$0.01 - $0.50 per call One API Key

The AI Agent API

250 tools. 15 models. One API key. $0.01 - $0.50 per call.

Try Free View Pricing

1 free call/day + 2 with ads · No subscriptions. No minimums. · pip install aipaygen-mcp

curl -- api.aipaygen.com

250

Tools

Models

Providers

2,400+

Skills

How it works

Three steps to your first AI call

Install

pip install aipaygen-mcp, or just use curl. No SDK required.

pip install aipaygen-mcp

Call

POST JSON to any endpoint. Get structured results back instantly.

curl -X POST https://api.aipaygen.com/research \
  -H "Authorization: Bearer apk_xxx" \
  -d '{"query": "x402 protocol"}'

Pay per use

1 free call/day + 2 with ads. Then $0.01-$0.50 per call with Stripe or USDC.

# Get a free API key with $0.25 credits
curl -X POST https://api.aipaygen.com/auth/generate-key \
  -d '{"label": "my-key"}'

15 frontier models across 7 providers. One unified API.

◈

Anthropic

Claude 4, Haiku

◉

OpenAI

GPT-4o, o1

◆

Google

Gemini 2.5

◊

DeepSeek

V3, R1

✦

xAI

Grok 3

★

Mistral

Large, Codestral

◇

250 AI Tools

Research, write, code, analyze, extract, translate, scrape, RAG, vision, diagrams, and more -- every tool is one POST request away.

researchwritecode analyzescrapetranslate visionragdiagram

Agent Builder

Create custom AI agents visually. Pick tools, set schedules, deploy -- no code required.

visual buildertemplates

Multi-Model

15 frontier models across 7 providers. Smart routing picks the best model for your task, or you choose.

ClaudeGPT-4oGemini DeepSeekGrokMistral Llama

x402 Payments

HTTP-native crypto micropayments. USDC on Base. Agents pay per call autonomously.

USDCBase L2

MCP Protocol

Works with Claude Code, Cursor, Cline, and any MCP-compatible client out of the box.

stdioSSE

Pro Tools

Premium tools like skill absorption and execution. Higher limits, priority routing, advanced features.

PROabsorb_skillexecute_skill

Built with AiPayGen

Real requests, real responses

POST /chain

Content Pipeline

Scrape, summarize, and translate in one call

Request

{"steps": [
  {"tool": "scrape_website",
   "input": {"url": "https://blog.example.com/ai"}},
  {"tool": "summarize",
   "input": {"text": "$prev.result"}},
  {"tool": "translate",
   "input": {"text": "$prev.result",
             "target": "es"}}
]}

Response

{"steps_completed": 3,
 "result": "La IA generativa está
  transformando la industria...",
 "_billing": {"cost": 0.018}}

POST /research

Research Agent

Ask any question, get sourced answers

Request

{"query": "What is the x402
  payment protocol?"}

Response

{"summary": "x402 is an HTTP-native
  payment protocol that uses
  status code 402...",
 "sources": [
   "x402.org",
   "docs.cdp.coinbase.com"
 ],
 "_billing": {"cost": 0.006}}

POST /code

Code Generator

Describe what you want, get working code

Request

{"prompt": "Python function that
  fetches crypto prices from
  CoinGecko"}

Response

{"language": "python",
 "code": "import requests\n\ndef
  get_prices(coins):\n  url =
  'https://api.coingecko...'",
 "_billing": {"cost": 0.008}}

Simple pricing

No subscriptions. No minimums. $0.01 - $0.50 per call. 70% creator revenue on the marketplace.

Free

forever

1 free call/day + 2 with ads
No sign-up required
All 250 tools
MCP access

Try Now

Starter

~166 calls

Prepaid API key
All 250 tools
$0.25 trial credits
No expiration

Get Started

Best value

Pro

~830 calls

20% bulk discount
Pro tools access
Agent Builder
Priority routing
Workflow chains

Buy Credits

Enterprise

$20

~4,000 calls

Everything in Pro
Webhook events
Email delivery
Batch API (20x)
Dedicated support

Buy Credits

See full pricing details → · View Pro tools →

Get started in 30 seconds

Choose your preferred integration method

Recommended Claude Code (Remote MCP)

claude mcp add aipaygen -- npx -y @anthropic-ai/mcp-proxy https://mcp.aipaygen.com/mcp

pip install (local MCP)

pip install aipaygen-mcp

REST API (curl / any language)

curl -X POST https://api.aipaygen.com/research \
  -H "Authorization: Bearer apk_YOUR_KEY" \
  -d '{"query": "x402 payment protocol"}'

Listed on

✓ MCP Registry ✓ Smithery ✓ Glama ✓ PyPI ✓ Base Mainnet (USDC) ✓ 1,260 Tests Passing

Live API Usage

Real calls from developers using AiPayGen right now

Start building now

250 tools, 15 models, $0.01-$0.50/call. 1 free call/day + 2 with ads. No subscriptions. No minimums.

Try Free Get API Key

claude mcp add aipaygen -- npx -y @anthropic-ai/mcp-proxy https://mcp.aipaygen.com/mcp Copy

Feature	AiPayGen	OpenRouter	Together AI	Replicate
Ready-made tools	250	0	0	0
Models	15	300+	200+	1000+
Tool chaining	Yes	No	No	No
MCP native	Yes	No	No	No
Free tier	1 free + 2 with ads/day	No	No	No
Min purchase	$1	$5	$5	$0
Crypto payments	USDC x402	No	No	Crypto
Batch API	20 parallel	No	No	Yes
Agent sessions	Yes	No	No	No
Webhook alerts	Yes	No	No	Yes