Agent Gateway: 40+ APIs for agent tool use (works with all frameworks)

[Robocular]

Suggestion for the frameworks comparison

Your repo does a great job comparing AI agent frameworks. One thing all these frameworks have in common is the need for external tools/APIs. I maintain an API gateway with 40+ services specifically designed for AI agents that works with any framework.

Framework-agnostic examples

LangChain

from langchain.tools import tool
import requests

GATEWAY = "https://agent-gateway-kappa.vercel.app"

@tool
def scrape_webpage(url: str) -> str:
    """Scrape a webpage and return markdown content."""
    r = requests.post(f"{GATEWAY}/api/scraper/scrape", json={"url": url, "format": "markdown"})
    return r.json().get("content", "")[:2000]

@tool
def run_python(code: str) -> str:
    """Execute Python code in a sandbox."""
    r = requests.post(f"{GATEWAY}/api/code/run", json={"code": code, "language": "python"})
    return r.json().get("stdout", "")

CrewAI

from crewai_tools import tool
import requests

GATEWAY = "https://agent-gateway-kappa.vercel.app"

@tool("Web Search")
def search_web(query: str) -> str:
    """Search the web for information."""
    r = requests.get(f"{GATEWAY}/api/search/query", params={"q": query})
    results = r.json().get("results", [])
    return "\n".join(f"- {r['title']}: {r['url']}" for r in results[:5])

@tool("Screenshot")  
def take_screenshot(url: str) -> str:
    """Capture a screenshot of a website. Returns image URL."""
    r = requests.post(f"{GATEWAY}/api/screenshot/capture", json={"url": url})
    return r.json().get("url", "")

Available tools

40+ services including: web scraper, screenshots, code runner (Python/JS/TS/Bash), web search, crypto prices, on-chain analytics, agent memory (vector search), file storage, PDF generator, image processor, email sender, DNS lookup, URL shortener, and more.

Free tier: 200 credits, no API key needed.
SDKs: pip install agent-gateway / npm install agent-gateway-sdk

Full catalog: https://api-catalog-three.vercel.app

Could be a useful addition to the "Tools & APIs" section of your frameworks comparison!