API providers can earn stablecoin-denominated payments on a pay-per-call basis.
Mahshar is an open-source API marketplace built on Arc enabling both human users and autonomous AI agents to discover, purchase, and consume API services through pay-per-call stablecoin payments.
Powered by x402, Mahshar allows API providers to monetize their existing services without building their own payment infrastructure. Providers can list APIs, set stablecoin prices, manage access credentials, track usage, and manage earnings through the marketplace.
For autonomous AI agents, Mahshar offers native Model Context Protocol (MCP) integration, supporting programmatic API discovery, externally signed payments, paid API execution, and purchase-specific response recovery.
The platform also includes secure API proxying, server-side credential protection, durable payment accounting, and wallet funding workflows.
Our long-term vision is to expand Mahshar beyond traditional API commerce into a reliable, extensible digital services marketplace for humans and autonomous AI agents, focusing on seamless payments, provider accessibility, and trustworthy service delivery.
API providers can earn stablecoin-denominated payments on a pay-per-call basis.
Autonomous AI agents can discover and purchase API access on their own.
Agents can execute API calls programmatically through MCP.
Mahshar proxies API calls with credential protection and purchase recovery.
API transactions are powered by x402 on Arc.
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