opensea
Query NFT and token data, trade NFTs on Seaport, swap ERC20 tokens via DEX aggregator, configure wallet signing providers, and build/register/gate AI agent tools on Base. Covers the full OpenSea developer surface across CLI, MCP server, shell scripts, and SDK. Pick the right sub-skill using the routing table below, then read that sub-skill's SKILL.md for operational detail.
78
80%
Does it follow best practices?
Impact
91%
2.06xAverage score across 2 eval scenarios
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 references and routes to sub-skills that perform on-chain financial actions: buy/sell NFTs and sweeps, fulfill listings, ERC20 token swaps via a DEX aggregator, and configuring wallet signing (Privy/Turnkey/Fireblocks/Bankr). These are specific crypto/blockchain transaction and signing capabilities (i.e., directly moving assets or signing transactions), so it constitutes 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
In `opensea-api`, untrusted Free text comes indirectly from user-generated NFT/collection metadata returned by OpenSea REST (read via `opensea-get.sh/opensea-post.sh` into the agent’s context, bounded by `--- BEGIN/END OPENSEA API RESPONSE ---` markers), which can include adversarial prompt-injection strings authored by third parties.
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 opensea-tool-sdk skill explicitly instructs the CLI to fetch tool manifests at runtime (e.g. https://my-tool.example.com/.well-known/ai-tool/my-tool.json and https://my-tool.vercel.app/.well-known/ai-tool/my-tool.json), and those fetched manifests directly control registration/behavior of tools (i.e., influence what the agent will call), so this is a runtime external dependency that can control agent behavior.
- Repository
- ProjectOpenSea/opensea-skill
- Path
SKILL.md
- Commit
1e2e2e2
- Audited
- Security analysis
Is this your skill?
If you maintain this skill, you can claim it as your own. Once claimed, you can manage eval scenarios, bundle related skills, attach documentation or rules, and ensure cross-agent compatibility.