MoltsPay is an open-source, gasless payment protocol that lets AI agents and services accept USDC and fiat via a single JSON config.
- for
- AI developers building autonomous agents or paid AI services
- pricing
- open source
- license
- MIT
- v2.4.1v2.4.1 — install-time hardening2 months ago
- v2.4.03 months ago
- v0.1.0v0.1.0 - Initial Release8 months ago
Key features
- One-file service config — Add a moltspay.services.json to any skill to enable payments without code changes.
- Simple wallet SDK — CLI/SDK creates a local wallet, funds with USDC, and enforces spending limits.
- Gasless transactions — Clients only sign; Coinbase CDP pays all on-chain gas fees.
- Multi-chain support — Runs on Base, Polygon, Solana, Tempo and BNB with USDC settlement.
- Multiple payment rails — Accept crypto (USDC/USDT), Alipay, WeChat or passwordless prepaid balance.
- LangChain integration — Use MoltsPay as a LangChain tool with just three lines of code.
Use cases
- Monetize an AI video generation skill and charge per request
- Enable autonomous agents to purchase data or compute services without holding ETH
- Integrate gasless payments into a LangChain agent for on-the-fly API calls
MoltsPay vs alternatives
 MoltsPay |  Fine |  SuperAGI Cloud |  Calljmp |  Pocketenv | |
|---|---|---|---|---|---|
| Best for | Gasless micro-payments for AI agents | AI-agent development platform | Running AI agents at scale | Backend for AI agents | Agent execution environment |
| Pricing | Open source | Free | Free | Free | Free |
| DevHunt upvotes | 0 | 75 | 43 | 35 | 73 |
| Launched | Mar 2026 | Jan 2023 | Jan 2023 | Feb 2026 | Apr 2026 |
- MoltsPay vs Fine: Focuses on building software with AI agents rather than payment infrastructure
- MoltsPay vs SuperAGI Cloud: Provides cloud hosting for autonomous agents, not payment handling
- MoltsPay vs Calljmp: Offers managed backend for agents as code, without built-in payment protocol
- MoltsPay vs Pocketenv: Universal sandbox runtime for agents, not a payment layer
MoltsPay FAQ
What is MoltsPay?+
MoltsPay is a gasless payment protocol that lets AI agents and service providers exchange USDC value on multiple blockchains using the x402 standard.
How does gasless payment work?+
Clients sign a 402 payment challenge; an executor relays the payment on-chain and covers all gas fees, so clients never need gas tokens.
Do I need to write my own wallet code?+
No, the MoltsPay SDK provides a simple wallet with funding helpers and spending limits for clients and a validate command for providers.
Can AI agents pay each other?+
Yes, agent-to-agent payments are a core use case, allowing autonomous discovery, negotiation and settlement without human involvement.
Summarized by DevHunt from moltspay.com · Sep 29, 2026. Details may change; check the official site.
