The simplest way to add USD payments between AI agents. Powered by Stripe.
Unified agent-economy SDK for autonomous AI agents — chain-opaque AiFinPayAgent surface (call/openSession/balance/verify) over Polygon and Solana execution environments.
Countersign Core API contract — typed REST + ws schema and OpenAPI spec for the cross-vendor agent-spend control plane.
Countersign SDK — the typed client agents and operators use to wire in the cross-vendor freeze, spend-guard, and live audit ledger. Browser + Node.
Multi-domain real-time anomaly detection MCP server. Mempool (5s polling), stablecoin depeg (1min polling), blockchain, aviation, and GitHub anomalies via x402 micropayments.
Setup helper and runner for SELAT agent payments. Bundles the selat-discovery skill and selat-pay as dependencies; checks Circle CLI and config separately.
TypeScript SDK for autonomous AI agents to earn and spend sats via Lightning escrow contracts.
Spend-controlled x402 for AI agents. Give an agent an expense account — an allowlist + per-call/per-day budget — and pay any x402 endpoint in a few lines. Plus drop-in x402 client/server helpers.
Govern x402 (HTTP-402 machine payments) with Countersign — guard an agent's payment against policy before it pays.
Govern AP2 (the Agent Payments Protocol) with Countersign — guard an agent's mandate against policy before it signs the PaymentMandate.
Single-tool MCP server that pays $0.001 USDC per call via x402 to fetch live Base mainnet gas data.
Self-custody x402 payments for OpenClaw agents on Solana. Your agent pays for x402-gated APIs, data, and other agents — you bring your own signer, so the skill never holds a private key — with a hard spend cap. Real-money mainnet is opt-in (set allowMainn
MCP server that gives AI agents a wallet: pay x402 APIs (USD + EUR), check balances, self-onboard with one tool call. Use with Claude, Cursor, or any MCP client — delegated custody, no private keys on the agent.
Open-source merchant facilitator for the Agentic Commerce Protocol (ACP) bridging ChatGPT, Claude, Gemini, and other agentic-commerce clients to MercadoLibre and MercadoPago. ACP-compliant checkout sessions, signed webhooks, /.well-known/acp.json discover
Independently verify AxioRank audit receipts, agent-commerce conformance seals, agent reputation credentials, and coding-session seals offline. Merkle inclusion proofs, Ed25519 signed tree heads, delegation provenance, human-approval signatures, witness c
MCP server alias for @arispay/payagent-mcp. Configure your Claude Desktop / Cursor / Windsurf MCP server as npx buyforme-mcp to let the model pay any x402 URL via ArisPay delegated custody.
Drop-in budget gate for autonomous AI agents — reserve, pay once, settle. Exactly-once spend over a strongly-consistent ledger.
Pre-pay risk gate for autonomous payment agents — block prompt-injected destinations, intent mismatches, overcharges and drains before your agent signs. Backed by 402Sentinel; drops into the Claude Agent SDK, x402/AgentKit, or any framework.
Countersign as MCP tools — the cross-vendor kill switch + spend guard inside any MCP client (Claude, Cursor, …).
Pay-per-call MCP server for autonomous AI agents — installs in Claude Desktop / Cursor / Continue with one config block; on-chain settlement on Polygon and Solana via x402.
OpenClaw plugin — one-call web0 setup: identity, a paid x402 storefront, receipt anchoring, and a .null name-binding plan
OpenClaw plugin — streaming + recurring agent billing over x402 (metered pay-as-you-go + subscription), settled in batches, with a hard per-session cap. Non-custodial.
Paybond Kit for TypeScript: agent spend governance for paid tool calls with spend authorization, evidence receipts, refunds, disputes, hosted Gateway sessions, and settlement.
Production payment infrastructure for AI agents — real Stripe/Paystack/Lightning rails, autonomous shopping with escrow, Agent Credit Score (300-850), Ed25519 identity, behavioral finance, Merkle integrity, anomaly detection, human-in-the-loop approval. B
Scaffold a self-hosted x402 merchant in one command — accept stablecoin payments from humans AND AI agents, straight to your wallet. Paste a public address; no key, no account, no backend, no fee.