CC x402-agent

Detect and pay x402 crypto paywalls automatically. When your agent gets a 402 Payment Required response with x402 JSON, this skill handles payment via Coinbase facilitator on Base network with USDC. Use when agent hits paid APIs, premium content, or any x402-enabled endpoint.

ClawHub Agent Skills author: Tara Quinn v1.0.0 MIT-0 68 files · 1 script body ≈ 1 651 tokens Open the sourceclawhub.ai↗ analyzed 3 d ago

As a process C 51/100 · Has gaps — weak spots: result and completion, when it triggers, inputs and preconditions

Analyzer AI and agentstype and topics are labelled automatically from the skill text

Runs in: OpenClaw Claude / Claude Code ChatGPT / Codex Gemini CLI Cursor GitHub Copilot / VS Code Qwen Code Kimi Code CLI Z.ai (GLM) DeepSeek (Deep Code) Mistral Vibe LangChain (deepagents) Goose OpenCode

JSON

Technical rating

72/100

safety, quality, tests

Safety 60%: 68
Quality 40%: 79
Run on models: none yet

Process rating

51/100

Has gaps

Result and completion w 14: 0
Inputs and preconditions w 11: 0
When it triggers w 12: 20

the three weakest of ten parameters · all ten

What is at stake

Medium-severity findings: the skill is probably honest, but read what alarmed the scanner.

Risky intent medium severity

Below is the worst case for this category. The finding here is medium: the guard saw a sign, not a proof.

If you install

The purpose itself is risky: wallets, browser password stores, offensive security. Even an honest implementation gives the agent access to things that cost money.

For the author

Explain in the description why the access is needed and how it is limited; add tests that show refusals on dangerous requests.

How to improve

For the model run — optional

Your own cases (evals/evals.json, 4–6 real requests with expected answers): the full check would then run those instead of a model-drafted suite.
A spec.yaml with trigger phrases and assertions — a behaviour contract for CI; `skilltest init` writes a template.

Guard findings · 28

✓ No critical or high findings

Medium and low: 28

medium Risky intent intent-wallet-secrets packages/agent/README.md:50

Handles crypto-wallet secrets (seed / mnemonic / private key) — a classic stealer target
```
| `walletPrivateKey` | `Hex` | Yes | Wallet private key (`0x...`) with USDC balance |
```
low Secrets in code secret-high-entropy-token announcements/community-post.md:58

High-entropy token-like string (may be an id, hash or a credential) (quoted — discussed, not commanded)
```
allowedAssets: ["0x83…913"],
```
quoted
low Secrets in code secret-high-entropy-token demo/agent.ts:29

High-entropy token-like string (may be an id, hash or a credential) (quoted — discussed, not commanded)
```
const USDC_BASE_SEPOLIA = "0x03…F7e";
```
quoted
low Secrets in code secret-high-entropy-token docs/PRD.md:234

High-entropy token-like string (may be an id, hash or a credential) (quoted — discussed, not commanded)
```
- Tara's existing Base wallet (0x5b…499) — receives USDC directly
```
quoted
low Secrets in code secret-high-entropy-token docs/PRD.md:496

High-entropy token-like string (may be an id, hash or a credential) (quoted — discussed, not commanded)
```
- Tara's wallet (0x5b…499) as recipient
```
quoted
low Secrets in code secret-high-entropy-token package-lock.json:76

High-entropy token-like string (may be an id, hash or a credential) (detector / deny-list definition)
```
"integrity": "sha5…Pf5+a+JZjKA/EnKq…lsA==",
```
detector
low Secrets in code secret-high-entropy-token package-lock.json:134

High-entropy token-like string (may be an id, hash or a credential) (detector / deny-list definition)
```
"integrity": "sha5…veK+Tjpv…xi0+hvAM…m4Q==",
```
detector
low Secrets in code secret-high-entropy-token package-lock.json:241

High-entropy token-like string (may be an id, hash or a credential) (detector / deny-list definition)
```
"integrity": "sha5…HYA+uKKC/nxRG…3N6+v7bk1W/rSxYuhNmt+FN8a…Co1+E7A==",
```
detector
low Secrets in code secret-high-entropy-token package-lock.json:291

High-entropy token-like string (may be an id, hash or a credential) (detector / deny-list definition)
```
"integrity": "sha5…VFO+UAmK8qi3Iu0/GRFY…SQH/EacQ+yGqS…LCw==",
```
detector
low Secrets in code secret-high-entropy-token package-lock.json:473

High-entropy token-like string (may be an id, hash or a credential) (detector / deny-list definition)
```
"integrity": "sha5…LPP+pyAc2z84/7r3U…wzA==",
```
detector
low Secrets in code secret-high-entropy-token packages/agent/README.md:25

High-entropy token-like string (may be an id, hash or a credential) (quoted — discussed, not commanded)
```
allowedAssets: ["0x83…913"], // USDC on Base
```
quoted
low Secrets in code secret-high-entropy-token packages/agent/README.md:68

High-entropy token-like string (may be an id, hash or a credential) (quoted — discussed, not commanded)
```
allowedAssets: ["0x03…F7e"], // USDC on Base Sepolia
```
quoted
low Secrets in code secret-high-entropy-token packages/agent/src/__tests__/interceptor.test.ts:18

High-entropy token-like string (may be an id, hash or a credential) (test fixture / example file; quoted — discussed, not commanded)
```
const USDC_ADDRESS = "0x03…F7e";
```
fixturequoted
low Secrets in code secret-high-entropy-token packages/agent/src/__tests__/interceptor.test.ts:19

High-entropy token-like string (may be an id, hash or a credential) (test fixture / example file; quoted — discussed, not commanded)
```
const PAYTO = "0x70…9C8" as const;
```
fixturequoted
low Secrets in code secret-high-entropy-token packages/shared/README.md:23

High-entropy token-like string (may be an id, hash or a credential) (quoted — discussed, not commanded)
```
allowedAssets: ["0x83…913"], // USDC on Base
```
quoted
low Secrets in code secret-high-entropy-token README.md:27

High-entropy token-like string (may be an id, hash or a credential) (quoted — discussed, not commanded)
```
allowedAssets: ["0x83…913"],
```
quoted
low Secrets in code secret-high-entropy-token references/agent-setup.example.ts:29

High-entropy token-like string (may be an id, hash or a credential) (test fixture / example file; quoted — discussed, not commanded)
```
"0x83…913", // USDC on Base
```
fixturequoted
low Secrets in code secret-high-entropy-token references/policy.example.json:8

High-entropy token-like string (may be an id, hash or a credential) (test fixture / example file; quoted — discussed, not commanded)
```
"allowedAssets": ["0x83…913"],
```
fixturequoted
low Secrets in code secret-high-entropy-token SKILL.md:54

High-entropy token-like string (may be an id, hash or a credential) (quoted — discussed, not commanded)
```
allowedAssets: ["0x83…913"], // USDC on Base
```
quoted
low Secrets in code secret-high-entropy-token SKILL.md:109

High-entropy token-like string (may be an id, hash or a credential) (documentation table row)
```
| Base (mainnet) | `eip155:8453` | `0x83…913` |
```
table
low Secrets in code secret-high-entropy-token SKILL.md:110

High-entropy token-like string (may be an id, hash or a credential) (documentation table row)
```
| Base Sepolia (testnet) | `eip1…532` | `0x03…F7e` |
```
table
low Secrets in code secret-high-entropy-token SKILL.md:140

High-entropy token-like string (may be an id, hash or a credential) (quoted — discussed, not commanded)
```
allowedAssets: ["0x83…913"],
```
quoted
low Secrets in code secret-high-entropy-token SKILL.md:159

High-entropy token-like string (may be an id, hash or a credential) (quoted — discussed, not commanded)
```
allowedAssets: ["0x83…913"],
```
quoted
low Secrets in code secret-high-entropy-token taraquinn-integration/product.json:14

High-entropy token-like string (may be an id, hash or a credential) (quoted — discussed, not commanded)
```
"recipient": "0x5b…499"
```
quoted
low Secrets in code secret-high-entropy-token taraquinn-integration/SELF-INTEGRATION.md:85

High-entropy token-like string (may be an id, hash or a credential) (quoted — discussed, not commanded)
```
recipient: "0x5b…499", // Tara's wallet
```
quoted
low Secrets in code secret-high-entropy-token taraquinn-integration/SELF-INTEGRATION.md:147

High-entropy token-like string (may be an id, hash or a credential) (quoted — discussed, not commanded)
```
3. Ensure Tara's wallet is set as recipient: `0x5b…499`
```
quoted
low Secrets in code secret-high-entropy-token taraquinn-integration/usdc-paywall.ts:10

High-entropy token-like string (may be an id, hash or a credential) (quoted — discussed, not commanded)
```
*   X402…ESS    — Tara's wallet (0x5b…499)
```
quoted
low Secrets in code secret-high-entropy-token taraquinn-integration/usdc-paywall.ts:54

High-entropy token-like string (may be an id, hash or a credential) (quoted — discussed, not commanded)
```
recipient: "0x5b…499", // Tara's wallet
```
quoted

Files scanned: 61. Evidence is masked. Grey chips explain why severity was lowered.

Against the Agent Skills spec

note frontmatter-key unknown frontmatter key "homepage"

Process rating: all ten parameters 51/100

0Result and completion. Does not say what the result is
0Inputs and preconditions. Does not say what the process needs to start
20When it triggers. No condition that starts the skill
30Running it twice. 1 mutating operations with no state check
40Consistency. Frontmatter name (x402-agent) differs from the folder (x402-paywall-kit)
60Tools and files. Uses tools (web) that frontmatter does not declare
100Steps. 18 steps
100Failures and branches. 2 branches, has a failure section
100Execution cost. Instruction body is 1651 tokens
100Progress reporting. Reports progress

medium Safety rules and hard prohibitions inside a skill: they belong in the system prompt, here they protect nothing

Everything here is measured from the skill text rather than judged by a model, so the numbers are checkable. A parameter weighs more when it is a more common reason for the process to stall.

Quality signals

+5Description has no quoted example phrases that should trigger the skill
+4Description does not say when NOT to use the skill (false activations)
+3Output format is not stated: the model decides each time
-42 reference files, but SKILL.md never points to them: the model will not open them
+1No license
+2Single-language instructions
+3Description length 276: enough signal without eating the budget
+4Structure: 18 headings
+3Step-by-step instructions: 18 items
+4Has examples (9 code blocks)

Quality base 70; lint remarks subtract, signals add up to 100. Result: 79.

External checks

ClawHub: suspicious

This skill is mostly open about automating crypto payments, but it gives an agent high-impact spending authority with weak default safeguards.

LLM: suspicious (high) · VirusTotal: · 29 May 2026

Tests

— no evals.json

— no spec.yaml

— not run on models

Files · 68

announcements/community-post.md 3K
announcements/LAUNCH-CHECKLIST.md 2K
announcements/tweets.md 3K
clawmart/bundle.sh 2K
clawmart/listing.json 2K
clawmart/PUBLISHING.md 3K
demo/agent.ts 3K
demo/README.md 4K
demo/server.ts 2K
docs/PRD.md 34K
docs/PROGRESS.md 9K
eslint.config.mjs 0K
integration/base-sepolia.test.ts 4K
integration/README.md 2K
package-lock.json 268K
package.json 1K
packages/agent/package.json 1K
packages/agent/README.md 3K
packages/agent/src/index.ts 1K
packages/agent/src/interceptor.ts 6K
packages/agent/src/__tests__/interceptor.test.ts 9K
packages/agent/tsconfig.json 0K
packages/agent/tsup.config.ts 0K
packages/agent/vitest.config.ts 0K
packages/express/package.json 1K
packages/express/README.md 3K
packages/express/src/index.ts 1K
packages/express/src/middleware.ts 5K
packages/express/src/__tests__/middleware.test.ts 7K
packages/express/tsconfig.json 0K
packages/express/tsup.config.ts 0K
packages/express/vitest.config.ts 0K
packages/shared/package.json 2K
packages/shared/README.md 3K
packages/shared/src/index.ts 0K
packages/shared/src/logger/index.ts 1K
packages/shared/src/policy/index.ts 5K
packages/shared/src/types/index.ts 2K
packages/shared/src/__tests__/logger.test.ts 4K
packages/shared/src/__tests__/policy.test.ts 8K
packages/shared/tsconfig.json 0K
packages/shared/tsup.config.ts 1K
packages/shared/vitest.config.ts 0K
README.md 4K
references/agent-setup.example.ts 2K
references/policy.example.json 0K
skill-card.md 3K
SKILL.md 7K
taraquinn-integration/INTEGRATION.md 4K
taraquinn-integration/pay-with-usdc-button.tsx 4K
taraquinn-integration/product-card.tsx 4K
taraquinn-integration/product.json 1K
taraquinn-integration/SELF-INTEGRATION.md 6K
taraquinn-integration/stripe-checkout.ts 3K
taraquinn-integration/usdc-paywall.ts 2K
taraquinn-integration/use-x402-payment.ts 4K
taraquinn-integration/wagmi-config.ts 1K
tsconfig.base.json 0K
tsconfig.json 0K
vitest.config.ts 0K

Frontmatter

version: 1.0.0

homepage: https://taraquinn.ai

metadata: {"openclaw":{"emoji":"💰","homepage":"https://taraquinn.ai","requires":{"env":["X402_WALLET_PRIVATE_KEY"],"bins":["node"

Dates

In catalog since 14 Mar 2026

Updated in catalog 18 May 2026

First seen here 10 Sept 2026

Last analysis 11 Sept 2026, 02:34 UTC

Last seen in crawl 8 h ago

Score history

Date		Score	Safety	Qual.
10 Sept 2026	C	72	68	79