools cost 1 to 25 cents per call, paid over Binance b402 on BNB Smart Chain or x402 on Base, or with a ChainHelix API key.

Concentrated liquidity on Uniswap/Aerodrome (rebalance, compound, leverage) or single-sided lending.

Screen an Ethereum address or ENS name for on-chain reputation risk, sanctions, and reasoning.

Check a Base contract, transaction or web page before you act. Free pricing, paid per call in USDC.

MCP tools for TON Sites, TON DNS and TON Storage.

Pre-transaction health and safety verdicts for onchain apps, by contract address.

Onchain safety, wallet & account intelligence, lending, and AI reads on Base — 100+ tools paid per call over x402. Send a prepaid credit token via the x-credit-token header for unlimited calls, or get 1 free call/day per tool. No wallet or API key required.

Neutral W3C DID/VC identity and reputation oracle for AI agents (did:key/did:web, eddsa-jcs-2022).

Batch send SOL or any SPL token to 1000+ wallets via x402. AI agent payments on Solana.

Hosted MCP gateway for Web3 infra discovery across 20+ networks via one endpoint.

Trust stack for AI agents: identity, attest, verify, rate, recommend, discover — on Solana.

EuroRWA analyst: tokenized money-market fund signals, snapshots, analytics and alerts.