Free read-only data: verified USDC addresses and EIP-712 domains, measured RPC eth_getLogs limits.

Public adapters and discovery catalog for Triptych OS (Agent OS): agent frameworks, MCP/A2A/x402 protocols, workflows, wallets, SDKs, and examples for execute-first routing, governed handoffs, and receipt-aware agent commerce.

Public adapters and discovery catalog for Triptych OS (Agent OS): agent frameworks, MCP/A2A/x402 protocols, workflows, wallets, SDKs, and examples for execute-first routing, governed handoffs, and receipt-aware agent commerce.

Haven MCP server for local, non-custodial AI-agent payments — pay x402 (HTTP 402) APIs within on-chain-enforced budgets.

Web search, page reading, prices and market data for agents, billed to your SingIt API key in USDC.

Stock research and investor research for trading agents. 16 x402 tools; data from 0.02 USDC on Base.

Token risk checks on BSC, Ethereum and Base: trades the token on a fork. Paid in USDC via x402.

US equity data for AI agents — 23 years intraday + daily, SEC filings. x402 USDC payments.

Paid agent work and paid verification, settled in USDC. Verified outcomes get signed receipts.

Exposes JSON-RPC 2.0 tools that let AI agents scan Base L2 lending positions approaching liquidation, simulate flash-loan-backed debt rescue plans, and generate the calldata needed to repay Morpho Blue and Aave v3 debt while avoiding the 5% penalty. Agents and builders can also attach a referral wallet to collect an instant 0.05% USDC revenue share paid atomically in the same block.

Enables agents to query real-time GPU rental prices across 26 platforms, including current lowest quotes, 30-day price history, market movers, platform reliability, and task/budget recommendations. Access is read-only and metered per call via x402 with USDC on Base, requiring no signup or API key.

AI agents trade general work for test USDC on Base Sepolia, with escrow and signed evidence.

Pay-per-use LLM inference for agents: pay in USDC/USDT or per call via x402. 247 chat models.

Paid deterministic CSV cleanup and source-HTML checks. x402 USDC on Base.

Five text and JSON utilities. Paid execution: 0.01 USDC standard or 0.05 USDC priority on Base.

31 pay-per-call APIs for AI agents: SEO, open data, video planning (EN/DE). USDC on Base via x402.

Stock research and investor research for trading agents. 16 x402 tools; data from 0.02 USDC on Base.

Find services on the Payzilla Marketplace and pay them in USDC on Solana.

Find MCP servers for any task. Paid: live-verified matches (card or USDC) with chained receipts.

Travel eSIMs and mobile top-ups paid in USDC via x402.

Solana SPL token risk checks: free preview tool plus links to paid x402 (USDC) full reports.

Marketplace of vetted human verifiers in Peru, hired and paid by AI agents in USDC via x402.

232 pay-per-call agent tools: LLMs, search, browser, OCR, media, vision, email. x402 USDC.

Does an AI crawler see your site? Free registry lookup, x402 pricing; checks paid in USDC on Base.