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Agent skill

Mercury

by Anil-matcha in Anil-matcha/awesome-muse-connectors

View Mercury bank accounts and transactions. An agent skill from Anil-matcha/awesome-muse-connectors.

MITAuto-check passed

Install Mercury

skills CLI
$ npx skills add Anil-matcha/awesome-muse-connectors --skill mercury -a claude-code

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

GitHub CLI
$ gh skill install Anil-matcha/awesome-muse-connectors mercury --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/Anil-matcha/awesome-muse-connectors.git skills-src && mkdir -p .claude/skills && cp -r skills-src/connectors/mercury .claude/skills/mercury && 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
mercury
GitHub stars
1.3k
Token cost
~512 tokens
SKILL.md length
179 words
Files
2
Skills in repo
153
Repo updated
First seen
Licence
MIT

At a glance

View Mercury bank accounts and transactions. An agent skill from Anil-matcha/awesome-muse-connectors.

  • Works in 3 steps: This connector is read-only by design:… → Never exfiltrate the credential: the CLI… → Resolve the account ID with accounts…
  • Phrases: mercury
  • SKILL.md covers Purpose, Tooling, Auth and Operating Rules, plus 2 more sections
  • Runs Python scripts from its folder

What it does

Mercury is an agent skill from Anil-matcha/awesome-muse-connectors. View Mercury bank accounts and transactions. Read-only by design. Trigger phrases: mercury, mercury balance, mercury transactions.

Its SKILL.md is about 510 tokens, which your agent loads only when the skill is triggered. The skill folder holds 2 other files (for example `bin/mercury.py`).

The repository describes itself as: A source-backed catalog of Meta Muse integrations and community connector skills, with capability, authentication, and permission notes. The licence is MIT.

When your agent uses it

  • Phrases: mercury
  • Mercury balance
  • Mercury transactions

Example prompts

  • “/mercury”

Requirements

  • Python 3

Workflow steps

3 steps, taken from the first numbered list in SKILL.md.

  1. This connector is read-only by design: accounts and transactions only retrieve data. There are no write commands.
  2. Never exfiltrate the credential: the CLI only ever handles surrogates. Do not print, log, or transmit the token value.
  3. Resolve the account ID with accounts before calling transactions; do not guess account IDs.

What it can do on your machine

Read from SKILL.md and the folder at commit d6dc5d8. 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

    Ships script files (Python), which the agent can run.

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

  • Network

    No URLs in SKILL.md.

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

  • Credentials

    Names no API keys, tokens, secrets or passwords.

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

Context cost

Mercury loads about 512 tokens when it runs. Until then it costs about 35 tokens; SKILL.md has 179 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it
~35
When it runs · the whole SKILL.md, loaded when a task matches
~512

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

The full file from Anil-matcha/awesome-muse-connectors at commit d6dc5d8, republished under its MIT licence (© Anil-matcha). 179 words, ~512 tokens.

Download SKILL.mdSave it as .claude/skills/mercury/SKILL.md (or your agent's skills folder). This skill also uses 1 other file; get the full folder from GitHub.
name
mercury
description
View Mercury bank accounts and transactions. Read-only by design. Trigger phrases: mercury, mercury balance, mercury transactions.
metadata.includeInPrompt
true
tagline
View Mercury bank accounts and transactions. Read-only by design.
catalog_auth
Mercury API token (per-user, app.mercury.com → Settings → API Tokens; a Read-Only token suffices)
catalog_hosts
api.mercury.com

Mercury

Purpose

Read-only access to the user's Mercury banking: list bank accounts and view recent transactions per account. Use when the user mentions Mercury, asks about a Mercury balance, or wants Mercury transactions. This connector cannot move money or change anything.

Tooling

All commands go through bin/mercury.py:

bash
bin/mercury.py auth                                # verify the connection
bin/mercury.py accounts                            # list bank accounts
bin/mercury.py transactions --account A --limit 20 # recent transactions for account A

Use accounts first to resolve an account ID for transactions.

Auth

  • Provider id: mercury (credential is collected as custom.mercury)
  • Collection: API key via the secure credential flow (credentials.request_api_access)
  • Token: generated at app.mercury.com → Settings → API Tokens. Use a Read-Only token (no IP whitelist needed); Read+Write tokens require IP whitelisting.
  • Allowed hosts: api.mercury.com
  • Status check: bin/mercury.py auth (must return "ok": true)
  • Connect placement: bearer_header

Operating Rules

  1. This connector is read-only by design: accounts and transactions only retrieve data. There are no write commands.
  2. Never exfiltrate the credential: the CLI only ever handles surrogates. Do not print, log, or transmit the token value.
  3. Resolve the account ID with accounts before calling transactions; do not guess account IDs.

Files

  • SKILL.md
  • bin/mercury.py

Maturity

🧪 Draft: written from Mercury's public API docs; not yet live-tested end-to-end.

© Anil-matcha, MIT. Rendered from Markdown: HTML in the file is shown as text, images as links, and headings moved down two levels. Raw file

Files

SKILL.md and 1 other file in connectors/mercury of Anil-matcha/awesome-muse-connectors.

  • SKILL.md
  • bin/mercury.py

Open the folder on GitHubat commit d6dc5d8

Compare with similar skills

Mercury 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.

Mercury compared with similar skills
SkillStarsUsed inTokensAuto-checkLicenceRepo updated
Mercury this skillAnil-matcha/awesome-muse-connectors1.3k—~512Automated safety check: PassMIT
Bank Accounts and Transactions via Plaidcodewhale-hq/Codewhale41k—~305Automated safety check: PassMIT
Odoo Accounting Setupsickn33/agentic-awesome-skills47k2 repos~1kAutomated safety check: PassMIT
Open Banking Iodavila7/claude-code-templates33k—~472Automated safety check: PassMIT
Expense Accountingsickn33/agentic-awesome-skills47k1 repos~6.5kAutomated safety check: PassMIT
Purchase Accountingsickn33/agentic-awesome-skills47k1 repos~5.1kAutomated safety check: PassMIT

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  • Bank Accounts and Transactions via Plaid

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    Expert guide for configuring Odoo Accounting: chart of accounts, journals, fiscal positions, taxes, payment terms, and bank reconciliation.

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Questions about Mercury

What does Mercury do?

View Mercury bank accounts and transactions. An agent skill from Anil-matcha/awesome-muse-connectors. Mercury is an agent skill from Anil-matcha/awesome-muse-connectors. View Mercury bank accounts and transactions.

When should I use Mercury?

Mercury fits situations like: phrases: mercury; mercury balance; mercury transactions.

How do I install Mercury in Claude Code?

Run `npx skills add Anil-matcha/awesome-muse-connectors --skill mercury -a claude-code`. Or copy the skill folder (connectors/mercury in Anil-matcha/awesome-muse-connectors) into .claude/skills/mercury in your project. Claude Code loads it when a task matches its description.

How do I install Mercury in Codex?

Run `npx skills add Anil-matcha/awesome-muse-connectors --skill mercury -a codex`. Or copy the skill folder (connectors/mercury in Anil-matcha/awesome-muse-connectors) into .agents/skills/mercury in your project. Codex loads it when a task matches its description.

Can I use Mercury 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 Anil-matcha/awesome-muse-connectors --skill mercury -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/mercury, .gemini/skills/mercury, .github/skills/mercury and .opencode/skills/mercury in your project.

What does Mercury need to run?

Going by SKILL.md and its folder, Mercury needs Python for the scripts in its folder. Our summary lists: Python 3.

Does Mercury access the network?

SKILL.md contains no URLs. Any network use would come from the scripts or tools the agent runs. This is read from the text; nothing was executed.

Is Mercury 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 Mercury use?

Mercury is published under the MIT licence (the repository's licence). It allows redistribution, so the full SKILL.md is shown on this page.

How many tokens does Mercury use?

About 512 tokens (SKILL.md is roughly 2k characters). Agents keep only the skill's name and description in context until a task matches; then they load SKILL.md in full.

What are the alternatives to Mercury?

Skills that share tags, products or a category with Mercury: Bank Accounts and Transactions via Plaid (codewhale-hq/Codewhale, 41k stars), Odoo Accounting Setup (sickn33/agentic-awesome-skills, 47k stars), Open Banking Io (davila7/claude-code-templates, 33k stars) and Expense Accounting (sickn33/agentic-awesome-skills, 47k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.

Who maintains Mercury?

Anil-matcha (a GitHub user) maintains it in Anil-matcha/awesome-muse-connectors, which has 1,347 GitHub stars. The repository holds 153 skills in this directory. The repository was last updated on October 5, 2026.

Source: Anil-matcha/awesome-muse-connectors on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.