Discover / x402engine.app

x402engine

■ Challenge detected

x402engine — Premium text-to-speech with ElevenLabs — ultra-realistic voices, multilingual support, custom voice IDs

x402
Base
EVM chain 4326
Solana
USDC
AI

Listed price: $0.02
Challenge detected: 9 of the last 9 checks
Median response: 172 ms
Last checked: 16 Oct, 18:49 UTC
In our index since: 26 Sept 2026

Endpoint

curl -i https://x402engine.app/api/tts/elevenlabs
# 402 Payment Required: pay with an x402 client (USDC on Base),
# then send the same request again with the payment attached.

106 listed endpoints · on x402 Bazaar

Checks and payment terms on this page refer to the endpoint above. Other listed endpoints have not been checked individually.

Base URLhttps://x402engine.app/api

POST/llm/o1No price listedx402engine — OpenAI's reasoning model — excels at math, science, coding, and multi-step problem solving
POST/llm/claude-opus-4.8No price listedx402engine — Anthropic's latest Opus model — premium analysis, coding, and long-context autonomous work
POST/ipfs/pinNo price listedx402engine — Pin JSON, files, or URLs to IPFS for decentralized storage
POST/embeddingsNo price listedx402engine — Generate text embeddings using OpenAI text-embedding-3-small — for semantic search, clustering, RAG
POST/llm/perplexityNo price listedSearch-augmented LLM — answers grounded in real-time web search with citations
POST/llm/gemini-3.6-flashNo price listedGoogle's latest fast multimodal model with a 1M-token context window
POST/llm/grok-codeNo price listedx402engine — xAI's build-focused model — code generation, analysis, and agentic implementation work
POST/llm/llamaNo price listedx402engine — Meta's open-source model — great general-purpose performance at very low cost
POST/llm/gpt-5.6-lunaNo price listedx402engine — OpenAI's efficient GPT-5.6 tier with a 1M-token context window
POST/llm/hy3No price listedx402engine — Tencent's efficient reasoning model with a 262k-token context window
POST/llm/minimax-m3No price listedx402engine — MiniMax's multimodal foundation model — 1M context for agentic work, coding, and long-document tasks
POST/llm/gemini-3-flashNo price listedx402engine — Google's next-gen flash model — fast and efficient for everyday tasks with improved quality
POST/llm/gemini-3.1-proNo price listedx402engine — Google's latest flagship — advanced reasoning, coding, and multimodal with extended thinking
GET/web/screenshotNo price listedx402engine — Capture a screenshot of any URL — returns base64-encoded image, supports full-page capture
POST/tts/elevenlabsNo price listedx402engine — Premium text-to-speech with ElevenLabs — ultra-realistic voices, multilingual support, custom voice IDs
POST/llm/claude-sonnetNo price listedx402engine — Anthropic's balanced model — excellent coding, reasoning, and creative writing
POST/llm/gemini-flashNo price listedGoogle's fast model — great balance of speed, quality, and cost for everyday tasks
POST/llm/longcat-2No price listedx402engine — Meituan's long-context model for reasoning, coding, and high-volume inference
POST/llm/gpt-4o-miniNo price listedx402engine — Fast, affordable GPT-4o variant — great for simple tasks and high-volume use
POST/llm/deepseek-v3.2-specialeNo price listedx402engine — DeepSeek V3.2 served on the Speciale compatibility route — strong reasoning and coding at low cost
POST/search/webNo price listedx402engine — Neural web search with highlighted snippets — find articles, news, research, and any web content
POST/llm/gemini-proNo price listedGoogle's most capable model — strong at reasoning, coding, and multimodal tasks
POST/llm/qwenNo price listedx402engine — Alibaba's flagship open model — excellent multilingual and coding capabilities
POST/wallet/transactionsNo price listedx402engine — Transaction history with asset transfers and labels for any wallet
POST/tx/simulateNo price listedx402engine — Simulate EVM transactions before sending — get gas estimates, execution traces, and revert reasons

A dash means the listing gives no price or method. Copy buttons copy the full URL.

Showing 25 of 106 listed endpoints. Next endpoints First endpoints

Agents can find it through the Superstables MCP server and JSON API: GET /api/v1/services/x402engine.app

Recent checks

3 Oct 2026One bar per check, showing up to 20 recent checks. Coloured bars show relative response time, with a minimum visible height; full-height grey bars mean no challenge was detected. “Challenge detected” means HTTP 402 or another detected payment-challenge signal.16 Oct 2026

All 9 checks

When (UTC)	Result	HTTP	Response
16 Oct, 18:49 UTC	Challenge detected	200	172ms
15 Oct, 11:37 UTC	Challenge detected	200	134ms
14 Oct, 00:19 UTC	Challenge detected	200	232ms
12 Oct, 00:34 UTC	Challenge detected	200	186ms
10 Oct, 10:04 UTC	Challenge detected	200	230ms
9 Oct, 06:42 UTC	Challenge detected	200	133ms
8 Oct, 03:32 UTC	Challenge detected	200	168ms
7 Oct, 03:32 UTC	Challenge detected	200	480ms
3 Oct, 17:05 UTC	Challenge detected	402	145ms

Questions

Did our last probe detect a payment challenge?

At our last probe on 16 Oct, 18:49 UTC, it returned HTTP 402 or another detected payment-challenge signal. This check did not test payment, delivery or compatibility with the Superstables client.

What price is recorded for x402engine?

Its listed price is $0.02.

What payment terms does x402engine advertise?

The listing advertises x402, Base, EVM chain 4326, Solana and USDC. It names cdp as its facilitator. Check the seller's current payment challenge and authentication requirements before paying.

Where is x402engine listed?

In x402 Bazaar and x402-list.com. Superstables first indexed it on 26 Sept 2026.

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