An integration guide for the Octav API, a service that provides cryptocurrency portfolio, transaction, and DeFi data across blockchain networks. It describes authenticated API requests and the available data endpoints.

Use it to retrieve wallet holdings, net worth, transaction history, historical portfolio snapshots, token breakdowns, sync status, and API credit information.

It removes the need to design the API connection and endpoint usage from scratch. It helps applications obtain blockchain portfolio and transaction information in a consistent way.

octav-api — Skill for Claude Code and Codex by eric861129

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.

Any agent

npx skills add eric861129/SKILLS_All-in-one --skill octav-api-skill

Clone the repo

git clone --depth 1 https://github.com/eric861129/SKILLS_All-in-one

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.

README.md

[![agentmods](https://agentmods.dev/badge/skills/eric861129/skills_all-in-one/octav-api-skill/github.svg)](https://agentmods.dev/skills/eric861129/skills_all-in-one/octav-api-skill)

Your own site

<a href="https://agentmods.dev/skills/eric861129/skills_all-in-one/octav-api-skill"><img src="https://agentmods.dev/badge/skills/eric861129/skills_all-in-one/octav-api-skill/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.

Your own site · 80×15

<a href="https://agentmods.dev/skills/eric861129/skills_all-in-one/octav-api-skill"><img src="https://agentmods.dev/badge/skills/eric861129/skills_all-in-one/octav-api-skill.svg" alt="Reviewed on agentmods" width="80" height="20"></a>

Per session 136 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.

When invoked 3,118 The whole file, excluding the scripts and references it only reads on demand.

Security scan B 2 findings. A grade says what 26 rules found in the file — not that it is safe.

Origin original 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.

Model	Per session	Once invoked
Fable 5.1	$0.00136	$0.03118
Opus 5	$0.00068	$0.01559
Sonnet 5	$0.00027	$0.00624
Haiku 4.5	$0.00014	$0.00312

Measured 8d ago against content hash 04a49624963a, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-11, from the pricing page.

Security

Grade B, and why

octav-api scanned grade B with 2 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 8d 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.

Sends data to an external URLmediumData exfiltration

A POST to an outside endpoint may be telemetry or may be exfiltration; either way the mod talks to somewhere, and you should know where.

const response = await fetch('https://api.octav.fi/v1/sync-transactions', { method: 'POST',

Makes network callslowCapability

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

curl -X GET "https://api.octav.fi/v1/credits" \

public/SKILLS/Data & Analysis/octav-api-skill/SKILL.md · 402 lines

How it starts

The opening of the file, as written. The whole thing — 402 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Octav API Integration

API for cryptocurrency portfolio tracking, transaction history, and DeFi analytics.

Quick Reference

Base URL: https://api.octav.fi Auth: Bearer token in Authorization header Rate Limit: 360 requests/minute/key Pricing: Credit-based ($0.02-0.025/credit) Dev Portal: https://data.octav.fi

Authentication

curl -X GET "https://api.octav.fi/v1/credits" \
  -H "Authorization: Bearer YOUR_API_KEY"

Store API key in environment variable OCTAV_API_KEY. Never hardcode.

Endpoints Overview

Endpoint	Method	Cost	Description
`/v1/portfolio`	GET	1 credit	Portfolio holdings across chains/protocols
`/v1/nav`	GET	1 credit	Net Asset Value (simple number)
`/v1/transactions`	GET	1 credit	Transaction history with filtering
`/v1/token-overview`	GET	1 credit	Token breakdown by protocol (PRO only)
`/v1/historical`	GET	1 credit	Historical portfolio snapshots
`/v1/sync-transactions`	POST	1+ credits	Trigger transaction sync
`/v1/status`	GET	Free	Check sync status
`/v1/credits`	GET	Free	Check credit balance

Core Endpoints

Portfolio

Get holdings across wallets and DeFi protocols.

const response = await fetch(
  `https://api.octav.fi/v1/portfolio?addresses=${address}`,
  { headers: { 'Authorization': `Bearer ${apiKey}` } }
);
const portfolio = await response.json();
// portfolio.networth, portfolio.assetByProtocols, portfolio.chains

Parameters:

addresses (required): Comma-separated EVM/Solana addresses
includeNFTs: Include NFT holdings (default: false)
includeImages: Include asset/protocol image URLs (default: false)
waitForSync: Wait for fresh data if stale (default: false)

Response structure:

{
  "address": "0x...",
  "networth": "45231.89",
  "assetByProtocols": {
    "wallet": { "key": "wallet", "name": "Wallet", "value": "12453.20", "assets": [...] },
    "aave_v3": { "key": "aave_v3", "name": "Aave V3", "value": "8934.12", "assets": [...] }
  },
  "chains": {
    "ethereum": { "value": "25123.45", "protocols": [...] },
    "arbitrum": { "value": "20108.44", "protocols": [...] }
  }
}

Read the full file on GitHub · 402 lines

Files

What ships with it

2 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.

8d ago First seen · 402 lines · 136 tokens per session scan B 04a49624963a

Subscribe to this mod's changes

octav-api is a skill published in the GitHub repository eric861129/SKILLS_All-in-one (52 stars, last pushed 4mo ago), licensed MIT. It adds 136 tokens to every session and 3,118 once invoked, about $0.0007 per session on Opus 5. A static security scan graded it B with 2 findings (sends data to an external url, makes network calls). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-09-03.

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octav-api