NewIntroducing Agent Payments Arena
Lightsage

Can Claude CodeClaude Codediscover and use your API?

Lightsage is the Agent Experience Infrastructure for developer-focused companies in the agent economy. Get discovered, recommended, and used by AI coding agents.

Benchmark API performance

See how AI coding agents discover and use your API, SDK, or CLI across every major coding agent.

API Performance

Track how your API performs with AI coding agents

Run Evals
Coding Agent Leaderboard

Which coding agents work best with your API

Agent / AveragePayments
1
Claude Code
Claude Code94%
2
Codex
Codex87%
3
Cursor
Cursor76%
4
GitHub Copilot
GitHub Copilot71%
5
Hermes
Hermes63%
6
OpenCode
OpenCode58%
Endpoint Evaluations

How each endpoint performs across eval types

Payments API(5 endpoints)
82% pass rate
POST/v1/payment_intents
94%
POST/v1/charges
88%
GET/v1/customers/{id}
81%
POST/v1/refunds
72%
POST/v1/disputes/{id}/close
63%
Statsig
Reducto
Scalekit
TinyFish
Daytona
Tenki Cloud

Track your brand across every Coding Agent

Track and optimize your brand across 18 AI platforms and coding agents

Start Tracking

Coding Agents

12
Claude CodeClaude Code
OpenAI CodexOpenAI Codex
CursorCursor
GitHub CopilotGitHub Copilot
AntigravityAntigravity
Gemini CLIGemini CLI
OpenClawOpenClaw
OpenCodeOpenCode
HermesHermes
PiPi
KiloKilo
GrokGrok

Answer Engines

7
ChatGPTChatGPT
Google AI OverviewsGoogle AI Overviews
PerplexityPerplexity
Google AI ModeGoogle AI Mode
Gemini SearchGemini Search
ClaudeClaude
Microsoft CopilotMicrosoft Copilot

Models

4
DeepSeekDeepSeek
KimiKimi
Z.aiZ.ai
Grok LLMGrok LLM

Design your APIs, SDKs, agent skills, CLI and MCP for agents

Optimize your agent experience. Ensure agents can reliably discover, call, and use your developer tools. Benchmark every endpoint, method, and command across every major LLM.

Agent Journey

How agents discover and navigate your API

142 runs analyzed
Successful Paths (3)
1 run2 stepsPOST/v1/payment_intents
claude-code
1 run3 stepsPOST/v1/payment_intents
codex
1 run1 stepsPOST/v1/charges
cursor
Agent Journey Flow Per Endpoint

How agents navigate from docs to API

Show full URL
All endpoints
STARTdocs.stripe.com/api/paym...stripe.com/docsdocs.stripe.com/api/char...

Track AI agents visits to your website and docs

Add one line of middleware to see which AI coding agents visit your website and docs. Works with Next.js, Vercel, Cloudflare, and Express.

// middleware.ts
import { withAgentTracking } from '@lightsage/agent-tracker/next';
export default withAgentTracking({
apiKey: process.env.LIGHTSAGE_API_KEY
});
export const config = {
matcher: ['/((?!api|_next|admin).*)'],
};
// Detects Claude Code, OpenCode, ChatGPT, and 5+ agents
// visiting your website and docs in real-time
Next.jsVercelCloudflareExpressAstroNetlify

Built for teams winning in the agent economy

Get your API recommended by AI coding agents

Track how AI coding agents discover and implement your API. Optimize your docs for Cursor, Claude Code, GitHub Copilot, and more.

  • API performance benchmarks across all major LLMs
  • Agent visit tracking on your documentation pages
  • Endpoint-level optimization scores and recommendations

Visibility Analytics

Track your Visibility Score, Share of Voice, and Average Position across all major AI platforms in one dashboard.

Learn more

Prompt Monitoring

Run daily prompts across ChatGPT, Claude, Perplexity, and more. See exactly how AI talks about your brand.

Learn more

Agent Analytics

Track which AI coding agents visit your documentation. See Claude, Cursor, and Copilot in real-time.

Learn more

API Performance

Benchmark your API against competitors. Get LLM-specific scores for discoverability, tool calls, and errors.

Learn more

Opportunities Engine

AI-powered insights surface quick wins, competitor gaps, and content opportunities you're missing.

Learn more

Content Generation

Generate AI-optimized content that gets your brand cited. Use brand kits for consistent messaging.

Free & Public

Devtool Arena

The agent economy leaderboard. See how your API ranks against competitors.

  • Scores based on discoverability, tool calls, and errors
  • LLM-specific benchmarks across Claude, GPT-4, and more
  • Track llms.txt, MCP servers, and SDK compatibility
API LeaderboardPayments
#1Stripe
94/100A
#2Square
87/100A-
#3Razorpay
82/100B+
#4PayPal
78/100B
#5Chargebee
71/100B-
70%

of code will be agent-written by 2027

Gartner

85%

of APIs fail basic AI compatibility checks

Lightsage Research

3x

more API calls through AI vs manual

Lightsage Research

Frequently asked questions

Lightsage is the Agent Experience Infrastructure that helps developer-focused companies get discovered, recommended, and successfully used by AI coding agents like Claude Code, Codex, and Cursor. It combines visibility tracking (are you being recommended?) with usability testing (can agents actually use your API?). This goes beyond traditional GEO tools that only track mentions.

Common reasons: blocked AI crawlers in robots.txt, missing llms.txt file, no comparison content, or unclear error messages. We cover the 4 fixable reasons and step-by-step solutions: Why Claude Code Isn't Recommending Your Library (And How to Fix It)

There's a 4-layer decision stack: training data, web search, structured context (llms.txt, MCP), and execution feedback. Understanding this helps you optimize at each layer. Deep dive: How Coding Agents Actually Decide Which SDK to Use

Profound and Otterly are strong choices for consumer brands tracking mentions, share of voice, sentiment, and citations in ChatGPT and Perplexity; Peec and AthenaHQ also cover answer-engine visibility. For developer tools and APIs, Lightsage adds coding-agent tracking and API usability measurement, because share of voice in chat does not show whether an agent can successfully use your product. Read the full comparison: How to Track AI Recommendations for Your API (2026 Guide)

Consumer GEO tools like Profound and Otterly track answer engines — whether ChatGPT mentions your brand. But for APIs and developer tools, mentions don't matter if the code doesn't work. Dev tools need to track action engines — whether Claude Code can actually use your API. That requires measuring tool call success rates, error recovery, and execution, not just brand mentions. Learn more: AEO/GEO for Dev Tools: Why Profound & Otterly Don't Work for APIs

19 platforms total: 7 answer engines (ChatGPT, Claude, Perplexity, Google AI Overviews, Google AI Mode, Gemini Search, Microsoft Copilot) and 12 coding agents (Claude Code, Codex, Cursor, GitHub Copilot, Antigravity, Gemini CLI, OpenClaw, OpenCode, Hermes, Pi, Kilo, Grok). See comparison: Best GEO Tools for Dev Tools 2026: Lightsage vs Profound vs Otterly

Devtool Arena is our free, public leaderboard ranking APIs and developer tools by how well AI coding agents can use them. It's based on real benchmarks across discoverability, tool calls, and error rates. See results: We Tested 70+ APIs in Claude Code & Codex: What Actually Works

Visibility Analytics tracks how often AI mentions your brand in conversations. API Performance measures how well AI coding agents can actually discover, call, and use your API endpoints—including tool calls, errors, and compatibility scores.

Start with the free Devtool Arena leaderboard to see where you rank. For continuous tracking, Lightsage monitors 18 AI platforms daily and measures both visibility AND usability. Setup guide: How to Track AI Recommendations for Your API (2026 Guide)

Our lightweight middleware detects AI agents (Claude Code, OpenCode, ChatGPT, etc.) visiting your site. It takes one line of code to install and has zero impact on performance.

Yes. Lightsage automatically identifies your competitors and tracks their visibility alongside yours. You'll see share of voice comparisons and opportunities where you can outrank them.

Plans start at $750/month for Starter (validates AI as a channel), $2,500/month for Growth (full platform coverage), and $12,000+/month for Enterprise. We offer 14-day trials for qualified companies. DevTool Arena is free and public. Check our pricing page or book a demo for details.

Is your API ready for the agent economy?

Developer tools and APIs use Lightsage to get discovered, recommended, and used by AI coding agents.