TypeScript SDK for the π-SPI Business API.

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A curated list of platforms, APIs, tools, standards, and learning resources for payments.

AI financial action infrastructure for African payment rails, with MCP tools, M-Pesa/Daraja integration, approvals, auditability, Redis rate limiting, PostgreSQL persistence, and a React operator dashboard.

MCP-native pay-per-tool-call micropayments for AI agents (Solana + USDC + x402)

Complyr is a private audit infrastructure for onchain business payments.

Daily signals for agentic payment infrastructure, stablecoin rails, wallets, risk, compliance, and agent-executable commerce.

Infrastructure backend for crypto payment orchestration that enables merchants to create pay orders, generate route-backed payment details, and process on-chain transactions through a FastAPI + PostgreSQL service.

Legacy callback vs. autonomous x402 settlement: a complexity comparison. Quantifies the 100% reduction in state management code when moving to programmable payment settlement.

The dedicated virtual account infrastructure on Nomba: per-customer provisioning, inbound transfer reconciliation, and a clean webhook API for downstream teams.

Non-custodial crypto payment gateway. Accept BTC, ETH, USDC, USDT at 0.8% flat. Stripe-compatible API, instant on-chain settlement, no chargebacks.

Three-stage migration from Lithic webhook rails to native x402 settlement on Base. Removes 100% of state management code. Benchmarked with Toxiproxy under African network conditions.

Architecture examples for payout orchestration, stablecoin settlement, financial ledgers, and modern fintech infrastructure.

Interswitch is Nigeria's foundational digital payments and transaction-switching company, founded in 2002 and regulated by the Central Bank of Nigeria. It owns the Verve card scheme (Africa's first domestic EMV chip-and-PIN brand), the Quickteller consumer and business payments platform, the Webpay / Web Checkout gateway, the Paycode cardless…

💳 Enable instant fund transfers across West Africa with the π-SPI SDK for real-time payment processing and cross-border transactions.

Web3 billing infrastructure for automated crypto subscriptions on Sui blockchain. Features: on-chain scheduler

Post-quantum-ready compliance ledger for AI agent payments. AP2/ACP/x402-compatible SpendEnvelopes signed with ML-DSA-65 (FIPS 204). Built for the HKMA Quantum Preparedness Index era.