the402 x402 endpoint directory

Upscales images 2x or 4x with AI super-resolution, best for photos and illustrations. Venice image/upscale backend (ve

Lists the NFT collections a Base wallet holds — name, count and floor value — spam-filtered, via Covalent. For agents

Independently fetch, hash, timestamp and archive a URL or API response; returns a signed certificate. Merkle-anchored

Cheap, fast "is this a dateable event?" filter for social and web text — one tiny Haiku call returns is_event, confide

Validate data against a supplied schema — checks required fields, nested objects, arrays, enums, string formats, numer

Repair malformed JSON into valid JSON — fixes code fences, trailing commas, single quotes, unquoted keys, bad escapes,

Daily historical exchange-rate series for any currency pair — fiat via ECB reference data, crypto via Coinbase daily c

Convert one base currency to up to 30 targets in a single call — fiat (~200 currencies incl. SAR, AED, COP) and major

Historical OHLC candles for any major crypto asset — hourly or daily, up to 300 candles, with period stats (change %,

Semantic similarity ranking — send a query plus up to 100 candidate texts, get the candidates back ranked by semantic

DeFi exploit/hack history — 574+ incidents sorted by funds lost with technique, chain, classification. Filter by minim

Registration age, expiry and registry status for any domain, from RDAP — the registries' own protocol. Returns days si

Price change and trading volume across 1h, 6h and 24h windows for a Base token, plus a trend read (strong_up → strong_

Pass a comma-separated list of up to 10 Base token addresses and get USD price + 24h change for each in one call. Idea

Top-10 holders with their %, holder count, concentration level (whale risk), and LP-lock %, from GoPlus. Lets agents j

Checks an address against the OFAC SDN list of sanctioned digital-currency addresses. Built for compliance agents and

Lists every DEX pool for a Base token (pair address, DEX, quote symbol, price, liquidity, 24h volume), sorted by liqui

approval-advisor tells you WHAT to revoke; this builds the HOW: the ready-to-sign transaction (to + calldata) for appr

Reads the deepest pool's 24h volume, buy/sell counts, liquidity and price move, and scores how organic the activity lo

Turns raw LP-lock data into a forward calendar: each unlock with its date, the % of LP it frees, the locker (UNCX / Te

Surfaces the LP holders, how much of the LP supply is locked or burned vs pullable, the lockers, and unlock dates. Unl

Give a Base token + a trade size in USD → estimated buy AND sell price impact, whether you can unwind that size withou

Provide a Base transaction hash and get a structured summary: from/to, ETH value, status, gas used, block, method sele

Pass a Base token contract address and get the current USD price, 24h change, liquidity, and volume from DexScreener (

EOA vs contract, ETH + USDC balance, transaction count and activity level — straight from Base RPC. Useful for counter

Given a Base DEX pair (pool) address, returns price, liquidity, 24h volume, buy/sell transaction counts and FDV from D

Checks Sourcify for a Base contract's verification status and returns its ABI as function/event name lists + item coun

Syntax + live DNS (MX/A) + disposable, role and consumer-mailbox detection, as one GO / HOLD / STOP verdict with the r

Use when you need a company's technology and vendor stack from its domain alone. Returns every third-party service it

Do we hold a research note on this asset, protocol, chain or role that no price feed or TVL number will tell you: dead

Roll a die with configurable number of sides (2-1000)

Verify a public product, classified, marketplace or auction listing immediately before an agent relies on or recommend

AI agent market intelligence for autonomous agents. Detects emerging agent-economy opportunities across protocols, inf

A chronological feed of new forecasts and newly linked articles/X posts across Quotient-covered Polymarket Internation

Plexa /v1/quote — executable swap quote: the realizable fill price at your trade size, not a mid/spot price feed. Retu

Agent Confession API

Generates subtitles from video with Whisper v3, word-wrapped and ready for VLC / Premiere / FFmpeg. Auto-detects langu

Searches shopping results for a product query (and optional retailer), returning ranked results with product title, bu

Video to audio extractor / video to audio converter. Extract MP3 audio track from any video URL (MP4, MOV, WEBM, MKV,

Proprietary, daily-scored US residential real-estate deals for investors. Each on-market listing is graded (STRONG / M

Convert barcodes to Amazon ASINs. Provide numeric barcode strings, and each barcode maps to an array of ASIN results w

LastLook Data — current price, 24h change, market cap, and volume for any supported cryptocurrency. Use ?coin=BTC|ETH|

Verify a legal entity or LEI against current GLEIF data before an agent relies on the business identity. $0.02 USDC.

Pay $0.02 USDC to store a file for 7 days. Send filename, optional content_type, and base64-encoded file bytes as JSON

Premium/discount of a tokenized stock's LIVE Robinhood Chain (Uniswap) price vs its index-implied fair value -- the pu

Summarize text in a chosen style: brief, detailed, or bullet points.

Translate text into a target language, with source language auto-detection.

Parse a job posting into structured JSON: title, skills, salary, requirements.

Returns whale, CEX, bridge, and stablecoin flow alerts for a chosen chain and lookback window, each with direction, ve

Send a question about longevity, aging, or lifespan science. Returns a request ID to poll for the AI-generated answer