STAGINGThis is a preview of nitrograph.com. Actions here hit the production API.
Catalog

Every agent-payable API.

The companies you know, and thousands of endpoints your agent will discover. The catalog groups the network's 26,000+payable services under the companies that operate them — one company row can carry many service endpoints. Placement can't be bought.

All APIs

26,459 APIs
APICompanyCategoryPrice / callStatus
Solidity Security Scan: AI first
Send Solidity source code; get a structured JSON security review: findings with severity, SWC/category, location, exploit explanation and fix, plus centralization/rug-pull powers and an overall risk level. Automated first pass by an AI agent, not a substitute for a professional audit.
emberagent.uk-$0.09listed
Solidity heuristic pattern scan
Deterministic static pattern scan of Solidity smart-contract source text - a fixed ruleset flagging tx.origin authentication, delegatecall, selfdestruct, unchecked low-level calls, unchecked .send(), floating pragmas, block-timestamp dependence, weak block-derived randomness, value-call reentrancy surface, inline assembly, ecrecover, and missing SPDX headers. Returns line-anchored findings with severities.
agent402.tools-$0.01listed
Solve API
Send a task in plain words and let the router pick and run the right capability. One endpoint for any capability. Send a task in plain words, or name a capability and its input, and the gateway resolves which capability is needed, ranks the providers that…
x-402.online-$0.05listed
Sonic (s) Price In Usd Now, With 24h And 7d Change API
Sonic (S) price in USD now, with 24h and 7d change — Genesis402 / UnyKorn Operator Network
unykorn.org-$0.001listed
Sonic ERC-20 balance
Sonic ERC-20 balance. ERC-20 token balance of a wallet on Sonic (USDC, USDT, WETH or any token, via balanceOf): raw amount, decimals, symbol and the human-readable amount, live from the token contract. Use to check stablecoin or token holdings before a transfer or trade; for the native coin use sonic_balance. Both inputs are 0x addresses (40 hex characters); no contract returns 404 and a non-ERC-20 contract 422, both uncharged.
workers.dev-$0.003listed
Sonic ERC-20 token info
Sonic ERC-20 token info. Look up the name, symbol, decimals and total supply of an ERC-20 token contract on Sonic, live from the contract. Use to identify an unknown token address or to format raw amounts; for a holder's balance use sonic_token_balance. Input is a ticker (USDC, WETH…) or the token's 0x contract address; an address that is not an ERC-20 contract returns 422, uncharged.
workers.dev-$0.003listed
Sonic account nonce
Sonic account nonce. Read the transaction count (nonce) of a 0x address on Sonic, both confirmed and including pending transactions. Use to build the next transaction or to tell whether an address has ever sent anything; for its balance use sonic_balance. A malformed address is rejected with 400, uncharged.
workers.dev-$0.003listed
Sonic contract check
Sonic contract check. Check whether a 0x address on Sonic is a smart contract or a plain wallet: bytecode size, and whether it is an EIP-1167 minimal proxy and which implementation it points to. Use before sending funds or approving a spender; for a fuller risk verdict use check_counterparty. A malformed address is rejected with 400, uncharged.
workers.dev-$0.003listed
Sonic gas price
Sonic gas price. Current gas price on Sonic (eth_gasPrice): gas price, base fee and suggested priority fee in gwei, plus what a plain S transfer (21,000 gas) costs right now. Takes no input. Use before sending a transaction or to decide whether to wait; for the fee a past transaction actually paid use sonic_receipt.
workers.dev-$0.003listed
Sonic native balance
Sonic native balance. Native S balance (eth_getBalance) of any 0x wallet address on Sonic at the latest block, in wei and in S. Use to check whether a wallet can pay gas or a transfer; for ERC-20 tokens use sonic_token_balance, for all holdings at once use wallet_portfolio. A malformed address is rejected with 400, uncharged.
workers.dev-$0.003listed
Sonic recent event logs
Sonic recent event logs. Recent contract event logs on Sonic (eth_getLogs): the events a contract emitted over the last N blocks (1-1,000, default 50), optionally filtered by topic0 (the 0x 32-byte event signature hash). Returns up to 100 logs with block, transaction hash and topics. Use to watch transfers or contract events; for one transaction's outcome use sonic_receipt.
workers.dev-$0.003listed
Sonic transaction
Sonic transaction. Look up a Sonic transaction by hash: sender, recipient, value in S, nonce, gas limit, the 4-byte function selector and its block. Use to see what was sent or whether it exists; for success or failure and fees paid use sonic_receipt, for emitted events sonic_logs. Input is a 0x-prefixed 64-hex hash; an unknown hash returns 404, uncharged.
workers.dev-$0.003listed
Sonic transaction receipt
Sonic transaction receipt. Transaction receipt on Sonic (eth_getTransactionReceipt): success or reverted, gas used, effective gas price, fee paid in S, number of event logs and any contract created. Use to confirm a payment or call went through; for sender, value and calldata use sonic_tx. Input is a 0x-prefixed 64-hex hash; a pending or unknown hash returns 404, uncharged.
workers.dev-$0.003listed
Sonny Boy API
Sonny Boy — Samson retelling in Hawaii for understanding betrayal, transformation, and redemption arcs.
substratesymposium.com-$0.01listed
Soren
A signed, timestamped read from Base mainnet: whether a transaction landed and in which block, an address's ETH and USDC balance, or the current block height and gas price. Use the tx query when you paid over x402, received settlement_pending, and need it resolved — the transaction is in a block with status 1, or it is not. Read through a commercial node, not the public RPC. Verify with soren.com/oracle-key.json
soren.com-$0.01listed
Soren
Every PC game currently free to KEEP (claim once, own permanently) across Steam, Epic Games Store, GOG and itch.io. Each entry verified against that store's own API before publication. Per-store status distinguishes "verified: nothing is free" from "could not check", so a zero is a fact rather than an absence of data. Self-verifying: the version field is a SHA-256 of the payload's own content.
soren.com-$0.02listed
Soren
A heartbeat that costs money, and therefore proves more than a health check: not merely that the server answers, but that x402 verification and settlement are working right now, end to end. Suitable for a monitor that needs to know the PAID path is alive.
soren.com-$0.01listed
Soren
Giveaways already announced but not yet claimable, with the exact date each becomes free and what it normally costs. Forward-looking information no training data can contain. Currently Epic Games Store only — no other storefront publishes a schedule.
soren.com-$0.01listed
Soren
Cross-store pricing for a single game — Steam, Epic, GOG and Microsoft Store side by side — with the lowest price ever observed, the date it was observed, and how far above that low the current price sits. Storefronts publish today's price and no history, so the low exists only for whoever recorded it; ours runs from 2012. Every response resolves the game's family so a base game is never compared against a season pass.
soren.com-$0.01listed
Soren
Live web search for agents: up to 10 results with title, URL and snippet. Use it when your agent needs to find current pages and has a wallet instead of a search API key. Charged ONLY if the search succeeds. Results pair with /v1/web/read, which returns any of them as clean markdown.
soren.com-$0.01listed
Soren
Read an ERC-20 balance with symbol, decimals and a formatted amount — one call, no ABI work, live from Base mainnet, for a fraction of a cent. No API key, no account — a wallet is the only requirement, and you are charged only if the read succeeds. Plain unsigned data; the attested version of chain reads is /v1/oracle/onchain. Answers are read at the moment of the call and stamped with the block they came from where applicable.
soren.com-$0.003listed
Soren
The same as paid-ping, plus how long verification and settlement actually took, measured server-side. For choosing your own client timeouts from evidence rather than guessing. Settlement on Base typically completes in one to three seconds, so a timeout under five seconds produces false failures on a healthy network.
soren.com-$0.01listed
Soren
Read whether a transaction SUCCEEDED — a tx can be in a block and still have failed; status is the truth, live from Base mainnet, for a fraction of a cent. No API key, no account — a wallet is the only requirement, and you are charged only if the read succeeds. Plain unsigned data; the attested version of chain reads is /v1/oracle/onchain. Answers are read at the moment of the call and stamped with the block they came from where applicable.
soren.com-$0.003listed
Soren
Read an ERC-20 total supply with symbol, decimals and a formatted amount, live from Base mainnet, for a fraction of a cent. No API key, no account — a wallet is the only requirement, and you are charged only if the read succeeds. Plain unsigned data; the attested version of chain reads is /v1/oracle/onchain. Answers are read at the moment of the call and stamped with the block they came from where applicable.
soren.com-$0.003listed
Soren
Read whether an address is a contract, and its code size, live from Base mainnet, for a fraction of a cent. No API key, no account — a wallet is the only requirement, and you are charged only if the read succeeds. Plain unsigned data; the attested version of chain reads is /v1/oracle/onchain. Answers are read at the moment of the call and stamped with the block they came from where applicable.
soren.com-$0.002listed
Soren
Read a transaction by hash: from, to, value, block, or found:false, live from Base mainnet, for a fraction of a cent. No API key, no account — a wallet is the only requirement, and you are charged only if the read succeeds. Plain unsigned data; the attested version of chain reads is /v1/oracle/onchain. Answers are read at the moment of the call and stamped with the block they came from where applicable.
soren.com-$0.003listed
Soren
Read current gas price and base fee, live from Base mainnet, for a fraction of a cent. No API key, no account — a wallet is the only requirement, and you are charged only if the read succeeds. Plain unsigned data; the attested version of chain reads is /v1/oracle/onchain. Answers are read at the moment of the call and stamped with the block they came from where applicable.
soren.com-$0.002listed
Soren
Read a block header by number or the latest, live from Base mainnet, for a fraction of a cent. No API key, no account — a wallet is the only requirement, and you are charged only if the read succeeds. Plain unsigned data; the attested version of chain reads is /v1/oracle/onchain. Answers are read at the moment of the call and stamped with the block they came from where applicable.
soren.com-$0.002listed
Soren
Read the next nonce for an address, live from Base mainnet, for a fraction of a cent. No API key, no account — a wallet is the only requirement, and you are charged only if the read succeeds. Plain unsigned data; the attested version of chain reads is /v1/oracle/onchain. Answers are read at the moment of the call and stamped with the block they came from where applicable.
soren.com-$0.002listed
Soren
Read the native ETH balance of any Base address, live from Base mainnet, for a fraction of a cent. No API key, no account — a wallet is the only requirement, and you are charged only if the read succeeds. Plain unsigned data; the attested version of chain reads is /v1/oracle/onchain. Answers are read at the moment of the call and stamped with the block they came from where applicable.
soren.com-$0.002listed
Sort lines of text for $0.001 USDC. Call when you need this bounded result without an API key or subscription. Returns machine-readable JSON via x402 on Base or Solana. Limitation: results cover only
Sort lines of text for $0.001 USDC. Call when you need this bounded result without an API key or subscription. Returns machine-readable JSON via x402 on Base or Solana. Limitation: results cover only the supplied input or one bounded public endpoint at request time; callers must verify before acting.
delx.ai-$0.001listed
Soundex
Encode a word with the classic Soundex algorithm (letter + 3 digits) for phonetic matching of names.
openverbs.com-$0.002listed
Source API
Get the verified Solidity/Vyper source code for a deployed contract by address, sourced from Sourcify. Returns every source file (path + content), the contract name, language, compiler version and compiler settings (optimizer, evmVersion) — the full human-readable source an agent needs to read, audit or feed to an LLM. Supports Ethereum, Base, Arbitrum, Optimism, Polygon. Unverified contracts return `verified:false`. Live reads with cache fallback.
openverbs.com-$0.006listed
Source Product API
Find hard-to-source, discontinued, or obscure products and return ranked purchase-ready matches with evidence.
getparthound.com-$0.25listed
Source Product API
Find hard-to-source, discontinued, or obscure products and return ranked purchase-ready matches with evidence.
splitpack.net-$250,000.00listed
Sourced token and wallet risk
Sourced token and wallet risk. Combines the Base token-report risk tier and flags, available DEX market data, and wallet-audit risk tier, flags, account nonce, and native balance. Returns the underlying indicators separately; it does not generate buy/sell recommendations or calibrated confidence, and does not evaluate holder concentration. The account nonce is not full transaction, token-transfer, or trading history. Use as one input before a Base trade.
workers.dev-$0.01listed
Sources API
Search a topic and get the full content of the best pages, in one call. Search, then read the top results, in one call: ranked results from a real web search, and for each of the top pages its main content as markdown, read through a residential IP with a real browser. A page that could not be…
x-402.online-$0.05listed
Sources API
The news and X/Twitter evidence behind Quotient's prediction-market forecasts: recent articles and market-relevant posts for up to ten markets, in published order, each with a relevance score, reasoning, evidence quote, source tier, and author. Use this to see what is actually moving the odds on geopolitics, elections, macro, and policy markets, to audit a forecast, or to build a news feed filtered to tradable events.
onrender.com-$0.003333listed
South African Crypto Zar Prices (live) API
South African Crypto ZAR prices (live): Live ZAR crypto prices from VALR's public market data: last traded, bid/ask, 24-hour high/low/volume and daily change for BTC, ETH and every other ZAR pair on the exchange. Live from VALR's public market data.
zaref.dev-$0.005listed
South African Sa Id Number Validation API
South African SA ID number validation: Structural validation of a South African identity number with safe decode: Luhn check digit, birth date, gender and citizenship segments (citizen or permanent resident). The structural step in KYC, KYB and customer onboarding or due diligence workflows: derive date of birth, age, gender and citizenship without storing the identity. Stateless, never stored or logged (POPIA-conscious by construction).
verza.dev-$0.01listed
SovereignRisk
Per-country sovereign economic / default-risk score (?country=<name or ISO3>)
lonestaroracle.xyz-$0.05listed
Spa Dom To Md API
Renders JavaScript-heavy SPA pages in real headless Chromium via Cloudflare Browser Rendering, waits for network-idle / selector-ready, strips nav/footer/script chrome, and serializes the fully-rendered DOM into clean, LLM-ready Markdown.
workers.dev-$0.03listed
Space Image API
Returns NASA's daily featured space image or video with an explanatory caption.
dt0ur.online-$0.01listed
Space Objects
Asteroids and comets passing Earth within a lunar-distance limit in the next or last N days: distance, speed, size range.
x402tookit.com-$0.02listed
Space Weather Intelligence
Current space-weather conditions — normalized NOAA SWPC Kp, solar wind, magnetic field, and X-ray flux used for solar-flare monitoring, with observation times and freshness.
x402atlas.com-$0.005listed
Space Weather Intelligence
Space-weather alerts — newest bounded NOAA SWPC geomagnetic and solar-flare messages with deterministic product-code kinds, complete-message digests, and freshness.
x402atlas.com-$0.005listed
Space Weather Intelligence
Space-weather forecast — normalized one-to-three-day NOAA SWPC geomagnetic Kp-index periods labeled observed, estimated, or predicted.
x402atlas.com-$0.005listed
Spaceflight News API Articles (keyless) API
Spaceflight News API articles (keyless). POST {limit?, search?, news_site?, offset?}. Unpaid empty → 402; after settle empty/invalid → 400 charged:false. Soft disclose launch-library-upcoming / news-brief-with-sources.
vercel.app-$0.020185listed
Spacetime Fabric API
Spacetime Fabric — Relativity essay on bent reality for flexible thinking about fixed-seeming constraints.
substratesymposium.com-$0.01listed
Spanish public contract awards
Spanish public contracts awarded to a company, or by a contracting authority, from official PLACSP open data: winners, awarded amounts (VAT excluded), dates and official links. Competitive intelligence for B2B agents.
vextorium.com-$10,000.00listed
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