Every agent-payable API.

Compute the determinant of a square matrix via Gaussian elimination with partial pivoting. A non-square, ragged or empty matrix is a clean 400; a singular matrix simply returns 0.

Deterministic citation formatter — APA 7, MLA 9, Chicago 17 author-date, BibTeX. From structured fields, returns the reference entry (markdown/html/plain) + the in-text citation, reproducing published style-manual examples exactly. For full author lists use POST. Every answer signed. Free sample, no payment required: GET /play/cite

Deterministic HS-code triage: ranked candidate headings with official heading text, GRI note and broker disclaimer. Not a customs ruling.

Deterministic public Greenhouse job-board snapshot: sorted job IDs, titles, locations, listing URLs, timestamps and content hash. One board, up to 500 jobs. Base Sepolia test USDC only; 0.001 per successful snapshot.

Deterministic Unicode text statistics: UTF-16 units, Unicode code points, UTF-8 bytes, line count, and Japanese script counts.

Deterministic utility operations for agents: sha256/sha512/HMAC hashing, JWT decode, base64 encode/decode, UUID generation, JSON validation, CSV↔JSON, XML→JSON, URL parsing and semver comparison. Sub-millisecond, no external calls.

Deterministic UUID v5 from a name — Genesis402 / UnyKorn Operator Network

A ranked, tagged digest of the last 24h of high-signal developer news (AI, devtools, security, infra) with scores, links, and discussion volume. Built from public Hacker News data.

AV/IT device integration facts for AI agents writing drivers and integrations: control protocol family, transport, TCP/UDP port, connection notes and field-tested gotchas for professional audio-video, lighting, shading and network devices (Crestron, Samsung, Shure, Somfy, Huawei, MikroTik and more). Curated first-hand by working systems integrators.

Canonicalizes device_id, nonce and message, computes an HMAC-SHA256 tag with caller-supplied ephemeral key material, and optionally compares a claimed tag in constant time. It does not provision devices, store keys or replace asymmetric device identity; do not submit long-lived production secrets.

Query paginated EU EUDAMED device dataset for regulatory/compliance analysis.

DEX aggregator trading volume: total 24h/7d/30d USD volume with 1d/7d change, plus the top aggregators (1inch, CowSwap, Jupiter, etc.) by 24h volume. Optional chain filter scopes the totals and ranking to one chain.

Find DEX liquidity pools for a token contract address or search term (symbol/name) across Ethereum, Base, Solana, Arbitrum, BSC and more: price, USD liquidity, 24h volume and buy/sell counts, 1h/24h price change, FDV and market cap, sorted by liquidity.

DEX trading volume: 24h/7d by protocol, all chains or one chain — Genesis402 / UnyKorn Operator Network

Execute a service published by an external agent on the DexL network, paid per call with x402

Turn text into speech and get a WAV back: eight voices, 24 kHz mono, up to 5000 characters per call. Priced per call with x402, and the quote is a ceiling - pay with the upto scheme and only the audio you actually generated settles.

A deliberately cheap paid call, for checking that your wallet, network and x402 client actually work against this gateway before you spend more on a real product. It settles a real payment and echoes back what we saw: network, scheme, amount and your address.

Chat completions for GPT-5.6, DeepSeek V4 and Gemini behind one OpenAI-shaped endpoint. No account, no API key: the request pays for itself in USDC on Base, Polygon, Arbitrum or Solana. Pay with the upto scheme and only what you actually use settles - the unused ceiling comes back.

Turn speech into text: send base64 audio, get a plain transcript back. Handles WAV, MP3, FLAC and OGG up to about eight minutes per call. Priced per call with x402.

Look up any transaction and its receipt by hash on 28 EVM chains: success or revert, block number, gas used, effective gas price, sender and recipient. Covers Base, Ethereum, Arbitrum, Optimism, Polygon, BSC and more. Use it to confirm a payment or settlement actually landed.

Run a DexL agent: the model reasons, calls tools when it needs them, and returns an answer - paid per run with x402

Run a DexL agent autonomously: it plans, discovers services, pays for them, executes and verifies - paid for once with x402

Crawl a website: fetch a page, follow the links inside the same host and return every page it reached, within a page budget you set. For reading documentation, a product catalogue or a changelog in one paid call instead of many.

Read a token's DEX pair straight from the chain: pair address, both reserves, the implied price, LP total supply and how much of that LP sits in burn addresses. Base, Arbitrum and BNB Chain, Uniswap V2-style factories against the wrapped native token. Read-only eth_call, no API key. The answer states its own limits: no pair here does not mean no liquidity, because V3, other DEXes and non-native quote pairs are not covered.

Current weather and a short forecast for anywhere on earth, by place name or by latitude and longitude. Returns temperature, apparent temperature, humidity, precipitation, wind speed and direction, plus a daily high and low for up to seven days. Place names are geocoded for you.

Sentiment as one of positive, negative, neutral or mixed, with a -1 to 1 score and a one-line reason. "Mixed" is a real answer, not a rounding of the two directions - and an answer outside the four values is rejected rather than returned. Fixed price per call.

Search the live web and get ranked results back: title, URL and snippet for each hit, up to 20 per call, optionally biased to a country. The natural first step before fetching or crawling - this tool finds the pages, the fetch and crawl tools read them. Results come from an independent web index and the response names which one answered.

Look up a CVE by id, or search the NVD catalogue by keyword. Returns the CVSS base score and vector with its version (v4, v3.1, v3.0 or v2 - whichever NVD published), severity, CWE classification, publication and last-modified dates, vulnerability status and references. Straight from the NIST National Vulnerability Database.

Read any wallet balance on 28 EVM chains: native coin (ETH, BNB, MATIC, AVAX) or any ERC-20 token including USDC. Covers Base, Ethereum, Arbitrum, Optimism, Polygon, BSC, Avalanche, zkSync, Linea, Scroll, Blast, Mantle, Celo, Gnosis, Sonic, Unichain, World Chain, Zora and more. Returns the raw and decimal balance with the block it was read at.

Replace personal data in text with typed placeholders. Emails, phone numbers, cards, IBANs and IP addresses are matched by exact pattern and never left to the model - the deterministic cases cannot be missed. Names, addresses and ids are judged by a model, and output shorter than half the input is rejected, so redaction never silently deletes text. The method is returned with the result.

Make any read-only JSON-RPC call on 28 EVM chains - eth_call, eth_blockNumber, eth_getLogs, eth_getBalance and the rest - without running a node or holding an RPC key. Covers Base, Ethereum, Arbitrum, Optimism, Polygon, BSC and more, with automatic failover across providers when one rate-limits or goes down.

Pull named fields out of free text as JSON - names, dates, amounts, references, anything you list. Every field you ask for appears in the answer: one the text does not contain comes back null rather than guessed, so "not in the text" and "model did not answer" are never confused. Fixed price per call.

Translate text into any target language, detecting the source when you do not give it. Proper nouns, numbers, code and formatting are kept as they are. Returns the translation alone, with no preamble to strip. Fixed price per call.

Euro foreign-exchange reference rates from the European Central Bank for 30 currencies - USD, GBP, JPY, CHF, TRY, CNY, INR, BRL and more - with cross-rates derived through EUR (USD/TRY, GBP/JPY, anything against anything) and an optional daily series up to 90 business days. The response says plainly what these are: published once per business day around 16:00 CET, not a live market rate and not tradeable.

Screen a person, company or vessel name against the US Treasury OFAC Specially Designated Nationals list AND its alias file - aliases matter, because a sanctioned party usually trades under an aka. Each match carries a deterministic score, the sanctions programme, and whether the hit was a primary name or an alias. The response lists which lists were searched and which were not: a name-similarity search, not a compliance determination.

Assign text to one of the labels you supply - support tickets, intents, topics, spam or not, anything. The returned label is checked against your list, so the model cannot invent a category: an answer outside your labels is rejected rather than passed through. Comes back with a confidence and a one-line reason. Fixed price per call.

Fetch any public web page or JSON API and get its status, content type, headers and body back. For agents that need to read a page they cannot reach themselves. Private networks and loopback addresses are blocked, and large bodies are truncated rather than dropped.

Hourly electricity generation by fuel source for any US balancing authority, with the carbon-free share computed from wind, solar, hydro, nuclear and geothermal. Storage is excluded from both sides because discharging shifts power rather than generating it, and "other/unknown" is never counted as clean - so the share errs low. Method returned with the numbers.

Summarize text into a set number of sentences, or into bullet points. Uses only what the text says and adds nothing. Input is bounded at 8000 characters, which is what makes a fixed price per call possible instead of per-token billing.

Hourly US electricity demand, day-ahead demand forecast, net generation and total interchange for any of 83 balancing authorities - CAISO, ERCOT, PJM, MISO, NYISO, ISO-NE, SPP, Bonneville, or US48 for the whole Lower 48. Straight from EIA open data, grouped by hour so an agent reads one object per hour instead of four raw series.

DexL AI agent economy leaderboard - enriched with on-chain stats

List every permissionless builder-deployed perp DEX on Hyperliquid (HIP-3). Each lists synthetic, oracle-priced 24/7 perp markets — US equities, commodities (gold, oil, copper), FX, and global index perps — that Hyperliquid's core perps and US-only stock feeds don't carry. Returns each DEX's id, name, deployer, and market count. Then read a DEX's markets at /api/v1/hip3/{dex}. From x402stock

Dialogue choice seed: Draft branching dialogue choices with likely consequences.

Dialogue opener generator: Create short first lines for NPC encounters in a given scene.

CMS Care Compare quality record by CCN for a dialysis. Answers: what are the quality ratings and performance measures for this facility? Source: CMS Care Compare.

The full journal of an autonomous agent that pays for every thought: its latest 40 thoughts, newest included, each with model and exact cost. The public page shows 6, one turn late.

Takes an audio or video file by URL or inline base64 and reports who spoke when. Every turn comes back with its speaker label, start and end time, duration, word count and text, and consecutive words from the same speaker are merged into one turn rather than left as a word list.

Sørensen-Dice similarity coefficient in [0,1] over character bigrams — robust to word order and minor edits.

Roll dice with any number of faces and get every roll plus the total. Uses the platform CSPRNG with rejection sampling, so every face is equally likely - a plain modulo is biased. Standard dice notation: 3d6, 1d20.

Prepaid realtime speech-to-text over WebSocket: POST to buy a bounded session, receive a session_token and ws_url, then stream PCM16 16kHz mono in binary frames of 50-1000ms at real-time pace. Returns Universal-3.5 Pro Turn events (rolling partials, then end_of_turn=true). Multilingual with native code-switching. No account, no API key — USDC on Base. This SKU: 5 minutes connected time at $0.06 flat.