"Remote MCP Server Registry/Index" matching MCP servers:

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.

MCP server that lets AI agents search the substreams.dev package registry.

Enables MCP-capable agents to access a verified, structured registry of Terra Classic engineering findings and companion agent skills, with runnable freshness checks.

Universal MCP server for discovery, chat, registration, credits, and workflow automation across the HOL Registry Broker ecosystem.

Enables agents to publish and search index records with custom keywords over libp2p, connecting to the Agent Index Network for decentralized peer discovery and querying.

Provides grounded chain facts and build patterns for Rome Protocol, enabling agents to access live registry data and SDK patterns read-only.

Provides live game index and ranking data for Robinhood Chain, with tools to query game scores, liquidity, and token details directly from the blockchain.

Enables AI agents to interact with the Casper Network through six tools including account balance, agent registry, transaction status, transfers, and DeFi pools, using the Model Context Protocol.

Enables AI agents to perform Web3 development operations such as toolchain diagnostics, chain registry queries and live probing, address validation, secret scanning, deployment logging, and standards searches across multiple blockchains.

A Model Context Protocol (MCP) server that provides tools and resources for AI agents to interact with the Algorand blockchain.

Provides access to an EVM chain registry, allowing users to browse chains, fetch details by ID or name, and find RPC endpoints with optional filtering.

Enables discovery and search across an extensive ecosystem of crypto, blockchain, DeFi, and MCP tools, including queries for popular and Sperax MCP servers.

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.

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.

Market-timing bottom/top signals for ten markets — crypto, US/Korea/China/Hong Kong stocks, commodities, FX, inflation and Seoul/Dubai property — returning a verdict and a -100..+100 score per symbol plus market-wide bottom/top scans. Ships a stdio proxy to the ten remote Streamable HTTP endpoints; the free pitch tool introduces each market's catalog.

Trust infrastructure for the machine economy. Gives AI agents non-custodial smart accounts (ERC-4337), x402 payments, on-chain reputation via ERC-8004 trust registry, and service discovery. 8 tools: create accounts, transfer, check balances, pay for x402 services, publish/discover services, manage payment agreements, and send encrypted messages.

Let your AI assistant pay for web content in USDC (x402 on Base) within a budget you set. Inside the budget it pays on its own; above it you are asked to confirm. The wallet key stays on your computer. For claude.ai and ChatGPT there is a remote server (https://agent.p2flux.com/mcp) where you approve each payment in your own browser wallet.

Remote MCP server that exposes EVIDIQ's trust tools to verify counterparty capability, risk, and on-chain reputation, returning a signed Trust Report before any value moves.

Enables read-only queries of infiniFi's public Ethereum mainnet contracts through natural language, returning iUSD/siUSD token supplies, registered farm lists, per-farm asset balances and caps, and the published documentation index. Requires no wallet, keys, or transaction signing, and performs no write operations.

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.

Enables AI agents to run free, no-signup Ethereum on-chain lookups over a remote HTTP endpoint: wallet ETH balance, contract/EOA detection, outbound transaction counts and simple risk heuristics, plus NFT metadata (name, description, image URLs, IPFS gateway links and raw tokenURI/uri JSON) for ERC-721 and ERC-1155 tokens. Reads only, with cached results and no key, account, or wallet connection required.

Enables MCP clients such as Claude to look up AI agents registered in the ERC-8004 registries on Robinhood Chain, retrieving profiles, owners, feedback, validations, settlement evidence, and USDG-weighted trust scores. It is read-only and requires no wallet or API key, and can be reached either as a hosted remote endpoint or locally via npx.

Enables Claude to analyse a Nostr relay read-only: reachability, NIP-11 details, recent and counted events, activity reports, author lookups, spam triage and event engagement, with third-party text fenced as untrusted. When explicitly enabled, it also lets Claude draft notes and reactions and publish them through a NIP-46 remote signer, with the user's key staying in the signer and every publication requiring human confirmation.

The open registry of AI agents. Every agent gets a free birth certificate (a number and a date) and can timestamp what it creates, or only its SHA-256, with an RFC 3161 timestamp and a Bitcoin anchor that anyone can verify without us. Free, no account.

An MCP server that provides a semantic layer for the Voi ecosystem, translating raw blockchain data into human-readable information about protocols, applications, and assets. It enables users to identify contract roles, resolve enVoi names, and explore curated registry data for ecosystem services like HumbleSwap and Nautilus.

Provides trust and reputation tools for AI agent wallets within the x402 payment ecosystem and ERC-8004 agent registry. It enables users to perform wallet reputation lookups, real-time risk assessments, and browse registered agents.

Enables AI agents to obtain on-chain DEX aggregator quotes computed by the on-chain Quoter contract through their own RPC node, returning verified unsigned swap calldata, simulations, token info, deployment registry checks, and live staking solvency. All tools are read-only and keyless, so the agent never signs or holds a private key.

MCP server enabling AI agents to access crypto and web3 data via pay-per-call on the MPP/Tempo rail (USDC.e). It includes unique tools like Vietnamese crypto news and company registry lookup, with built-in spend caps and no API key needed.

Trust intelligence MCP server for AI agents. 19 tools for identity stamps, reputation scoring (0-100), agent registry, forensic audit trails, ERC-8004 bridge, and A2A passports via x402 USDC micropayments.

Enables AI agents to generate or import multi-chain keys, sign messages and unsigned transactions, broadcast them, and query native balances across Ambient, Solana, BSC, and Arbitrum. Private keys stay encrypted on the local machine, so agents can complete the sign-and-send half of a swap, liquidity, or bridge workflow handed over by a remote market server.

Provides remote SSE-based computational infrastructure with 40+ deterministic tools, including free utilities like JSON repair and context trimming, plus pay-per-call web3 and network oracles for autonomous AI agents.

Provides access to the AgentScore Registry on Base Sepolia to retrieve agent reputation scores, history, and registration details. It enables trustless querying of agent performance metrics through standard Model Context Protocol tools.

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

Enables Claude, Cursor, and other MCP clients to connect by pasting a single Streamable HTTP URL and invoke public tools for stack description, Robinhood Chain ping, BLAKE3 hashing, transaction verification, post-quantum crypto, registry, and product API health, plus user-paid on-chain writes. Cryptographic operations and chain-id-guarded settlement on Robinhood Chain testnet 46630 are delegated to the SDK, requiring a product API key and the caller's own funded wallet for writes.

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.

Enables AI agents to search and filter Web3 job listings from web3.career, supporting parameters like remote, country, tag, and limit.

Enables any compatible MCP host to search and retrieve Web3 job postings from web3vacancy.com using filters such as query, location, remote preference, posted date, and result limit. It also fetches individual job details and apply URLs through read-only search_jobs and get_job tools.

Enables remote MCP servers to request wallet approvals, signatures, and transactions through an approval URL while keeping private keys in the user's browser wallet.

Enables any MCP host to search job postings on hashtagweb3.com by keyword, location, remote preference, and posting date, and to fetch full details for a specific listing. It exposes the board's public API/RSS as the read-only, rate-limited tools search_jobs and get_job.

Remote MCP server enabling agents to search, buy, and publish reusable knowledge via nine agent-native tools without API keys or custodied wallets.