chord

chord is a skill for Claude Code from tuantqse90/moltnode-mcp. It costs 247 tokens per session (5,027 once invoked), scanned A, original, MIT.

A service for blockchain market data and preparing token swaps on eight Ethereum-compatible networks. It can find prices and routes, simulate swaps, and return unsigned transactions, but it does not sign transactions or hold funds.

In plain words
What is it for?
Use it to look up tokens and prices, inspect market activity, request swap quotes, simulate trades, and build unsigned swap transactions.
Why use it?
It keeps private keys and signing in the user's wallet while providing one place to inspect decentralised-exchange activity and prepare trades.

Skill for Claude Code

Written for Claude Code: shipped in a Claude Code plugin.

Part of the moltnode plugin — 4 skills, 2 MCP servers shipped together

Good fit Use it to look up tokens and prices, inspect market activity, request swap quotes, simulate trades, and build unsigned swap transactions.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/tuantqse90/moltnode-mcp/chord
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 tuantqse90/moltnode-mcp --skill chord
Clone the repo
git clone --depth 1 https://github.com/tuantqse90/moltnode-mcp

Made for: Claude Code.

Or install moltnode, the plugin that ships this one along with the rest of its 4 skills, 2 MCP servers.

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 chord

README.md
[![agentmods](https://agentmods.dev/badge/skills/tuantqse90/moltnode-mcp/chord/github.svg)](https://agentmods.dev/skills/tuantqse90/moltnode-mcp/chord)
Your own site
<a href="https://agentmods.dev/skills/tuantqse90/moltnode-mcp/chord"><img src="https://agentmods.dev/badge/skills/tuantqse90/moltnode-mcp/chord/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.

agentmods 80×15 button for chord

Your own site · 80×15
<a href="https://agentmods.dev/skills/tuantqse90/moltnode-mcp/chord"><img src="https://agentmods.dev/badge/skills/tuantqse90/moltnode-mcp/chord.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 247 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 5,027 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 1 finding. 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.

ModelPer sessionOnce invoked
Fable 5.1 $0.00247 $0.05027
Opus 5.5 $0.00099 $0.02011
Sonnet 5.5 $0.00049 $0.01005
Haiku 4.5 $0.00025 $0.00503

Measured 11d ago against content hash 34baea7a685f, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

chord 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 11d ago.

The scan reads SKILL.md. This mod also ships 1 executable file (scripts/chord.py), 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.

compatibility: Needs HTTPS access to api.getchord.xyz with curl or python3. No key (60 requests a minute).
skills/chord/SKILL.md · 223 lines

How it starts

The opening of the file, as written. The whole thing — 223 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Chord

Chord indexes every DEX swap on eight EVM chains from its own tape, prices tokens from those trades, and routes a swap across every venue on a chain through one router contract. With this skill you read that data and prepare swaps carefully. You never sign, never broadcast, never hold funds.

  • API: https://api.getchord.xyz (REST, JSON; every path below starts with /v1). Reference: https://getchord.xyz/docs , OpenAPI https://getchord.xyz/docs/openapi.json , docs as MCP (Streamable HTTP) https://getchord.xyz/docs/mcp
  • Auth: none (60 requests a minute per IP). No key, no configuration.
  • Helper: python3 scripts/chord.py (path relative to this skill's folder, standard library only): token, price, board (these three also take solana), stock, meta-quote, meta-swap, quote, swap-tx, simulate, get. It resolves symbols to addresses, converts amounts exactly, prints compact JSON, and builds an unsigned transaction only behind --user-confirmed. Prefer it; plain curl works too. Always pass limit on list calls and never cut JSON with head -c (a truncated answer is a wrong answer).
  • If chord_* MCP tools are in your tool list (the hosted server at https://api.getchord.xyz/v1/mcp) they wrap the same API with the chain as a parameter: chord_chains says what each chain supports, chord_quote and chord_swap_tx go through the meta aggregator on every EVM chain, the rest are reads, plus chord_ask. Every rule below applies to them.

Chains

Chain id key Gas Main stables and anchors Data family
Monad 143 monad MON USDC, AUSD, USDT0, WMON /v1/tokens/market?chain=143
Robinhood Chain 4663 robinhood ETH USDG, WETH, 83 stock tokens /v1/rh/*
Arc 5042 arc USDC USDC (ERC-20 predeploy 0x3600...0000, 6 decimals), EURC /v1/arc/*
Avalanche 43114 avalanche AVAX USDC, USDC.e (bridged), USDt, WAVAX /v1/chains/avalanche/*
Base 8453 base ETH USDC, USDbC (bridged), WETH /v1/chains/base/*
BNB Chain 56 bnb BNB USDT and USDC (both 18 decimals here), WBNB /v1/chains/bnb/*
Arbitrum One 42161 arbitrum ETH USDC, USDT0, USDC.e (bridged), WETH /v1/chains/arbitrum/*
Ethereum 1 ethereum ETH USDC, USDT (approve 0 first when an old allowance is left), DAI (18 decimals), WETH /v1/chains/ethereum/*
Solana none solana SOL USDC, USDT, wSOL (base58 mints, case-sensitive) /v1/chains/solana/* (data) · /v1/sol/trade/* (swaps, beta)

Read the full file on GitHub · 223 lines

Files

What ships with it

7 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. 11d ago First seen · 223 lines · 247 tokens per session scan A 34baea7a685f

Subscribe to this mod's changes

chord is a skill published in the GitHub repository tuantqse90/moltnode-mcp (1 stars, last pushed 7d ago), licensed MIT. It adds 247 tokens to every session and 5,027 once invoked, about $0.0010 per session on Opus 5.5. 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 2026-10-16.

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