HOW IT WORKSv1.0last updated 24 apr 2026

A market for the things Claude does best.

Skills, agents, MCPs, repos, prompts, workflows — installed in one click, paid for in stablecoins, signed by their authors. No app store, no escrow, no chargebacks.

001 / FOUR STEPS

From browse to running, in under a minute.

No accounts. The wallet you connect is the account. Pay once, install once, run anywhere your Claude does.

STEP · 01

Connect a wallet.

Any EVM wallet on BASE, Arbitrum, OP, or Polygon. Sign once with your address — no email, no password, no profile.

~ 5 sec
STEP · 02

Pick the asset.

Browse by type or search by capability. Every listing shows scan score, signed checksum, version, and the seller's payout history.

browse → listing
STEP · 03

Pay in stablecoins.

One-shot purchase in USDC/USDT, or per-call billing via x402. Funds settle to the seller in the same block. No platform escrow.

on-chain · final
STEP · 04

Install & run.

Copy the install line, drop it into Claude Code or Desktop. The asset verifies its own signature and unpacks. Done.

npx · uvx · claude install
// install a paid skill — single command
$ claude install @ferris.eth/rust-audit-pro --receipt 0x4f8a…b21c
↓ resolving listing on BASE… ok
↓ verifying signature (ed25519)… ok
↓ unpacking skills/rust-audit-pro/… ok
installed v2.4.0 · scan 98 · 412 sales
002 / PAYMENT RAILS

Two prices, one wallet.

Buy outright for things you'll run forever. Or pay per call with x402 — the HTTP standard for stablecoin micropayments — when an agent meters itself by usage.

A · ONE-SHOT PURCHASE
01Buyer signs EIP-712 intent $28 USDC
02 Marketplace contract on BASE settles
03Seller receives 97%, treasury 3%
04Receipt NFT minted to buyer wallet
05 Asset signed download URL returned
B · x402 METERED CALLS
01Agent calls endpoint without auth
02 Server replies HTTP 402 + price
03Wallet auto-signs $0.004 USDC
04 Retry with payment header
05200 OK · response streamed
003 / TRUST MODEL

Three things we do so you don't have to.

Code that runs in your Claude has read access to your context. We treat that seriously — every asset is scanned, signed, and pinned by content hash.

SCN

Static + behavioural scanning.

Each upload runs through capability detection (file system, network, secrets), ast lint, prompt-injection sniffer, and a sandboxed dry-run on canary contexts. Score is published.

· capabilities · diff vs last version
· network egress whitelist
· prompt injection harness · 240 cases
SIG

Author-signed, content-pinned.

Sellers sign every release with the wallet that owns the listing. Installs verify the signature against the on-chain manifest and pin the artifact by sha-256. No silent updates.

· ed25519 · seller-controlled key
· artifact = sha256(tarball)
· upgrades require re-purchase or opt-in
REV

Reviews tied to wallets that bought.

Only wallets with a settled receipt for this exact version can review. Sellers can reply but cannot delete. The review weight decays with version drift so old praise doesn't carry stale code.

· proof-of-purchase required
· version-scoped weighting
· no review buybacks · receipts on-chain
004 / FEES

A line-by-line on a $28 sale.

No hidden splits, no FX spreads, no withdrawal threshold. Settlement is on-chain and final.

PRICEList price · rust-audit-pro v2.4.0$28.00
FEEMarketplace fee · 3.0% · funds scanning, infra, treasury−$0.84
GASBASE settlement · ~0.0001 ETH · paid by buyer~$0.003
FXUSDC → seller payout token · USDC same-token$0.00
PAYOUTSeller receives · settled in same block$27.16
x402 metered calls follow the same 3% split, applied per-call. Subscriptions settle weekly via streaming-payment contract. Sellers can opt into fiat off-ramp via partner in 38 jurisdictions.
005 / FAQ

Questions we get a lot.

Q · 01

Do I need crypto experience to use this?

You need a wallet. Coinbase Wallet, Rainbow, MetaMask all work. If you can install a browser extension and fund it with $20 of USDC from any exchange, you're set. No gas-token juggling — gas on BASE is fractions of a cent and we sponsor it for first-time buyers.

Q · 02

What happens if a listing turns out malicious?

The listing is delisted within an hour, every wallet that holds a receipt gets refunded from the seller's bond, and the seller's wallet is flagged across all chains we index. We can't claw back code already on your machine — but we can tell you, immediately, that you should remove it.

Q · 03

Can I sell anonymously?

Yes. Your wallet address is your identity. You can attach a handle, an ENS name, a GitHub, or nothing. Some buyers filter for verified sellers; many do not. The reputation that matters is on-chain: sales count, refund rate, dispute rate.

Q · 04

Is this affiliated with Anthropic?

No. We build on top of Claude's open extension formats — Skills, MCP, agent specs — but we are an independent marketplace. Listings are vetted by us, not by Anthropic.

Q · 05

Refunds?

Within 24 hours, no questions, automatic via the receipt contract. After that, only if the listing is delisted for cause. x402 calls are non-refundable individually but a malformed response counts as a failed call and isn't billed.

Ready to ship something?

Open a listing in five minutes. We'll scan it, sign it, list it, and route the payout to your wallet on every sale.

Start a listing → Read the docs no email · no signup · 3% fee · USDC payout