"Techniques for Optimizing Oracle Database Queries" matching MCP servers:

On-chain crypto indicators (EMA, RSI, VWAP, Bollinger) via Chainlink oracles.

MCP server providing on-chain price oracle data from Chainlink and Pyth Network, with tools for latest and historical prices, feed discovery, and staleness flags. No API keys required; uses free public RPCs and Hermes API.

On-chain TCG price oracle for the LitecoinVM ecosystem. 6 tools: search 433K+ trading cards, 60-day price history, Merkle proof verification on LiteForge (Chain 4441), Monte Carlo simulation, and AI card grading via Qwen 2.5 VL.

Price feeds, TWAPs, and oracle service for autonomous agent settlement.

An MCP server that connects Hermes Agent to the Solana blockchain, enabling natural language queries for wallets, tokens, NFTs, transactions, whale movements, and network health.

Live gas prices with gwei tiers, USD cost estimates, and congestion level. Time your transactions perfectly with pay-per-call via x402.

Enables AI agents to check DeFi liquidation risk levels for lending protocols like Aave, Compound, and Morpho, including at-risk positions, liquidation prices, current prices, and aggregate exposure. Access is pay-per-call via x402 micropayments with USDC on Base, requiring no API key or signup.

Ed25519-signed market-state receipts for 28 exchanges: is the venue open right now, as a receipt any agent can verify without trusting the operator, fail-closed (unknown is reported as closed). MCP tools: get_market_status, get_market_schedule, list_exchanges, get_payment_options. Free tier 500 calls a day with an instant key; x402 pay-per-call at 0.001 USDC on Base; Builder 99 USDC a month

Deterministic Web3 x402 Critical Minerals, Battery Passport & Urban Mining Oracle. Delivers real-time LME/COMEX spot benchmarks, EUDR satellite audit, and sub-second 0.4s micro-settlements across Solana & EVM (USDC).

Enables AI agents to inspect the public NFH protocol corpus, verify census status, and prepare bounded Ethereum wallet intents for claims and non-custodial market actions while never signing or submitting transactions.

Enables access to DePIN RF telemetry, spatial heuristics, and threat intelligence through metered MCP tools with per-record spend caps and on-chain settlement.

Sovereign AI intelligence platform with 73K+ darknet threat intel points, 65+ divination systems, and Norwegian legal database. Tools: threat_search, threat_feed, threat_stats, oracle_reading, norlex_legal.

MCP server for Pi Network that enables AI agents to query Pi chain data (balances, transactions) and verify user tokens, with optional payment sending that is off by default.

Enables users to compare current Aerodrome veNFT voting positions, bounded claimable rewards, and selected pools' voting evidence on Base against a saved local baseline, with retryable, atomically stored change reports. All tools are read-only on chain, requiring no keys, signing, or transactions.

UNDER-RECONSTRUCTION

A server that enables interaction with the Solana blockchain, providing access to over 40 Solana RPC methods including getting balances, transaction details, block information, and sending transactions.

Merx - TRON Resource Exchange Merx is the first TRON resource exchange that aggregates energy and bandwidth providers into a single MCP server. GitHub: https://github.com/Hovsteder/merx-mcp Hosted SSE: https://merx.exchange/mcp/sse npm: merx-mcp Website: https://merx.exchange Stats * 52 tools, 30 prompts, 21 resources * 7+ energy providers (CatFee, ITRX, PowerSun, Fe

23 tools for AI agents working with Nostr Open source. No API key. No account. NIP-46 remote signing Publish notes, reply, react, repost Encrypted DMs (NIP-04 + NIP-44) Fetch events, profiles, social graph

MCP server providing real-time crypto prices (Chainlink + Binance), Polymarket prediction market data, deep web research, and JS-rendered web scraping. All services available via x402 Solana micropayments.

Pay-per-task AI agent for writing, research, code, DeFi & blockchain. Pay in USDC on Base or Solana. Supports A2A, MCP, x402 and Agentmail protocols.