opensea-tool-sdk
Build, register, and gate AI-callable tool endpoints using the OpenSea Tool Registry (ERC-8257) on Base. Scaffold HTTPS tools with JSON Schema interfaces, register them onchain, gate access via NFT ownership, subscriptions, trait gating, or x402 pay-per-call (USDC), and call gated tools. For querying OpenSea marketplace data use opensea-api instead.
76
96%
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Medium
Suggest reviewing before use
Security
1 medium severity finding. This skill can be installed but you should review these findings before use.
W009: Direct money access capability detected (payment gateways, crypto, banking).
What this means
The skill is specifically designed for direct financial operations, giving the agent the ability to move money or execute financial transactions — such as payment processing, cryptocurrency operations, banking integrations, or market order execution.
Why it was flagged
The skill explicitly implements pay-per-call and onchain payment/auth flows: x402 paywalls (USDC TransferWithAuthorization), EIP-3009 auth, CLI commands to "pay" and "auth" (which sign/send authorizations), and support for wallet providers/custodians (Privy/Fireblocks/Turnkey/Bankr/PRIVATE_KEY). It includes programmatic helpers like paidFetch/paidAuthenticatedFetch and createBankrAccount for using an HTTP custody API. These are specific financial execution features (signing/settling USDC payments and performing onchain transactions), not generic I/O, so it grants Direct Financial Execution Authority.
Low
Low-risk findings.
2 low severity findings. Worth noting, but not necessarily harmful.
W011: Third-party content exposure detected (indirect prompt injection risk).
What this means
The skill exposes the agent to untrusted, user-generated content from public third-party sources, creating a risk of indirect prompt injection. This includes browsing arbitrary URLs, reading social media posts or forum comments, and analyzing content from unknown websites.
Why it was flagged
The runtime workflow can read outsider-authored free text when the agent uses OpenSea REST tool discovery (e.g., `/api/v2/tools/search?query=...`), where the `query` parameter is user-provided free text and the response includes searchable tool metadata suitable for LLM ingestion.
W012: Unverifiable external dependency detected (runtime URL that controls agent).
What this means
The skill fetches instructions or code from an external URL at runtime, and the fetched content directly controls the agent’s prompts or executes code. This dynamic dependency allows the external source to modify the agent’s behavior without any changes to the skill itself.
Why it was flagged
The CLI and SDK explicitly fetch the tool manifest at runtime from https://my-tool.example.com/.well-known/ai-tool/my-tool.json to validate/register the tool, and that manifest directly determines the tool's interface and invocation behavior (i.e., agent-facing instructions), so this is a runtime external dependency that controls agent instructions.
- Repository
- ProjectOpenSea/opensea-skill
- Commit
1e2e2e2
- Audited
- Security analysis
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