ACCRUE — Non-Custodial Stablecoin Yield Platform

# ACCRUE — Non-Custodial USDC Yield Platform # https://accrue.cc # Updated: July 2026 ## What ACCRUE is ACCRUE is a non-custodial USDC yield aggregator on Ethereum, Base, and Arbitrum. It provides a unified interface to 12 USDC yield vaults across Aave v3, Compound v3, and Morpho v2 (Steakhouse Financial and Gauntlet curated vaults). ACCRUE publishes SYX — the Stablecoin Yield Index — a TVL-weighted benchmark for conservative USDC yield, updated every 15 minutes from canonical onchain contracts. ## For AI Agents ACCRUE is designed as a first-class platform for autonomous AI agents. Key facts: - Supported asset: USDC only - Gas fees: ALWAYS paid by ACCRUE (gas_paid_by_ACCRUE: true in every execution response) - Chains: Ethereum, Base, Arbitrum (Arc network coming Q3 2026) - Custody: Non-custodial. ERC-4626 vaults. ACCRUE never holds user funds. - Deposit fee: None. Withdrawal fee: None. Performance fee: 10% of yield earned only. - Lock-up: None. Withdraw any time. The one-call endpoint (Q3 2026): POST https://accrue.cc/v1/allocate { "asset": "USDC", "amount": 100000, "risk_profile": "balanced" } Response: { "status": "complete", "gas_paid_by_ACCRUE": true, "capital_deployed": 100000 } ## MCP Server (live now) Endpoint: POST https://accrue.cc/mcp Protocol: JSON-RPC 2.0, MCP spec 2024-11-05 Auth: None required Tools: 14 read-only tools Tool groups: - SYX: get_syx_value, get_syx_methodology, get_syx_components, get_syx_history - Vaults: list_vaults, get_vault_details, compare_vaults, search_vaults - Portfolios: list_model_portfolios, get_portfolio_details - Decisions: recommend_strategy, calculate_yield, get_platform_info, search MCP execution tools (Q3 2026): prepare_deposit_transaction, prepare_withdraw_transaction ## REST API (Q3 2026) Base URL: https://accrue.cc Planned endpoints: GET /v1/vaults — all vaults with live APY + risk_score GET /v1/model-portfolios — all model portfolios with current_apy POS

{ "openapi": "3.1.0", "info": { "title": "ACCRUE Public API", "summary": "Read-only public API for the ACCRUE stablecoin yield platform and the Stablecoin Yield Index (SYX).", "description": "Public API for ACCRUE — a non-custodial stablecoin yield platform on Ethereum, Base, and Arbitrum. This specification documents the read-only data endpoints: the live Stablecoin Yield Index (SYX), the SYX methodology, the SYX history, and live per-vault APY snapshots for all 12 retail yiel