presign-guard-wallet-mcp
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- AlicenseCqualityCmaintenanceSelf-hosted wallet MCP server for AI agents. Provides 42 tools for multi-chain crypto operations: transfers, token management, DeFi (swap, lend, stake, bridge, perp), NFT, smart contracts, and x402 payments. Supports EVM and Solana with policy engine, spending limits, and human approval.6029MIT
- AlicenseNot gradedqualityCmaintenanceBudget & cost control for AI agents: hard per-agent spend caps, rate limits, idempotency, and human-in-the-loop approval — enforced before each LLM call, not after the invoice. One hosted MCP endpoint (no proxy or self-hosting), settled via x402 (USDC on Base).MIT
- AlicenseAqualityAmaintenanceA budget-bound x402 payment wallet for AI agents: it autonomously pays HTTP 402 payment-gated URLs across every major chain (EVM, Solana, and many non-EVM families). Self-custodial and backendless, your key, your RPC, with spend caps enforced before any on-chain send.89MIT
- AlicenseNot gradedqualityAmaintenanceMCP server with paid_fetch, list_merchants and budget_status tools: AI agents pay x402 APIs in USDC on Base inside an owner-signed, on-chain budget, so a prompt-injected agent can't overspend or pay an attacker.1MIT
- AlicenseNot gradedqualityAmaintenanceDeterministic, auditable payment policy enforcement for AI agents. It provides pre-action authorization with scopes, budgets, allowlists, and signed mandates via an MCP server.MIT
- AlicenseNot gradedqualityDmaintenanceNon-custodial payment engine for AI agents supporting BTC, ETH, USDT, USDC, XRP, XMR, and ZEC. Exposes wallet, invoice, and payment tools over MCP with per-agent spend limits, plus x402 pay-per-call support.47 npmBusiness Source 1.1
TDQS
Scored across 6 tools
Most tools target distinct actions: sending USDC, sending native coin, pausing, viewing status, discovering services, and paying an x402 endpoint. send_usdc and pay_x402 both move USDC out of the wallet, so an agent could momentarily conflate a direct transfer with a 402 payment, but the descriptions draw a reasonably clear line.
Names follow a predictable snake_case verb_noun pattern (send_usdc, send_native, pause_spending, find_services, pay_x402). wallet_status is noun-first rather than verb-first, a minor deviation that stays readable and unambiguous.
Six tools is a tight, well-scoped set for a guarded spending wallet, and each one earns its place: transfer, pay, pause, inspect, discover. Nothing feels redundant or missing at the count level.
Core money-moving and safety flows are covered, but the lifecycle has gaps: pause_spending implies the owner resumes later yet there is no resume/unpause tool, and there is no transaction or payment history surface. Agents can work around these, but they are notable omissions for a wallet.