x402.agentindex.world publishes 34 machine-payable endpoints over the x402 protocol, priced from $0.001 to $0.6758 per call. Each was probed directly; the response code below is what it returned.
| Endpoint | Method | Price | Probe |
|---|---|---|---|
| /agent-health | GET | $0.001 | 402 |
| /can-pay | GET | $0.001 | 402 |
| /classify | POST | $0.003 | 402 |
| /crypto | GET | $0.001 | 402 |
| /decide | POST | $0.001 | 402 |
| /discover | POST | $0.001 | 402 |
| /extract | POST | $0.002 | 402 |
| /gas-price | GET | $0.001 | 402 |
| /guard | POST | $0.001 | 402 |
| /intent | POST | $0.002 | 402 |
| /language | POST | $0.002 | 402 |
| /llm/claude-sonnet | POST | $0.0113 | 402 |
| /llm/gpt-mini | POST | $0.005069 | 402 |
| /llm/llama | POST | $0.001 | 402 |
| /news | GET | $0.001 | 402 |
| POST | $0.002 | 402 | |
| /pii-check | POST | $0.003 | 402 |
| /probe | GET | $0.001 | 402 |
| /rank | POST | $0.001 | 402 |
| /research | POST | $0.005 | 402 |
| /search | POST | $0.001 | 402 |
| /sentiment | POST | $0.002 | 402 |
| /spam-check | POST | $0.002 | 402 |
| /summarize | POST | $0.002 | 402 |
| /token-risk | POST | $0.005 | 402 |
| /toxicity | POST | $0.002 | 402 |
| /translate | POST | $0.002 | 402 |
| /v1/chat/completions | POST | $0.6758 | 402 |
| /verify | POST | $0.001 | 402 |
| /wallet-balance | GET | $0.001 | 402 |
| /wallet-intelligence | GET | $0.001 | 402 |
| /weather | GET | $0.001 | 402 |
| /web-read | POST | $0.002 | 402 |
| /x402-echo | GET | $0.001 | 402 |
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 a…
Check whether a Base wallet holds enough USDC to pay an x402 amount (default $0.001). Returns balance, can_pay, shortfall. The checklist agents run before spending. Try GET /can-pay/sample.
Text classification with your own custom labels (2-20) - categorize a support ticket, a review, or any text into the best-fitting label, with a confidence score and an alternate label. Powered by Jev,…
Live spot prices for crypto coins (BTC, ETH, SOL, ...) in USD or another fiat, with 24h change. Accepts tickers or CoinGecko ids. Try GET /crypto/sample.
Ask up to 20 typed yes/no, multiple-choice or ordinal-scale questions about one shared piece of context in a single call - each answered with a real probability (Jev decision primitives), not generate…
Find MCP servers matching a need, ranked by semantic similarity over a curated snapshot of 10101 MCP servers. Returns name, endpoint, description, source registry and a 0-1 relevance per match. Paid P…
Extract structured data from a URL or raw text into strict JSON matching a schema you provide. Fields the content doesn't support come back null - never an invented or approximate value, and an unmatc…
Read the live gas price, EIP-1559 base fee and estimated native-transfer cost on Base, Ethereum, Polygon, Arbitrum or Optimism. No RPC key or account. Try GET /gas-price/sample.
Ask whether a tool call should run automatically, need human confirmation, or be denied, given the user's request - returns allow/ask/deny with a probability. Advisory only: like any LLM-based judge i…
Intent detection: classify text as a question, request, complaint, compliment, or other, with a confidence score and an alternate label. Powered by Jev, with an automatic Groq-hosted LLM fallback if J…
Language detection: identify which of 20 common languages (or "other") a text is written in, with a confidence score. Powered by Jev, with an automatic Groq-hosted LLM fallback if Jev is slow or unava…
Claude Sonnet API - pay per call, no API key. OpenAI-format chat completions on anthropic/claude-sonnet-5.5, pinned to Anthropic's own OpenRouter endpoint for reliability. You sign a fixed price compu…
GPT Mini API - pay per call, no API key. OpenAI-format chat completions on openai/gpt-5.4-mini, pinned to OpenAI's own OpenRouter endpoint for reliability. You sign a fixed price computed from your ma…
Llama API - pay per call, no API key. OpenAI-format chat completions on meta-llama/llama-4-maverick, pinned to DeepInfra for reliability. You sign a fixed price computed from your max_tokens; unused t…
Top Hacker News headlines right now - title, URL, score, comments. Fresh links for agents that need current tech/startup signal. Try GET /news/sample.
Extract a public PDF (by HTTPS URL or base64) into clean Markdown - headings and tables preserved via layout-aware parsing, plus title/author/page count/date metadata and a real token count. Text cont…
PII detection: flag whether text contains personally identifiable information (name plus contact details, email, phone, address, government ID, financial account) with a confidence score. Powered by J…
Probe any public URL and report if it is an x402 paywall - price, network, payTo, scheme. Shop paywalls before you spend. Try GET /probe/sample.
Rank up to 50 documents by relevance to a query in a single call - each document returned with its relevance probability, sorted highest first. Try GET /rank/sample.
Jev-powered research: routed search, cited answer, claims verified against sources. Ask a question, get a 5-8 sentence answer, each claim tagged to a numbered source, built from real page content - no…
Web search: search the web and get ranked results with page content. Up to 10 results with title, URL, snippet and publish date, plus clean full-page Markdown for the top 3 by default. Up to 5 queries…
Sentiment analysis: classify text as positive, negative, or neutral with a confidence score and an alternate label. Powered by Jev, with an automatic Groq-hosted LLM fallback if Jev is slow or unavail…
Spam detection: classify text as spam or not spam with a confidence score. Powered by Jev, with an automatic Groq-hosted LLM fallback if Jev is slow or unavailable - under 4.5s guaranteed. Try GET /sp…
Summarize a URL, raw text or HTML at the length you request - short, medium or long - with the source noted. Neutral and factual, no invented facts. Try GET /summarize/sample. Part of the AgentIndex c…
Base token risk scan: on-chain rug check and honeypot-style flag detection for any ERC-20, no GoPlus, DexScreener or other vendor - real Base token safety. Reads bytecode for mint/blacklist/pause/tax …