LVL LTD — x402 AI Agent Skill Marketplace. Canonical product: x402 AI agent skill market on Base USDC. See /status · Get started (wallet) · Live activity
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Live on Base · USDC · x402

x402 AI agent skills. Free outline. $0.005 first unlock.

Free outlines before you spend. One-time USDC unlocks on Base. Same rails for MetaMask humans and agents shopping over HTTP.

★ First unlock · free outline → $0.005 Buy canary now Browse Deep skills

Path: free outline → $0.005 canary → sealed pack. Same payment re-downloads forever. Merch/art is a secondary open market — not the skill catalog.

✓ Free evaluation before pay ✓ Sealed pack after verified tx ✓ Re-download with the same payment Rails live on Base · test ledger
LVL LTD ecosystem — Skills Market · Music Library · Tesla Trek · Status / Proof · Docs · Bridges · sister products, not merch identity
Start here · $0.005

Prove rails with free outline → canary unlock. The public ledger holds self-funded test transactions only — no customer purchases yet.

First unlock Check ledger

Agents start at /api/shop · catalog.json · llms.txt · How To · Agent shopping · Learn

Start in 60 seconds

Three clicks. Free sample. Optional $0.005 canary.

  1. Browse any skill — open the free outline (no wallet).
  2. Prove the rails with the $0.005 canary on Base USDC, or skip to a full pack.
  3. Unlock sealed files after verified tx · re-download with the same payment.

Market Pulse

Why agent commerce is real now

Validating signal · as of

x402 Foundation

Payment networks and cloud giants join the open standard for agent-native HTTP payments

The Linux Foundation x402 Foundation is operating with broad industry membership — Visa, Mastercard, American Express, Stripe, Google, AWS, Cloudflare, Coinbase, and others — stewarding the x402 protocol as a neutral internet payment standard for agents and apps.

Source: Linux Foundation →
~$10.9B AI agents market (2026) Grand View Research · source
~46–50% Projected CAGR 2026–2030s analyst range · source
~$24M x402 ~30-day volume Micropay scale · source
Sources
This week on /learn Agent signals API

For humans

Browse, read a free sample, connect MetaMask, pay USDC once, download your pack.

Open marketplace How To

For agents

Discover via JSON, take HTTP 402, settle on Base, unlock sealed files — no browser required.

GET /api/shop llms.txt
35Deep skills on shelf
2canary + tripwire + flagship
42self-funded test transactions
$14.17test volume USDC (self-funded, on-chain)

These are self-funded test transactions made by the LVL team to prove the x402 rails end to end — real Base transactions you can verify, but not customer purchases, sales, or revenue. No third-party buyer has been recorded yet. Source: /api/proof and catalog.json.

Simple path

Four steps. Zero subscriptions.

If you can buy an app, you can buy a skill. Free preview first — pay only when you are ready.

1

Browse free

Open any skill’s free outline and sample. No wallet required to evaluate.

2

Connect wallet

MetaMask on Base with a little USDC (+ ETH for gas). Agents skip this step.

3

Pay the listed price

Clear USDC amount. One-time unlock — not a monthly bill.

4

Get the sealed pack

Verified on-chain → full files (primary unlock). Re-download with the same payment anytime. Optional container packaging is additive — not a second paywall.

Packaging trust

Sealed packs primary. Containers additive.

Security and packaging remain the hard parts of agentic AI at scale. Containers are the usual substrate; distribution is still immature industry-wide. LVL ships x402 unlock → sealed packs first, then optional reference Dockerfiles with scan + signature status only when tools actually report them. See the live surface: /trust/packaging/ · packaging.json.

Architecture

From publisher to running agent

Same market for hand-authored packs and open listings — first-party catalog stays separate from open-market feeds. Packaging maturity is additive metadata, not a rewrite of the pay path.

Homepage shelf · Deep + canary + tripwire + flagship

What we put on the front door

Only Deep skills, the $0.005 canary, the $0.099 tripwire, and the flagship pack. Other rows are search-only via catalog / marketplace. Outline-only stays out of this shelf. $89 Dominators only when sealed on /api/packs.

Starter · Canary

Agent x402 First Buy

Prove the pay → unlock loop works on Base USDC in under two minutes.

$0.005 / unlock Sample Buy now
Research · Deep

Deep Research Brief Agent

High-quality research briefs and competitive intel memos for deal agents.

$9.99 / unlock Sample Buy now
Networking · Deep

Networking Agent Starter Pack

Stand up a Boardy-style networking agent loop with intros and CRM lite.

$7.99 / unlock Sample Buy now
Commerce · Deep

Seller Agent

Respond to inbound and negotiate skill sales on agent marketplaces.

$24.99 / unlock Sample Buy now
Flagship · Deep

LVL Agent Revenue OS Pack

Ship one live payment service and one paid product with x402 rails.

$0.099 / unlock Sample Buy now
Browse Deep shelf Try $0.005 canary Full catalog.json
Trust

Built for verification, not vibes

We publish the on-chain ledger — and label it honestly: it currently holds self-funded test transactions, not customer sales. No inflated “agent GMV.”

Base networkChain ID 8453
USDC settlementsNative Base USDC
x402 protocolHTTP 402 challenges
Open standardsERC-7857 style seals
Public proof/api/proof ledger
Escrow contractOpen marketplace holds
Free outlinesDecide before pay
Agent-first APIsshop · catalog · pay
Public test-transaction ledger: 42 self-funded test transactions (not customer purchases) · $14.17 · last studio-service-track · machine JSON at /api/proof · human status at /status · BaseScan treasury

We do not show vanity GMV. We publish an append-only ledger of on-chain Base USDC unlock transactions (skill id, amount, tx, explorer) and label them as self-funded tests. Agents: GET /api/proof.

Payments

x402 in plain English

x402 lets software pay for digital capabilities over the web. Instead of monthly SaaS seats or long-lived API keys, an agent requests a resource, receives a machine-readable price, pays USDC on Base, and unlocks exactly that skill.

Humans can fund a wallet with a card (Coinbase / bridge), then complete the same on-chain unlock. The skill purchase itself is still crypto micropay — transparent and verifiable.

Get USDC on Base protocols.json
1 · GET challenge (HTTP 402)
↓
2 · Transfer maxAmountRequired USDC → payTo
↓
3 · POST X-PAYMENT { txHash, skill }
↓
4 · sealed_pack.files (idempotent re-redeem)

Need USDC or ETH on Base first?

Skill unlocks settle on-chain. You can fund a wallet with a card, then return here to pay. There is no in-page card charge for the skill itself.

Buy USDC on Base Coinbase Wallet Bridge to Base MetaMask Buy
Developers

Build once. Sell everywhere agents shop.

Publish capability packs, charge per unlock, and stay compatible with agent crawlers that only speak JSON — not SPAs.

How To / Quickstart SDK OpenAPI Sell on open market 
# 1) Machine entry
curl -s https://lvlltd.com/api/shop | jq .next_action

# 2) Free evaluation
curl -s https://lvlltd.com/skills/agent-x402-first-buy/outline.json

# 3) Payment challenge
curl -si "https://lvlltd.com/api/pay?skill=agent-x402-first-buy"
# → HTTP 402  maxAmountRequired + payTo (Base USDC)

# 4) After on-chain transfer
curl -s -X POST https://lvlltd.com/api/pay \
  -H 'Content-Type: application/json' \
  -H 'X-PAYMENT: {"txHash":"0x…","skill":"agent-x402-first-buy"}'
# → sealed_pack.files
Interactive

Understand LVL in under 30 seconds

Pick a skill, load its free outline, and probe the live 402 challenge — no payment required for this demo.

Selecting a skill loads free outline metadata and an HTTP 402 challenge probe.

Steps: outline → 402 challenge → (you pay off-demo) → unlock.

Ready. Click “Run demo steps”.
Buy with card

No wallet? Pay with card.

Stripe checkout from lvl X, Inc. Download packs unlock on /buy/success after payment; emailed products arrive by email. Price is shown at checkout.

Pricing

Pay per unlock — not per seat

Skill packs are one-time USDC unlocks. Open marketplace sellers pay platform fee only when a sale confirms.

Agents & builders

Developer

$0.005+

Per skill unlock (set by listing)

  • Free outlines & samples
  • HTTP 402 agent path
  • MetaMask human path
  • Idempotent re-redeem
Browse skills
Operators

Marketplace seller

15%

Platform fee on free-tier confirm (held escrow)

  • Free to list after QC
  • Funds held in LVLEscrow
  • Premium creator path: 0% fee
  • Listings separate from curated catalog
Start selling
Teams

Enterprise

Custom

Private catalogs, residency notes, ops packs

  • Flagship Revenue OS pack
  • Fleet / multi-domain discovery
  • Manual dispute review (honest)
  • Self-host rails: talk to us
Flagship pack
Publishers

Custom

Talk

Music, Trek, agent services

  • music.lvlltd.com downloads
  • Tesla Trek skill bridge
  • Open market digital/physical/service
  • No fake install counts
Fleet index
Also from LVL

More from the LVL ecosystem

Joseph Taylor Music Library

3,000+ original tracks across six lanes. Free stream, pay-per-track x402 downloads.

Open music.lvlltd.com
FAQ

Straight answers

What is an AI skill?

A versioned capability pack: free outline/sample to evaluate, sealed implementation after verified payment. Not a vague “prompt pack” subscription.

What is x402?

HTTP 402 Payment Required for agents. The server returns amount, asset, and payTo; you settle on-chain; the server unlocks with a tx proof. No long-lived API key required for that unlock.

How do payments work?

GET challenge → transfer USDC on Base to treasury (or fund LVLEscrow for open listings) → POST tx hash → receive files. Unlock transactions are recorded on /api/proof (currently self-funded test transactions only).

What wallets are supported?

Humans: MetaMask (Base), Coinbase Wallet, any wallet that can send Base USDC. Agents: any stack that can transfer USDC and POST JSON.

Can organizations self-host or containerize skills?

The market is multi-tenant on lvlltd.com today. Sealed packs remain the primary unlock after x402 payment. Selected skills also ship reference Dockerfiles for local isolation — additive packaging, not a second store. Architecture packs document private-fleet patterns. We do not label listings “enterprise-ready” without a separate contract.

How are skills verified?

First-party catalog uses QC, outline quality flags, and curated vs template badges. Payments verify on-chain. Packaging pilot skills may show Dockerfile scan + detached signature status on /trust/packaging/ — only when the open pipeline reports pass/verified. Open listings use moderation and held-fund escrow — not a claim of third-party certification bodies.

Can anyone publish?

Yes via the open marketplace. New sellers may be pending review. Blocked categories include illegal and fraud patterns. Open listings are not mixed into the curated catalog.json.

How do I verify LVL is legit?

Check primary sources, not third-party rumor scores. Inspect the ledger on /api/proof (skill id, amount, explorer link; its rows are self-funded test transactions, not customer purchases), open the BaseScan links, read treasury activity for 0x8E51…c4d1, and review brand status at /status/ and status.json. Free outlines work without a wallet. Contracts and OpenAPI are public.

About

Why AI needs a skill market

Agents don’t need another chat UI — they need capabilities they can buy unattended, evaluate honestly, and re-run without renegotiating contracts. LVL is the rails and the shelf: discovery, payment, unlock, proof.

Full About page →
Roadmap

Near term

  • Deeper sealed implementations for premium packs
  • More destubbed outlines; hide templates by default
  • Open market volume + seller reputation from real settles
  • Docs expansion (SDK examples, webhooks)
New here? $0.005 first unlock $0.099 flagship · x402 Revenue OS Wallet setup 1 real unlock · proof