Agent skill

Lienfi

by BankrBot in BankrBot/skills

Research and buy tokenized US tax lien certificates on LienFi (Base, USDC) — screen the live book by NET yield with no credential, then, once your operator has authorized your wallet in a browser…

No licenceAuto-check passed

Install Lienfi

skills CLI
$ npx skills add BankrBot/skills --skill lienfi -a claude-code

Project install by default; add -g for ~/.claude/skills/.

GitHub CLI
$ gh skill install BankrBot/skills lienfi --agent claude-code

Project scope by default; add --scope user for a personal install. Needs GitHub CLI 2.90.0 or later (public preview).

Manual copy
$ git clone --depth 1 https://github.com/BankrBot/skills.git skills-src && mkdir -p .claude/skills && cp -r skills-src/lienfi .claude/skills/lienfi && rm -rf skills-src

Use ~/.claude/skills/ instead of .claude/skills for a personal install. The folder must contain SKILL.md.

Claude Code skills documentation · loads skills from .claude/skills/

Facts

Skill name
lienfi
GitHub stars
1.2k
Token cost
~5.4k tokens
SKILL.md length
2,528 words
Files
5 (incl. references)
Skills in repo
97
Repo updated
First seen
Licence
None found

At a glance

Research and buy tokenized US tax lien certificates on LienFi (Base, USDC) — screen the live book by NET yield with no credential, then, once your operator has authorized your wallet in a browser…

  • Works in 6 steps: Research (no credential) → Get authorized (the human step) → Sign the key proof and the consents… → …
  • SKILL.md covers Prerequisites, Endpoints, Money rules that are not… and Step 1 — Research (no…, plus 10 more sections
  • Calls curl; reaches api.lienfi.com and api.bankr.bot; needs BANKR_API_KEY

What it does

Lienfi is an agent skill from BankrBot/skills. Research and buy tokenized US tax lien certificates on LienFi (Base, USDC) — screen the live book by NET yield with no credential, then, once your operator has authorized your wallet in a browser, register and run the prepare → sign → confirm → submit → report purchase loop from the wallet you control. LienFi signs only the price; every transaction leaves your wallet.

Its SKILL.md is about 5.4k tokens, which your agent loads only when the skill is triggered. The skill folder holds 5 other files, including reference files (for example `catalog.json`, `references/refusal-codes.md` and `references/typed-data.md`).

It works with Circle USDC. The repository describes itself as: Bankr Skills equip builders with plug-and-play tools to build more powerful agents.

Example prompts

  • “/lienfi”

Requirements

  • A credential in BANKR_API_KEY

Workflow steps

6 steps, taken from the step headings in SKILL.md.

  1. Research (no credential)
  2. Get authorized (the human step)
  3. Sign the key proof and the consents (your wallet)
  4. Register
  5. Check yourself, then price
  6. Buy, one purchase at a time

What it can do on your machine

Read from SKILL.md and the folder at commit dc47eed. It shows what the files ask for, not the result of running them.

  • Tool permissions

    Pre-approves nothing: there is no allowed-tools line, so your agent's usual permission prompts apply.

    From allowed-tools in the SKILL.md frontmatter.

  • Runs code

    Shell commands in SKILL.md call:

    • curl

    From the folder's file list and the shell code blocks in SKILL.md.

  • Network

    Hosts in commands or code, which the agent is likely to contact:

    • api.lienfi.com
    • api.bankr.bot

    Also links to:

    • bankr.bot

    From URLs in SKILL.md, links to its own repository left out.

  • Credentials

    Names these keys or tokens, usually read from environment variables:

    • BANKR_API_KEY

    From names ending in _API_KEY, _TOKEN, _SECRET, _KEY or _PASSWORD in SKILL.md.

Context cost

Lienfi loads about 5.4k tokens when it runs, and up to ~8k if it reads all its reference files. Until then it costs about 94 tokens; SKILL.md has 2,528 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it
~94
When it runs · the whole SKILL.md, loaded when a task matches
~5.4k
With references · SKILL.md plus every file in references/, read only if the agent opens them
~8k

Estimates: characters ÷ 4, the usual rule of thumb; real counts depend on the model's tokenizer. Scripts and assets cost tokens only if the agent reads them.

Safety

Auto-check passed

The automated check found no risky patterns in SKILL.md.

Automated static check — not a guarantee. Review scripts before installing. It scans the text of SKILL.md for risky patterns (piping downloads into a shell, reading credential files, hidden Unicode, destructive commands); files beside SKILL.md are not scanned.

SKILL.md

Without a licence we can't republish the file, so here is its outline and opening line. It has 2,528 words (~5,352 tokens).

“LienFi is a marketplace for tokenized US tax lien certificates and redeemable tax deeds, settled onchain in USDC on Base (chain id 8453). This skill teaches you to research the book, get authorized by your operator, and buy from the…”

— opening of SKILL.md by BankrBot
name
lienfi
emoji
🏛️
tags
lienfi, tax-liens, real-estate, base, usdc, mcp, investing
visibility
public

Read the full SKILL.md on GitHub

Files

SKILL.md and 4 other files (references) in lienfi of BankrBot/skills.

  • SKILL.md
  • catalog.json
  • logo.svg
  • references/refusal-codes.md
  • references/typed-data.md

Open the folder on GitHubat commit dc47eed

Compare with similar skills

Lienfi next to the 5 skills that share the most tags, products or categories with it. Stars are the repository's; “used in” counts other GitHub owners with a copy.

Lienfi compared with similar skills
SkillStarsUsed inTokensAuto-checkLicenceRepo updated
Lienfi this skillBankrBot/skills1.2k—~5.4kAutomated safety check: PassNone
Agentic Walletcoinbase/agentic-wallet-skills1273 repos~1kAutomated safety check: PassMIT
Minara Crypto Trading and WalletMinara-AI/minara-skills3581 repos~5.7kAutomated safety check: PassNone
Kleros IPFS Uploadinternet-court/internet-court-skill6.4k—~4.9kAutomated safety check: NotesMIT
Polymarket TradingBlockRunAI/ClawRouter6.6k—~1.4kAutomated safety check: PassMIT
Predexon Prediction Market DataBlockRunAI/ClawRouter6.6k—~4.7kAutomated safety check: PassMIT

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Works with

Questions about Lienfi

What does Lienfi do?

Research and buy tokenized US tax lien certificates on LienFi (Base, USDC) — screen the live book by NET yield with no credential, then, once your operator has authorized your wallet in a browser…. Lienfi is an agent skill from BankrBot/skills. Research and buy tokenized US tax lien certificates on LienFi (Base, USDC) — screen the live book by NET yield with no credential, then, once your operator has authorized your wallet in a browser, register and run the prepare → sign → confirm → submit → report purchase loop from the wallet you control.

How do I install Lienfi in Claude Code?

Run `npx skills add BankrBot/skills --skill lienfi -a claude-code`. Or copy the skill folder (lienfi in BankrBot/skills) into .claude/skills/lienfi in your project. Claude Code loads it when a task matches its description.

How do I install Lienfi in Codex?

Run `npx skills add BankrBot/skills --skill lienfi -a codex`. Or copy the skill folder (lienfi in BankrBot/skills) into .agents/skills/lienfi in your project. Codex loads it when a task matches its description.

Can I use Lienfi in Cursor, Gemini CLI or GitHub Copilot?

Cursor, Gemini CLI, GitHub Copilot and OpenCode also load SKILL.md folders. With the skills CLI, run `npx skills add BankrBot/skills --skill lienfi -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/lienfi, .gemini/skills/lienfi, .github/skills/lienfi and .opencode/skills/lienfi in your project.

What does Lienfi need to run?

Going by SKILL.md and its folder, Lienfi needs the command-line tools its instructions call (curl) and credentials named BANKR_API_KEY. Our summary lists: A credential in BANKR_API_KEY.

Does Lienfi access the network?

SKILL.md names 3 domains. In commands or code: api.lienfi.com and api.bankr.bot; the agent is likely to contact these when it follows the instructions. As links in the text: bankr.bot. This is read from the text; nothing was executed.

Is Lienfi safe to install?

Our automated static check of SKILL.md found no risky patterns, such as piping downloads into a shell, reading credential files or hidden Unicode. It is not a guarantee. Review the folder before installing.

What licence does Lienfi use?

No licence was found for Lienfi or its repository. Without one, default copyright applies: ask the author before reusing or redistributing it.

How many tokens does Lienfi use?

About 5.4k tokens (SKILL.md is roughly 21k characters). Agents keep only the skill's name and description in context until a task matches; then they load SKILL.md in full. Its references folder adds about 2.7k tokens, read only when the agent opens those files.

What are the alternatives to Lienfi?

Skills that share tags, products or a category with Lienfi: Agentic Wallet (coinbase/agentic-wallet-skills, 127 stars), Minara Crypto Trading and Wallet (Minara-AI/minara-skills, 358 stars), Kleros IPFS Upload (internet-court/internet-court-skill, 6.4k stars) and Polymarket Trading (BlockRunAI/ClawRouter, 6.6k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.

Who maintains Lienfi?

BankrBot (a GitHub organization) maintains it in BankrBot/skills, which has 1,201 GitHub stars. The repository holds 97 skills in this directory. The repository was last updated on October 5, 2026.

Source: BankrBot/skills on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.