CAYPO Gateway — Pay for any API with USDCx

Your agent uses services.

CAYPO handles the payments.

“Generate a hero image for my landing page and optimize it”

Agent calledfal.aiOpenAI$0.005 + $0.003

Generated image using FLUX Pro:

hero-dark.png1024x768

fal.ai

Optimized with GPT-4o Vision:

Alt text generated42 tokens

OpenAI

Total cost (2 API calls)$0.008

Want me to add it to your HTML?

17 services · 46 endpoints · from $0.0005/request

OpenAI

GPT-4o, DALL-E 3, Whisper, TTS

8 endpoints · $0.001-0.05

gpt-4o · gpt-4o-mini · dall-e-3 · whisper-1 · tts-1

Anthropic

Claude Sonnet, Opus, Haiku

4 endpoints · $0.001-0.015

claude-sonnet-4-20250514 · claude-opus-4-20250901 · claude-haiku-3-5-20241022

AI Models

Google Gemini

Gemini Pro, Flash, Nano

4 endpoints$0.001-0.008

mpp.caypo.xyz/gemini

gemini-pro, gemini-flash

Groq

Llama 3, Mixtral — ultra-fast inference

2 endpoints$0.0005-0.002

mpp.caypo.xyz/groq

llama-3.3-70b, mixtral-8x7b

DeepSeek

DeepSeek V3, Coder

2 endpoints$0.0005-0.003

mpp.caypo.xyz/deepseek

deepseek-chat, deepseek-coder

Together AI

Open-source models hosted

3 endpoints$0.001-0.005

mpp.caypo.xyz/together

Search & Web

Perplexity

AI-powered web search with sources

2 endpoints$0.005-0.01

mpp.caypo.xyz/perplexity

Brave Search

Independent web search API

2 endpoints$0.003

mpp.caypo.xyz/brave

Firecrawl

Web scraping, crawling, extraction

4 endpoints$0.005-0.02

mpp.caypo.xyz/firecrawl

Media

fal.ai

FLUX, Stable Diffusion, 600+ models

3 endpoints$0.02-0.10

mpp.caypo.xyz/fal

flux-pro, flux-schnell, stable-diffusion-xl

ElevenLabs

Text-to-speech, voice cloning

3 endpoints$0.01-0.05

mpp.caypo.xyz/elevenlabs

Data

OpenWeather

Weather data, forecasts

3 endpoints$0.001-0.003

mpp.caypo.xyz/openweather

Google Maps

Geocoding, directions, places

4 endpoints$0.005-0.02

mpp.caypo.xyz/googlemaps

Reloadly

Airtime topup, gift cards

2 endpoints$0.01-1.00

mpp.caypo.xyz/reloadly

Dev Tools

Resend

Transactional email API

2 endpoints$0.001-0.003

mpp.caypo.xyz/resend

Lob

Physical mail, postcards, letters

3 endpoints$0.50-2.00

mpp.caypo.xyz/lob

Judge0

Code execution, 70+ languages

2 endpoints$0.001-0.005

mpp.caypo.xyz/judge0

For agents

GET mpp.caypo.xyz/llms.txt

Service discovery for AI agents.

For developers

GET mpp.caypo.xyz/api/services

JSON catalog with full pricing.

Get started in 60 seconds

CLI

$ npm i -g @caypo/canton-cli
$ caypo init
$ caypo pay \
    https://mpp.caypo.xyz/\
    openai/v1/chat/completions

Best for: quick testing, scripts

SDK

import { MppPayClient }
  from '@caypo/canton-sdk'

const result = await
  agent.mpp.pay(url, {
    method: 'POST',
    body: JSON.stringify(data),
    maxPrice: '0.05'
  })

Best for: apps, bots, workflows

MCPRecommended

// claude_desktop_config.json
{
  "mcpServers": {
    "caypo": {
      "command": "npx",
      "args": ["@caypo/canton-mcp"]
    }
  }
}

Best for: Claude Desktop, Cursor, Windsurf

How payment works

01Agent sends request

GET /v1/chat/completions Content-Type: application/json

02Gateway returns 402

HTTP 402 Payment Required WWW-Authenticate: Payment method="canton" amount="0.003"

03Canton verifies payment

TransferFactory.Transfer → 0.003 USDCx → merchant

04Agent receives response

HTTP 200 OK Payment-Receipt: canton:tx/0x7a..

Average payment latency: <500ms. All payments are final. No chargebacks.

Pay for any API

with USDCx.

Your agent uses services.

Get started in 60 seconds

How payment works