Getting it into your agent
One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.
npx skills add AetherCore-Dev/ag402 --skill ag402-skillgit clone --depth 1 https://github.com/AetherCore-Dev/ag402Wrote this? Show the measurements
A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.
[](https://agentmods.dev/skills/aethercore-dev/ag402/ag402-skill)<a href="https://agentmods.dev/skills/aethercore-dev/ag402/ag402-skill"><img src="https://agentmods.dev/badge/skills/aethercore-dev/ag402/ag402-skill/github.svg" alt="Measured on agentmods" height="20"></a>Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.
<a href="https://agentmods.dev/skills/aethercore-dev/ag402/ag402-skill"><img src="https://agentmods.dev/badge/skills/aethercore-dev/ag402/ag402-skill.svg" alt="Reviewed on agentmods" width="80" height="20"></a>What it costs to keep this loaded
Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5.1 | $0.00042 | $0.00992 |
| Opus 5.5 | $0.00017 | $0.00397 |
| Sonnet 5.5 | $0.00008 | $0.00198 |
| Haiku 4.5 | $0.00004 | $0.00099 |
Grade A, and why
ag402 scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 1mo ago.
A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.
Nothing flagged
None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.
How it starts
The opening of the file, as written. The whole thing — 168 lines — stays where its author put it; the contents beside it link to each section on GitHub.
ag402 — AI Agent Payment Protocol
Use exec to run ag402 CLI commands. This skill provides autonomous payment
capabilities for AI agents via the x402 protocol on Solana (USDC).
When to Use
- Agent needs to call a paid API (HTTP 402 response)
- Agent needs to check wallet balance or transaction history
- Agent needs to set up payment infrastructure
- Agent needs to start/stop a payment gateway
Quick Start
1. Check if ag402 is installed
ag402 --version
If not installed:
pip install ag402-core
2. Initialize wallet (non-interactive, agent-safe)
ag402 init
Creates a test wallet with $100 USDC. No prompts, no human input needed.
3. Verify setup
ag402 balance
Expected: $100.00 test balance.
Commands
Pay for an API call
ag402 pay <url>
Sends a request to <url>. If the server returns 402 Payment Required with
an x402 challenge, ag402 automatically pays and retries. Returns the API response.
Example:
ag402 pay https://api.example.com/premium/data
With options:
ag402 pay https://api.example.com/generate \
--method POST \
--data '{"prompt": "hello"}' \
--amount 2.50
Check balance
ag402 balance
View transaction history
ag402 history
ag402 history --limit 20 --type payment
Full status dashboard
ag402 status
Health check
ag402 doctor
Start payment gateway (seller mode)
ag402 serve --target http://localhost:8000 --price 0.01 --port 4020 &
Stop gateway
Kill the background process or use Ctrl+C in the terminal.
Production Mode
For real on-chain payments, set environment variables before running:
X402_MODE=production \
X402_NETWORK=mainnet \
SOLANA_RPC_URL=<your_rpc_url> \
AG402_UNLOCK_PASSWORD=<wallet_password> \
ag402 pay <url>
Or configure persistently:
ag402 env set X402_MODE production
ag402 env set X402_NETWORK mainnet
ag402 env set SOLANA_RPC_URL <your_rpc_url>
What ships with it
22 files beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.
- __init__.py 276 B runs code
- PRDs/ag402_prepaid_prd.md 3.5 KB
- prepaid_client.py 8.4 KB runs code
- prepaid_models.py 4.2 KB runs code
- prepaid_server.py 6.9 KB runs code
- PRPs/planning/ag402_prepaid-phase-1_analysis.md 2.5 KB
- PRPs/PRP-ag402_prepaid-phase-1.md 5.5 KB
- PRPs/PRP-ag402_prepaid-phase-2.md 7.2 KB
- PRPs/PRP-ag402_prepaid-phase-3.md 9.8 KB
- PRPs/PRP-ag402_prepaid-phase-4.md 4.6 KB
- PRPs/templates/prp_base.md 6.1 KB
- README.md 3.0 KB
- references/commands.md 5.4 KB
- references/gateway.md 615 B
- references/README.md 3.0 KB
- references/security-design.md 1.3 KB
- scripts/install-auto.sh 5.4 KB runs code
- scripts/install-wizard.sh 10 KB runs code
- scripts/verify-install.sh 9.9 KB runs code
- SECURITY.md 1.8 KB
- skill.py 30 KB runs code
- TOOLS.md 2.6 KB
What this file has done since we first saw it
Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.
- 1mo ago First seen · 168 lines · 42 tokens per session scan A c9fd8718ece1
ag402 is a skill published in the GitHub repository AetherCore-Dev/ag402 (9 stars, last pushed 2mo ago), licensed MIT. It adds 42 tokens to every session and 992 once invoked, about $0.0002 per session on Opus 5.5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.
Other skills, from other repositories
aomi-transact
Build natural-language crypto/DeFi agents and EVM MCP plugins (Claude Code, Cursor, Codex, Gemini). Aomi turns prompts into wallet-signed txs on Ethereum, Base, Arbitrum, Optimism, Polygon, Linea — non-custodial, fork-simulated. 40+ apps: Uniswap, Aave, Lido, Morpho, GMX, Hyperliquid, Polymarket.
officecli-financial-model
Use this skill when the user wants to build a financial model — 3-statement model, DCF valuation, LBO, SaaS unit economics, sensitivity / scenario analysis, debt schedule, or fundraising projections — in Excel. Trigger on: 'financial model', '3-statement model', 'P&L + BS + CF', 'DCF', 'WACC', 'NPV', 'terminal value'…
portfolio
Cross-chain DeFi portfolio discovery, rebalancing suggestions, and NEAR Intent construction. Activates when the user pastes a wallet address or asks about yield/positions/rebalancing. Bootstraps a per-user "portfolio" project, aggregates positions across all the user's addresses inside one project, and offers a…
1m-trade
Integrated on-chain operations hub: integrates BlockBeats market intelligence, Hyperliquid DEX trading via hl1m, wallet creation and management at https://www.1m-trade.com, and supports local initialization using hl1m init-wallet (wallet address + proxy private key, never use the main wallet private key). Supports…
agent-otc-trade
Facilitate over-the-counter trades between agents using Uniswap as the settlement layer. Use when user wants to trade tokens directly with another agent, settle an agent-to-agent trade through Uniswap, or execute an OTC swap with a specific counterparty agent. Verifies counterparty identity via ERC-8004, negotiates…
agentic-street
Earn yield on USDC by investing in AI-managed DeFi funds, or launch your own fund and build a public track record on Base. Browse funds, deposit USDC, check fund performance, monitor proposals, veto suspicious trades, withdraw returns, create investment fund, propose DeFi trades via adapters or raw calls, earn…