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.
npx skills add tenzro/tenzro-network --skill ethereum-defigit clone --depth 1 https://github.com/tenzro/tenzro-networkWrote 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.
[](https://agentmods.dev/skills/tenzro/tenzro-network/ethereum-defi)<a href="https://agentmods.dev/skills/tenzro/tenzro-network/ethereum-defi"><img src="https://agentmods.dev/badge/skills/tenzro/tenzro-network/ethereum-defi/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.
<a href="https://agentmods.dev/skills/tenzro/tenzro-network/ethereum-defi"><img src="https://agentmods.dev/badge/skills/tenzro/tenzro-network/ethereum-defi.svg" alt="Reviewed on agentmods" width="80" height="20"></a>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 | $0.00048 | $0.01620 |
| Opus 5 | $0.00024 | $0.00810 |
| Sonnet 5 | $0.00010 | $0.00324 |
| Haiku 4.5 | $0.00005 | $0.00162 |
Grade A, and why
ethereum-defi 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 12d 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.
How it starts
The opening of the file, as written. The whole thing — 204 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Ethereum DeFi Skill
Interact with the Ethereum blockchain for DeFi, token management, ENS resolution, smart contract calls, ERC-8004 agent identity, and Ethereum Attestation Service.
MCP Endpoint
| Service | URL | Description |
|---|---|---|
| Ethereum MCP | https://ethereum-mcp.tenzro.xyz/mcp |
Ethereum MCP Server (port 3004) |
For local development, use http://localhost:3004/mcp.
Tools
DeFi — Prices & Gas
eth_get_price
Get token price from Chainlink data feed via on-chain AggregatorV3Interface.
Parameters:
feed_address(string, optional, default ETH/USD) — Chainlink price feed contract addresschain(string, optional, default "ethereum") — Chain name
Known feeds (Ethereum mainnet):
- ETH/USD:
0x5f4eC3Df9cbd43714FE2740f5E3616155c5b8419 - BTC/USD:
0xF4030086522a5bEEa4988F8cA5B36dbC97BeE88c - LINK/USD:
0x2c1d072e956AFFC0D435Cb7AC38EF18d24d9127c - USDC/USD:
0x8fFfFfd4AfB6115b954Bd326cbe7B4BA576818f6
Returns: Price, round ID, updated timestamp.
eth_get_gas_price
Get current gas price in Gwei.
Returns: Gas price in Gwei and Wei.
eth_estimate_gas
Estimate gas for a transaction.
Parameters:
from(string, required) — Sender addressto(string, required) — Recipient addressdata(string, optional) — Hex-encoded calldatavalue(string, optional) — Value in Wei (hex)
Returns: Estimated gas units.
eth_get_fee_history
Get fee history for recent blocks (EIP-1559).
Parameters:
block_count(string, optional, default "5") — Number of blocksnewest_block(string, optional, default "latest") — Block tagreward_percentiles(string, optional) — Comma-separated percentiles
Returns: Base fees, gas used ratios, reward percentiles per block.
Accounts & Tokens
eth_get_balance
Get ETH balance for an address.
Parameters:
address(string, required) — Ethereum address (0x...)block(string, optional, default "latest") — Block number or tag
What ships with it
1 file 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.
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.
- 12d ago First seen · 204 lines · 48 tokens per session scan A 91488f93eb06
ethereum-defi is a skill published in the GitHub repository tenzro/tenzro-network (3 stars, last pushed 5d ago), licensed Apache-2.0. It adds 48 tokens to every session and 1,620 once invoked, about $0.0002 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 2026-08-31.
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