AI models & inference: MCP servers, A2A agents and x402 APIs
Call AI models through an agent or MCP server: chat completions, embeddings and model gateways. 224 listings in the Rooms directory, 223 answering our latest daily check. Each one links to its endpoint, how to call it and its live status.
- Brave Search API Live x402
Web search over Brave's independent index. Returns ranked pages with title, URL, and snippet, plus news, video, and discussion results when relevant. Use it to find current sources on any topic. Pass q, and optionally c…
x402 paid API · 8 endpoints · check 90/100
- corpusAI Cloud Pricing Live x402
Cloud price history for AWS, GCP and Azure, from price-change events per zone to monthly series back to 2014, GPU rental prices across neo-clouds and marketplaces, and LLM token prices per model: free charts, and an API…
x402 paid API · 12 endpoints · check 90/100
- gitBeacon API Live x402
gitBeacon — GitHub trend intelligence for AI agents. A daily scan of trending new GitHub repos, LLM-analyzed into a structured digest (title, summary, top categories, language trends, emerging tools, notable projects, a…
x402 paid API · 1 endpoint · check 90/100
- TenPrint Live x402
Post-quantum attestation and evidence services for AI agents. Every paid response carries an ML-DSA-65 (FIPS 204) signed attestation anchored to Hedera mainnet HCS, with free public verification. Payment: x402 (USDC on…
x402 paid API · 12 endpoints · check 90/100
- x402 Atlas Web Search, News & Page Reader Live x402
Real-time web search for AI agents — search the web and get ranked SERP-style results as clean JSON: title, URL, snippet, relevance score, optional LLM-generated answer. Find up-to-date information online — latest news,…
x402 paid API · 4 endpoints · check 90/100
- x402engine Live x402
125 production APIs behind HTTP 402 micropayments. 87 LLMs, Kling V3 and Hailuo video generation, image generation, code execution, travel search, web scraping, TTS, and transaction simulation. Pay with USDC on Base, US…
x402 paid API · 12 endpoints · check 90/100
- aarn.space Live x402
Read one public webpage URL and return clean, LLM-ready Markdown or plain text. Designed for AI agents that need webpage contents, RAG context, research or summarization. (2 paid endpoints on api.aarn.space.)
x402 paid API · 2 endpoints
- agentdata-api.sander-van-aard.workers.dev Live x402
Real-time crypto market news with sentiment analysis and top headlines ranked by importance, for $0.01 per call. One request, no parameters needed — get the latest market-moving stories as structured JSON, ready for tra…
x402 paid API · 12 endpoints
- agentindex.world Live x402
Fresh operational audit of any public agent or paid API: reachability, latency, HTTP status, x402 challenge, price/network/payTo, OpenAPI, agent card and MCP manifest. Returns a 0-100 score, verdict and issues. Try GET…
x402 paid API · 12 endpoints
- agentreadiness.halowerk.com Live x402
Publisher discovery audit fetches current public evidence from the supplied target and evaluates the documented criterion. It returns the observation, threshold, verdict, exact evidence source, limitations and a mode-sp…
x402 paid API · 12 endpoints
- base64encode.use.x402atlas.com Live x402
Fetch any public URL and return its content as base64 with the content type and a ready-to-use data URI. Embed images, PDFs and files directly in LLM and API calls without downloading them yourself. Clean JSON.
x402 paid API · 1 endpoint
- chat.gedx402.com Live x402
Multi-model chat completions. POST messages[] and set model to any LLM id from GET /v1/models; dynamic USDC pricing scales with model and token usage. Hero: GET /heroes/chat-completions.
x402 paid API · 1 endpoint
- context-relay.contextrelay.workers.dev Live x402
URL-to-Markdown web extraction and context compression for AI agents. Fetch a public web page and return clean, task-relevant, citation-verifiable LLM context with exact excerpts, locators, hashes, and estimated tokens…
x402 paid API · 1 endpoint
- coord.taifoon.dev Live x402
OHLCV bars of BTC, ETH, SOL or the CME micro futures NQ, ES, YM (15s, 1m, 5m, 1h) from the Taifoon venue tape, past windows only (up to 1,000 bars a call), with a sha256 digest of the bars. The tape seals a past window,…
x402 paid API · 7 endpoints
- datastand.dev Live x402
Cost-optimised endpoint selection: name a capability (web search, token safety, enrichment) and get the x402 endpoints that provide it ranked cheapest-first in USDC per call, with adoption stats. Refreshed daily from th…
x402 paid API · 10 endpoints
- edge.innovalyxx.com Live x402
Returns a 0–100 generative-engine visibility score and estimated LLM mention rate for a URL. Cost $0.01 per call. Not HTTP uptime, TLS, or a credit.
x402 paid API · 1 endpoint
- eltociear-tokenguard.hf.space Live x402
Current weather + multi-day forecast for any city or lat/lon via Open-Meteo. Temperature, humidity, wind, precipitation, WMO condition codes. (125 paid endpoints on eltociear-tokenguard.hf.space.)
x402 paid API · 12 endpoints
- erb-llm.com Live x402
Privacy-first chat API: prompts run on a local open-weight model on dedicated hardware - your data is never forwarded to OpenAI/Anthropic or any third-party LLM cloud. OpenAI-compatible chat completions: summarize, draf…
x402 paid API · 5 endpoints
- flat-rate-llm.kikoribera03.workers.dev Live x402
Generates a 1024x1024 JPEG from a text prompt with FLUX.1 [schnell] in about 2 seconds. Returns a hosted image URL valid for 24 hours that you can hand straight to the next tool; add inline=true to also get the base64.…
x402 paid API · 12 endpoints
- foundry-par007-machine-revenue-mainnet.inference-chip-index.workers.dev Live x402
Find recently updated ClinicalTrials.gov study identifiers, titles and registry status for a condition, with the registry processing date. No medical conclusion. (5 paid endpoints on foundry-par007-machine-revenue-mainn…
x402 paid API · 5 endpoints
- gondola-ai.com Live x402
OpenAI-compatible chat completions across the Venice AI model catalog. Pay per request in USDC on Base via x402, with no account and no API key. Overpayment is never lost: it banks as reusable wallet credit for your nex…
x402 paid API · 3 endpoints
- losbeto.xyz Live x402
LLM inference as a pay-per-call commodity — ask anything (?q=...) and get the first live answer from a multi-provider failover chain (Groq, Gemini, paid tiers when configured). One flat price, any subject, no API keys..…
x402 paid API · 12 endpoints
- macaroonnetwork.com Live x402
Discover which Macaroon Network service, endpoint, or data product to call next. Searches Macaroon's own published catalogue -- title, category, description, price, and trust evidence metadata -- and returns a short, so…
x402 paid API · 12 endpoints
- madoromi.fun Live x402
Japanese dream-interpretation agent API. Returns a Gemini-generated full interpretation from madoromi's curated dream-motif knowledge base (result schema agent-dream-insight.full.v1). Japanese output only. Dream text is…
x402 paid API · 1 endpoint
- masterclaw.dev Live x402
OpenAI-compatible chat completions backed by DeepSeek (GET probe variant). Answers open-ended questions and returns reasoned analysis.
x402 paid API · 1 endpoint
- md.fastdb.in Live x402
Scrape any web page: URL to Markdown / HTML to Markdown for LLM context. Readability article extraction strips nav, ads, scripts, and footers while keeping tables and code blocks. Optional render:true executes JavaScrip…
x402 paid API · 3 endpoints
- modelprices.xyz Live x402
Claude pricing table: what every Claude model costs per token right now — Claude 5, Claude Opus, Claude Sonnet, Claude Haiku — from Anthropic and every provider that resells or hosts them (Bedrock, Azure, Vertex, OpenRo…
x402 paid API · 12 endpoints
- notary.forgemesh.io Live x402
Notarize AI output: a signed Ed25519 attestation of the model response plus sha256 content hash, receipt token, and Merkle anchor status for one AI inference — a cryptographic receipt for inference that lets you prove a…
x402 paid API · 2 endpoints
- openai.mm.family Live x402
gpt-6.1-sol (OpenAI's newest model) and 25 more OpenAI chat models (gpt-6, gpt-5.x, gpt-4.1, gpt-4o, o-series), paid per call in USDC. OpenAI token rates on Flex (half price, may answer 429; default where offered), Stan…
x402 paid API · 12 endpoints
- ozdreamtools.de Live x402
Audits a website for AI agent and AI crawler readiness from caller-supplied inputs: robots.txt, HTML, headers, llms.txt, sitemap lastmod, /.well-known. Names the policy per AI token (GPTBot, OAI-SearchBot, ChatGPT-User,…
x402 paid API · 12 endpoints
- payload402.edgebytenet.workers.dev Live x402
Convert amounts between ISO 4217 currencies using ECB daily reference rates (Frankfurter). Use for invoices, travel budgets, expense reports, and shopping comparisons when you need a verifiable rate instead of LLM arith…
x402 paid API · 4 endpoints
- promptqualityscore.com Live x402
Quick pre-flight quality score: composite (0-100) + grade (A-F) + three framework sub-scores (PEEM, RAGAS, G-Eval) + verdict. Run upstream of any other paid call to filter weak prompts before inference. The cheapest gat…
x402 paid API · 1 endpoint
- scan.openverbs.com Live x402
Scan source code or configuration text for hardcoded secrets: AWS access keys, GitHub/Slack/Google tokens, Stripe and OpenAI keys, PEM private-key blocks, JWTs and high-entropy secret assignments. Placeholder values are…
x402 paid API · 4 endpoints
- scopeapi.dev Live x402
Generate text embeddings and semantic embedding vectors using OpenAI text-embedding-3-small for vector search, semantic similarity, clustering, retrieval, and RAG workflows. (12 paid endpoints on scopeapi.dev.)
x402 paid API · 12 endpoints
- shizu.me Live x402
Fetch any public web page and return its main content as clean Markdown, ready to feed to an LLM. Boilerplate (nav, ads, footers) stripped. Input: url (public http/https). Returns {url, markdown, word_count}. (30 paid e…
x402 paid API · 12 endpoints
- shopify-ai-rank-checker.underscoredone.com Live x402
Checks how well a Shopify store's products show up when AI shopping assistants such as ChatGPT, Gemini, Perplexity, Grok, and Copilot search for products, and reports the store's rank and its closest competitors. Search…
x402 paid API · 1 endpoint
- stelardigital.com Live x402
Sentiment score (-1 bearish to +1 bullish) and label for arbitrary text, or for a crypto asset based on its recent price action, via Claude Haiku. For agents gauging market mood or scoring news, social posts, or free te…
x402 paid API · 4 endpoints
- strale.io Live x402
OCR on any image via Claude vision. Works on screenshots, photos of documents, handwritten notes. Returns text with confidence. (152 paid endpoints on api.strale.io.)
x402 paid API · 12 endpoints
- telemost.io Live x402
Telegram advertising data: available ad networks and their minimum deposits, compare where to run campaigns. (13 paid endpoints on api.telemost.io.)
x402 paid API · 12 endpoints
- tensorfeed.ai Live x402
Agent morning brief. One paid call returns the last 24 hours of AI pricing changes, new and removed models, service-status incidents, and top news headlines. The endpoint an agent calls on boot. (9 paid endpoints on ten…
x402 paid API · 9 endpoints
- terradeed.co.uk Live x402
Clean, LLM-ready markdown from any URL. JavaScript rendering included. Feed web content directly into agent context without parsing HTML. (2 paid endpoints on api.terradeed.co.uk.)
x402 paid API · 2 endpoints
- tokenplans.dev Live x402
Full JSON catalog of verified AI coding-subscription plans across 31 providers (Claude, OpenAI, Cursor, Gemini, and more). Each record: monthly price and cadence, included models, usage ceilings and rate-limit windows,…
x402 paid API · 1 endpoint
- twin.unykorn.org Live x402
LLM chat completion (qwen2.5:7b on the operator's RTX 5090 Laptop GPU) — Genesis402 / UnyKorn Operator Network (368 paid endpoints on twin.unykorn.org.)
x402 paid API · 12 endpoints
- us-agentic.com Live x402
Fetch a public URL and return clean LLM-ready markdown from static HTML.
x402 paid API · 1 endpoint
- uxus.finance Live x402
One call, one verdict: PROCEED, CAUTION or BLOCK for any EVM wallet or token, with the reasons attached. $0.02 USDC per call on Base, no API key or account. GET ?address=0x... (required), chain=base|ethereum, type=walle…
x402 paid API · 7 endpoints
- webbersites.com Live x402
ANTHROPIC-COMPATIBLE /v1/messages — Claude Haiku 4.5 through the exact Anthropic API dialect: same request/response shape, no Anthropic account, the x402 payment IS the auth. Point an Anthropic SDK's base_url at https:/…
x402 paid API · 12 endpoints
- web.cyberwarex.com Live x402
Read any live web page as clean, LLM-ready text. Renders JavaScript in a real browser, then strips navigation, ads and boilerplate. Use it when a plain HTTP GET returns empty or garbled HTML: single-page apps, dynamic f…
x402 paid API · 5 endpoints
- x402-gateway-production.up.railway.app Live x402
x402engine — Run code in isolated sandbox — Python, JavaScript, Bash, R (up to 5 min) (4 paid endpoints on x402-gateway-production.up.railway.app.)
x402 paid API · 4 endpoints
Related capabilities
x402 paid APIsWeb scrapingAgent infrastructureOn-chain dataMarketing & SEOVideo & audioKnowledge & memoryWeb search
How to use one
MCP servers plug into Claude, ChatGPT, Cursor and other AI clients; A2A agents take tasks over JSON-RPC; x402 APIs charge per call in USDC with no account. Guides: A2A vs MCP · How to call an A2A agent · x402 for agents.
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