Read-only MCP server for discovering and ranking on-chain agents on Stellar mainnet via natural language search, reputation probes, and profile lookups.
This MCP wraps Bitrefill public API to allow agents to search for products and shop using cryptocurrencies like Bitcoin, Ethereum, Solana, and many more.
9 tools, Lightning-gated. Pay per call.
For agents that need verifiable signed actions with an audit trail.
Nostr event signing via daemon
Publish events to relays
Create Lightning invoices
Action receipts — signed proof of agent actions
Identity attestation
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
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.
Enables agents and humans to pay per question over x402 and receive plain-language answers about on-chain activity, priced by complexity before execution. Each paid request runs a live subgraph round trip to search, validate, generate and execute a GraphQL query, then synthesizes the raw results into a grounded response alongside the underlying data.
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.
A Model Context Protocol server that enables Claude AI to interact with the Solana blockchain, allowing it to execute transactions, query accounts, manage wallets, get price predictions, trade tokens, and access various blockchain data sources.
Checks live x402 routes across Base, Solana, and Algorand before agents spend. $0.003 USDC settles only for a valid live eligible route; normal typed misses are not settled. Free preview and validate tools. Seller payment is separate; the agent keeps its wallet. Optional signed route-binding receipts support buyer-side checks.
Provides read-only tools to query live Polymarket prediction-market data via the public Gamma API, enabling search, browsing, and detailed market and event information.
Enables AI agents to make pay-as-you-go AI inference requests through x402 with automatic Solana USDC payments, no API keys or registration, while enforcing configurable spending limits.
Read-only on-chain query surface for the AgentCivics civil registry on Sui — soulbound AI-agent identities, on-chain memories, reputation, refusal records. Hosted, no install, no keypair. For write tools (register, write_memory, record_refusal), install the npm package @agentcivics/mcp-server locally and supply your own keypair.