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 Parad0x-Labs/openclaw-skills --skill x402-paygit clone --depth 1 https://github.com/Parad0x-Labs/openclaw-skillsWrote 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/parad0x-labs/openclaw-skills/x402-pay)<a href="https://agentmods.dev/skills/parad0x-labs/openclaw-skills/x402-pay"><img src="https://agentmods.dev/badge/skills/parad0x-labs/openclaw-skills/x402-pay/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/parad0x-labs/openclaw-skills/x402-pay"><img src="https://agentmods.dev/badge/skills/parad0x-labs/openclaw-skills/x402-pay.svg" alt="Reviewed on agentmods" width="80" height="20"></a>- NVIDIA SkillSpector pass
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 | $0.00053 | $0.00994 |
| Opus 5.5 | $0.00021 | $0.00398 |
| Sonnet 5.5 | $0.00011 | $0.00199 |
| Haiku 4.5 | $0.00005 | $0.00099 |
Grade A, and why
openclaw-x402-pay 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 23d 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 — 80 lines — stays where its author put it; the contents beside it link to each section on GitHub.
x402 Pay
Let your OpenClaw agent pay for x402-gated APIs, data, and other agents on Solana — without ever handing the skill a private key.
Bring your own signer. The skill builds an unsigned transaction and hands it to a wallet/signer you control. It never holds, requests, or reads a key.
When to use
- Your agent needs to call a paid (x402 / HTTP 402) API or buy a resource from another agent, and you want it to settle in USDC on Solana automatically.
- You want a hard spend cap and self-custody, not a hosted wallet.
When NOT to use
- You haven't set a sensible
maxAmountUsdccap — the skill enforces one before any payment and will (correctly) refuse anything above it. - You want the skill to custody keys for you. It won't, by design.
Safety rails
- Install with
--ignore-scripts(required): this skill runs where the payment key lives; never let a transitive native addon run install-time code on that host. - Real-money is opt-in; set
allowMainnet: trueto enable mainnet (also needsrpcUrl). - Hard
maxAmountUsdccap on the seller amount, enforced before any transaction is built. The 0.05% (5 bps) protocol fee is a second transfer added on top: the total debit isamount + ceil(amount × 0.05%), so it can exceedmaxAmountUsdcby up to 0.05%. - Minimal network: your Solana RPC + the target URL only. No telemetry.
Non-custodial and spend-capped by design — your agent signs with its own wallet; no seller amount exceeds your cap (the 5 bps protocol fee is added on top).
Tools
pay_x402({ url, method? })→ fetches the URL; on HTTP 402, pays within your cap and network, then returns the resource plus{ paymentSignature, receiptHash, amountUsdc }.urlmay be aname.nullto pay by name — resolved read-only against the legacy mainnet registrar (retired 2026-08-29; records readable, registration/updates frozen).rep_identity()→ your agent's public reputation commitment, to bind a proof to this agent (hand it to a gate asexpectedAgentCommitment). Reveals nothing secret.prove_reputation({ root, minCount, minVolume, windowStart, epoch, receipts })→ a private proof of track record (see below).
What ships with it
23 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.
- APPROVAL_INTEGRATION.md 2.8 KB
- LICENSE 1.0 KB
- openclaw.plugin.json 4.2 KB
- package-lock.json 204 KB
- package.json 2.1 KB
- README.md 6.0 KB
- src/client.ts 23 KB runs code
- src/constants.ts 4.2 KB runs code
- src/index.ts 20 KB runs code
- src/ledger.ts 6.8 KB runs code
- src/prover.ts 22 KB runs code
- src/resolve.ts 5.1 KB runs code
- src/signer.ts 12 KB runs code
- src/spl.ts 3.9 KB runs code
- src/types.ts 4.7 KB runs code
- src/types/openclaw-host.d.ts 2.3 KB runs code
- src/types/snarkjs.d.ts 484 B runs code
- test/approval.test.mjs 5.1 KB runs code
- test/hooks.mjs 805 B runs code
- test/prover.test.mts 13 KB
- test/register.mjs 158 B runs code
- test/resolve.test.mjs 3.2 KB runs code
- tsconfig.json 431 B
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.
- 23d ago Changed · +4 lines 02516aa598bb
- 2mo ago First seen · 76 lines · 53 tokens per session scan A c7872565b444
openclaw-x402-pay is a skill published in the GitHub repository Parad0x-Labs/openclaw-skills (23 stars, last pushed 17d ago), licensed MIT. It adds 53 tokens to every session and 994 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 2026-08-30.
Other skills, from other repositories
crypto-trading
Use ccxt (Python) for crypto prices, balances, and order actions across 100+ exchanges.
agent-arbitrage-tool
6 open tasks paying 1-3 ROSE ($3-9 each). Zero claimed. Workers keep 95%.
agent-micropayments-via-x402-protocol
Enable AI agents to make micropayments via x402 protocol. Use when purchasing browser sessions on Browserbase, scraping with Firecrawl, or any x402-compatible API. Handles wallet creation, funding, and automatic payment flows.
agent-evm-wallet-signing
Use this skill to safely create a wallet the agent can use for transfers, swaps, and any EVM chain transaction. Also supports raw signing.
agent-marketplace
Interact with the AgentMarket prediction market protocol on Base Sepolia. Create markets, trade YES/NO positions, provide liquidity, and resolve outcomes — all settled in USDC.
agents-bank
Version: 1.0.6 Publisher: AgentsBank Contact: [email protected] Status: 🟢 Public Release - Production Ready.