# KeyAPI.ai vs LinkupAPI

KeyAPI.ai records 18,041 monthly visits with -32.4% month-over-month growth and Freemium, Paid, Enterprise pricing. LinkupAPI records 37,347 monthly visits with +7.1% growth and Paid pricing.

| Metric | [KeyAPI.ai](https://openaitools.app/tool/keyapi-ai) | [LinkupAPI](https://openaitools.app/tool/linkupapi) |
| :--- | :--- | :--- |
| Website URL | https://keyapi.ai | https://linkupapi.com |
| Categories | AI API, AI Agent, AI Developer Tools, AI Social Media | AI API, AI Agent, AI Web Scraping, AI Lead Generation |
| Pricing Model | Freemium, Paid, Enterprise | Paid |
| Monthly Visits | 18,041 | 37,347 |
| MoM Growth Rate | -32.4% | +7.1% |
| Primary Market | United States | Netherlands |
| Direct Visits | 8,849 | 7,873 |
| Review Score | 4.3 | 4.3 |
| Saved Count | 0 | 0 |
| Supported Platforms | Website | Website |

## KeyAPI.ai

KeyAPI.ai addresses a familiar pain point for anyone building social data features: every platform has its own authentication model, quota system and response format. Instead of stitching together a dozen integrations, teams authenticate once with a KeyAPI token and call a consistent REST interface that returns profiles, posts, comments, follower graphs, search results and trends from more than twenty services, including TikTok, Douyin, Instagram, YouTube, X, Reddit, Threads, LinkedIn, Facebook, Pinterest, Google and Amazon.

The product is explicitly built for the agent era. Beyond the REST API, KeyAPI offers native support for CLI, Agent Skills and MCP, so AI agents can read a natural-language request, discover the right endpoint and pull the data they need without hand-written glue code. Access uses a simple Bearer token header, and the platform advertises a 99.9% uptime SLA with sub-500ms average latency for automation and high-frequency workloads. Historical archives powered by EchoTik support trend tracking of up to 1,000 days, which is useful for market intelligence, model training datasets and longitudinal analytics.

Typical buyers are developer teams, data and growth analysts, and AI product builders who need social intelligence without maintaining their own scrapers. Pricing is credit-based, granted each billing period and reset on renewal, with a free tier for evaluation and tiered monthly plans scaling up to enterprise contracts that include custom SLAs and integrations.

**Pricing & Plans:** Credit-based subscriptions: a free tier with 50 credits (expiring after 3 days), Basic at $59/month for 10,000 credits, Pro at $189/month for 50,000 credits, Ultra at $439/month for 180,000 credits, and custom enterprise pricing. Monthly, quarterly and yearly billing options are offered.

- **One unified API key:** A single Bearer token gives access to 20+ social and commerce platforms, eliminating multi-token and multi-integration management.
- **Built for AI agents:** Native MCP, CLI and Agent Skills support lets agents discover and invoke the right endpoints from natural-language requests.
- **Real-time plus historical data:** Stream live results alongside deep historical archives powered by EchoTik, tracking trends for up to 1,000 days.
- **High-performance infrastructure:** A 99.9% uptime SLA and sub-500ms average latency target automation and data-intensive workflows.
- **Transparent credit pricing:** Credits are granted each period and reset on renewal, with monthly, quarterly and yearly billing options.

**Strengths:** Dramatically fewer integrations to maintain than calling each platform directly; First-class MCP, CLI and Agent Skills support for AI agent workflows; Combines live data with long-range historical archives; Clear, published credit-based pricing with a free starting tier

**Limitations:** Credit consumption varies by endpoint, so cost forecasting takes planning; Access depends on underlying platform policies, which can change and affect specific endpoints

[Profile (Markdown)](https://openaitools.app/tool/keyapi-ai.md)

## LinkupAPI

LinkupAPI positions itself as "the outreach API for AI agents and software." Rather than a standalone tool for sales reps, it targets builders: AI agent teams, sales platforms, ATS and CRM vendors that want to embed prospecting and multichannel outreach into their own products without building the underlying plumbing. The service reports over 50 endpoints, sub-three-second average response times and 99.9% uptime, and it exposes the whole loop - Find, Spot intent, Reach, Reply - through the same API key and request format.

The coverage spans four channels: LinkedIn (messages, InMails, invitations, Sales Navigator activity), email (Gmail, Outlook or any SMTP mailbox), WhatsApp (text, files and voice notes) and iMessage (dedicated numbers with tapbacks and read receipts). On the data side it offers a Prospect Data API for people search, full profiles, company data, job postings and funding rounds, plus a Mail API for email verification, discovery and enrichment. An MCP server lets Claude, ChatGPT, Cursor or any MCP client drive outreach directly.

Integration options include n8n, Make and Zapier, and LinkupAPI highlights security and compliance as first-class concerns, advertising a zero-storage architecture alongside GDPR and CCPA alignment. A free trial is available, and the product is aimed at teams that already have a user base or agent to plug outreach into.

**Pricing & Plans:** LinkupAPI is a paid, credit-based API product. The site advertises a free trial with API keys and usage metered in credits (for example, a send action consuming credits). Exact plan tiers and per-credit pricing are not published on the homepage, so check the pricing page or sales for current numbers.

- **One API for four channels:** Send on LinkedIn, email, WhatsApp and iMessage with the same request format, and receive all replies on a single webhook.
- **Prospect and company data:** Search people, pull full profiles, company details, job postings and funding rounds as JSON for your product or agent.
- **Mail API:** Verify, find and enrich professional email addresses at scale, with real-time deliverability checks.
- **MCP server:** Run searches, messages and reply reads from Claude, ChatGPT, Cursor or any MCP-compatible client.
- **Automation and compliance:** Native n8n, Make and Zapier integrations plus a zero-storage architecture with GDPR and CCPA alignment.

**Strengths:** Single API covering search, messaging, data enrichment and replies reduces vendor sprawl; Strong channel breadth, including iMessage and WhatsApp alongside LinkedIn and email; MCP server enables direct use from mainstream LLM clients; Published performance and compliance posture (99.9% uptime, zero-storage, GDPR/CCPA)

**Limitations:** Credit-based usage makes cost forecasting harder without careful monitoring; Homepage does not publish detailed price tiers, so evaluation requires contacting sales or the pricing page; Multichannel outreach at scale carries platform-policy and deliverability risk that users must manage

[Profile (Markdown)](https://openaitools.app/tool/linkupapi.md)

## Frequently Asked Questions

### How do KeyAPI.ai and LinkupAPI compare in monthly traffic?

KeyAPI.ai has 18,041 monthly visits, while LinkupAPI has 37,347. Traffic estimates describe audience size, not product quality.

### How do their growth rates compare?

KeyAPI.ai has a month-over-month growth rate of -32.4%; LinkupAPI has +7.1%.

### How does pricing compare?

KeyAPI.ai: Freemium, Paid, Enterprise. Credit-based subscriptions: a free tier with 50 credits (expiring after 3 days), Basic at $59/month for 10,000 credits, Pro at $189/month for 50,000 credits, Ultra at $439/month for 180,000 credits, and custom enterprise pricing. Monthly, quarterly and yearly billing options are offered. LinkupAPI: Paid. LinkupAPI is a paid, credit-based API product. The site advertises a free trial with API keys and usage metered in credits (for example, a send action consuming credits). Exact plan tiers and per-credit pricing are not published on the homepage, so check the pricing page or sales for current numbers.

## Alternatives

| # | Tool Name | Monthly Visits | MoM Growth Rate | Pricing Model | Summary | Profile (Markdown) |
| :--- | :--- | :--- | :--- | :--- | :--- | :--- |
| 1 | [TinyFish](https://openaitools.app/tool/tinyfish) | 1,124,952 | +199.7% | Freemium, Contact for Pricing | One API key for agent-grade web search, fetch, browsing and automation | [.md](https://openaitools.app/tool/tinyfish.md) |
| 2 | [Exa](https://openaitools.app/tool/exa-ai) | 1,062,574 | +16.8% | Freemium, Contact for Pricing | Web search API and crawler built for AI agents | [.md](https://openaitools.app/tool/exa-ai.md) |
| 3 | [Treg](https://openaitools.app/tool/treg) | 452,935 | +223.4% | Freemium | One key for 4,100+ agent tools, pay per call | [.md](https://openaitools.app/tool/treg.md) |
| 4 | [Salesforge](https://openaitools.app/tool/salesforge) | 236,658 | -9.9% | Free Trial, Paid | Unlimited LinkedIn and email outreach, powered by AI SDR agents | [.md](https://openaitools.app/tool/salesforge.md) |
| 5 | [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 | [.md](https://openaitools.app/tool/coldiq-x-slack.md) |
| 6 | [Crustdata](https://openaitools.app/tool/crustdata) | 100,533 | +1.2% | Contact for Pricing | Real-time B2B people and company data for AI agents | [.md](https://openaitools.app/tool/crustdata.md) |
| 7 | [BeatAPI](https://openaitools.app/tool/beatapi-ai-model-data-web-apis-for-agents) | 99,987 | +1,012.7% | Freemium | One API key for 70+ AI models, 1,000+ data APIs and web tools | [.md](https://openaitools.app/tool/beatapi-ai-model-data-web-apis-for-agents.md) |
| 8 | [ScrapeGraphAI](https://openaitools.app/tool/scrapegraphai) | 91,362 | -25.7% | Freemium, Paid, Contact for Pricing | Turn any website into structured JSON with a prompt instead of selectors | [.md](https://openaitools.app/tool/scrapegraphai.md) |
| 9 | [Scrapingdog](https://openaitools.app/tool/scrapingdog) | 89,683 | -15% | Free Trial, Paid | Web scraping API with built-in proxies, browsers, and anti-bot handling | [.md](https://openaitools.app/tool/scrapingdog.md) |
| 10 | [AIsa](https://openaitools.app/tool/aisa) | 89,162 | -10.3% | Freemium | One key, one schema, 6,000+ APIs for your AI agents | [.md](https://openaitools.app/tool/aisa.md) |

---
Source: https://openaitools.app/compare/keyapi-ai-vs-linkupapi

More Markdown: [Categories](https://openaitools.app/categories.md) · [Traffic rankings](https://openaitools.app/rankings.md) · [llms.txt](https://openaitools.app/llms.txt)