Search: 402
Search MCP servers and agent skills by name, description, category or topic — 126 results.
xpaysh/awesome-x402
Curated directory of x402 payment protocol resources, MCP servers, and tools for HTTP 402-based USDC payments on Base, Arbitrum, and other EVM chains.
x402node/x402-mcp
Exposes 100+ x402-paid APIs to AI agents via auto-discovery from Coinbase Bazaar. Handles USDC micropayments on Base mainnet.
true402/mcp-server
Pay-per-call AI + web + on-chain tools for agents over x402 (USDC on Base) — no accounts, no API keys; the wallet is the identity. 11 tools incl. token rug/honeypot safety (0–100 score, risk band, buy/sell simulation), new-pairs / liquidity-pull / whale-swap signals, SEO/GEO audit, web extract, link preview, robots & security-headers checks, and LLM inference. Tools auto-discover from the live cat
Kali123411/k402-mcp
Agent-payable APIs settled on Kaspa L1: text tools (summarize, schema-guaranteed extract, classify, rewrite), web reading, embeddings + semantic search, live Kaspa chain data, GPU LLM tiers, covenants-as-a-service, and RISC Zero zk proving with cycle-exact quotes. Pay per call in KAS, BTC, LTC, DOGE, BCH, DASH, ETH, or USDC — fractions of a cent, no account or API key. `pip install k402-mcp`
hypeprinter007-stack/anchor-x402-mcp
16 paid wallet & utility tools on Base + Solana. 9 commodity primitives — OFAC sanctions screen, bundled wallet intel (balances + activity + identity + sanctions in one call), dual-chain hash anchoring, signed decision attestations, mainnet tx + calldata decode, ENS + Bonfida SNS resolve, USD prices, datetime parse. Plus an async due-diligence investigator (`/v1/investigate`, $7.77, signed markdow
pgalyen1987/gate402-mcp
Pay-per-call agent APIs over x402 (USDC on Base): per-token LLM inference (Llama 3.1/Qwen/Mistral), per-second GPU/CPU compute, on-chain/DeFi + SEC-EDGAR + news data, and clean-Markdown/Cloudflare-stealth web scraping. Signed receipts, no signup — auto-claims a free-tier key. Install via `npx -y gate402-mcp`.
JessieJanie/skim402
Convert any URL into clean, agent-ready Markdown with structured metadata (title, byline, published date, language). Pay-per-use via x402 (USDC on Base) — no signup, no API keys. Single tool `read_url`. Install via `npx -y skim-mcp`.
Nikolife2016/pulsefeed-x402
Trust & safety layer for x402 agent payments: before your agent pays an x402 endpoint, verify it is safe — liveness, scam/anomaly scan (payTo hijack, bait-and-switch, honeypot), and on-chain receiver verification. ~70% of x402 endpoints are dead or scams; only ~half of "healthy" listings work. Free /verify + an open Trust Score. `npx -y pulsefeed-x402-mcp`
plagtech/spraay-x402-mcp
Pay-per-call onchain data, AI models, and batch USDC payments on Base via x402 micropayments. 9 tools including swap quotes, token prices, wallet balances, ENS resolution, and multi-recipient batch transfers.
sukrutkrdg/x402-bazaar-mcp
The Base token-safety toolkit for agents: the only B20 (Base-native token) freeze/seize/rug suite, plus pre-trade GO/HOLD/STOP gates, honeypot/sellability, wallet + approval audits, sign-guard, prices and Claude-written AI reports. 90+ pay-per-call tools over x402 (USDC on Base), free tier, no API keys. `npx x402-bazaar-mcp`
forgemeshlabs/x402-notary-mcp
Cryptographic receipts for AI outputs: notarize any model inference with a signed Ed25519 attestation, sha256 content hash, and Merkle chain-anchor on Base or Solana. $0.001 per call via x402 USDC micropayments; verification is free and needs no wallet. Notarizes the hash, never your prompts. `npx -y @forgemeshlabs/x402-notary-mcp`
sF1nX/x402station
Preflight by [x402station.io](https://x402station.io) — infrastructure for x402 agentic commerce. Six capability directions (Discover/Evaluate/Pay/Monitor/Recover/Analyze). Agents call it before every `PAYMENT-SIGNATURE` to detect decoys, zombie endpoints, dead services, and price traps. Tools: `preflight` ($0.001), `forensics` ($0.001), `catalog_decoys` ($0.005), `alternatives` ($0.005), `whats_n
ShinyDapps/l402-kit
Full-stack L402 SDK: server middleware (Express/FastAPI/axum/net/http) + agent client with auto-pay. 4 languages (TypeScript, Python, Go, Rust). MCP server, LangChain integration, budget control. `npx l402-kit-mcp`
dohyung1/x402-fpl-api
Personalized Fantasy Premier League intelligence — scored captain picks, transfer suggestions, differentials, fixture outlook, price predictions, live points, and a full manager hub that auto-detects your bank balance, free transfers, and chips.
Fabio662/yieldagentx402-sdks
Custody-free, policy-gated, receipt-backed execution layer for AI agents. 16 MCP tools across 18 chains (Base, Ethereum, Bitcoin native, Starknet, NEAR, Solana, Stacks, BNB, Rootstock, Filecoin, Aptos, Sui, TON, Tron, XRPL, Stellar, Algorand). One NEAR MPC key authority signs on EVM and BTC, no private keys held anywhere. ShadeGuard policy enforcement, Intel TDX TEE attestation, HMAC-SHA256 receip
tunedforai/x402-mcp
Real-time crypto market structure for AI agents — orderflow across 20 exchanges, 24 tokens. 9 tools: price/funding/OI snapshots, cross-exchange CVD with whale activity, 7yr OHLCV history with buy/sell flow, on-chain address risk. Free via MCP ([`@tunedforai/x402-mcp`](https://www.npmjs.com/package/@tunedforai/x402-mcp) on npm) or pay-per-call in USDC on Base via x402 REST at [`x402.tunedfor.ai`](h
rplryan/x402-discovery-mcp
Runtime discovery layer for x402-payable APIs. Agents discover and route to pay-per-call x402 endpoints by capability, get quality-ranked results with trust scores (0-100), and pay per query via x402. Includes MCP server, Python SDK, and CLI (npm install -g x402scout).
the402ai/mcp-server
AI agent service marketplace with x402 micropayments (USDC on Base). 30 tools for browsing services, purchasing, managing conversation threads, listing services as a provider, handling subscriptions, and tracking earnings. Install via `npx -y @the402/mcp-server`.
tipdotmd/tip-md-x402-mcp-server
MCP server for cryptocurrency tipping through AI interfaces using x402 payment protocol and CDP Wallet.
fernsugi/x402-api-server
Pay-per-call DeFi data API for AI agents via x402 micropayments (USDC on Base). 8 endpoints: price feeds, gas tracker, DEX quotes, whale tracker, yield scanner, funding rates, token scanner, wallet profiler. No API keys needed.
x402-index/x402search-mcp
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 required. Larger index than any other x402 discovery layer.
blockrunai/blockrun-mcp
Access 30+ AI models (GPT-5, Claude, Gemini, Grok, DeepSeek) without API keys. Pay-per-use via x402 micropayments with USDC on Base.
Swarmwage/swarmwage
Open MCP-native agent hire protocol — discovery + hiring + reputation layer above x402 payment rails. Find specialized agents, hire them with one function call, settle in USDC on Base. Sub-second sync, on-chain receipts via EIP-3009, zero protocol fee. Live mainnet 2026-05-10.
cammac-creator/ibanforge-mcp
Pre-payout counterparty screening for AI agents: IBAN validation + OFAC/EU/UN sanctions screening + Swiss BC-Nummer clearing + SEPA/VoP reachability + risk score. MCP-native (stdio via `npx -y ibanforge-mcp` or Streamable HTTP at `api.ibanforge.com/mcp`). Free tier 200 req/month, pay-per-call USDC (x402) beyond.
YBSbarker/barker-stablecoin-skills
Real-time stablecoin yield index across DeFi protocols and CEX earn programs, with an AI yield advisor, risk signals and non-custodial deposit/redeem quotes for AI agents. Remote streamable-http at `mcp.barker.money/mcp`, x402 pay-per-call.
EmblemCompany/Agent-skills
200+ crypto tools for AI agents across 7 blockchains (Solana, Ethereum, Base, BSC, Polygon, Hedera, Bitcoin). Swaps, DeFi yield, conditional orders, NFTs, cross-chain bridges, and market intelligence. Hosted MCP at `https://emblemvault.ai/api/mcp` with OAuth 2.0 + PKCE for one-line install in Claude Code, Cursor, Windsurf, and any MCP-compatible client. API key and x402 per-tool-call micropayments
refined-element/lightning-enable-mcp
Add Bitcoin Lightning payments to MCP-enabled AI agents. Pay invoices, create invoices, check balances, and access L402 paywalled APIs. Supports Strike, OpenNode, NWC wallets.
toadlyBroodle/satring
Discover and compare L402 + x402 paid API services from satring.com, the best curated Lightning and USDC API directory.
thebrierfox/the-stall
209 pay-per-call AI capabilities via x402 USDC micropayments on Base mainnet. Covers US/global equities, crypto/DeFi analytics, options chains, dealer GEX, macro indicators, congressional trades, prediction markets, on-chain intelligence, EVM & Solana analysis, SEC filings, weather, aviation, and more. No API key — pay per call from $0.001 USDC.
agentfund/mcp
Fundraising infrastructure for AI agents on Solana — campaigns, x402 donations, and on-chain reputation. MCP tools for registering agents, creating campaigns, and donating via the x402 pay-to-call flow, backed by Anchor programs (agent_registry, escrow, reputation). `npx -y @agentfund/mcp`
cinderwright-ai/cinderwright-api
x402 Discovery Hub. Search engine for the agent economy with 1450+ services indexed. Pay with USDC on Base via x402.
hifriendbot/agentwallet-mcp
Permissionless wallet infrastructure for AI agents. 29 tools for wallet creation, transaction signing, token transfers, and x402 payments across all EVM chains and Solana. No KYC, no API keys — agents pay with USDC.
DIALLOUBE-RESEARCH/hypernatt-terminal
BTC Decision Terminal for AI Agents — live vault-backed signals, on-chain proof, cross-chain swap. MCP server hosted at https://hypernatt.com/mcp/protocol. Verify in real time. Mimo BTC/USDC vault on Hyperliquid. 11 MCP tools: free manifest + Li.Fi swap + NDAT; paid Decision Core via x402 $0.01 USDC on Base. Quickstart: https://github.com/DIALLOUBE-RESEARCH/hypernatt-terminal/blob/main/docs/quicks
krystiangw/agenticpay
Open-source x402 micropayments stack for MCP. Pay-per-tool-call USDC settlement on Solana via the first open-source self-hostable facilitator (no x402.org dependency). Includes TypeScript SDK, CLI, paywall middleware, hosted devnet endpoint, and a live Claude Opus demo. `npm install @agenticpay/sdk`
tokenofesteem/mcp
An agent can commission a funny, personalized printed booklet and have it printed and mailed as a gift, including a surprise for its own user. Pay with an account token, or tokenless with a single-use Stripe payment over HTTP 402. Remote MCP, US shipping, $19.99.
PostOakLabs/ainumbers-mcp-apps
420+ deterministic fintech tools — agentic payments (AP2, x402, Visa TAP, A2A), AML/KYC risk rating, BaaS provider comparison, and MCP dev tooling (tool-definition linter, server.json validator, OAuth auditor, readiness scorecard) — with 15 flagship tools rendered as interactive MCP Apps widgets. Remote streamable HTTP, read-only, no auth, zero PII.
xyver/daedal-map
Geographic data packs for disasters, FX rates, and global indicators. New geospatial data packs weekly. Free and x402-paid execution lanes via MCP and HTTP API.
lightningfaucet/lightning-wallet-mcp
Give AI agents a Bitcoin Lightning wallet with L402/X402 paid API support, operator/agent hierarchy, budget controls, and CLI interface.
whiteknightonhorse/APIbase
Unified API hub for AI agents with 56+ tools across travel (Amadeus, Sabre), prediction markets (Polymarket), crypto, and weather. Pay-per-call via x402 micropayments in USDC.
agentmetal/mcp
Provision, SSH into, run commands on, and manage Linux VPSes from an agent — pay USDC over x402 or by card over HTTP 402, a running box in under 60s. No signup, no API key to buy.
0rkz/byte-mcp-server
PayPerByte — per-byte data marketplace for AI agents on Arbitrum. Discover publishers, evaluate on-chain Proof-of-Quality Score (PQS), subscribe + pay per request in USDC via x402 gateway. 15 tools, zero API keys.
ocbenji/bitcoinbenji-mcp
Lightning-paid (L402) Bitcoin mempool intelligence + sovereign on-prem AI inference. 25 pay-per-call tools: live fees with trend, whale/mempool alerts, fee prediction, tx status & exact fee quotes, plus AI summarize/translate/grammar/code-review/code-gen/extract/classify/rewrite/explain/vision/OCR/embeddings and long-context docs — all on a self-hosted solar-powered GPU, no third-party APIs, pay 2
gblinproject/GBLIN-MCP
Treasury standard for AI agents on Base mainnet. Park idle USDC in a cbBTC/WETH index with Crash Shield protection, JIT-swap to USDC for x402 invoice payments.
sailorpepe/undesirables-mcp-server
TCG collectibles + AI agent intelligence. 35+ tools: Vision AI card grading (PSA/Beckett prediction), Monte Carlo price simulation (Heston/Merton/Kou), AI music generation, local image generation (FLUX), TTS, RAG memory, SAST security auditing, and x402 Oracle API. 370K+ indexed products across 25 games. Install via `pip install undesirables-mcp-server`.
wuzenghai616-lang/goldbean
x402 Micropaid API Marketplace — 10 AI tools for agents. Crypto prices, web search, weather, image-gen, LLM chat, code execution, translation, sentiment analysis, and QR code generation. Pay-per-call with USDC on Base (no API keys, no registration). Install with \
bitatlas-group/bitatlas
Zero-Knowledge Cloud Drive for Humans and Agents. Client-side AES-256-GCM encryption with 7 MCP tools for encrypted file vault management — upload, download, search, and organize files that the server never sees in plaintext.
infai-tech/vulnfeed-mcp
Dependency vulnerability scanner with EPSS exploit probability scoring. Scans lockfiles (npm, pip, Go, Cargo, Ruby, Composer, Gradle, NuGet, Mix), prioritizes by real-world exploit likelihood, recommends fix versions. 9 MCP tools for scanning, monitoring, and alerting. Free tier + x402 micropayments. `pip install vulnfeed-mcp`