# AI tools for “email api”

1,307 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 | [Robly Email Marketing](https://openaitools.app/tool/robly-com) | 740,230 | +29.7% | Free Trial, Paid | Email marketing with AI send-time optimization to lift opens | category: ai-api; keywords 100%; semantic match | [.md](https://openaitools.app/tool/robly-com.md) |
| 2 | [ZeroGPT](https://openaitools.app/tool/zerogpt) | 32,864,541 | +19.7% | Freemium, Paid | AI content detection and a full writing toolkit in one place | category: ai-api; keywords 100% | [.md](https://openaitools.app/tool/zerogpt.md) |
| 3 | [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) |
| 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 | [Zapmail](https://openaitools.app/tool/zapmail) | 112,401 | -5.9% | Paid | Cold email infrastructure that actually reaches the inbox | category: ai-api; keywords 100%; semantic match | [.md](https://openaitools.app/tool/zapmail.md) |
| 6 | [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) |
| 7 | [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) |
| 8 | [iGPT](https://openaitools.app/tool/igpt-1) | 5,904 | -4.5% | Contact for Pricing | Give your AI agents email intelligence, not just raw email data | category: ai-api; keywords 100%; semantic match | [.md](https://openaitools.app/tool/igpt-1.md) |
| 9 | [AutoSend](https://openaitools.app/tool/autosend) | 12,928 | -50.1% | Paid, Contact for Pricing | Volume-priced transactional, marketing, and automation email built for developers and AI agents | category: ai-api; keywords 100%; semantic match | [.md](https://openaitools.app/tool/autosend.md) |
| 10 | [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) |
| 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 | [Mtalkz — Omnichannel CPaaS Solution](https://openaitools.app/tool/omnichannel-cpaas-solution) | 24,730 | -6.1% | Paid, Contact for Pricing | Bulk SMS, WhatsApp, RCS, IVR and email messaging for Indian businesses | category: ai-api; keywords 100%; semantic match | [.md](https://openaitools.app/tool/omnichannel-cpaas-solution.md) |
| 13 | [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) |
| 14 | [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% | [.md](https://openaitools.app/tool/coldiq-x-slack.md) |
| 15 | [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 | [.md](https://openaitools.app/tool/openrouter-ai.md) |
| 16 | [ElevenLabs](https://openaitools.app/tool/elevenlabs-io) | 42,396,771 | +26.1% | Freemium, Paid, Contact for Pricing | AI audio platform for speech, agents, music and dubbing | category: ai-api | [.md](https://openaitools.app/tool/elevenlabs-io.md) |
| 17 | [Treg](https://openaitools.app/tool/treg) | 452,935 | +223.4% | Freemium | One key for 4,100+ agent tools, pay per call | category: ai-api; keywords 100% | [.md](https://openaitools.app/tool/treg.md) |
| 18 | [ChatGPT](https://openaitools.app/tool/chatgpt-4) | 6,048,022,723 | +2.2% | Freemium | OpenAI's flagship multimodal assistant powered by GPT-6 and GPT-5.6 for reasoning, coding, and deep research. | keywords 54% | [.md](https://openaitools.app/tool/chatgpt-4.md) |
| 19 | [HARPA AI](https://openaitools.app/tool/harpa-ai) | 537,461 | +99.3% | Freemium | One browser agent that combines every major AI model with web automation | category: ai-api; keywords 100% | [.md](https://openaitools.app/tool/harpa-ai.md) |
| 20 | [Qwen 4 (Alibaba Qwen4)](https://openaitools.app/tool/qwen-4) | 35,101,353 | -6.2% | Freemium | Alibaba Cloud's 4th-generation multimodal AI assistant and foundation model lineup (Qwen4-Max, Qwen4-Plus, Qwen4-Flash & open-weight Qwen4-27B) with 1M context. | category: ai-api | [.md](https://openaitools.app/tool/qwen-4.md) |
| 21 | [Recruit CRM](https://openaitools.app/tool/recruit-crm) | 729,799 | -7.8% | Contact for Pricing | AI-powered ATS + CRM that runs the entire recruitment desk in one place | category: ai-api; keywords 100% | [.md](https://openaitools.app/tool/recruit-crm.md) |
| 22 | [Tripo AI](https://openaitools.app/tool/tripo-ai) | 25,209,679 | +73.2% | Freemium | Create 3D models from text and images in seconds | category: ai-api | [.md](https://openaitools.app/tool/tripo-ai.md) |
| 23 | [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 | [.md](https://openaitools.app/tool/gptzero-me.md) |
| 24 | [NuReply](https://openaitools.app/tool/nureply-ai-powered-cold-outreach) | 5,074 | -0.4% | Free Trial, Paid | AI cold email outreach that personalizes every prospect and warms up your domain | category: ai-api; keywords 100%; semantic match | [.md](https://openaitools.app/tool/nureply-ai-powered-cold-outreach.md) |

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