Servers that connect to ChatGPT by URL or config. Every card carries the server address and the step-by-step ChatGPT setup.
Pay-per-call tools for AI agents, billed in USDC on Base via the x402 protocol — no API keys, no subscription.
- Weather: Worldwide weather: current conditions + 3-day forecast by lat/lon or city name. Query: ?city= or ?lat=&lon= — $0.003/call, paid per request via x402 (USDC).
- Crypto Price: Spot prices + 24h change for any CoinGecko-listed tokens, multi-currency. Query: ?ids=bitcoin,ethereum&vs=usd,eur — $0.003/call, paid per request via x402 (USDC).
- Crypto Token: Live token market data by contract address across 7 chains (Ethereum, Base, Arbitrum, Optimism, Polygon, BSC, Avalanche): price USD, 24h volume, liquidity, FDV, market cap, price change.
Docs & Notes · No sign-in · Free
Machine-payable prediction-market briefs and probability-change monitoring for AI agents.
Development · No sign-in · Free
10 pay-per-call tools for AI agents: QR, screenshots, DNS, OCR, PDF, email & more.
Docs & Notes · No sign-in · Free
Pay-per-call YouTube intelligence for AI agents.
- Health Check: Free service health check (no payment). Use to verify the server is live.
- Video Preview: Free YouTube video preview (no payment): title, channel, stats, and transcript excerpt. Taster for get_video_intelligence. Shows value before asking for payment. Capped: transcript exce
- Search And Rank Videos: Search YouTube and return AI-ranked results with relevance reasoning. Uses the YouTube Data API to find videos, then Muse Spark AI ranks them by relevance, credibility, and con
Design & Websites · No sign-in · Free
Wash-filtered intelligence for x402: categories, services, wash analysis, trends.
Development · No sign-in · Free
Wash-filtered intelligence layer for x402 — read-only access to category stats, service details, wash analysis aggregate, service search, and 24h trends.
- X402 Get Categories: List all 33 x402 service categories with aggregate stats: services count, 24h volume, transaction count, real-volume %, and label distribution. Use this to understand the shape of
- X402 Get Service: Get the full detail record for one x402 service: name, description, seller address, chain, price, 24h and total transaction stats, 30-day daily volume time series, buyer-label distri
- X402 Check Wash: Get the aggregate wash-report dataset: 30-day total active buyers, real-volume %, suspected_wash and self_test counts, full 8-label distribution, 14-day wash percentage time series, a
Search & Research · No sign-in · Free
Pay-per-use tool API for AI agents.
Automation · No sign-in · Free
Pay-per-call tool API for autonomous agents.
- X711 Web Search: Multi-source web search with automatic fallback chain: HackerNews Algolia → Wikipedia REST → DuckDuckGo → x711 Hive collective intelligence. Always returns results — if live web sourc
- X711 Price Feed: Live crypto price feed via CoinGecko. Returns real-time USD price and 24h change for any supported asset. Supports: ETH, BTC, SOL, USDC, USDT, BNB, MATIC, AVAX, LINK, UNI, ARB, OP, MO
- X711 Hive Read: Query The Hive — x711's collective agent memory. The Hive contains knowledge contributed by all agents that have ever used x711: gas patterns, contract wisdom, DeFi discoveries, cross-
Search & Research · No sign-in · Free
The Xata MCP server lets AI assistants and agents interact with your Xata organizations, projects, and Postgres database branches.
- Call Destructive Operation: Invoke a Xata REST API operation that destroys data or revokes access: deleting an organization, project, branch, invitation, or API key, removing a member, restoring a bra
- Call Read Operation: Invoke a Xata REST API operation that only reads: listing and describing organizations, projects, branches, backups, members, and API keys, and querying branch logs and metrics. P
- Call Write Operation: Invoke a Xata REST API operation that creates or updates data: creating an organization, project, or branch, updating settings, inviting a member, issuing an API key, and so on.
Cloud & Databases · No sign-in · Free
Authenticated MCP for Xavio merchants: stories, products, schedules.
Automation · API key required · Free
Search the public Xavio catalog and create firm checkout quotes.
Search & Research · No sign-in · Free
Get XBRL data from US public companies and utilities by searching on facts, reports, entities, and tables or statements (cubes).
- Xbrl SearchEntities: Search for XBRL entities (companies) based on entity attributes such as CIK, name, or ticker.
- Xbrl SearchFacts: Search for XBRL facts based on attributes of the fact, the report it was in, or the source of the data. Supports dot notation for all references.
- Xbrl SearchReports: Search for XBRL reports based on report and entity attributes. Supports dot notation for all references.
Search & Research · API key required · Free
Fetch recent public X/Twitter posts by named handle for monitoring, comparison, OSINT, and research.
Development · API key required · Free
XGR.Network MCP is a connector for XGRChain and the XDaLa on-chain process engine, enabling AI agents to access chain data, inspect process activity, and…
- Get Chain Status: Use this for live XGRChain status. Returns chain id, latest block number and gas price from JSON-RPC.
- Get Latest Block: Use this when the user asks for the latest EVM block details from XGRChain.
- Get Account Live State: Use this for live EVM account state. Returns balance, nonce and contract code for an address.
Automation · No sign-in · Free
Wallet and payments for AI agents: auto-pay x402 APIs in USDC on XDC, within on-chain limits.
Automation · No sign-in · Free
Reputation-ranked analyst earnings estimates.
Development · No sign-in · Free
27 live market-research tools for trading agents: scans, options flow, sentiment, valuation, alerts
Search & Research · API key required · Free
Non-custodial x402 MCP server for AI agents.
- Xenarch Check Gate: Check if a URL or domain has an x402 payment gate. Returns gate status, accepted payment requirements (price, asset, network), and the seller wallet. Use this before paying to conf
- Xenarch Pay: Pay an x402-gated URL with USDC on Base L2 and return the gated content. Signs an EIP-3009 transferWithAuthorization, settles on-chain, then re-fetches the resource with proof of payment.
- Xenarch Wallet Status: Show the agent's local payment wallet: its address, USDC balance on Base, and whether it's funded. Use this to find the address the user needs to top up with USDC, or to check t
Advertising · No sign-in · Free
Spanish SME suite: VeriFactu invoices, time clock, e-sign.
Development · No sign-in · Free
Real-time market events, sentiment, and technical analysis as MCP tools, backed by real data.
Development · API key required · Free
XFish.hu Hungarian fishing tackle webshop.
Search & Research · No sign-in · Free
Pick the right LLM for any task.
Tasks & Projects · API key required · Free
Pick the right LLM for any task.
- Rank: Rank LLMs for a stated purpose. Returns a shortlist with weights, scores, and plain-English rationale per pick. Use when the user wants to see and compare alternatives, not just one answer.
- Pick: Return the single best LLM for a stated purpose. Concise output, no list. Use when the user has settled on the criteria and just wants one answer.
- Discover: Show which quality dimensions matter for a stated purpose, WITHOUT ranking any models. Returns the inferred weights and the discovery-walk trace. Useful for understanding how XFMS interprets
Tasks & Projects · API key required · Free
Payment decisions, durable evidence, x402 resource discovery and live gateway status for AI agents.
Finance & Payments · No sign-in · Free
Page extraction, product offers and feed digests.
Development · No sign-in · Free
Agent-first hosting: create apps, commit code, deploy, get HTTPS URLs.
Development · No sign-in · Free
Access real-time and historical market data for China A-shares and Hong Kong stocks, along with ne…
Development · API key required · Free
XKCD MCP — wraps xkcd.com JSON API (free, no auth)
Development · No sign-in · Free
Suggests a relevant xkcd comic during a conversation, via semantic search over every comic.
Development · No sign-in · Free
xmagnet — The growth engine Claude can actually run Stop describing what you want done.
- Show Suggestions: Display a menu of common xmagnet actions — search contacts, find companies, view pipeline, manage campaigns, and more.
- Search Contacts: Search for contacts by title, company, or query. ALWAYS searches saved Xmagnet contacts first (free, instant). Only calls external API if Xmagnet returns 0 results (costs credits). Ex
- Find Contacts At Companies: Find people with a specific title/role at companies matching given criteria. Credits are deducted per search. Examples: 'CTOs at funded SaaS companies', 'VPs of Engineering
Advertising · No sign-in · Free
