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api.onesource.io
The Standard Reserve (TSR), an on-chain reserve protocol on Robinhood Chain. Charters, optionally filtered by owner. Fields ending in _raw are 18-decimal integers as strings. Divide by 1e18 to get token amounts.
$0.005000 USDC
api.onesource.io
Pending block - transactions not yet mined, via eth_getBlockByNumber("pending")
$0.01 USDC
tick.hugen.tokyo
Get real-time Best Bid/Ask for ALL available FX pairs in a single call. Multi-source aggregated from multiple institutional LPs with 62-88% spread improvement. Returns 14 FX pairs including majors, crosses, and XAUUSD gold. Each pair includes quality metadata and spread improvement vs single source. AI agent API for portfolio dashboards, multi-pair monitoring, and FX market overview. Accepts USDC payments on Base and Solana
$0.005000 USDC
api.kadec0.xyz
Market fear & greed index. Aggregated investor sentiment from CNN Fear & Greed, the crypto Fear & Greed index, and the VIX volatility gauge.
$0.05 USDC
agent.pocket.network
Search Federal Register rulemaking: new and changed rules, comment windows, and docket links. POST /v1/federal with a {query} and get matching documents as one JSON object. Deterministic per document. Pay per request in USDC; no account, no API key.
$0.005000 USDC
energy.halowerk.com
Trading and dispatch agents buy this endpoint to obtain the current German EPEX spot price for immediate decisions.
$0.001000 USDC
scvd.store
A Small Blessing. One blessing slip from a 87-slip jar filled in 2 seasons so far, never the same slip twice in a row, delivered instantly with purchased_text: an ed25519 envelope binding the exact words and purchase certificate. Full listing: https://scvd.store/menu/small_blessing. MCP tool: buy_small_blessing.
$0.005000 USDC
x402check.arden-instance.workers.dev
Read-only Base mainnet data: GET /base/block, /base/tx?hash=, /base/balance?address=, /base/erc20?token=&holder=, /base/gas. Small JSON payloads over a Base node; pay ~$0.002 USDC on Base per call.
$0.002000 USDC
api.onesource.io
The Standard Reserve (TSR), an on-chain reserve protocol on Robinhood Chain. How the reserve's exit fee changes across a range of withdrawal sizes, checked two ways: a live contract read and this service's own formula. Fields ending in _raw are 18-decimal integers as strings. Divide by 1e18 to get token amounts.
$0.02 USDC
api.hyperextend.xyz
The most-recent N HIP-4 outcome-side rows (≤5000). Priced per row ($0.000025 premium); served live.
$0.003475 USDC
straits.live
AI-assisted Strait of Hormuz daily situation brief as structured JSON: prose summary, bullets, and key figures, by date or latest, with archive access by date.
$0.01 USDC
poketpoker.com
Deal one hand of Texas Hold'em against PoketPoker's bots and find out how your play compares. Five difficulty tiers; the top tier plays range-aware expected-value poker and beats every tier below it. Returns the table and a ticket; playing the hand out costs nothing more. Markdown by default, JSON with format=json.
$0.005000 USDC
anywaypossible.com
Live Base wallet balance for AI agents. Returns native ETH and Circle USDC balances, atomic values, block height, contract address, and observation time for any EVM address. Includes a machine-readable upgrade path to treasury readiness for spend, gas-reserve, and wallet-health decisions. No API key.
$0.001000 USDC
app.ravn.exchange
RAVN — best-price swap quotes across 20 execution venues and 18 chains, including native (non-wrapped) Bitcoin as either source or destination. 0% protocol fee, non-custodial. Returns a quoteToken; pass it to POST /execute.
$0.001000 USDC
open-pay.jp
Japan Stablecoin Payment Monitor: weekly change feed for stablecoin payment services in Japan — new launches, pilots, partnerships, fee changes, supported assets and chains, and closures. Each event is dated, categorized and tied to an official source URL. Pass changedSince=YYYY-MM-DD (your last run date) to fetch only new events; an empty changes list explicitly means no change. Without changedSince you get the full dated history back to late 2025.
$0.01 USDC
tick.hugen.tokyo
List all available FX symbols with their current quality state and source count. AI agent API for discovering available instruments before subscribing to tick data. Accepts USDC payments on Base and Solana
$0.005000 USDC
api.nansen.ai
Get Address Transactions Data
$0.01 USDC
agents.dyoeway.org
Check whether a website, business, or wallet is a scam before an agent trusts or pays it — fraud, phishing and rug-risk screening. Returns verdict (safe/caution/avoid), trust_score, domain age, red_flags. Input: ?target=domain
$0.01 USDC
x402.fenixfoundry.com
Repair malformed JSON (trailing commas, single quotes, unquoted keys, code fences, truncated output) and optionally validate the result against a supplied JSON Schema. Returns the parsed value, the canonical text, a change log and validation errors.
$0.003000 USDC
cultos.dev
Encoding Toolbox
$0.001000 USDC
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