# AI tools for “REST API integration”

1,576 matching tools; showing 24, ranked by relevance.

Filters: `group=coding-development`

Related categories: [ai-api](https://openaitools.app/category/ai-api.md)

| # | Tool Name | Monthly Visits | MoM Growth Rate | Pricing Model | Summary | Why it matched | Profile (Markdown) |
| :--- | :--- | :--- | :--- | :--- | :--- | :--- | :--- |
| 1 | [PDF.co](https://openaitools.app/tool/pdf-co) | 78,590 | -8.2% | Free Trial, Paid | REST API to convert, edit and extract data from PDFs | category: ai-api; keywords 100%; semantic match | [.md](https://openaitools.app/tool/pdf-co.md) |
| 2 | [useapi.net](https://openaitools.app/tool/third-party-api-for-popular-ai-services) | 27,680 | -12.8% | Paid | One subscription, rest APIs for Google Flow, Kling, Runway, MiniMax, Mureka and more | category: ai-api; keywords 100%; semantic match | [.md](https://openaitools.app/tool/third-party-api-for-popular-ai-services.md) |
| 3 | [Stable Diffusion API](https://openaitools.app/tool/stablediffusion-api) | 26,802 | -21.8% | Paid | One REST endpoint for SD 1.5, SDXL, Flux and 10,000+ community models | category: ai-api; keywords 100%; semantic match | [.md](https://openaitools.app/tool/stablediffusion-api.md) |
| 4 | [Flaq AI](https://openaitools.app/tool/flaq-ai-api-platform) | 328,715 | +127.9% | Paid | One API key for the world's leading image, video and language models | category: ai-api; keywords 100%; semantic match | [.md](https://openaitools.app/tool/flaq-ai-api-platform.md) |
| 5 | [OpenRouter](https://openaitools.app/tool/openrouter-ai) | 19,941,437 | -6.2% | Paid | One API key for hundreds of AI models from every major provider | category: ai-api; semantic match | [.md](https://openaitools.app/tool/openrouter-ai.md) |
| 6 | [ColdIQ](https://openaitools.app/tool/coldiq-x-slack) | 195,701 | -14.8% | Freemium, Paid, Contact for Pricing | One GTM data API for prospecting, enrichment and AI agents | category: ai-api; keywords 100%; semantic match | [.md](https://openaitools.app/tool/coldiq-x-slack.md) |
| 7 | [DeepSeek](https://openaitools.app/tool/deepseek) | 372,761,591 | +4.3% | Freemium | High-efficiency open-weight and hosted reasoning AI powered by DeepSeek-V4 and R1 at ultra-low token costs. | category: ai-api | [.md](https://openaitools.app/tool/deepseek.md) |
| 8 | [Claude](https://openaitools.app/tool/claude-2) | 1,253,439,413 | +23.8% | Freemium | Anthropic's frontier AI workspace powered by Claude 5.5 for agentic coding, analysis, and nuanced writing. | category: ai-api | [.md](https://openaitools.app/tool/claude-2.md) |
| 9 | [LinkupAPI](https://openaitools.app/tool/linkupapi) | 37,347 | +7.1% | Paid | One outreach API to reach prospects on LinkedIn, email, WhatsApp and iMessage | category: ai-api; keywords 100%; semantic match | [.md](https://openaitools.app/tool/linkupapi.md) |
| 10 | [OpenAI Platform](https://openaitools.app/tool/openai) | 234,678,639 | -9.6% | Paid | Enterprise developer platform and API for deploying GPT-6 Astra, Sol, Luna, and realtime multimodal agents. | category: ai-api | [.md](https://openaitools.app/tool/openai.md) |
| 11 | [Merge](https://openaitools.app/tool/merge-dev) | 313,201 | +1.7% | Freemium, Contact for Pricing | The universal context engine connecting agents to data, tools, and models | category: ai-api; semantic match | [.md](https://openaitools.app/tool/merge-dev.md) |
| 12 | [noCaptcha: Automatic CAPTCHA Solver](https://openaitools.app/tool/nocaptcha-automatic-captcha-solver) | 22,240 | +27.7% | Freemium, Paid | Solve reCAPTCHA, Cloudflare and more in under 0.7 seconds | category: ai-api; keywords 100%; semantic match | [.md](https://openaitools.app/tool/nocaptcha-automatic-captcha-solver.md) |
| 13 | [Kie.ai](https://openaitools.app/tool/kie-ai-affordable-secure-deepseek-r1-api) | 2,275,553 | -22.4% | Pay-as-you-go | One API key for video, image, music, and chat models | category: ai-api; semantic match | [.md](https://openaitools.app/tool/kie-ai-affordable-secure-deepseek-r1-api.md) |
| 14 | [Composio](https://openaitools.app/tool/composio) | 2,782,603 | +22.8% | Freemium, Contact for Pricing | Give your AI agents secure, authenticated access to 1,700+ apps | category: ai-api; semantic match | [.md](https://openaitools.app/tool/composio.md) |
| 15 | [CometAPI](https://openaitools.app/tool/cometapi) | 602,966 | +49.7% | Pay-as-you-go (credits) | One OpenAI-compatible API key for 500+ AI models | category: ai-api; semantic match | [.md](https://openaitools.app/tool/cometapi.md) |
| 16 | [RealEstateAPI](https://openaitools.app/tool/realestateapi-com) | 14,589 | +3.4% | Contact for Pricing | Developer-first API for U.S. property data, valuations and address verification | category: ai-api; keywords 77%; semantic match | [.md](https://openaitools.app/tool/realestateapi-com.md) |
| 17 | [Pipedream](https://openaitools.app/tool/pipedream) | 312,216 | -14.3% | Freemium, Paid, Contact for Pricing | Managed auth and 10,000+ tools for the agents you're building | category: ai-api; semantic match | [.md](https://openaitools.app/tool/pipedream.md) |
| 18 | [SharpAPI](https://openaitools.app/tool/sharpapi) | 3,053 | +158.1% | Free Trial, Contact for Pricing | Pre-built AI API endpoints that return clean JSON | category: ai-api; keywords 100%; semantic match | [.md](https://openaitools.app/tool/sharpapi.md) |
| 19 | [Postman](https://openaitools.app/tool/postman) | 1,764,877 | -7.6% | Freemium | Design, test, and govern APIs — now with AI agents in the loop | category: ai-api; semantic match | [.md](https://openaitools.app/tool/postman.md) |
| 20 | [Buildify](https://openaitools.app/tool/buildify) | 4,748 | -14.3% | Contact for Pricing | Canada's pre-construction home listings API for real estate platforms | category: ai-api; keywords 100%; semantic match | [.md](https://openaitools.app/tool/buildify.md) |
| 21 | [Treg](https://openaitools.app/tool/treg) | 452,935 | +223.4% | Freemium | One key for 4,100+ agent tools, pay per call | category: ai-api; semantic match | [.md](https://openaitools.app/tool/treg.md) |
| 22 | [AI Video API](https://openaitools.app/tool/ai-video-api) | 4,425 | -3.8% | Freemium, Paid | One REST endpoint for text-to-video and image-to-video generation | category: ai-api; keywords 100%; semantic match | [.md](https://openaitools.app/tool/ai-video-api.md) |
| 23 | [OfoxAI](https://openaitools.app/tool/ofoxai) | 239,718 | +12.7% | — | One API key, 100+ LLMs, official pricing with no platform markup | category: ai-api; semantic match | [.md](https://openaitools.app/tool/ofoxai.md) |
| 24 | [MuAPI](https://openaitools.app/tool/muapi) | 412,788 | +13.7% | Freemium | One API for every generative image, video and audio model | category: ai-api; semantic match | [.md](https://openaitools.app/tool/muapi.md) |

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Source: https://openaitools.app/?q=REST%20API%20integration

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