Agent Gateway

What is Agent Gateway?

Agent Gateway, listed here as Frostbyte Crypto API, is a hosted API that puts dozens of small web services behind one key for AI agents and the developers who build them. The page lists services including DNS lookup, screenshots, web scraping, code execution, geolocation, PDF handling and live crypto prices, which it says come from the Hyperliquid DEX for more than 275 perpetual futures markets. Payment is designed for software: when credits run out, an endpoint can answer with HTTP 402, and the agent sends USDC on the Base network and retries with the transaction hash. A free key allows 50 requests a day, and extra credits cost $1 USDC for 500 credits that never expire. The site also publishes agent.json and llms.txt so agents can discover what is available, and a live status section shows whether each service is online.

Use cases

• Give an AI agent web utility tools
• Capture website screenshots by API
• Resolve DNS records programmatically
• Fetch crypto prices for a trading bot
• Let agents pay per request without an account
• Run code execution from an agent
• Scrape pages through a single endpoint

Who it's for

• AI agent developers
• Backend developers
• Crypto developers
• Automation builders

Why use Agent Gateway

• A single key replaces separate signups for several utility APIs.
• Agents can pay for calls on their own through the 402 flow, with no account or billing dashboard.
• You can test every service on the free daily allowance without a credit card.
• Credits are bought at a stated rate of 500 per $1 USDC and do not expire.
• Discovery files make it easier for agents to find the endpoints without hand-written configuration.

Agent Gateway features

• One API key across the gateway's services
• HTTP 402 pay-per-request flow
• USDC payments on Base, verified on-chain
• 50 free requests per day, with or without a key
• Credits that never expire
• agent.json and llms.txt discovery files
• Live service health endpoint and status section
• Services list endpoint with names, categories and URLs
• Quick-start examples in curl, Python and Node.js

Agent Gateway integrations

• Base
• Hyperliquid

How to get started with Agent Gateway

1. Create a free key with a POST to the key endpoint, or call services without a key inside the daily free limit.
2. List the available services and try one, such as a DNS lookup or a price request, with the key as a bearer token.
3. Check your remaining credits with the balance endpoint as your agent makes calls.
4. When free requests run out, top up credits with USDC on Base, or let the agent answer the 402 response by sending payment and retrying.

Agent Gateway limitations

• Paid usage means holding USDC and sending on-chain transactions
• The free tier is limited to 50 requests per day
• The page shows both 39 and 40+ as the number of services, so check the live services list
• Usage and uptime figures on the page come from the vendor

Agent Gateway pricing

Yes, Agent Gateway has a free plan.

Agent Gateway plans

• Free Tier

  $0

  forever

  • 50 free API requests every day
  • 50 requests/day without any key
  • Full access to all services
  • No credit card required
  • agent.json and llms.txt discovery

• Pay-as-You-Go

  $1 USDC

  per 500 credits, one-time on-chain top-up

  • 500 credits per $1 USDC
  • Credits never expire
  • Instant top-up via on-chain transaction
  • Verified on Base blockchain

Plans as listed on the official pricing page on 24 Oct 2026. Prices can change and may vary by country or exclude tax. Check the official pricing page.

Agent Gateway alternatives

The main Agent Gateway alternatives listed on Debuly are Zapier, Clawdia Agent Gateway, BrowserSkill, Firecrawl, Moli and Hyperbrowser. The table compares pricing and platforms; order is A–Z.

1. 

   BrowserSkill

   Open-source CLI and browser extension from Tencent that lets AI agents work in your real, signed-in Chrome or Edge in a separate window.

   Developer platformsAutomation and agentsProductivity
   Open sourceVisit BrowserSkill (official site)
2. CA

   Clawdia Agent Gateway

   Pay-per-request API gateway for AI agents: 39+ services behind one key, with a free tier and USDC, x402 or Monero payments.

   Developer platformsAutomation and agents
   FreemiumVisit Clawdia Agent Gateway (official site)
3. 

   Firecrawl

   Web data API for AI agents: search, scrape, crawl and interact with websites and get clean content back, with a free tier.

   Developer platformsResearch and searchAutomation and agents
   FreemiumVisit Firecrawl (official site)
4. 

   Hyperbrowser

   Cloud infrastructure that gives AI agents hosted Chrome sessions, isolated sandboxes, and web fetch, crawl and search APIs.

   Developer platformsAutomation and agentsCoding
   FreemiumVisit Hyperbrowser (official site)
5. 

   Moli

   Open-source browser engine from Lexmount that lets AI agents extract web content and automate pages with low memory use.

   Developer platformsAutomation and agentsCoding
   Open sourceVisit Moli (official site)
6. 

   Zapier

   No-code automation platform that links 9,000+ apps through multi-step Zaps, AI agents, tables, forms and an MCP server.

   Automation and agentsProductivity
   FreemiumVisit Zapier (official site)

Agent Gateway FAQ

Sources & verification

Facts on this page come from the official sources below, each with the date we read it. Written by Debuly; the vendor did not review this page.

Image credits

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• Cover: none collected yet, so a generated tile is shown.

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