# Keywords AI (Respan)

According to OpenAITools.app telemetry verified on 2026-11-11, Keywords AI (Respan) (keywordsai.co) is an AI platform indexed under AI Monitor generating 0 monthly visits with a month-over-month traffic delta of -1.83K (-100%). Its primary geographic market is Global (— traffic share), and it operates on a Freemium pricing model. Top competing alternatives by monthly volume include Respan (91.5K visits/mo), OpenRouter (19.94M visits/mo), LLM Gateway (168.43K visits/mo).

Open-source AI gateway with built-in observability and evals

## Key Telemetry & Specifications

| Metric | Value |
| :--- | :--- |
| Tool Name | Keywords AI (Respan) |
| Handle | keywords-ai |
| Status | active |
| Origin | independent |
| Maintenance | active |
| Official Domain | keywordsai.co |
| Website URL | https://keywordsai.co |
| Categories | AI Monitor, Large Language Models (LLMs), AI Developer Tools, AI API, AI Testing |
| Pricing Model | Freemium |
| Monthly Visits | 0 |
| MoM Traffic Change | -1,831 |
| MoM Growth Rate | -100% |
| Primary Market | Global |
| Market Share | — |
| Direct Visits | 0 |
| Organic Search Visits | 0 |
| Social Visits | 0 |
| Referral Visits | 0 |
| Email Visits | 0 |
| Review Score | 4.6 |
| Saved Count | 0 |
| Supported Platforms | Website |
| Billing Platforms |  |
| Attributes | Features: Website; Pricing: Free Trial |
| Tags | LLM monitoring, LLM observability, AI monitoring, API, GPT-4 alternative, LLM proxy, OpenAI SDK, Anthropic SDK, LangChain, LlamaIndex, OpenRouter, LLM metrics, Prompt management, A/B testing, Auto-evaluations, Fine-tuning, DevOps, AI startups |

## Overview

Keywords AI began as a cost-conscious LLM API and monitoring layer for AI startups, and it now presents itself as Respan, an open-source gateway. The core idea is that a team building with language models should not have to choose between cheap routing and deep visibility. You point an existing OpenAI, Anthropic or Google SDK at the gateway's base URL, swap in one API key, and requests are routed, retried, load-balanced and logged without rewriting application code.

The observability half of the product records each call as a trace, tracks cost and usage per model, and supports prompt management with versioning and one-click deployment. Evaluations, datasets and LLM-as-judge scoring let teams run structured experiments and regression tests as prompts evolve, which is the part most ad-hoc logging setups lack.

Operationally the gateway claims very high throughput and low added latency, with fallbacks when a provider fails, per-customer spend limits and PII masking before data reaches a model. A free workspace covers a moderate log volume; paid team and enterprise tiers raise the limits and add collaboration, SSO and compliance options. Because it is open source, self-hosting is possible for organisations with stricter data requirements.

## Pricing & Plans

Free tier at $0 covering the full platform with 100k logs, 1k scores, 5 datasets, 2 evaluators and 10 prompts; Team at $199/month (billed yearly) for unlimited datasets, evaluators and prompts plus email/private support; Enterprise custom pricing with volume discounts, SSO, HIPAA and a uptime SLA. Overage is charged per additional logs and scores.

## Key Features & Capabilities

- **Unified gateway exposing 1,000+ models from many providers b:** Unified gateway exposing 1,000+ models from many providers behind a single API key
- **Request tracing with cost, usage and latency tracking per mo:** Request tracing with cost, usage and latency tracking per model
- **Prompt management with version control and one-click deploym:** Prompt management with version control and one-click deployment
- **Evaluations, datasets and LLM-as-judge scoring for regressio:** Evaluations, datasets and LLM-as-judge scoring for regression testing
- **Reliability features including automatic retries, fallbacks,:** Reliability features including automatic retries, fallbacks, load balancing and PII redaction

## Primary Use Cases

- **Replace provider SDK boilerplate with one endpoint (AI engineer):** Point the OpenAI or Anthropic SDK at the gateway base URL and get multi-provider routing, retries and fallbacks without maintaining provider-specific integration code.
- **Monitor production LLM spend and behaviour (ML platform team):** Use traces, logs and cost dashboards to find expensive or failing calls and understand how models behave in real user traffic.
- **Version and test prompts safely (Prompt engineer):** Store prompts in the platform, roll out changes with one-click deployment and use automated evaluations to catch regressions before they reach users.
- **Cut token costs while keeping oversight (Startup CTO):** Route traffic across providers and cheaper models, set per-customer spend limits, and still keep full observability over every call.

## Strengths

- One integration covers a large catalogue of models and providers
- Observability, prompt management and evals live in the same platform
- Open-source core allows self-hosting for sensitive workloads
- Generous free tier for prototyping and small deployments

## Limitations

- The rebrand from Keywords AI to Respan can make documentation and references confusing
- Full team collaboration and compliance features require the paid tiers
- Self-hosting adds operational overhead for smaller teams

## Frequently Asked Questions

### Is Keywords AI the same product as Respan?
Yes. Keywords AI has rebranded to Respan; the company remains Keywords AI, Inc., and keywordsai.co now redirects to respan.ai.

### Which providers and models can I access?
The catalogue advertises 1,000+ models across major providers including OpenAI, Anthropic, Google and OpenRouter, all reachable through one gateway endpoint.

### Do I need to rewrite my application code?
Usually not. You change the base URL and API key in your existing OpenAI, Anthropic or Google SDK call, and the gateway handles routing from there.

### Is there a free plan?
Yes. The Free tier costs $0 and includes the full platform with 100k logs, 5 datasets, 2 evaluators and 10 prompts.

### What is Keywords AI (Respan)'s monthly traffic and growth trend?
Keywords AI (Respan) currently receives 0 monthly visits, with a month-over-month traffic change of -1.83K (-100% growth rate). Its primary source market is Global (— share), including 0 direct visits/mo and 0 organic search visits/mo.

### Is Keywords AI (Respan) free? What is its pricing model?
Keywords AI (Respan) operates on a Freemium pricing model. Free tier at $0 covering the full platform with 100k logs, 1k scores, 5 datasets, 2 evaluators and 10 prompts; Team at $199/month (billed yearly) for unlimited datasets, evaluators and prompts plus email/private support; Enterprise custom pricing with volume discounts, SSO, HIPAA and a uptime SLA. Overage is charged per additional logs and scores. Supported billing and checkout platforms include: not listed.

### What are the best Keywords AI (Respan) alternatives in 2026?
Based on OpenAITools.app category traffic and feature fit, the top five alternatives to Keywords AI (Respan) are: 1. Respan (91.5K visits/mo); 2. OpenRouter (19.94M visits/mo); 3. LLM Gateway (168.43K visits/mo); 4. Portkey (195.65K visits/mo); 5. Helicone (57.19K visits/mo).

### Which platforms and core AI capabilities does Keywords AI (Respan) support?
Keywords AI (Respan) is classified under AI Monitor, Large Language Models (LLMs), AI Developer Tools, AI API, supports the following platforms: Website, and its core capability tags include: LLM monitoring, LLM observability, AI monitoring, API, GPT-4 alternative, LLM proxy.

## Alternatives

| Tool Name | Monthly Visits | Pricing Model | Compare |
| :--- | :--- | :--- | :--- |
| [Respan](https://openaitools.app/tool/respan) | 91,503 | Freemium | [Compare](https://openaitools.app/compare/keywords-ai-vs-respan) |
| [OpenRouter](https://openaitools.app/tool/openrouter-ai) | 19,941,437 | Paid | [Compare](https://openaitools.app/compare/keywords-ai-vs-openrouter-ai) |
| [LLM Gateway](https://openaitools.app/tool/llm-gateway) | 168,426 | Freemium, Contact for Pricing | [Compare](https://openaitools.app/compare/keywords-ai-vs-llm-gateway) |
| [Portkey](https://openaitools.app/tool/portkey-ai) | 195,650 | Freemium, Paid, Contact for Pricing | [Compare](https://openaitools.app/compare/keywords-ai-vs-portkey-ai) |
| [Helicone](https://openaitools.app/tool/helicone-ai) | 57,187 | Freemium, Free Trial, Paid, Contact for Pricing, Free | [Compare](https://openaitools.app/compare/helicone-ai-vs-keywords-ai) |
| [Maxim AI](https://openaitools.app/tool/maxim-ai) | 121,351 | Contact for Pricing, Free Open Source | [Compare](https://openaitools.app/compare/keywords-ai-vs-maxim-ai) |
| [LiteLLM](https://openaitools.app/tool/litellm) | 576,967 | Freemium, Contact for Pricing | [Compare](https://openaitools.app/compare/keywords-ai-vs-litellm) |
| [LangWatch](https://openaitools.app/tool/langwatch) | 52,098 | Contact for Pricing | [Compare](https://openaitools.app/compare/keywords-ai-vs-langwatch) |
| [OrcaRouter](https://openaitools.app/tool/orcarouter) | 975,300 | Freemium | [Compare](https://openaitools.app/compare/keywords-ai-vs-orcarouter) |
| [Manifest](https://openaitools.app/tool/manifest) | 54,135 | Free | [Compare](https://openaitools.app/compare/keywords-ai-vs-manifest) |
| [OpenLIT](https://openaitools.app/tool/openlit) | 6,028 | Free | [Compare](https://openaitools.app/compare/keywords-ai-vs-openlit) |
| [Flatkey](https://openaitools.app/tool/flatkey-ai) | 49,134 | Paid, Contact for Pricing | [Compare](https://openaitools.app/compare/flatkey-ai-vs-keywords-ai) |

[Keywords AI](https://discord.gg/KEanfAafQQ)

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Source: https://openaitools.app/tool/keywords-ai