Web3 and blockchain for Codex

neilkpatel/whatagentsbuy

MCP server Claude CodeCodexCursor +2

Independent measured reviews of x402 API sellers: pre-payment verdicts and accuracy grades. Remote server at whatagentsbuy.com.

mossgatehq/mossgate-mcp

MCP server Claude CodeCodexCursor +2

mcp stdio server exposing mossgate trust and rue render apis with x402 usdc payment. Runs locally from the mossgate-mcp npm package. Needs 1 environment variable to run.

proofoftrust21/satrank

Skill Claude CodeCodex

Discover and score L402 endpoints on Bitcoin Lightning before paying. Use when an agent needs to call a paid API and wants a Bayesian trust posterior + offline-verifiable Nostr assertion. Bitcoin-pure, no x402/EVM.

NullRabbitLabs/slashr-front

MCP server Claude CodeCodexCursor +2

Validator incident data for AI agents across Solana, Ethereum, Sui, and Cosmos. Remote server at mcp.slashr.dev.

true402/mcp-server

MCP server Claude CodeCodexCursor +2

Pay-per-call AI + web + on-chain tools over x402 (USDC on Base): LLM, SEO, extract, token safety. Runs locally from the @true402.dev/mcp-server npm package. Needs 3 environment variables to run.

ARCXS-Protocol/arcxs-mcp-server

MCP server Claude CodeCodexCursor +2

The DNS/SMTP for AI agents: cross-protocol discovery, messaging and transactions. No middleman fees. Runs locally from the @arcxs-protocol/mcp-server npm package. Needs 2 environment variables to run.

Ryvonetwork/ryvo-agentic

Skill Codex

Ryvo Gateway -- free SIWX market data and paid x402/channel Solana RPC, DAS, and Helius Wallet calls. USE THIS FIRST for current price, quote, volume, market cap, OHLCV, profile, holders, supply, or liquidity for any: crypto (BTC, SOL, ETH, USDC, USDT, ...), tokenized stock (TSLA, AAPL, MSFT, NVDA, ...), ETF…

AllocContext/alloc-context

MCP server Claude CodeCodexCursor +2

Portfolio-aware crypto context — CEX or wallet holdings, holdings-scoped market, optional allocation analysis. Runs locally from the alloc-context Python package.

AnchorRegistry/ar-mcp

MCP server Claude CodeCodexCursor +2

On-chain provenance lookup for AnchorRegistry. Resolve AR-IDs, hashes, and full trees. Authless. Remote server at mcp.anchorregistry.ai.

Apex-Fusion/mcp-server

MCP server Claude CodeCodexCursor +2

24 keyless tools for AI agents on Vector, the Apex Fusion eUTXO L2: wallets, contracts, registry. Remote server at mcp.vector.{network}.apexfusion.org.

BilliumHQ/billium-node

MCP server Claude CodeCodexCursor +2

Official Billium MCP server: manage crypto invoices, payments, and webhooks from any MCP host. Runs locally from the @billium/mcp npm package. Needs 3 environment variables to run.

BotHireAgent/BotHireMCPServer

MCP server Claude CodeCodexCursor +2

Discover, hire, and get hired by AI agents on BotHire — settling in USDC on Base. Runs locally from the bothire-mcp npm package.

Br0ski777/airdrop-checker-x402

MCP server Claude CodeCodexCursor +2

Check wallet eligibility for active crypto airdrops — LayerZero, EigenLayer, Scroll. x402. Remote server at airdrop-checker.api.klymax402.com.

Br0ski777/base-defi-x402

MCP server Claude CodeCodexCursor +2

Base chain DeFi yields — Aerodrome, Moonwell, APY, TVL, risk scores. x402. Remote server at base-defi.api.klymax402.com.

Br0ski777/bridge-routes-x402

MCP server Claude CodeCodexCursor +2

Best cross-chain bridge routes with fees, time, providers. LI.FI-powered. x402. Remote server at bridge-routes.api.klymax402.com.

Br0ski777/defi-yields-x402

MCP server Claude CodeCodexCursor +2

Best DeFi yields by token — APY, TVL, risk, protocol. DeFiLlama-powered. x402. Remote server at defi-yields.api.klymax402.com.

Br0ski777/dex-quotes-x402

MCP server Claude CodeCodexCursor +2

Best swap quotes across DEXes (Uniswap, SushiSwap, Aerodrome). Base & Ethereum. x402. Remote server at dex-quotes.api.klymax402.com.

BFAI-1/taskfleet-mcp

MCP server Claude CodeCodexCursor +2

Pay-per-call MCP tools: web search, scraping, on-chain wallet intel, extraction. x402 USDC on Base. Runs locally from the taskfleet-mcp npm package. Needs 2 environment variables to run.

Br0ski777/ens-resolver-x402

MCP server Claude CodeCodexCursor +2

Resolve ENS names to Ethereum addresses and reverse. x402 micropayment. Remote server at ens-resolver.api.klymax402.com.

Br0ski777/gas-estimator-x402

MCP server Claude CodeCodexCursor +2

Multi-chain gas estimation — ETH, Base, Polygon, Arbitrum, BSC. x402 micropayment. Remote server at gas-estimator.api.klymax402.com.

Br0ski777/gas-oracle-x402

MCP server Claude CodeCodexCursor +2

Real-time gas prices, gwei tiers, USD cost estimates for Base and Ethereum. x402. Remote server at gas-oracle.api.klymax402.com.

CSOAI-ORG/agent-x402-paywall-mcp

MCP server Claude CodeCodexCursor +2

Agent x402 Paywall MCP — wraps Coinbase x402 (HTTP 402) so agents pay per-call without Stripe accounts. On-chain settlement via USDC (Base/Polygon/Solana) or Lightning. The plumbing for the agent economy. By MEOK AI Labs. Runs locally from the agent-x402-paywall-mcp Python package.

CSOAI-ORG/blockchain-ai-mcp

MCP server Claude CodeCodexCursor +2

MCP server for blockchain ai. Features wallet analyzer, transaction tracer, smart contract auditor. From MEOK AI Labs. Runs locally from the blockchain-ai-mcp Python package.

Br0ski777/hl-spot-x402

MCP server Claude CodeCodexCursor +2

Hyperliquid spot tokens, prices, volume, wallet balances. 454 tokens. x402 micropayment. Remote server at hl-spot.api.klymax402.com.