
Problem: AI agents can think, not act on-chain. No wallet, no contract calls, no way to pay paywalled APIs. Every economic action needs a human signature — breaking the autonomous agent promise. Solution: Arcent wraps Arc's agent economy in 17 MCP tools, so any MCP client (Claude, Cursor, ChatGPT Desktop) acts on-chain via natural language: - 3 Identity tools (ERC-8004 Trustless Agents) - 8 Job tools (ERC-8183 Agentic Commerce, 6-state escrow) - 4 Payment tools (Circle App Kits — send, swap USDC/EURC, bridge CCTP v2, balance) - 2 Nanopayment tools (Circle Gateway + x402 — deposit, pay) Tell Claude: "Register my agent, create a 10 USDC job, escrow it, pay this paywalled API 50 times." Arcent translates it into contract calls, signs, and returns receipts. Demo (Track 2): Our test-seller/ (custom Express + x402, Circle-compatible) + MCP tools as buyer. Three rounds: - R1: 300/300 settled clean baseline - R2: 85/88 edge probes (3 bad URLs failed gracefully, 0 charge) - R3: Hardened 1000/1000 stress — 0 fail, 0 dup, buyer/seller reconciliation MATCH ($10.325 = $10.325, diff 0), p95=425ms, total gas $0.008 Combined: 1,385 settlements, 27x the 50-call minimum. Traditional CCTP would cost $300+ gas; Arcent = $0.008 → 36,787x reduction. Honest limits: Testnet only. Minimal seller harness, no productized framework. Partial reputation (feedback only). MCP clients are the UI. Timeline note: Base toolkit prototyped April 10–17; final integration, 1K stress runs, demo video, deck produced explicitly during the Apr 20–26 event window. All public standards (ERC-8004, ERC-8183, x402). Arcent is the first MCP-native toolkit wrapping them together. MIT licensed. Repo: github.com/sametarsslan19913/arcent-agent-mcp Domain: arcent.ink Not affiliated with cutepawss/arcent (x402 gateway) or U.S. Army Central.
26 Apr 2026