A development guide for Klever, a blockchain network. It covers smart contracts written in Rust and compiled to WebAssembly, plus programs that send transactions or communicate with Klever nodes.

Use it to write and deploy Klever smart contracts, work with KLV and KDA tokens, build transactions, use Klever software libraries, and query Klever nodes or APIs.

It brings the network’s programming rules, tools, and address formats into one reference. This helps avoid mistakes when building contracts, transactions, or applications for Klever.

klever-dev — Skill for Claude Code by klever-io

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 klever-io/mcp-klever-vm --skill docs

Clone the repo

git clone --depth 1 https://github.com/klever-io/mcp-klever-vm

Made for: Claude Code.

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/klever-io/mcp-klever-vm/docs/github.svg)](https://agentmods.dev/skills/klever-io/mcp-klever-vm/docs)

Your own site

<a href="https://agentmods.dev/skills/klever-io/mcp-klever-vm/docs"><img src="https://agentmods.dev/badge/skills/klever-io/mcp-klever-vm/docs/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/klever-io/mcp-klever-vm/docs"><img src="https://agentmods.dev/badge/skills/klever-io/mcp-klever-vm/docs.svg" alt="Reviewed on agentmods" width="80" height="20"></a>

Per session 76 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.

When invoked 2,542 The whole file, excluding the scripts and references it only reads on demand.

Security scan A 0 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	$0.00076	$0.02542
Opus 5	$0.00038	$0.01271
Sonnet 5	$0.00015	$0.00508
Haiku 4.5	$0.00008	$0.00254

Measured 9d ago against content hash 8d950bdb8701, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-09, from the pricing page.

Security

Grade A, and why

klever-dev scanned grade A with 0 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 9d 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.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

docs/SKILL.md · 301 lines

How it starts

The opening of the file, as written. The whole thing — 301 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Klever Blockchain Skill

LLM-optimized reference for building on Klever. Use this to produce correct smart contracts, transactions, and dApp integrations.

Role

You are an expert Klever blockchain developer. Your stack:

Smart contracts: Rust with klever_sc framework, compiled to WASM
Client SDKs: @klever/connect (TypeScript) or klever-go-sdk (Go)
Tooling: ksc (compiler) + koperator (deploy/invoke/query)
Networks: Testnet for development, mainnet for production

You write clean, secure, production-ready code. You always validate against the correctness rules below before writing any code.

When to Use This Skill

Activate this skill when the task involves ANY of the following:

KLV or KDA tokens (balances, transfers, staking, freezing)
klv1... addresses (bech32 format)
Klever smart contracts (Rust, klever_sc, WASM)
ksc or koperator CLI commands
Klever node or API interaction (ports 8080/9090)
@klever/connect or klever-go-sdk usage

Task Decision Tree

Use this to route the task to the correct guide:

What does the task involve?
├─ Writing a smart contract?
│  ├─ New contract from scratch
│  │  └─ Start with Quick Start below, then → 01-smart-contracts.md
│  ├─ Adding storage/state
│  │  └─ → 02-storage.md (mappers, namespaces)
│  ├─ Handling tokens/payments
│  │  └─ → 03-tokens.md (payable endpoints, KLV/KDA)
│  ├─ Emitting events
│  │  └─ → 04-events.md (ONE-DATA rule)
│  └─ Using modules (admin, pause)
│     └─ → 05-modules.md
│
├─ Building or deploying?
│  └─ → 06-deployment.md (ksc build, koperator deploy/invoke/query)
│
├─ Querying on-chain data?
│  └─ → 07-api-reference.md (Node API port 8080, API proxy port 9090)
│
├─ Reviewing for security?
│  └─ → 08-security.md (reentrancy, overflow, access control)
│
└─ Debugging an error?
   └─ → 09-troubleshooting.md (common errors and fixes)

How to Use This Skill

Classify the task using the decision tree above
Validate against the correctness rules below before writing any code
Reference the detailed guide for the relevant topic — start minimal, add complexity only when needed
Verify all code uses the correct imports, address format, decimals, and CLI flags
Deliver complete, working code with build/deploy commands and security considerations

Read the full file on GitHub · 301 lines

Files

What ships with it

14 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.

9d ago First seen · 301 lines · 76 tokens per session scan A 8d950bdb8701

Subscribe to this mod's changes

klever-dev is a skill published in the GitHub repository klever-io/mcp-klever-vm (31 stars, last pushed 3mo ago), licensed MIT. It adds 76 tokens to every session and 2,542 once invoked, about $0.0004 per session on Opus 5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.

Languages Rust Web3 and blockchain blockchain klever mcp mcp-server model-context-protocol smart-contracts

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