# AI tools for “API validation”

1,573 matching tools; showing 24, ranked by relevance.

Filters: `platform=website`

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 | [Trestle IQ](https://openaitools.app/tool/trestleiq-com) | 20,623 | -10.4% | Free Trial, Contact for Pricing | Identity data APIs for phone verification, validation, and enrichment | category: ai-api; keywords 100%; semantic match | [.md](https://openaitools.app/tool/trestleiq-com.md) |
| 2 | [Greip](https://openaitools.app/tool/greip-fraud-prevention) | 44,386 | +8.3% | Freemium, Paid, Contact for Pricing | Real-time AI fraud prevention API for apps and payments | category: ai-api; keywords 100%; semantic match | [.md](https://openaitools.app/tool/greip-fraud-prevention.md) |
| 3 | [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) |
| 4 | [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) |
| 5 | [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) |
| 6 | [GPTZero](https://openaitools.app/tool/gptzero-me) | 23,246,989 | +32.5% | Freemium, Paid | AI detection and writing verification built for schools and editors | category: ai-api; semantic match | [.md](https://openaitools.app/tool/gptzero-me.md) |
| 7 | [SendBridge](https://openaitools.app/tool/sendbridge) | 23,124 | -15.1% | Freemium, Paid | Verify and clean email lists before you hit send | category: ai-api; keywords 100%; semantic match | [.md](https://openaitools.app/tool/sendbridge.md) |
| 8 | [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) |
| 9 | [AI or Not](https://openaitools.app/tool/ai-or-not) | 375,863 | +12.3% | Freemium, Contact for Pricing | Multi-modal AI detection API that flags synthetic images, text, audio, video and deepfakes | category: ai-api; semantic match | [.md](https://openaitools.app/tool/ai-or-not.md) |
| 10 | [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) |
| 11 | [Google AI Studio](https://openaitools.app/tool/google-ai-studio) | 112,620,020 | +2% | Freemium | Google's rapid prototyping IDE and developer API workbench for building multimodal applications with Gemini models. | category: ai-api | [.md](https://openaitools.app/tool/google-ai-studio.md) |
| 12 | [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) |
| 13 | [Originality.ai](https://openaitools.app/tool/originality) | 2,049,639 | +2.8% | Paid | AI detector, plagiarism and content-quality checks in one scan | category: ai-api; semantic match | [.md](https://openaitools.app/tool/originality.md) |
| 14 | [Devzery](https://openaitools.app/tool/devzery) | 2,378 | -85.1% | Contact for Pricing | Self-driving AI agent for API functional regression testing | category: ai-api; keywords 100%; semantic match | [.md](https://openaitools.app/tool/devzery.md) |
| 15 | [DeepL](https://openaitools.app/tool/deepl) | 95,110,871 | -1.7% | Freemium | Enterprise-grade neural machine translation, AI writing refinement, and real-time voice translation across thirty-plus global languages. | category: ai-api | [.md](https://openaitools.app/tool/deepl.md) |
| 16 | [OrcaRouter](https://openaitools.app/tool/orcarouter) | 975,300 | -5.2% | Freemium | One OpenAI-compatible gateway for adaptive LLM routing, guardrails, and spend control | category: ai-api; semantic match | [.md](https://openaitools.app/tool/orcarouter.md) |
| 17 | [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) |
| 18 | [Arcjet](https://openaitools.app/tool/arcjet) | 38,973 | -29.2% | Free Trial, Paid, Contact for Pricing | Runtime security that decides what your AI agents are allowed to do | category: ai-api; keywords 100%; semantic match | [.md](https://openaitools.app/tool/arcjet.md) |
| 19 | [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) |
| 20 | [IndexBox](https://openaitools.app/tool/indexbox-io) | 330,438 | +14.5% | Free Trial, Paid | AI-driven market intelligence and trade data for 10,000+ products | category: ai-api; keywords 100% | [.md](https://openaitools.app/tool/indexbox-io.md) |
| 21 | [Branded](https://openaitools.app/tool/gobranded-com) | 3,704,728 | +6.6% | Contact for Pricing | Targeted research audiences with AI-verified data quality | category: ai-api; semantic match | [.md](https://openaitools.app/tool/gobranded-com.md) |
| 22 | [Vapi](https://openaitools.app/tool/vapi) | 662,301 | -11.4% | Freemium | Build, test, and deploy production-grade voice AI agents over API | category: ai-api; semantic match | [.md](https://openaitools.app/tool/vapi.md) |
| 23 | [LiteLLM](https://openaitools.app/tool/litellm) | 576,967 | +7.9% | Freemium, Contact for Pricing | One open-source AI gateway for 100+ LLM providers | category: ai-api; semantic match | [.md](https://openaitools.app/tool/litellm.md) |
| 24 | [SQLAI.ai](https://openaitools.app/tool/sqlai-ai) | 15,511 | -37.4% | Freemium, Free Trial | AI SQL multi-tool that generates, fixes, optimizes and explains queries | category: ai-api; keywords 100%; semantic match | [.md](https://openaitools.app/tool/sqlai-ai.md) |

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