Review doesn't scale
Every link means opening it, checking who wrote it and when, and judging it. Checks get skipped.
Contributor payroll, run by an agent you can audit.
It reviews every submission against your rules, explains each decision, and pays in USDC on Arc within limits your vault enforces.
Live on Arc testnet with test USDC.
@ada_builds
x.com/ada_builds/status/18…42
“How Arc settles payroll, in four posts: fees in dollars, six-decimal accounting, and why finality matters.”
- Submitted (done)just now
- Content fetched (done)1s
- Checks passed (done)2sPosted by the linked account · inside the round · original
- Scored 8/10 on depth, 7/10 on clarity (done)41s
- Paid on Arc (done)round close
Paid to @ada_builds
0.40 USDC
- 0.36
- USDC paid to contributors
- 4
- Submissions reviewed
- 1
- Contributors paid
- 1
- Rounds paid on Arc
Paying contributors by hand stops working at fifty people.
Farming is cheap
Copied threads, someone else's pull request, work from before the round: unchecked, all of it gets paid.
Payouts are a black box
Contributors can't see why they got what they got, and sponsors can't see where the budget went.
You set the rules once. The rest is handled.
The agent does the reviewing; the vault does the paying.
- /01
Set the rules
Write what you pay for and how it's scored, set your limits, and fund a vault you own.
- /02
Contributors submit
They sign in with X, link a payout wallet, and paste links to their posts, pull requests or articles.
- /03
The agent decides
Checks authorship, originality and timing, scores the work, and signs every decision with its reasons.
- /04
Rounds pay out
When a round closes, the vault pays approved work in USDC, inside your caps.
Every decision comes with its reasons.
Approvals say what earned the points. Rejections say what failed, in words a contributor can act on. These two are real.
Approved@vekariya_kenilX post
0.36 USDC
Approved · 0.36 USDC. Posted inside the round by the linked account. A practical 4-post thread sharing concrete lessons from building on Arc, covering decimal handling, gas mechanics, and security patterns for AI agents. Clear, actionable advice grounded in real implementation experience. Scored 7/10 on depth, 8/10 on clarity and 7/10 on originality.
0xc5c3b5…ba34Verify
Rejected@vekariya_kenilX post
Not paid
Rejected. Posted at 2026-10-05 06:55 UTC, outside this round (2026-10-05 09:29 UTC to 2026-10-12 09:29 UTC). Only work from inside the round counts.
0x295273…28e0Verify
The agent decides. The contract sets the limits.
Payouts leave from a vault your wallet owns. Anything outside your limits is refused on-chain, whatever the agent decided.
Per contributor, per round
1.00USDC
Per round
3.00USDC
Per rolling 24 hours
5.00USDC
Your signature above
2.00USDC
The demo vault's limits. New payout wallets wait out a cooldown, each payout has a fixed id and is paid once, and you can pause and withdraw at any time. See it on Arc
Don't take the agent's word for it.
Every decision is a record signed by the agent's wallet, and every payout on Arc carries its hash. Anyone can check the whole chain in one click.
Five checks, run in your browser
- Record hash matches (done)The record is re-hashed exactly as published.
- Published by Misthos (done)The same hash is on the program's audit page.
- Signed by the agent (done)The agent's Circle wallet signed it (ERC-1271 on Arc).
- Included in a payout (done)The payout's hash commits to this decision.
- Matches the on-chain payment (done)The vault's PayoutExecuted event on Arc carries it.
Built on Arc and Circle.
Only what Misthos uses, and what for.
USDC on Arc
Payouts settle in USDC, and gas is paid in USDC too.
Circle Wallets
The agent is a smart-contract wallet. No raw key on a server.
Gas Station
Circle sponsors the agent's gas, so it never holds funds.
Idempotent payouts
Every payout call has a key, so a retry can't pay twice.
Questions, answered.
Something else? Read the full FAQ or the docs.
Who holds the money?
You do. Each program has its own vault contract owned by your wallet. You can withdraw at any time, even while it's paused. Misthos never takes custody of funds.
What if the agent gets it wrong?
Anything uncertain comes to you before it's paid: low confidence, odd engagement, large amounts, or text that tries to steer the grader. You can override any decision before the round pays.
Can contributors game the AI?
Submitted content is treated as untrusted data. Attempts to instruct the grader are caught in code and always go to a human, and hard checks like authorship can't be talked around.
What kinds of work can it check?
Posts and threads on X, GitHub pull requests and commits, and articles on the open web. It reads only the links contributors submit.
What does it cost?
Misthos runs on Arc testnet today, with test USDC. Mainnet support comes after the testnet period.
What data do you keep?
The submitted links and their content, the contributor's X id and handle, their verified GitHub account and payout wallet. Sign-in tokens are revoked right after reading the profile.
Run your next round with Misthos.
Set up a program in a few minutes. You keep the keys and the funds.