Search: 402
Search MCP servers and agent skills by name, description, category or topic — 126 results.
Pentagonal-ai/pentagonal
AI-powered smart contract security forge with 8-agent adversarial pen test. Generate, audit, fix, and compile contracts across 8 chains (Ethereum, Solana, Polygon, Base, Arbitrum, Optimism, BSC, Avalanche). Token intelligence with honeypot detection. x402 USDC payments for autonomous agents.
cnghockey/sats4ai-mcp-server
Permissionless communication supercharger for AI agents — phone calls, SMS, fax, translation (119 languages), text-to-speech, audiobook generation, plus image/video/music/text generation and document extraction. Pay per request via Lightning (L402) — no signup or API keys.
Claynsn/agent-discovery-mcp
Minimal MCP server (~250 lines TS) for ERC-8004 agent discovery + x402 payment. Three tools: `find_agents_by_skill` (via 8004scan public API), `get_agent_card`, `call_agent_with_payment` using Coinbase's official `x402-fetch`. Direct EOA signing — no smart account, no bundler, no relay. Works with Claude Code, OpenClaw, Cursor, Cline. USDC on Base/Ethereum + testnets, MIT.
up2itnow0822/clawpay-mcp
Non-custodial x402 payment layer for AI agents. Agents sign transactions from their own wallet with on-chain spend limits — no custodial infrastructure, no API keys. Built on Base.
checkra1neth/xbird
Twitter/X MCP server with 34 tools — post tweets, search, read timelines, manage engagement, upload media. No API keys needed, uses browser cookies. Pay per call from $0.001 via x402 micropayments.
kc23go/anybrowse
Convert any URL to LLM-ready Markdown via real Chrome browsers. 3 tools: scrape, crawl, search. Free via MCP, pay-per-use via x402. Remote MCP endpoint: `https://anybrowse.dev/mcp`
nach-dakwale/instadomain-mcp
Domain registration for AI agents. Check availability, buy domains (Stripe or x402 crypto), and auto-configure Cloudflare DNS. Zero setup required.
MyMedi-AI/mymedi-ai-mcp-server
Healthcare billing AI for agents: ICD-10/CPT/HCPCS code lookup (81,769 codes with RVU + OPPS pricing), prior auth prediction, medical NER, claims validation, denial-risk scoring, HIPAA compliance auditing, and NPI/drug enrichment. 20 tools, 10 free credits then pay-per-call via credits or anonymous USDC (x402). `npx @mymedi-ai/mcp-server`
daedalusdevelopmentgroup/ddg-agent-payable-services
Pay-per-call x402 gateway: one MCP server for 90+ agent tools (utilities, DNS/WHOIS, blockchain RPC, market data, prediction markets, DEX data, security audits) plus an OpenAI-compatible LLM gateway. USDC on Base, free-trial calls per agent. `pip install ddg-agent-services-mcp` or remote `https://mcp.daedalusdevelopmentgroup.com/mcp`.
Zenidp/solinkify-mcp
Agentic payments on Solana: let an agent discover x402-priced endpoints, pay HTTP 402 paywalls in USDC, manage pre-paid balances and subscriptions, and buy datasets or settle store checkouts — 15 tools behind fail-closed spending caps ($1 per payment, $10 per day by default). Non-custodial: payments lock in a program-owned escrow and release 99% to the creator. Listed on the official MCP registry
Nodeflare-app/nodeflare-mcp
Pay-per-request JSON-RPC on 23 EVM chains (Ethereum, Base, Arbitrum, plus young chains Robinhood Chain, Plasma, Ink, Zircuit) from independent bare-metal nodes. Free reads with no key; heavy methods (eth_getLogs, trace, debug) via a free API key or x402 USDC pay-per-call on Base/Polygon/Arbitrum. In the official MCP Registry. `npx -y nodeflare-mcp`
mohamedkuch/utilia-solana-agent
Read-only Solana transaction preflight and agent media tools: live priority fees, simulation, failure diagnosis, token-risk evidence, PDF-to-Markdown, and audio normalization. No API key; remote MCP calls use x402 USDC on Solana ($0.002–$0.01/call). Install via `npx -y utilia-solana-agent@0.5.7` or use remote MCP at `https://api.utilia.ink/mcp`.
supertrained/rhumb
Agent-native tool intelligence across 1,000+ scored services. 21 MCP tools: discover services, check AN Scores, compare alternatives, resolve capabilities to ranked providers, execute through 3 credential modes (managed, BYOK, agent vault), track costs with receipts, and inspect failure modes. Zero-signup option via x402 micropayments.
azeth-protocol/mcp-server
Trust infrastructure for the machine economy — non-custodial ERC-4337 smart accounts, x402 payments, on-chain reputation via ERC-8004, and service discovery for AI agents.
hshintelligence/agent-scrape
Pay-per-call web scraping for AI agents via x402 micropayments on Base. Six tools: scrape, extract structured data, screenshot, metadata, browser session, workflow. No signup, no API keys — just USDC. HTTP + MCP transports.
stagproject/sec-filings-mcp
SEC EDGAR MCP for agents: search 10-K/10-Q, free sample preview, full filing JSON via x402 USDC on Polygon. xpay: `sec-edgar-filings`. Trial without xpay key: [docs](https://github.com/stagproject/sec-filings-mcp/blob/main/docs/TRY_WITHOUT_XPAY.md). Registry: `io.github.stagproject/sec-filings-mcp`.
GTCC777/pulsenetwork-mcp
One MCP server exposing 66 specialized intelligence APIs (660+ endpoints) — finance, crypto, legal, immigration, healthcare cost, real estate, tax, climate, sports, science, and more — each an x402 pay-per-call tool in USDC on Base and Solana. Includes a `discover` meta-tool over the whole network and a cross-vertical referral graph. No API keys. `npx mcp-pulsenetwork`
agentbodegastore/agentbodega
AgentBodega MCP gives agents a live catalog of 65 x402-payable HTTP tools across search, public data, social media, status checks, media conversion, and agent-readiness checks. No API keys; install with `npx -y @agentbodega/mcp`.
Octodamus/octodamus-core
AI consensus market oracle for crypto traders and autonomous agents. 11-signal BUY/SELL/HOLD consensus (RSI, MACD, funding rate, L/S ratio, on-chain flow, Fear & Greed, congressional trading), Polymarket prediction market edges with EV scoring, Grok X crowd sentiment divergence. Ed25519-signed, on-chain verifiable. x402 micropayments at $0.01/call on Base, or 500 req/day free.
sapph1re/mcp-billing-gateway-sdk
Billing infrastructure for MCP server operators. Add Stripe subscriptions, per-call credits, tiered pricing, and x402 crypto micropayments to any MCP server without writing billing code. Operator dashboard included.
agentlux/agentlux-mcp
Agent marketplace and services MCP server for AgentLux. Browse marketplace items, manage agent identity, creator workflows, service hires, social flows, and Base/x402 commerce through 33 tools. Install via `npx -y @agentlux/mcp-server`.
bakyang2/kr-crypto-intelligence
Korean crypto market data + AI analysis for trading agents. 7 tools: AI market read ($0.10, 9 data sources + Claude AI signal), Kimchi Premium, stablecoin premium, Upbit/Bithumb prices, USD/KRW FX rate. Pay-per-use via x402 on Base/Solana.
rascal-3/chainanalyzer-mcp
Multi-chain AML risk scoring and sanctions screening for AI agents. 76+ detection rules, ML anomaly scoring, and Neo4j graph analysis across Bitcoin, Ethereum, Polygon, Avalanche, and Solana. Pay-per-request via x402 USDC on Base or Solana ($0.003–$0.05). `npx chainanalyzer-mcp`.
thoughtproof/thoughtproof-mcp
Adversarial multi-model reasoning verification for AI agents before trades execute. Claude, Grok, and DeepSeek challenge each decision — returns ALLOW or HOLD with JWKS-signed attestation. x402-gated on Base (USDC). Part of the 4-issuer Combined Attestation Standard with InsumerAPI, RNWY, and Maiat.
forgemeshlabs/coinopai-mcp
Local stdio MCP server for x402-powered paid crypto intelligence: preflight checks, trade decisions with `decision_id`, later audit against real prices, risk state, signal history, and agent automation search over USDC micropayments on Base.
Younghef/nutriref-api
USDA FoodData Central nutrition for AI agents — pay-per-call in USDC on Base via x402. Four tools (search, detail, compare, recipe) at $0.001–$0.005 per call. No signup, no API keys; MCPB-packaged for one-click install.
teodorofodocrispin-cmyk/intelica-mcp
Competitive intelligence API for autonomous AI agents. Analyzes any URL or company description and returns structured JSON with market positioning, competitors, pain points, and executable Market Score (threat_level, moat_strength, agent_recommendation). 10 context modes including regulatory_compliance, venture_screening, crypto_protocol, and sales_enablement. Pay-per-call via x402 on Base and Sol
jf-cmyk/blocksize-agentic-payments-mcp
Read-only Blocksize market-data discovery MCP package. Search instruments, inspect pricing and docs, and build x402 HTTP URLs for paid live data with USDC settlement on Solana and Base.
cryptobriefing/gloria-mcp
AI-curated crypto news intelligence for agents. Real-time headlines with sentiment analysis, AI-generated recaps, keyword search, and ticker summaries across 16 categories including Bitcoin, Ethereum, DeFi, and AI.
goodmeta/intelligence-mcp
Agent payments ecosystem intelligence. Scans GitHub, Hacker News, and npm for activity across AP2, ACP, x402, MPP, and UCP protocols. Returns scored opportunities with recommended actions. Free protocol comparison + paid scan via x402 USDC.
untitledfinancial/dpx-mcp
Settlement protocol MCP server for institutional cross-border USDC transactions on Base mainnet. 14 tools: 10-source Stability Oracle (macro, FX, ESG, climate, supply chain, earth systems), ESG scoring with 6 institutional providers, FX quotes, Verification of Payee, and USDC settlement execution. x402 pay-per-call intelligence. MiCA-aligned, GENIUS Act compatible. `npx @untitledfinancial/dpx-mcp`
forgemeshlabs/disruption-intelligence-mcp
AI-native commercial disruption intelligence for MCP clients and x402-powered agents. Supports WARN/layoff intelligence, company context, geospatial territory disruption, and x402 payment challenge inspection via the hosted Forgemesh API.
vinaybhosle/agentstamp
Trust intelligence for AI agents — identity stamps, reputation scoring (0-100), registry, forensic audit trails, and A2A passports via x402 micropayments.
zekebuilds-lab/captcha-mcp
L402 Lightning paywall + Hashcash proof-of-work gate for MCP tool calls. Free tier solves a PoW challenge; paid tier pays a Lightning invoice via self-hosted LNBits. No accounts, no API keys, no third-party SaaS. Drop-in middleware for any MCP server. `npx @powforge/captcha-mcp`.
forgemeshlabs/travel-agent-mcp
Free travel utilities plus live x402 travel intelligence: $0.01 Travel Pulse disruption and emergency-awareness checks, day trips, weekend getaways, creator experiences, weather-aware planning, mobility options, currency conversion, airport checks, and timing guidance.
forum-labs/payfetch
Non-custodial paying-fetch client for agents that pay APIs over HTTP 402 (x402, USDC on Base). The operator sets hard per-call/per-day/per-host spend caps, an approval threshold, and allow/deny lists, with an append-only receipt for every attempt; the agent can't raise its own limits. `npx -y -p @forum-labs/payfetch payfetch-mcp`
signaltech-org/bolthub-sdk
bolthub API marketplace where agents discover and pay for tools per call over Bitcoin Lightning (L402), with budgets, prepaid credit, scoped delegation, and verifiable receipts.
hypeprinter007-stack/signalfuse-mcp
11 tools for AI trading agents: fused crypto signals (10 assets), sentiment, macro regime, live strategy arena (4 strategies × 4 assets), fused web search (Brave + Tavily), and sandboxed code execution (E2B). Pay-per-call USDC on Base via x402. Free browser playground at [signalfuse.co/play](https://signalfuse.co/play) — 25 calls/day, no wallet. `npx -y signalfuse-mcp`
Alisammour/storyflo-mcp
Curated audio-news with a market-aware news signal. Search articles, fetch narrated audio, subscribe topic feeds, surface stories matched to actively traded Kalshi event contracts (CFTC-regulated; qualitative signal tags + link-out to Kalshi, never raw market data). 8 tools (7 free + 1 x402-paid over USDC on Base). Install via `npx -y storyflo-mcp`.
human-pages-ai/humanpages
Access real-world people who listed themselves to be hired by agents. Search by skill, location, and equipment, send job offers, post listings, and message workers. Free tier, Pro subscription, and x402 pay-per-use.
forgemeshlabs/imagegen-mcp
AI image generation MCP server with generate, background removal, 4x HD upscale, and full pro pipeline tools. Pay per image in USDC on Base mainnet via x402; no API key or subscription required.
forgemeshlabs/aso-audit-mcp
Free Agent Signal Optimization scanner for website/API agent readiness. Scores discovery, identity, trust, commerce, reputation, and memory signals; validates robots.txt AI bot rules, llms.txt, agent.json, Google A2A agent cards, MCP server cards, API catalogs, OAuth metadata, x402, pricing, security.txt, status endpoints, and cross-file identity consistency. Returns ASO maturity levels, evidence,
chopmob-cloud/AlgoVoi-Platform-Adapters
AlgoVoi crypto payment gateway MCP. Create hosted checkout links, verify on-chain payments, generate MPP/x402/AP2 agent-commerce challenges. Supports USDC + native tokens (ALGO/VOI/HBAR/XLM) on Algorand, VOI, Hedera, and Stellar — mainnet + testnet. Routes through AlgoVoi Cloud for managed payouts. Install: `npx @algovoi/mcp-server` or `uvx algovoi-mcp`.
kinance/circle-agent-stack-mcp
Circle Agent Stack for AI agents: create USDC wallets, set spend policies, send stablecoin, and pay x402-gated endpoints. Wraps the Circle CLI so auth stays out of the server. Six tools. `npx circle-agent-stack-mcp`
sapph1re/findata-mcp
Real-time stocks, company fundamentals, FRED economic indicators (800k+ series), SEC filings, and crypto prices. Five tools, $0.01/call via x402 micropayments on Base mainnet. No signup required.
Bichev/agentradar-mcp
On-chain trust oracle for the ERC-8004 + x402 agent economy. 18 tools for verifying AI agents: 6-signal composite trust scoring (0-100), 272-wallet scam database, ERC-8004 identity lookup, EAS attestations on Base mainnet. x402-payable. Free `get_score` / `check_scam`. Live at [vvpro.ai](https://vvpro.ai) · npm [`@agentradar/mcp`](https://www.npmjs.com/package/@agentradar/mcp).
Dusheh/myclaw-toolkit
23-in-1 developer utility MCP server: web search, exchange rates, crypto prices, QR codes, JSON formatter, UUID, URL tools, domain check, RSS feeds, and more. 6 paid APIs via x402 micropayments ($0.003 USDC on Base). `npx myclaw-toolkit`
hyperionxmota/cook-county-property-mcp
Cook County / Chicago property records — parcels, recorded sales, building permits, tax assessments, and comparable sales by street address or PIN. Hosted remote MCP, pay-per-call via x402 (USDC on Base/Solana).