opensea-api

opensea-api is a skill for Claude Code, Codex from ProjectOpenSea/opensea-skill. It costs 79 tokens per session (10,784 once invoked), scanned A, original, no licence file.

A tool for looking up OpenSea marketplace information about NFTs, collections, tokens, wallets, and activity.

In plain words
What is it for?
Use it to check floor prices, collection statistics, NFT details, token data, trends, drops, events, searches, favourites, profiles, and collection settings.
Why use it?
It gathers marketplace data through several interfaces, so you do not need to build each lookup yourself or use trading tools for read-only questions.

Skill for Claude CodeCodex

Install

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.

agentmods
npx agentmods add skills/projectopensea/opensea-skill/opensea-api
Any agent
npx skills add ProjectOpenSea/opensea-skill --skill opensea-api
Clone the repo
git clone --depth 1 https://github.com/ProjectOpenSea/opensea-skill

Made for: Claude Code, Codex.

Wrote 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.

agentmods badge for opensea-api

README.md
[![agentmods](https://agentmods.dev/badge/skills/projectopensea/opensea-skill/opensea-api.svg)](https://agentmods.dev/skills/projectopensea/opensea-skill/opensea-api)
Your own site
<a href="https://agentmods.dev/skills/projectopensea/opensea-skill/opensea-api"><img src="https://agentmods.dev/badge/skills/projectopensea/opensea-skill/opensea-api.svg" alt="Measured on agentmods" height="20"></a>
Per session 79 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 10,784 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 1 finding. Scan, not verified.
Origin unknown No closer match found in the catalogue.
Token cost

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.

ModelPer sessionOnce invoked
Fable 5.1 $0.00079 $0.10784
Opus 5 $0.00039 $0.05392
Sonnet 5 $0.00016 $0.02157
Haiku 4.5 $0.00008 $0.01078

Measured 5d ago against content hash b8b0aff1513f, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-05, from the pricing page.

Security

Grade A, and why

opensea-api scanned grade A with 1 finding 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 5d ago.

The scan reads SKILL.md. This mod also ships 56 executable files (scripts/_response-markers.sh, scripts/accounts/opensea-account-closed-positions.sh, scripts/accounts/opensea-account-collections.sh, …), listed below but not scanned — reading those needs a real analyzer, not pattern matching.

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.

Makes network callslowCapability

Not a fault in itself. Listed so you know the mod talks to something, and to what.

- curl
opensea-api/SKILL.md · 831 lines

The source is not reproduced here

No licence file

A repository with no LICENSE is all rights reserved by default, so the body is not copied here. The metadata, the measurements and the link are.

Read it on GitHub

Files

What ships with it

59 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.

Changes

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.

  1. 5d ago First seen · 831 lines · 79 tokens per session scan A b8b0aff1513f

Subscribe to this mod's changes

opensea-api is a skill published in the GitHub repository ProjectOpenSea/opensea-skill (49 stars, last pushed 4d ago), with no licence file. It adds 79 tokens to every session and 10,784 once invoked, about $0.0004 per session on Opus 5. A static security scan graded it A with 1 finding (makes network calls). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.

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