x402-payment-test
Cheapest possible Base-mainnet x402 conformance call: settle $0.001 of USDC and receive payer identity, request echo and receipt. Built for agents testing wallets, Payment-Signature, facilitators and settlement. Try GET /x402-echo/sample.
- Category
- Images, audio & video
- Starting price
- $0.001
- Paid calls · 30 days
- 918
- Unique payers · 30 days
- 329
Paid endpoints
118 endpoints, sorted by usage. Prices are per request.
- POST/sentiment
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 unavailable ("engine":"jev"|"fallback" in the response) - under 4.5s guaranteed. Try GET /sentiment/sample.
$0.002Base2calls / 30d - POST/language
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 unavailable - under 4.5s guaranteed. Try GET /language/sample.
$0.002Base2calls / 30d - POST/json/diff
Recursive diff between two JSON documents: added, removed and changed paths.
$0.002Base2calls / 30d - POST/intent
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 Jev is slow or unavailable - under 4.5s guaranteed. Try GET /intent/sample.
$0.002Base2calls / 30d - POST/hash/hmac
Compute an HMAC (MD5, SHA-1, SHA-256 or SHA-512) of text with a given key.
$0.002Base2calls / 30d - POST/hash/hash
Compute an MD5, SHA-1, SHA-256 or SHA-512 hex digest of text.
$0.002Base2calls / 30d - POST/encoding/detect
Detect whether hex-encoded bytes are ASCII, UTF-8, or UTF-16 with a BOM, by decode-validity and BOM presence (not statistical language detection).
$0.002Base2calls / 30d - POST/pii-check
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 Jev, with an automatic Groq-hosted LLM fallback if Jev is slow or unavailable - under 4.5s guaranteed. Try GET /pii-check/sample.
$0.003Base2calls / 30d - POST/classify
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, falling back to a Groq-hosted LLM if Jev is slow or unavailable - under 4.5s guaranteed. Try GET /classify/sample.
$0.003Base2calls / 30d - POST/news
Top Hacker News headlines right now - title, URL, score, comments. Fresh links for agents that need current tech/startup signal. Try GET /news/sample.
$0.001Base2calls / 30d - GET/can-pay
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.
$0.001Base1calls / 30d - POST/discover
Find MCP servers matching a need, ranked by semantic similarity over a curated snapshot of MCP servers. Returns name, endpoint, description, source registry and a 0-1 relevance per match. Paid POST: up to 25 matches. Try GET /discover/sample.
$0.001Base1calls / 30d - GET/crypto
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.
$0.001Base1calls / 30d - GET/probe
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.
$0.001Base1calls / 30d - GET/wallet-intelligence
One call replaces wallet-balance and gas reads across Base, Ethereum, Polygon, Arbitrum and Optimism. Returns native and USDC balances, current blocks, fees and Base x402 payment readiness. One signature instead of ten paid requests. Try GET /wallet-intelligence/sample.
$0.001Base1calls / 30d - POST/llm/llama
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 tokens are not refunded. 20s server-side timeout - never charged if it fires; set your client timeout to 30s. Try GET /llm/llama/sample.
$0.001Base1calls / 30d - POST/token-risk
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 powers, EIP-1967 proxy, renounced ownership, plus Uniswap v2/v3 and Aerodrome liquidity. A Jev avoid/caution/acceptable verdict leads the response, raw signals follow. Holder concentration included on
$0.005Base1calls / 30d - POST/company-leads
B2B lead search: give a sector and a country (city optional), get back people currently working at matching companies - name, title, a real work email, and their company's name, domain (when known) and employee count. Async job - POST creates it, free status polling and result retrieval. Up to 25 leads per call. Try GET /company-leads/sample.
$0.30Base1calls / 30d