🛠️ JieBang Developer API

15+ Free Developer Tool APIs · Free API Key · MCP Supported

🆓 Free⚡ Fast🔑 Free Key🤖 MCP Ready

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📋 REST API Endpoints

Base URL: https://www.jiebang.site · Method: POST · Content-Type: application/json

POST/api/json-yaml

JSON ↔ YAML Converter

Auto-detect format and convert. Or specify direction.

Param	Type	Required	Description
input	string	required	JSON or YAML string
direction	string	optional	auto / json2yaml / yaml2json

// Request
curl -X POST https://www.jiebang.site/api/json-yaml \
  -H "Content-Type: application/json" \
  -d '{"input":"{\"name\":\"hello\"}","direction":"auto"}'

// Response
{"result":"name: hello","direction":"json2yaml"}

POST/api/xml-format

XML Formatter

Beautify, minify, or validate XML.

Param	Type	Required	Description
input	string	required	XML string
action	string	optional	beautify / minify / validate

POST/api/sql-format

SQL Formatter

Beautify, minify, or uppercase SQL keywords.

Param	Type	Required	Description
input	string	required	SQL string
action	string	optional	beautify / minify / uppercase

POST/api/cron-parse

Cron Expression Parser

Parse 5-field cron expressions into human-readable descriptions with next 5 run times.

Param	Type	Required	Description
expression	string	required	5-field cron: min hour day month weekday

POST/api/base-convert

Base Converter

Convert between decimal, binary, octal, hexadecimal.

Param	Type	Required	Description
value	string	required	Number to convert
from	string	optional	dec / bin / oct / hex (default: dec)

POST/api/html-entity

HTML Entity Encoder/Decoder

Encode or decode HTML entities, auto-detect direction.

Param	Type	Required	Description
input	string	required	String to process
action	string	optional	auto / encode / decode

POST/api/timezone-convert

Timezone Converter

Convert time between time zones. Returns 20 major cities if no target specified.

Param	Type	Required	Description
datetime	string	required	ISO time e.g. 2026-06-04T12:00
fromZone	string	optional	Source timezone (default: Asia/Shanghai)
toZone	string	optional	Target timezone

POST/api/qrcode

🎨 QR Code Generator

Generate QR codes with SVG/BMP/DataURL output, custom colors and error correction.

Param	Type	Required	Description
content	string	required	Text or URL to encode
size	number	optional	Pixel size 64-1024 (default: 256)
format	string	optional	svg / bmp / dataurl (default: svg)
fgColor	string	optional	Foreground hex (default: 000000)
bgColor	string	optional	Background hex (default: ffffff)
ecLevel	string	optional	Error correction L/M/Q/H (default: M)

// Returns SVG image
curl -X POST https://www.jiebang.site/api/qrcode \
  -d '{"content":"https://example.com","format":"svg"}' \
  -o qrcode.svg

POST/api/meta-extract

🔍 SEO Meta Extractor

Extract SEO info from any URL: title, description, OG tags, Twitter Cards, structured data, SEO health score.

Param	Type	Required	Description
url	string	required	URL to analyze
format	string	optional	full / summary (default: full)

POST/api/seo-check

📊 SEO Health Check

Quick SEO score and issues list. Also supports GET: GET /api/seo-check?url=...

Param	Type	Required	Description
url	string	required	URL to check
format	string	optional	full / summary (default: full)

POST/api/shorten

🔗 URL Shortener

Create short links with click tracking. Free: 100 links/day (vs Bitly's 5/month!).

Param	Type	Required	Description
url	string	required	Long URL to shorten
code	string	optional	Custom short code (3-20 chars)

// Create short link
curl -X POST https://www.jiebang.site/api/shorten \
  -d '{"url":"https://example.com/very/long/url"}'

// Response
{"shortUrl":"https://www.jiebang.site/s/abc123","code":"abc123",...}

// Check stats
GET https://www.jiebang.site/api/shorten?code=abc123

POST/api/image-convert

🖼️ Image Format Converter

Convert images to WebP/AVIF/PNG/JPEG with quality and resize options.

Param	Type	Required	Description
url	string	required	Image URL to convert
format	string	optional	webp / avif / png / jpeg (default: webp)
quality	number	optional	Quality 1-100 (default: 80)
width	number	optional	Target width (px)
height	number	optional	Target height (px)

// Convert to WebP
curl -X POST https://www.jiebang.site/api/image-convert \
  -d '{"url":"https://example.com/photo.jpg","format":"webp","quality":75}' \
  -o output.webp

POST/GET/api/cron-task

⏰ Cron Task Manager

Scheduled task manager built for AI Agents. Create cron tasks, check due tasks, mark as done. Perfect for daily check-ins, monitoring, reminders.

Param	Type	Required	Description
agent_id	string	Optional	Your agent identifier (default: "default")
name	string	Required	Task name, e.g. "Daily Check-in"
schedule	string	Required	Cron expression (5 fields): min hour day month weekday
description	string	Optional	Task description
tags	array	Optional	Tags like ["checkin", "monitor"]
callback_url	string	Optional	Webhook URL to call when due

// Create task
curl -X POST https://www.jiebang.site/api/cron-task \
  -H "Content-Type: application/json" \
  -d '{"agent_id":"my-bot","name":"Daily Check-in","schedule":"0 9 * * *","tags":["checkin"]}'

// Check due tasks
curl "https://www.jiebang.site/api/cron-task?agent_id=my-bot&due=true"

// Mark done
curl -X POST "https://www.jiebang.site/api/cron-task/{task_id}/done?agent_id=my-bot"

// View execution logs
curl "https://www.jiebang.site/api/cron-task/{task_id}/logs?agent_id=my-bot&limit=10"

// View all agent logs
curl "https://www.jiebang.site/api/cron-task/logs?agent_id=my-bot"

// View task templates
curl "https://www.jiebang.site/api/cron-task/templates"

// Create task with retry
curl -X POST https://www.jiebang.site/api/cron-task \
  -H "Content-Type: application/json" \
  -d '{"agent_id":"my-bot","name":"Daily Check-in","schedule":"0 8 * * *","max_retries":3}'

// Mark as failed (triggers retry)
curl -X POST "https://www.jiebang.site/api/cron-task/{task_id}/done?agent_id=my-bot" \
  -H "Content-Type: application/json" \
  -d '{"status":"failed","message":"API timeout"}'

// Delete task
curl -X DELETE "https://www.jiebang.site/api/cron-task/{task_id}?agent_id=my-bot"

POST/api/file-process

📁 File Process Center

Parse, generate, analyze & convert tabular data. Supports CSV/TSV/JSON/XML formats with auto-detection. Ideal for exam data processing, report generation, data cleaning.

Param	Type	Required	Description
action	string	Yes	Action: parse / generate / analyze / convert
content	string	Yes*	File content (for parse/analyze/convert)
data	array	Yes*	JSON data array (for generate)
format	string	No	Format: csv/tsv/json/xml/auto (default: auto)
from / to	string	No	Source/target format (for convert)
encoding	string	No	Content encoding: utf-8 / base64

// Parse CSV
curl -X POST https://www.jiebang.site/api/file-process \
  -H "Content-Type: application/json" \
  -d '{"action":"parse","content":"name,age\nAlice,30\nBob,25","format":"auto"}'

// Analyze data (column types, stats, nulls)
curl -X POST https://www.jiebang.site/api/file-process \
  -H "Content-Type: application/json" \
  -d '{"action":"analyze","content":"name,score\nAlice,95\nBob,87","format":"csv"}'

// JSON to CSV
curl -X POST https://www.jiebang.site/api/file-process \
  -H "Content-Type: application/json" \
  -d '{"action":"convert","content":"[{\"name\":\"Alice\",\"age\":30}]","from":"json","to":"csv"}'

// Generate TSV
curl -X POST https://www.jiebang.site/api/file-process \
  -H "Content-Type: application/json" \
  -d '{"action":"generate","data":[{"name":"Alice","age":30}],"format":"tsv"}'

Plan	Free	Pro
Requests per minute	10	60
Requests per day	100	5,000
Price	Free	$5/mo
MCP Support	✓	✓
Priority	Standard	Priority

Feature	JieBang	Bitly Free	TinyPNG Free
Short links	100/day	5/month	N/A
API Key required	No	Yes	Yes
MCP support	Yes	No	No
Image compression	Free	N/A	500/month
Tool count	12+	1	1

🛠️ JieBang Developer API

📋 REST API Endpoints

JSON ↔ YAML Converter

XML Formatter

SQL Formatter

Cron Expression Parser

Base Converter

HTML Entity Encoder/Decoder

Timezone Converter

🎨 QR Code Generator

🔍 SEO Meta Extractor

📊 SEO Health Check

🔗 URL Shortener

🖼️ Image Format Converter

⏰ Cron Task Manager

📁 File Process Center

🤖 MCP Server (AI Agent Integration)

🔑 API Key Authentication

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2. Authenticate Requests

🚀 Quick Start

1. Get API Key

2. MCP Integration

⚖️ Why JieBang API?

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