AgentVault

Private spending policy for AI agents paying x402 APIs. Built on Flare Confidential Compute

[AgentVault @agentvault_flr]

We won 1st place in Confidential Compute Apps at Flare Summer Signal

AgentVault lets agents pay x402 without holding a private key. FCC checks the
Owner’s private rules and signs only what passes

See you on mainnet ☀️

[Flare Devs @FlareDevHub]

The results are in. ☀️

Meet the Flare Summer Signal winners.

Interoperable Asset Products

🥇 Remnara Confidential Payouts · $4,000
XRPL inheritance payouts where Flare Confidential Compute signs only after on-chain release conditions are met.
https://t.co/myUjSfObaz

🥈 Astryum · $2,000
An XRP-first DeFi interface combining Flare Smart Accounts, FAssets and FTSO to simplify access to Flare DeFi.
https://t.co/qRUaUGKoBR

Confidential Compute Apps

🥇 AgentVault · $4,000
Policy-controlled x402 payments where Flare Confidential Compute privately evaluates spending rules and signs only approved agent payments.
https://t.co/OzIAbLRRnB

🥈 UMBRA · $2,000
A private FAssets dark pool using zero-knowledge proofs and on-chain encryption to hide sensitive trading data while keeping settlement verifiable.
https://t.co/haNbaRcnVL

Four very different products, built around the same idea: expanding what developers can make possible with XRP, interoperable assets and confidential compute on Flare.

Congratulations to all four teams. 🔥

[AgentVault @agentvault_flr]

@itzbanknotez Yes

[AgentVault @agentvault_flr]

@AlphaOracle1 Thanks 🙏

[AgentVault @agentvault_flr]

@BTtaylormade Thank you

[AgentVault @agentvault_flr]

We won 1st place in Confidential Compute Apps at Flare Summer Signal

AgentVault lets agents pay x402 without holding a private key. FCC checks the
Owner’s private rules and signs only what passes

See you on mainnet ☀️

[Flare Devs @FlareDevHub]

The results are in. ☀️

Meet the Flare Summer Signal winners.

Interoperable Asset Products

🥇 Remnara Confidential Payouts · $4,000
XRPL inheritance payouts where Flare Confidential Compute signs only after on-chain release conditions are met.
https://t.co/myUjSfObaz

🥈 Astryum · $2,000
An XRP-first DeFi interface combining Flare Smart Accounts, FAssets and FTSO to simplify access to Flare DeFi.
https://t.co/qRUaUGKoBR

Confidential Compute Apps

🥇 AgentVault · $4,000
Policy-controlled x402 payments where Flare Confidential Compute privately evaluates spending rules and signs only approved agent payments.
https://t.co/OzIAbLRRnB

🥈 UMBRA · $2,000
A private FAssets dark pool using zero-knowledge proofs and on-chain encryption to hide sensitive trading data while keeping settlement verifiable.
https://t.co/haNbaRcnVL

Four very different products, built around the same idea: expanding what developers can make possible with XRP, interoperable assets and confidential compute on Flare.

Congratulations to all four teams. 🔥

[AgentVault @agentvault_flr]

@FlareDevHub @FlareNetworks Wow thank you so much! Looking forward to bringing this to mainnet!

[AgentVault @agentvault_flr]

We built the hard part first:

Owner-controlled funds, private rules through FCC, and standard x402 settlement

Next, make it easy to use

1. A hosted AgentVault with web-based policy controls for simple interaction

2. A small fee applied to AgentVault approved payments

[AgentVault @agentvault_flr]

Agent → Credential request → Flare FCC policy check → EIP-3009 authorization → EIP-1271 Vault verification → x402 settlement

The Agent NEVER receives the private key

[Banknotez ☀️ @itzbanknotez]

AgentVault puts the spending decision between the agent and the Vault

Where it belongs

[AgentVault @agentvault_flr]

The agent tries to pay. Two things happen at once

🤖Agent sees: DECLINED
👨‍💻Policy owner sees the decrypted reason

Same event, two completely different views on

The agent can't reason around policy it never gets to read

@FlareNetworks @FlareDevHub

[AgentVault @agentvault_flr]

> agent asks to pay x402
> owner-set policy says no
> agent gets declined by AgentVault
> owner sees why

Your agent never held a private key, the agent couldn’t work its way around your policy

Complete control over your agentic spending on @FlareNetworks @FlareDevHub

[AgentVault @agentvault_flr]

Almost done… just testing some final policies

[████████████░░░] 90%

Thanks @FlareDevHub @fassko for the x402 endpoints

[AgentVault @agentvault_flr]

Agent Vault settled its first live payments on Coston2

An agent paid a real x402 endpoint 3 times

0.10 USDT0 each

On the 4th attempt, it would’ve crossed the 0.35 hourly budget

The enclave, evaluating a private policy the Owner set & only the owner can ever see, declined it

[Banknotez ☀️ @itzbanknotez]

“agents will generate volume” is doing a lot of work in this thread.

volume requires someone to actually let the agent spend, safely, at machine frequency, without a human clicking approve every time

that’s exactly the gap @agentvault_flr is closing on @FlareNetworks. the agent gets a budget & guardrails that run privately inside FCC

if this double exponential is real, someone has to build the part that lets the agents actually pay in a safe and predictable manner

[AgentVault @agentvault_flr]

Pick what matters most to you

[AgentVault @agentvault_flr]

Three paid. One blocked.

Agent never saw the key, or the policy

Learn more: https://t.co/oK2Dee7bmk