Zerosheets - Turn your Google Sheets spreadsheets into powerful API`s to rapidly develop prototypes, websites, apps and more. 500 requests per month available for free.
Zerosheets - 将您的 Google Sheets 电子表格转换为强大的 API，以快速开发原型、网站、应用程序等。每月 500 个免费请求。
IP.City — 100 Free IP geolocation requests per day
IP.City — 每天 100 个免费 IP 地理定位请求
Abstract API — API suite for various use cases, including IP geolocation, gender detection, or email validation.
抽象 API — 适用于各种用例的 API 套件，包括 IP 地理定位、性别检测或电子邮件验证。
Apify — Web scraping and automation platform to create an API for any website and extract data. Ready-made scrapers, integrated proxies, and custom solutions. Free plan with $5 platform credits included every month.
Apify - 网络抓取和自动化平台，可为任何网站创建 API 并提取数据。现成的抓取工具、集成代理和定制解决方案。免费计划，每月包含 5 美元的平台积分。
APITemplate.io - Auto-generate images and PDF documents with a simple API or automation tools like Zapier & Airtable. No CSS/HTML is required. The free plan comes with 50 images/month and three templates.
APITemplate.io - 使用简单的 API 或 Zapier 和 Airtable 等自动化工具自动生成图像和 PDF 文档。不需要 CSS/HTML。免费计划包含每月 50 张图像和三个模板。
APIToolkit.io - All the tools you need to fully understand what's going on in your APIs and Backends. With automatic API contract validation and monitoring. The free plan covers servers with up to 20,000 requests per month.
APIToolkit.io - 充分了解 API 和后端中发生的情况所需的所有工具。具有自动 API 合同验证和监控功能。免费计划涵盖每月最多 20,000 个请求的服务器。
APIVerve - Get instant access to over 120+ APIs for free, built with quality, consistency, and reliability in mind. The free plan covers up to 50 API Tokens per month.
APIVerve - 免费即时访问超过 120 多个 API，其构建时考虑到了质量、一致性和可靠性。免费计划每月最多包含 50 个 API 令牌。
Arize AI - Machine learning observability for model monitoring and root-causing issues such as data quality and performance drift. Free up to two models.
Arize AI - 用于模型监控和数据质量和性能漂移等根本问题的机器学习可观察性。最多可免费使用两个模型。
Atlas toolkit - Lightweight library to develop single-page web applications that are instantly accessible. Available for Java, Node.js, Perl, Python, and Ruby.
Atlas 工具包- 用于开发可立即访问的单页 Web 应用程序的轻量级库。适用于 Java、Node.js、Perl、Python 和 Ruby。
Beeceptor - Mock a rest API in seconds, fake API response and much more. Free 50 requests per day, public dashboard, open endpoints (anyone with a dashboard link can view submissions and answers).
Beeceptor - 在几秒钟内模拟休息 API，伪造 API 响应等等。每天免费 50 个请求、公共仪表板、开放端点（任何拥有仪表板链接的人都可以查看提交内容和答案）。
bigml.com — Hosted machine learning algorithms. Unlimited free tasks for development, limit of 16 MB data/task.
bigml.com — 托管机器学习算法。无限免费开发任务，每个任务限制 16 MB 数据。
Browse AI — Extracting and monitoring data on the web. Fifty credits per month for free.
浏览 AI — 在网络上提取和监控数据。每月五十个积分免费。
BrowserCat - Headless browser API for automation, scraping, AI agent web access, image/pdf generation, and more. Free plan with 1k requests per month.
BrowserCat - 用于自动化、抓取、AI 代理 Web 访问、图像/pdf 生成等的无头浏览器 API。免费计划，每月 1,000 次请求。
Bruzu — Automate Image production. Generate tons of Image variants with API, Integrations, or nocode sheet. API is FREE with a watermark.
Bruzu — 自动化图像制作。使用 API、集成或无代码表生成大量图像变体。 API 是免费的，带有水印。
Calendarific - Enterprise-grade Public holiday API service for over 200 countries. The free plan includes 1,000 calls per month.
Calendarific - 适用于 200 多个国家/地区的企业级公共假期 API 服务。免费计划包括每月 1,000 次通话。
Canopy - GraphQL API for Amazon.com product, search, and category data. The free plan includes 100 calls per month.
Cloudmersive — Utility API platform with full access to expansive API Library including Document Conversion, Virus Scanning, and more with 800 calls/month.
Cloudmersive — 实用 API 平台，可完全访问扩展的 API 库，包括文档转换、病毒扫描等，每月调用 800 次。
Colaboratory — Free web-based Python notebook environment with Nvidia Tesla K80 GPU.
Colaboratory — 基于 Web 的免费 Python 笔记本环境，配备 Nvidia Tesla K80 GPU。
Collect2 — Create an API endpoint to test, automate, and connect webhooks. The free plan allows for two datasets, 2000 records, one forwarder, and one alert.
Collect2 — 创建 API 端点来测试、自动化和连接 Webhook。免费计划允许两个数据集、2000 条记录、一个转发器和一个警报。
CometML - The MLOps platform for experiment tracking, model production management, model registry, and complete data lineage, covering your workflow from training to production. Free for individuals and academics.
Commerce Layer - Composable commerce API that can build, place, and manage orders from any front end. The developer plan allows 100 orders per month and up to 1,000 SKUs for free.
Conversion Tools - Online File Converter for documents, images, video, audio, and eBooks. REST API is available. Libraries for Node.js, PHP, Python. Support files up to 50 GB (for paid plans). The free tier is limited by file size and number of conversions per day.
转换工具- 用于文档、图像、视频、音频和电子书的在线文件转换器。 REST API 可用。 Node.js、PHP、Python 的库。支持最大 50 GB 的文件（对于付费计划）。免费套餐受到文件大小和每天转换次数的限制。
Country-State-City Microservice API - API and Microservice to provides a wide range of information including countries, regions, provinces, cities, postal codes, and much more. The free tier includes up to 100 requests per day.
Country-State-City Microservice API - API 和微服务提供广泛的信息，包括国家、地区、省份、城市、邮政编码等等。免费套餐每天最多包含 100 个请求。
Coupler - Data integration tool that syncs between apps. It can create live dashboards and reports, transform and manipulate values, and collect and back up insights. The free plan has unlimited users, 100 runs with 1000 monthly rows, and unlimited integrations.
CraftMyPDF - Auto-Generate PDF documents from reusable templates with a drop-and-drop editor and a simple API. The free plan comes with 100 PDFs/month and three templates.
CraftMyPDF - 使用拖放编辑器和简单的 API 从可重复使用的模板自动生成 PDF 文档。免费计划包含每月 100 个 PDF 和三个模板。
CurlHub — Proxy service for inspecting and debugging API calls. The free plan includes 10,000 requests per month.
CurlHub — 用于检查和调试 API 调用的代理服务。免费计划包括每月 10,000 个请求。
CurrencyScoop - Realtime currency data API for fintech apps. The free plan includes 5,000 calls per month.
Cube - Cube helps data engineers and application developers access data from modern data stores, organize it into consistent definitions, and deliver it to every application. The fastest way to use Cube is with Cube Cloud, which has a free tier with 1GB of data passing through each month.
Data Dead Drop - Simple, free file sharing. Data self-destroys after access. Upload and download data via the browser or your favorite command line client.
Data Dead Drop - 简单、免费的文件共享。数据在访问后会自行销毁。通过浏览器或您最喜欢的命令行客户端上传和下载数据。
Data Fetcher - Connect Airtable to any application or API with no code. Postman-like interface for running API requests in Airtable. Pre-built integrations with dozens of apps. The free plan includes 100 runs per month.
DB-IP - Free IP geolocation API with 1k request per IP per day.lite database under the CC-BY 4.0 License is free too.
DB-IP - 免费的 IP 地理定位 API，每个 IP 每天有 1k 请求。CC-BY 4.0 许可证下的 Lite 数据库也是免费的。
DB Designer — Cloud-based Database schema design and modeling tool with a free starter plan of 2 Database models and ten tables per model.
DB Designer — 基于云的数据库模式设计和建模工具，提供 2 个数据库模型和每个模型 10 个表的免费入门计划。
DeepAR — Augmented reality face filters for any platform with one SDK. The free plan provides up to 10 monthly active users (MAU) and tracks up to 4 faces
Deepnote - A new data science notebook. Jupyter is compatible with real-time collaboration and running in the cloud. The free tier includes unlimited personal projects, up to 750 hours of standard hardware, and teams with up to 3 editors.
Diggernaut — Cloud-based web scraping and data extraction platform for turning any website to the dataset or working with it as an API. The free plan includes 5K page requests monthly.
Diggernaut - 基于云的网络抓取和数据提取平台，用于将任何网站转换为数据集或将其作为 API 使用。免费计划包括每月 5K 页面请求。
Disease.sh — A free API providing accurate data for building the Covid-19 related useful Apps.
疾病.sh — 一个免费的 API，为构建 Covid-19 相关的有用应用程序提供准确的数据。
Doczilla — SaaS API empowering the generation of screenshots or PDFs directly from HTML/CSS/JS code. The free plan allows 250 documents month.
Doczilla — SaaS API 支持直接从 HTML/CSS/JS 代码生成屏幕截图或 PDF。免费计划每月允许 250 个文档。
Doppio — Managed API to generate and privately store PDFs and Screenshots using top rendering technology. The free plan allows 400 PDFs and Screenshots per month.
Doppio — 使用顶级渲染技术生成和私密存储 PDF 和屏幕截图的托管 API。免费计划每月允许 400 个 PDF 和屏幕截图。
dreamfactory.com — Open source REST API backend for mobile, web, and IoT applications. Hook up any SQL/NoSQL database, file storage system, or external service, and it instantly creates a comprehensive REST API platform with live documentation and user management.
dreamfactory.com — 适用于移动、Web 和 IoT 应用程序的开源 REST API 后端。连接任何 SQL/NoSQL 数据库、文件存储系统或外部服务，它会立即创建一个具有实时文档和用户管理的综合 REST API 平台。
DynamicDocs - Generate PDF documents with JSON to PDF API based on LaTeX templates. The free plan allows 50 API calls per month and access to a library of templates.
DynamicDocs - 基于 LaTeX 模板，使用 JSON 到 PDF API 生成 PDF 文档。免费计划允许每月 50 次 API 调用并访问模板库。
Efemarai - Testing and debugging platform for ML models and data. Visualize any computational graph. Free 30 debugging sessions per month for developers.
Efemarai - ML 模型和数据的测试和调试平台。可视化任何计算图。每月为开发人员免费提供 30 次调试会话。
ExtendsClass - Free web-based HTTP client to send HTTP requests.
ExtendsClass - 用于发送 HTTP 请求的免费的基于 Web 的 HTTP 客户端。
Export SDK - PDF generator API with drag-and-drop template editor that provides an SDK and no-code integrations. The free plan has 250 monthly pages, unlimited users, and three templates.
导出 SDK - PDF 生成器 API，带有拖放模板编辑器，提供 SDK 和无代码集成。免费计划包含 250 个每月页面、无限用户和三个模板。
Fern - Use your API definition to generate SDKs in popular languages, and generate API reference documentation webpages. Add Markdown pages to your API reference and host them with Fern for a full documentation solution. OpenAPI fully supported.
Fern - 使用您的 API 定义生成流行语言的 SDK，并生成 API 参考文档网页。将 Markdown 页面添加到您的 API 参考中，并使用 Fern 托管它们以获得完整的文档解决方案。完全支持 OpenAPI。
file.coffee - A platform where you can store up to 15MB/file (30/MB file with an account).
FraudLabs Pro — Screen an order transaction for credit card payment fraud. This REST API will detect all possible fraud traits based on the input parameters of an order. The Free Micro plan has 500 transactions per month.
FraudLabs Pro — 筛查订单交易是否存在信用卡支付欺诈行为。该 REST API 将根据订单的输入参数检测所有可能的欺诈特征。免费微型计划每月有 500 笔交易。
Geekflare API - Geekflare API lets you take screenshots, audit websites, TLS scan, DNS lookup, test TTFB, and more. The free plan offers 3,000 API requests.
Geekflare API - Geekflare API 可让您截取屏幕截图、审核网站、TLS 扫描、DNS 查找、测试 TTFB 等。免费计划提供 3,000 个 API 请求。
GeoCod — Free geocoding API: Convert postal addresses into geographic coordinates or convert geographic coordinates into postal addresses (reverse geocoding).
GeoDataSource — Location search service looks up city names using latitude and longitude coordinates. Free API queries up to 500 times per month.
GeoDataSource — 位置搜索服务使用纬度和经度坐标查找城市名称。每月最多免费 API 查询 500 次。
Geolocated.io — IP Geolocation API with multi-continent servers, offering a forever free plan with 60000 requests per month for hobbyists.
Geolocated.io — 具有多洲服务器的 IP 地理定位 API，为爱好者提供每月 60000 个请求的永久免费计划。
Glitterly - Programmatically generate dynamic images from base templates. Restful API and nocode integrations. The free tier comes with 50 images/month and five templates.
Hex - a collaborative data platform for notebooks, data apps, and knowledge libraries. Free community version with up to 3 authors and five projects. One compute profile per author with 4GB RAM.
Hook0 - Hook0 is an open-source Webhooks-as-a-service (WaaS) that makes it easy for online products to provide webhooks. Dispatch up to 3,000 events/month with seven days of history retention for free.
Hoppscotch - A free, fast, and beautiful API request builder.
Hoppscotch - 一个免费、快速且美观的 API 请求生成器。
Hybiscus - Build pdf reports using a simple declarative API. The free tier includes up to 100 single-page reports per month with the ability to customize color palettes and fonts.
Hybiscus - 使用简单的声明式 API 构建 pdf 报告。免费套餐包括每月最多 100 个单页报告，并且能够自定义调色板和字体。
Invantive Cloud — Access over 70 (cloud)platforms such as Exact Online, Twinfield, ActiveCampaign or Visma using Invantive SQL or OData4 (typically Power BI or Power Query). Includes data replication and exchange. Free plan for developers and implementation consultants. Free for specific platforms with limitations in data volumes.
Invantive Cloud — 使用 Invantive SQL 或 OData4（通常是 Power BI 或 Power Query）访问 70 多个（云）平台，例如 Exact Online、Twinfield、ActiveCampaign 或 Visma。包括数据复制和交换。为开发人员和实施顾问提供免费计划。对于数据量有限的特定平台免费。
ipaddress.sh — Simple service to get a public IP address in different formats.
ipaddress.sh — 获取不同格式的公共 IP 地址的简单服务。
ipbase.com - IP Geolocation API - Forever free plan that spans 150 monthly requests.
ipbase.com - IP 地理定位 API - 永久免费计划，涵盖 150 个每月请求。
IP Geolocation — IP Geolocation API - Forever free plan for developers with 30k requests per month (1k/day) limit.
IP 地理定位— IP 地理定位 API - 为开发人员提供永久免费计划，每月 30k 请求（1k/天）限制。
IP Geolocation API — IP Geolocation API from Abstract - Extensive free plan allowing 20,000 monthly requests.
IP 地理定位 API — 摘要中的 IP 地理定位 API - 广泛的免费计划，允许每月 20,000 个请求。
IP2Location — Freemium IP geolocation service. LITE database is available for free download. Import the database in the server and perform a local query to determine the city, coordinates, and ISP information.
IP2Location — 免费增值 IP 地理定位服务。 LITE 数据库可供免费下载。导入服务器中的数据库并执行本地查询以确定城市、坐标和ISP信息。
IP2Location.io — Freemium, fast and reliable IP geolocation API to determine geolocation data like city, coordinates, ISP, etc. The free plan is available with 30k credits per month. Subscribe to paid plans for more advanced features or contact us for a personalized plan.
IP2Location.io — 免费增值、快速可靠的 IP 地理定位 API，用于确定城市、坐标、ISP 等地理定位数据。免费计划每月提供 30k 积分。订阅付费计划以获取更多高级功能，或联系我们获取个性化计划。
ipapi - IP Address Location API by Kloudend, Inc - A reliable geolocation API built on AWS, trusted by Fortune 500. The free tier offers 30k lookups/month (1k/day) without signup.
ipapi - Kloudend, Inc 的 IP 地址定位 API - 基于 AWS 构建的可靠地理定位 API，受到财富 500 强企业的信赖。免费套餐每月提供 30k 次查找（1k/天），无需注册。
ipapi.is - A reliable IP Address API from Developers for Developers with the best Hosting Detection capabilities that exist. The free plan offers 1000 lookups without signup.
ipapi.is - 来自开发人员为开发人员提供的可靠 IP 地址 API，具有现有的最佳托管检测功能。免费计划提供 1000 次查询，无需注册。
IPinfo — Fast, accurate, and free (up to 50k/month) IP address data API. Offers APIs with details on geolocation, companies, carriers, IP ranges, domains, abuse contacts, and more. All paid APIs can be trialed for free.
IPinfo — 快速、准确且免费（高达 50k/月）的 IP 地址数据 API。提供包含地理位置、公司、运营商、IP 范围、域、滥用联系人等详细信息的 API。所有付费API均可免费试用。
BigDataCloud - Provides fast, accurate, and free (Unlimited or up to 10K-50K/month) APIs for modern web like IP Geolocation, Reverse Geocoding, Networking Insights, Email and Phone Validation, Client Info and more.
BigDataCloud - 为现代网络提供快速、准确且免费（无限制或高达 10K-50K/月）的 API，例如 IP 地理定位、反向地理编码、网络洞察、电子邮件和电话验证、客户信息等。
IPTrace — An embarrassingly simple API that provides your business with reliable and helpful IP geolocation data.
IPTrace — 一个极其简单的 API，可为您的企业提供可靠且有用的 IP 地理定位数据。
JSON2Video - A video editing API to automate video marketing and social media videos, programmatically or with no code.
JSON IP — Returns the Public IP address of the client it is requested from. No registration is required for the free tier. Using CORS, data can be requested using client-side JS directly from the browser. Useful for services monitoring change in client and server IPs. Unlimited Requests.
JSON IP — 返回请求的客户端的公共 IP 地址。免费套餐无需注册。使用 CORS，可以使用客户端 JS 直接从浏览器请求数据。对于监控客户端和服务器 IP 变化的服务很有用。无限请求。
JSON Serve — A free service that helps developers to store JSON objects and use that JSON as a REST API in their app.
konghq.com — API Marketplace and powerful private and public API tools. With the free tier, some features such as monitoring, alerting, and support, are limited.
konghq.com — API 市场以及强大的私有和公共 API 工具。对于免费套餐，某些功能（例如监控、警报和支持）受到限制。
Kreya — Free gRPC GUI client to call and test gRPC APIs. Can import gRPC APIs via server reflection.
MailboxValidator — Email verification service using real mail server connection to confirm valid email. The free API plan has 300 verifications per month.
MailboxValidator — 使用真实邮件服务器连接来确认有效电子邮件的电子邮件验证服务。免费 API 计划每月有 300 次验证。
Market Data API - Provides real-time and historical financial data for stocks, options, mutual funds, and more. The Free Forever API tier allows for 100 daily API requests at no charge.
市场数据 API - 提供股票、期权、共同基金等的实时和历史财务数据。永久免费 API 层允许每天免费进行 100 个 API 请求。
Meteosource Weather API — global weather API for current and forecasted weather data. Forecasts are based on a machine learning combination of more weather models to achieve better accuracy. The free plan comes with 400 calls per day.
Meteosource Weather API — 用于当前和预报天气数据的全球天气 API。预测基于更多天气模型的机器学习组合，以实现更高的准确性。免费套餐每天可拨打 400 个电话。
microlink.io – It turns any website into data such as metatags normalization, beauty link previews, scraping capabilities, or screenshots as a service. One hundred reqs/day, every day free.
Mindee – Mindee is a powerful OCR software and an API-first platform that helps developers automate applications' workflows by standardizing the document processing layer through data recognition for key information using computer vision and machine learning. The free tier offers 250 pages per month.
Mindee – Mindee 是一款功能强大的 OCR 软件和 API 优先平台，可帮助开发人员通过使用计算机视觉和机器学习对关键信息进行数据识别来标准化文档处理层，从而实现应用程序工作流程的自动化。免费套餐每月提供 250 页。
Mintlify — Modern standard for API documentation. Beautiful and easy-to-maintain UI components, in-app search, and interactive playground. Free for 1 editor.
Mintlify — API 文档的现代标准。美观且易于维护的 UI 组件、应用内搜索和交互式游乐场。 1 名编辑免费。
monkeylearn.com — Text analysis with machine learning, free 300 queries/month.
Monkeylearn.com — 使用机器学习进行文本分析，每月免费 300 次查询。
MockAPI — MockAPI is a simple tool that lets you quickly mock up APIs, generate custom data, and perform operations using a RESTful interface. MockAPI is meant to be a prototyping/testing/learning tool. One project/4 resources per project for free.
Mockfly — Mockfly is a trusted development tool for API mocking and feature flag management. Quickly generate and control mock APIs with an intuitive interface. The free tier offers 500 requests per day.
Mockfly — Mockfly 是一个值得信赖的 API 模拟和功能标志管理开发工具。通过直观的界面快速生成和控制模拟 API。免费套餐每天提供 500 个请求。
Mocki - A tool that lets you create mock GraphQL and REST APIs synced to a GitHub repository. Simple REST APIs are free to develop and use without signup.
Mocko.dev — Proxy your API, choose which endpoints to mock in the cloud and inspect traffic, for free. Speed up your development and integration tests.
Multi-Exit IP Address Checker — A free and simple tool to check your exit IP address across multiple nodes and understand how your IP appears to different global regions and services. Useful for testing rule-based DNS splitting tools such as Control D.
多出口 IP 地址检查器— 一个免费且简单的工具，用于跨多个节点检查您的出口 IP 地址，并了解您的 IP 在不同的全球区域和服务中的显示方式。对于测试基于规则的 DNS 分割工具（例如 Control D）很有用。
neptune.ai - Log, store, display, organize, compare, and query all your MLOps metadata. Free for individuals: 1 member, 100 GB of metadata storage, 200h of monitoring/month
Nyckel — Train, deploy, and invoke image and text ML models. Free training with up to 5,000 pieces of training data. 1000 model invokes per month free.
Nyckel — 训练、部署和调用图像和文本 ML 模型。免费训练，最多5000条训练数据。每月免费调用 1000 次模型。
Observable — a place to create, collaborate, and learn with data. Free: Unlimited notebooks, Unlimited publishing, Five editors per notebook.
OCR.Space — An OCR API parses image and pdf files that return the text results in JSON format. Twenty-five thousand requests per month are free.
OCR.Space — OCR API 解析图像和 pdf 文件，并以 JSON 格式返回文本结果。每月 25000 个请求是免费的。
Duply.co — Create dynamic images from API & URL, design template once and reuse it. The free tier offers 70 images/month creation from API & URL and Up to 100 through Form.
Duply.co — 从 API 和 URL 创建动态图像，设计模板一次并重复使用。免费套餐每月提供 70 个通过 API 和 URL 创建的图像，以及通过表单创建的最多 100 个图像。
OpenAPI3 Designer — Visually create Open API 3 definitions for free.
OpenAPI3 Designer — 免费直观地创建 Open API 3 定义。
parsehub.com — Extract data from dynamic sites, turn dynamic websites into APIs, five projects free.
parsehub.com — 从动态网站中提取数据，将动态网站转换为 API，五个项目免费。
pdfEndpoint.com - Effortlessly convert HTML or URLs to PDF with a simple API. One hundred conversions per month for free.
pdfEndpoint.com - 使用简单的 API 轻松将 HTML 或 URL 转换为 PDF。每月免费一百次转换。
PDF-API.io - PDF Automation API, visual template editor or HTML to PDF, dynamic data integration, and PDF rendering with an API. The free plan comes with one template, 100 PDFs/month.
PDF-API.io - PDF 自动化 API、可视化模板编辑器或 HTML 到 PDF、动态数据集成以及使用 API 的 PDF 渲染。免费计划附带一个模板，每月 100 个 PDF。
Pixela - Free daystream database service. All operations are performed by API. Visualization with heat maps and line graphs is also possible.
Postbacks - Request HTTP callbacks for a later time. Eight thousand free requests on signup.
回发- 稍后请求 HTTP 回调。注册时可获得八千个免费请求。
Postman — Simplify workflows and create better APIs – faster – with Postman, a collaboration platform for API development. Use the Postman App for free forever. Postman cloud features are also free forever with certain limits.
Postman — 使用 Postman（一个用于 API 开发的协作平台）简化工作流程并更快地创建更好的 API。永久免费使用邮递员应用程序。 Postman 云功能也是永久免费的，但有一定限制。
Insomnia - Open-source API client for designing and testing APIs, it supports REST and GraphQL
Insomnia - 用于设计和测试 API 的开源 API 客户端，它支持 REST 和 GraphQL
PrefectCloud — A complete platform for dataflow automation. All plans include 20,000 free runs every month. That's enough to power ETL for most small businesses.
Preset Cloud - A hosted Apache Superset service. Forever free for teams of up to 5 users, featuring unlimited dashboards and charts, a no-code chart builder, and a collaborative SQL editor.
PromptLeo - Prompt engineering platform for creators and developers. It offers a prompt engineering library, forms, and API. The free plan provides one prompt formation, one prompt API endpoint, and 30 generations per month.
PromptLeo - 为创作者和开发者提供的提示工程平台。它提供了快速的工程库、表单和API。免费套餐提供 1 个即时生成、1 个即时 API 端点、每月 30 代。
PromptLoop - Use AI and large language models like GPT-3 with a simple spreadsheet formula to transform, comprehend, and analyze text in Google Sheets. The first 2,000 credits are free each month.
PromptLoop - 使用 AI 和 GPT-3 等大型语言模型以及简单的电子表格公式来转换、理解和分析 Google 表格中的文本。每月前 2,000 个积分免费。
Crawlbase — Crawl and scrape websites without proxies, infrastructure, or browsers. We solve captchas for you and prevent you from being blocked. The first 1000 calls are free of charge.
QuickMocker — Manage online fake API endpoints under your own subdomain, forward requests to localhost URL for webhooks development and testing, use RegExp and multiple HTTP methods for URL path, prioritize endpoints, more than 100 shortcodes (dynamic or fake response values) for response templating, import from OpenAPI (Swagger) Specifications in JSON format, proxy requests, restrict endpoint by IP address and authorization header. The free account provides one random subdomain, ten endpoints, 5 RegExp URL paths, 50 shortcodes per endpoint, 100 requests per day, and 50 history records in the requests log.
Rapidapi - World’s Largest API Hub Millions of developers find and connect to thousands of APIs, API Development using fun challenges (with solutions!) and interactive examples.
Rapidapi - 世界上最大的 API 中心 数以百万计的开发人员发现并连接到数千个 API，使用有趣的挑战（带有解决方案！）和交互式示例进行 API 开发。
RequestBin.com — Create a free endpoint to which you can send HTTP requests. Any HTTP requests sent to that endpoint will be recorded with the associated payload and headers so you can observe recommendations from webhooks and other services.
Roboflow - create and deploy a custom computer vision model with no prior machine learning experience required. The free tier includes up to 1,000 free source images.
ROBOHASH - Web service to generate unique and cool images from any text.
ROBOHASH - 从任何文本生成独特且炫酷的图像的 Web 服务。
SaturnCloud - Data science cloud environment that allows running Jupyter notebooks and Dask clusters. Thirty hours of free computation and 3 hours of Dask per month.
Scraper's Proxy — Simple HTTP proxy API for scraping. Scrape anonymously without having to worry about restrictions, blocks, or captchas. First 100 successful scrapes per month free including javascript rendering (more available if you contact support).
ScrapingAnt — Headless Chrome scraping API and free checked proxies service. Javascript rendering, premium rotating proxies, CAPTCHAs avoiding. Free plans are available.
ScrapingAnt — 无头 Chrome 抓取 API 和免费检查代理服务。 JavaScript 渲染、高级旋转代理、避免验证码。提供免费计划。
ScraperBox — Undetectable web scraping API using real Chrome browsers and proxy rotation. Use a simple API call to scrape any web page. The free plan has 1000 requests per month.
ScraperBox — 使用真正的 Chrome 浏览器和代理轮换的不可检测的网页抓取 API。使用简单的 API 调用即可抓取任何网页。免费计划每月有 1000 个请求。
ScrapingDog — Scrapingdog handles millions of proxies, browsers, and CAPTCHAs to provide you with the HTML of any web page in a single API call. It also includes Web Scraper for Chrome & Firefox and software for instant scraping demand. Free plans are available.
ScrapingDog — Scrapingdog 处理数百万个代理、浏览器和验证码，以便在单个 API 调用中为您提供任何网页的 HTML。它还包括适用于 Chrome 和 Firefox 的 Web Scraper 以及满足即时抓取需求的软件。提供免费计划。
scrapinghub.com — Data scraping with visual interface and plugins. The free plan includes unlimited scraping on a shared server.
Select Star - is an intelligent data discovery platform that automatically analyzes and documents your data. Free light tier with 1 Data Source, up to 100 Tables and 10 Users.
Select Star - 是一个智能数据发现平台，可自动分析和记录您的数据。免费轻型层，具有 1 个数据源、最多 100 个表和 10 个用户。
Sheetson - Instantly turn any Google Sheets into a RESTful API. Free plan available.
Sheetson - 立即将任何 Google Sheets 转换为 RESTful API。提供免费计划。
Shipyard — Low-code data orchestration platform for the cloud. Build with a mix of low-code templates and your code (Python, Node.js, Bash, SQL). Our free developer plan offers 10 hours of runtime every month for one user - more than enough to automate multiple workflows.
shrtcode API - Free URL Shortening API without authorization and no request limits.
shrtcode API - 免费 URL 缩短 API，无需授权，无请求限制。
SerpApi - Real-time search engine scraping API. Returns structured JSON results for Google, YouTube, Bing, Baidu, Walmart, and many other machines. The free plan includes 100 successful API calls per month.
SmartParse - SmartParse is a data migration and CSV to API platform that offers time- and cost-saving developer tools. The Free tier includes 300 Processing Units per month, Browser uploads, Data quarantining, Circuit breakers, and Job Alerts.
SmartParse - SmartParse 是一个数据迁移和 CSV 到 API 平台，提供节省时间和成本的开发人员工具。免费套餐包括每月 300 个处理单元、浏览器上传、数据隔离、断路器和作业警报。
Sofodata - Create secure RESTful APIs from CSV files. Upload a CSV file and instantly access the data via its API allowing faster application development. The free plan includes 2 APIs and 2,500 API calls per month. You don't need a credit card.
Sofodata - 从 CSV 文件创建安全的 RESTful API。上传 CSV 文件并通过其 API 立即访问数据，从而加快应用程序开发速度。免费计划包括 2 个 API 和每月 2,500 次 API 调用。您不需要信用卡。
Sqlable - A collection of free online SQL tools, including an SQL formatter and validator, SQL regex tester, fake data generator, and interactive database playgrounds.
Stoplight - Saas for collaboratively designing and documenting for APIs. The free plan offers free design, mocking, and documentation tools.
Stoplight - 用于协作设计和记录 API 的 Saas。免费计划提供免费的设计、模拟和文档工具。
Svix - Webhooks as a Service. Send up to 50,000 messages/month for free.
Svix - Webhooks 即服务。每月免费发送多达 50,000 条消息。
TemplateTo - Auto-Generate PDF/TXT documents from reusable templates with our drop-and-drop editor and simple API. The free plan comes with 450 PDFs/month and three templates.
TemplateTo - 使用我们的拖放编辑器和简单的 API 从可重复使用的模板自动生成 PDF/TXT 文档。免费计划包含 450 个 PDF/月和三个模板。
TinyMCE - rich text editing API. Core features are free for unlimited usage.
TinyMCE - 富文本编辑 API。核心功能免费，无限制使用。
Treblle - Treblle helps teams build, ship, and govern APIs. With advanced API log aggregation, observability, docs, and debugging. You get all features for free, but there is a limit of up to 250k requests per month on the free tier.
Treblle - Treblle 帮助团队构建、发布和管理 API。具有高级 API 日志聚合、可观察性、文档和调试。您可以免费获得所有功能，但免费套餐每月最多有 25 万个请求的限制。
Webhook Store - Tool for storing third-party webhooks and debug them on localhost (ngrok style). Open source and self-hostable. Free personal domain username.github.webhook.store, free public domains anything.webhook.store.
Webhook Store - 用于存储第三方 Webhook 并在本地主机上调试它们的工具（ngrok 风格）。开源且可自行托管。免费个人域名用户名.github.webhook.store，免费公共域名任何内容.webhook.store。
Weights & Biases — The developer-first MLOps platform. Build better models faster with experiment tracking, dataset versioning, and model management. Free tier for personal projects only, with 100 GB of storage included.
wolfram.com — Built-in knowledge-based algorithms in the cloud.
Wolfram.com — 云端内置基于知识的算法。
wrapapi.com — Turn any website into a parameterized API. 30k API calls per month.
wrapapi.com — 将任何网站转变为参数化 API。每月 30,000 次 API 调用。
ZenRows — Web Scraping API & proxy server that bypasses any anti-bot solution while offering javascript rendering, rotating proxies, and geotargeting. The free tier of 1000 API calls.
ZenRows — Web 抓取 API 和代理服务器，可绕过任何反机器人解决方案，同时提供 JavaScript 渲染、旋转代理和地理定位。 1000 次 API 调用的免费套餐。
Zenscrape — Web scraping API with headless browsers, residentials IPs, and straightforward pricing. One thousand free API calls/month and extra credits for students and non-profits.
Zenscrape — 具有无头浏览器、住宅 IP 和简单定价的 Web 抓取 API。每月 1000 次免费 API 调用，并为学生和非营利组织提供额外学分。
ip-api — IP Geolocation API, Free for non-commercial use, no API key required, limited to 45 req/minute from the same IP address for the free plan.
ip-api — IP 地理定位 API，免费用于非商业用途，无需 API 密钥，免费计划的同一 IP 地址限制为 45 个请求/分钟。
WebScraping.AI - Simple Web Scraping API with built-in parsing, Chrome rendering, and proxies. Two thousand free API calls per month.
WebScraping.AI - 简单的 Web Scraping API，具有内置解析、Chrome 渲染和代理。每月 2000 次免费 API 调用。
Zipcodebase - Free Zip Code API, access to Worldwide Postal Code Data. Ten thousand free requests/month.
Zipcodebase - 免费邮政编码 API，访问全球邮政编码数据。每月一万个免费请求。
huggingface.co - Build, train, and deploy NLP models for Pytorch, TensorFlow, and JAX. Free up to 30k input characters/mo.
vatcheckapi.com - Simple and free VAT number validation API. Five hundred free requests per month.
vatcheckapi.com - 简单且免费的增值税号验证 API。每月五百个免费请求。
numlookupapi.com - Free phone number validation API - 100k free requests / month.
numlookupapi.com - 免费电话号码验证 API - 每月 10 万个免费请求。
Volca - Free API providing lists of technologies such as programming languages and database systems. Unlimited free requests.
Volca - 免费 API，提供编程语言和数据库系统等技术列表。无限制的免费请求。
Query.me - Collaborative data notebooks that execute script-like and allow to fetch and send data via SQL, API, and many custom blocks, like Slack and Email. Free for small Teams.
ERD Lab — Free cloud-based entity relationship diagram (ERD) tool made for developers.
ERD Lab — 为开发人员打造的免费的基于云的实体关系图 (ERD) 工具。
What The Diff - AI-powered code review assistant. The free plan has a limit of 25,000 monthly tokens (~10 PRs).
区别是什么- AI 支持的代码审查助手。免费计划的每月限额为 25,000 个代币（约 10 个 PR）。
Zipcodestack - Free Zip Code API and Postal Code Validation. Ten thousand free requests/month.
Zipcodestack - 免费邮政编码 API 和邮政编码验证。每月一万个免费请求。
Zuplo - Add API Key authentication, rate limiting, and developer documentation to any API in minutes. The free plan offers up to 10 projects, unlimited production edge environments, 250 API keys, 100K monthly requests, and 1GB egress.
Zuplo - 在几分钟内将 API 密钥身份验证、速率限制和开发人员文档添加到任何 API。免费计划提供最多 10 个项目、无限的生产边缘环境、250 个 API 密钥、每月 100K 请求和 1GB 出口。
OpenWeb Ninja - Extremely comprehensive real-time SERP and public data APIs: Google Search, Shopping, Jobs, Images, Lens, News, Google Maps Businesses / Places, Reviews, Photos, Website Emails and Social Contacts Scraper, Amazon, Yelp and more. All APIs include a free tier with 100 to 200 free monthly requests.
Tavily AI - API for online serach and rapid insights and comprehensive research, with the capability of organization of research results. 1000 request/month for the Free tier with No credit card required.
Tavilly AI - 用于在线搜索、快速洞察和综合研究的 API，具有组织研究结果的能力。免费套餐每月 1000 个请求，无需信用卡。
Zuplo - Free API Management platform to design, build, and deploy APIs to the Edge. Add Authentication, Rate Limiting, API Documentation, and Monetization in minutes. OpenAPI-native and fully-programmable with web standard apis & Typescript.
Composio - Integration platform for AI Agents and LLMs. Integrate over 200+ tools across the agentic internet.
Composio - AI 代理和LLMs的集成平台。跨代理互联网集成 200 多种工具。
WeatherXu — Global weather data including current conditions, hourly and daily forecasts, and weather alerts via our API. Integrating AI models and ML systems to analyze and combine multiple weather models to deliver improved forecast accuracy. Free tier includes 10,000 API calls/month.
WeatherXu — 全球天气数据，包括当前状况、每小时和每日预报以及通过我们的 API 发出的天气警报。集成年人工智能模型和机器学习系统来分析和组合多个天气模型，以提高预报准确性。免费套餐包括每月 10,000 次 API 调用。) ]9 v2 r: W1 t0 P
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