slack-api

Read Slack messages, threads, channels, download attachments via Python API. Use when you see Slack URLs (https://*.slack.com/archives/*/p*) or need to interact with Slack.

install

source · Clone the upstream repo

git clone https://github.com/hienlh/claude-skill-slack-api

Claude Code · Install into ~/.claude/skills/

git clone --depth=1 https://github.com/hienlh/claude-skill-slack-api ~/.claude/skills/hienlh-claude-skill-slack-api-slack-api

manifest: skill.md

safety · automated scan (low risk)

This is a pattern-based risk scan, not a security review. Our crawler flagged:

references .env files

Always read a skill's source content before installing. Patterns alone don't mean the skill is malicious — but they warrant attention.

source content

Slack API

Read and interact with Slack using Python (no MCP required).

Quick Reference

# Read message/thread from URL
python3 ~/.claude/skills/slack-api/scripts/slack.py --url "SLACK_URL"

# Channel history / Thread replies
python3 ~/.claude/skills/slack-api/scripts/slack.py --history -c CHANNEL_ID -l 10
python3 ~/.claude/skills/slack-api/scripts/slack.py --replies -c CHANNEL_ID --thread-ts TS

# Search / List channels / User info
python3 ~/.claude/skills/slack-api/scripts/slack.py --search "query"
python3 ~/.claude/skills/slack-api/scripts/slack.py --list-channels
python3 ~/.claude/skills/slack-api/scripts/slack.py --user-info USER_ID

# List files from thread (with details)
python3 ~/.claude/skills/slack-api/scripts/slack.py --url "URL" --list-files -v

# Download all files from thread
python3 ~/.claude/skills/slack-api/scripts/slack.py --url "URL" --download-files -o ./downloads

# Output JSON
python3 ~/.claude/skills/slack-api/scripts/slack.py --url "URL" --json

Commands

Flag	Description	Required
`--url`	Read from Slack URL	URL
`--history`	Channel messages	`-c`
`--replies`	Thread replies	`-c` , `--thread-ts`
`--search`	Search messages	query
`--list-channels`	List channels	-
`--user-info`	User details	user_id
`--post`	Post message	`-c` , `-t`
`--list-files`	List files with details	`--url` or messages
`--download-files`	Download all files	`--url` or messages

Options

-c

--channel

--thread-ts

-l

--limit

(20),

-o

--output-dir

(./slack-downloads),

-v

--verbose

--json

Auth

Tokens loaded from

~/.claude/skills/slack-api/.env

SLACK_XOXC_TOKEN=xoxc-...
SLACK_XOXD_TOKEN=xoxd-...

Get tokens: Browser DevTools -> Application -> Cookies (logged into Slack)

URL Parsing

p1767879572095059

1767879572.095059

(insert dot 6 chars from end)