Algorand Launches AC2 Protocol for AI Agent Security
Algorand (ALGO)
Editor:
Eugene Serbin
DailyCoin reports that the Algorand Foundation launched AC2, an open protocol designed to secure AI agent interactions without exposing user credentials. The Agentic Communication and Control Protocol went live on August 25 as an open-source specification and reference implementation. AC2 allows AI agents to request sensitive actions, such as payments or code signing, without holding a user’s private keys or API credentials.
Instead of giving an agent a copy of the house key, the protocol works like a doorbell where the agent asks for access and the user approves on their own device. When an agent needs to sign an operation, it sends a request over a direct, end-to-end encrypted connection. The user reviews the action in a wallet or app and approves it with a hardware-bound FIDO2 passkey signature.
The agent receives authorized proof of intent rather than the credential itself. The protocol combines DIDComm v2.0 for message formatting, WebAuthn/FIDO2 for authentication, and WebRTC DataChannels for transport. It does not require a central message relay or a blockchain to operate, though it can support on-chain use cases like x402 payments. A basic implementation can be added via a plugin, allowing for bounded delegation so agents act only within signed limits.
How the market reacted
Whalio's own Binance spot order flow for ALGO, measured when this story was written up on 26 August 2026. Not the outlet's figures.
Algorand is currently trading at $0.09020 on Binance spot markets. Short-term buying pressure is weak, with the 1-hour buy ratio at 49.9% and a negative volume delta of -$189, indicating immediate sellers are dominating. However, the 4-hour picture shows more balanced activity, with a 55.3% buy ratio and a positive volume delta of +$23,573, suggesting some accumulation over a slightly longer timeframe. Over the full day, buying pressure has faded, evidenced by a 43.0% buy ratio and a significant negative volume delta of -$291,158. The cumulative volume delta closed at +$70,441, meaning net buying occurred for 14 of the 24 hours despite the overall negative delta. Spot volume for the period was $2,069,518 across 22,556 trades.
The latest daily buy ratio of 54.0% sits at the 90th percentile of the last 322 days, against a median of 49.9% - among the strongest buying days it has had.
Twenty-four hours later
What ALGO did over the 24 hours after the story broke. The market moves for its own reasons; this is what happened, not what the story caused.
Was that an ordinary day?
The same Binance spot measurements for ALGO, averaged over the days leading up to the story.
Compared to the preceding week, today’s activity shows a distinct shift in sentiment. The 24-hour buy ratio of 43.0% is 8.7 percentage points lower than the 7-day average of 51.6%, indicating a notable drop in buyer dominance. Trading volume is also subdued, sitting at 0.65 times the weekly average. While the price rose 9.9% over the eight-day period, the current day’s volume delta of -$291,158 contrasts with the week’s total positive delta of +$234,529. This suggests that while the trend has been upward, the immediate flow is less aggressive than the weekly norm.