Add Spraay — Payment Infrastructure for AI Agents (batch payments, x402 gateway, Bitcoin PSBT, RTP)

[plagtech]

Spraay is the payment layer for autonomous AI agents.

What it does:

• 💧 Batch crypto payments to 200+ recipients in one tx (13 chains)
• ⚡ x402 micropayment gateway with 76+ paid endpoints
• ₿ Non-custodial Bitcoin PSBT batch payments
• 🤖 Robot Task Protocol (RTP) — agents hire physical robots
• 💰 Escrow, payroll, and agent-to-agent settlement

Complements Bankr: Bankr handles trading → Spraay handles payouts. Together they create a full trading-to-distribution pipeline.

Updated from original PR — expanded from batch-payments-only to full payment infrastructure covering x402 gateway, Bitcoin, RTP, and 13 chains.

[plagtech]

Update — March 2026
Spraay x402 Gateway has expanded significantly since this PR was opened:

62 paid endpoints across 8 categories (up from 6):

AI Chat (200+ models via OpenRouter)
Batch Payments (200 recipients/tx)
DeFi (Uniswap V3 swaps)
Price Oracle / Gas / FX
Cross-chain Bridge (11 chains)
Payroll, Invoicing, Escrow
Wallet Analytics, AI Inference
NEW: GPU/Compute — image gen, video, LLMs, audio via Replicate ($0.05/call)
NEW: Search/RAG — web search, content extraction, Q&A via Tavily ($0.01-$0.02/call)
Communication (email, SMS, webhooks, XMTP)
Infrastructure (RPC, IPFS, cron, logging)
Identity (KYC, auth/SSO)
Compliance (audit trail, tax)
63-tool MCP server on Smithery: @plagtech/spraay-x402-mcp
Developer docs: https://docs.spraay.app/
Gateway: https://gateway.spraay.app/

All endpoints are x402-native — agents pay USDC per request on Base. No API keys, no accounts.