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x402engine

https://x402engine.app
● healthy ai-ml

Give your AI agents 125 APIs through one payment-native integration. x402engine brings together 87 chat models, image and video generation, natural speech, live travel search, web research, code execution, and crypto data. Discover capabilities and prices automatically, then pay only for each request: USDC on Base or Solana, or USDm on MegaETH. No subscriptions or provider API keys. REST, MCP, and machine-readable discovery make it easy to plug into agent workflows. Explore the live catalog at https://x402engine.app.

Category
ai-ml
Chains
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Price
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Quality grade

How grading works
A 88.9 / 100
Availability 40.0 / 40
Endpoint responded (HTTP 200)
Payability 20.0 / 20
  • ✓ Answers a real HTTP 402 challenge
  • ✓ Publishes a /.well-known/x402 descriptor
  • ✓ Payment address on record
  • ✓ Settlement network declared
  • ✓ Price declared
Demand 25.9 / 40
65 distinct payers, 800 USDC transfers in the last 30 days
Owner verified 3.0 / 3
Operator proved control of this domain
Endpoint last checked 6 h ago. On-chain activity last read 11 d ago. Availability and on-chain demand are both re-probed daily; the grade updates automatically on the next pass.

Paid endpoints

113 resource(s) advertised by this origin.

POST https://x402engine.app/api/image/fast

Quick image generation using FLUX Schnell (~2s, good for drafts)

POST https://x402engine.app/api/image/quality

High-quality image generation using FLUX.2 Pro (~5s, production-ready)

POST https://x402engine.app/api/image/text

Image generation with accurate text rendering using Ideogram v3 (best for logos, signage)

POST https://x402engine.app/api/image/face-swap

Identity-preserving face swap using FLUX PuLID for portraits, product shots, and stylized edits

POST https://x402engine.app/api/image/nano-banana

Google's fast, high-quality image generation with aspect ratio control and optional web search

POST https://x402engine.app/api/video/fast

Generate a 5-second video with Kling V3 Standard in landscape, portrait, or square format

POST https://x402engine.app/api/video/quality

Generate a production-quality 5-second video with Kling V3 Pro

POST https://x402engine.app/api/video/hailuo

Generate a cinematic 1080p video with MiniMax Hailuo 2.3 Pro

POST https://x402engine.app/api/video/animate

Animate a public image into a 5-second video with Kling V3 Pro

POST https://x402engine.app/api/tts/lux

Voice-cloning text-to-speech — provide a reference audio clip and generate speech in that voice at 48kHz

POST https://x402engine.app/api/code/run

Run code in isolated sandbox — Python, JavaScript, Bash, R (up to 5 min)

POST https://x402engine.app/api/transcribe

Convert audio to text with speaker identification — covers up to 10 minutes of audio

GET https://x402engine.app/api/crypto/price

Real-time cryptocurrency prices for any coin in any fiat currency

GET https://x402engine.app/api/crypto/markets

Market rankings with price, volume, market cap — filterable by category

GET https://x402engine.app/api/crypto/history

Historical price, market cap, and volume data for any coin

GET https://x402engine.app/api/crypto/trending

Currently trending coins on CoinGecko

GET https://x402engine.app/api/crypto/search

Search for a coin by name or symbol to get its CoinGecko ID

POST https://x402engine.app/api/wallet/balances

Token balances for any wallet across 20+ chains — EVM, Solana, Bitcoin

POST https://x402engine.app/api/wallet/transactions

Transaction history with asset transfers and labels for any wallet

POST https://x402engine.app/api/wallet/pnl

Realized and unrealized profit & loss per token for any wallet

POST https://x402engine.app/api/token/prices

Real-time DEX-derived token prices with OHLC data — up to 200 tokens per request

GET https://x402engine.app/api/token/metadata

Token/asset metadata — name, symbol, decimals, chain info

POST https://x402engine.app/api/ipfs/pin

Pin JSON, files, or URLs to IPFS for decentralized storage

GET https://x402engine.app/api/ipfs/get

Fetch a file from IPFS by CID via gateway

POST https://x402engine.app/api/llm/gpt-4o

OpenAI's flagship multimodal model — strong all-around for text, vision, and reasoning

POST https://x402engine.app/api/llm/gpt-4o-mini

Fast, affordable GPT-4o variant — great for simple tasks and high-volume use

POST https://x402engine.app/api/llm/o1

OpenAI's reasoning model — excels at math, science, coding, and multi-step problem solving

POST https://x402engine.app/api/llm/claude-opus

Anthropic's most powerful model — best for complex analysis, coding, and extended thinking

POST https://x402engine.app/api/llm/claude-sonnet

Anthropic's balanced model — excellent coding, reasoning, and creative writing

POST https://x402engine.app/api/llm/claude-haiku

Anthropic's fastest model — affordable and quick for simple tasks and high throughput

POST https://x402engine.app/api/llm/gemini-pro

Google's most capable model — strong at reasoning, coding, and multimodal tasks

POST https://x402engine.app/api/llm/gemini-flash

Google's fast model — great balance of speed, quality, and cost for everyday tasks

POST https://x402engine.app/api/llm/deepseek

DeepSeek's flagship chat model — strong open-source reasoning and coding at low cost

POST https://x402engine.app/api/llm/deepseek-r1

DeepSeek's reasoning model — chain-of-thought reasoning competitive with o3 at fraction of cost

POST https://x402engine.app/api/llm/llama

Meta's open-source model — great general-purpose performance at very low cost

POST https://x402engine.app/api/llm/grok

xAI's current Grok 4 route — strong reasoning and real-time knowledge

POST https://x402engine.app/api/llm/qwen

Alibaba's flagship open model — excellent multilingual and coding capabilities

POST https://x402engine.app/api/llm/mistral

Mistral's flagship model — strong European AI with great multilingual support

POST https://x402engine.app/api/llm/perplexity

Search-augmented LLM — answers grounded in real-time web search with citations

POST https://x402engine.app/api/llm/gpt-5.2

OpenAI's latest flagship model — top-tier reasoning, coding, and multimodal capabilities

POST https://x402engine.app/api/llm/gpt-5.2-codex

OpenAI's code-specialized reasoning model — optimized for software engineering tasks

POST https://x402engine.app/api/llm/kimi

Moonshot AI's flagship model — strong reasoning and long-context capabilities

POST https://x402engine.app/api/llm/minimax

MiniMax's efficient model — fast and affordable for everyday tasks

POST https://x402engine.app/api/llm/glm

Zhipu AI's flagship model — strong multilingual and reasoning performance

POST https://x402engine.app/api/llm/grok-code

xAI's build-focused model — code generation, analysis, and agentic implementation work

POST https://x402engine.app/api/llm/seed

ByteDance's flagship model — competitive reasoning and generation at low cost

POST https://x402engine.app/api/llm/devstral

Mistral's code-focused model — optimized for software development and technical tasks

POST https://x402engine.app/api/llm/deepseek-v3.2

DeepSeek's latest flagship model — improved reasoning and coding over V3 at same low cost

POST https://x402engine.app/api/llm/gemini-3-pro

Google's Gemini 3.1 Pro Preview on the Gemini Pro compatibility route — advanced reasoning, coding, and multimodal understanding

POST https://x402engine.app/api/llm/gemini-3-flash

Google's next-gen flash model — fast and efficient for everyday tasks with improved quality

How to call

cURL · x402-fetch / x402-axios will auto-handle 402
curl -X POST https://x402engine.app/api/image/fast
/.well-known/x402.json
https://x402engine.app/.well-known/x402

Listed in

Directories this entry was found in.

awesome-x402 paygent-discover pay-skills-pr x402scan