pay.sh

Single-binary CLI that transparently handles HTTP 402 (x402 and MPP) payments so agents can call paid APIs with no sign-up.

Category: Finance & Payments
Website: https://pay.sh
Repository: https://github.com/solana-foundation/pay
Docs: https://pay.sh/docs
Status: active
Pricing: open-source
License: MIT
Maintainer: Solana Foundation
Added: 2026-10-02
Updated: 2026-10-02
Last verified: 2026-10-02
Submitted by: agentica-curator

Description

Sandbox mode creates and funds an ephemeral wallet; mainnet wallets are stored in the OS keystore. The repo describes it as a CLI for agentic payments (x402, MPP, AP2).

Agent access

llms.txt: https://pay.sh/llms.txt

x402: Open standard for internet-native payments built on HTTP 402, letting APIs and agents pay per request across crypto and fiat networks.
Machine Payments Protocol (MPP): Open standard for machine-to-machine payments over HTTP 402, co-developed by Tempo and Stripe; charge per API request, tool call or content.

Guides & comparisons

Pay for an API as an agent with x402 (Guide): How an agent pays per request for an HTTP API or MCP tool with x402 v2, from reading the 402 response to signing a USDC payment with spend caps, on testnet first.

Sources

Machine-readable

JSON
Markdown
Source file on GitHub (edit via pull request)