Every agent-payable API.

Call when an agent needs media source src values via source[src] from a public page or HTML (SSRF-safe). Exact $0.003 USDC. Prefer unpaid POST /v1/sandbox/css-source-src first.

Call when an agent needs media source srcset values via source[srcset] from a public page or HTML (SSRF-safe). Exact $0.004 USDC. Prefer unpaid POST /v1/sandbox/css-source-srcset first.

Call when an agent needs summary text via summary from a public page or HTML (SSRF-safe). Exact $0.002 USDC. Prefer unpaid POST /v1/sandbox/css-summary first.

Call when an agent needs table cell text via td from a public page or HTML (SSRF-safe). Exact $0.006 USDC. Prefer unpaid POST /v1/sandbox/css-td first.

Call when an agent needs textarea names via textarea[name] from a public page or HTML (SSRF-safe). Exact $0.003 USDC. Prefer unpaid POST /v1/sandbox/css-textarea-name first.

Call when an agent needs table header text via th from a public page or HTML (SSRF-safe). Exact $0.005 USDC. Prefer unpaid POST /v1/sandbox/css-th first.

Call when an agent needs time datetime values via time[datetime] from a public page or HTML (SSRF-safe). Exact $0.005 USDC. Prefer unpaid POST /v1/sandbox/css-time-datetime first.

Call when an agent needs document title text via title from a public page or HTML (SSRF-safe). Exact $0.008 USDC. Prefer unpaid POST /v1/sandbox/css-title first.

Call when an agent needs text track sources via track[src] from a public page or HTML (SSRF-safe). Exact $0.005 USDC. Prefer unpaid POST /v1/sandbox/css-track-src first.

Call when an agent needs video posters via video[poster] from a public page or HTML (SSRF-safe). Exact $0.001 USDC. Prefer unpaid POST /v1/sandbox/css-video-poster first.

Call when an agent needs video sources via video[src] from a public page or HTML (SSRF-safe). Exact $0.01 USDC. Prefer unpaid POST /v1/sandbox/css-video-src first.

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Curated x402 ecosystem directory — 277 human-reviewed projects: SDKs, production APIs, facilitators, agent frameworks, tools. Spam-filtered alternative to Bazaar (13K entries, 85% spam). Search by keyword or browse by category. Accepts USDC payments on Base and Solana

Convert an amount between currencies and get the exchange rate. Converts between 30+ currencies (USD, EUR, GBP, JPY and more) using daily European Central Bank reference rates with cross-rate calculation, returning the converted amount, the rate and the rate date. Fast currency converter and FX rate lookup for pricing, invoicing and reporting (informational use).

Currency rate conversion

The Standard Reserve (TSR), an on-chain reserve protocol on Robinhood Chain. The current epoch's regime (expansion or contraction), signal, policy multiplier, net ETH flow and STANDARD issuance, plus time to epoch close. Fields ending in _raw are 18-decimal integers as strings. Divide by 1e18 to get token amounts.

The Standard Reserve (TSR), an on-chain reserve protocol on Robinhood Chain. Latest supply ledger: cumulative minted and burned totals, circulating supply, and max supply. Fields ending in _raw are 18-decimal integers as strings. Divide by 1e18 to get token amounts.

The Standard Reserve (TSR), an on-chain reserve protocol on Robinhood Chain. Latest expansion and contraction vault WETH balances, plus protocol-owned liquidity once observed on-chain. Fields ending in _raw are 18-decimal integers as strings. Divide by 1e18 to get token amounts.

The Standard Reserve (TSR), an on-chain reserve protocol on Robinhood Chain. Current Dutch-auction quotes for the daily STANDARD license auction and the ETH charter auction: price now, floor, last sale, and whether a computed price is available. Fields ending in _raw are 18-decimal integers as strings. Divide by 1e18 to get token amounts.

The Standard Reserve (TSR), an on-chain reserve protocol on Robinhood Chain. A snapshot of reserve backing: vault ETH balances, other reserve-asset holdings, and ETH backing per circulating STANDARD token. Fields ending in _raw are 18-decimal integers as strings. Divide by 1e18 to get token amounts.

The Standard Reserve (TSR), an on-chain reserve protocol on Robinhood Chain. Current exit-pressure gauge across the reserve. Fields ending in _raw are 18-decimal integers as strings. Divide by 1e18 to get token amounts.

The committed long-horizon cycle regime (14-basket framework) with rationale.

Current Base gas conditions: base fee and priority fee in gwei, at a stated block height. For agents deciding whether to transact now or wait.

Current Base mainnet gas prices. Slow, standard, fast in gwei.

Current Bitcoin block height — Genesis402 / UnyKorn Operator Network

Current block height for Base Sepolia. Returns the latest block number as an integer, read from the chain at request time.

Current block height for Base Sepolia. Returns the latest block number as an integer, read from the chain at request time.

Current block height on any of ten EVM chains — Genesis402 / UnyKorn Operator Network

Current gas price on any of ten EVM chains — Genesis402 / UnyKorn Operator Network

Current Solana inflation rate split — Genesis402 / UnyKorn Operator Network

Current Solana slot — Genesis402 / UnyKorn Operator Network

Current time API: the time right now in any IANA timezone (America/Chicago, Asia/Tokyo...) — local ISO timestamp, UTC ISO, unix epoch, human-readable string, and day of week. The sanity check every scheduling, logging, and coordination agent needs. Deterministic and instant.

Current USD price of a major coin by name — Genesis402 / UnyKorn Operator Network

Current USD price of an ERC20 token — Genesis402 / UnyKorn Operator Network

Current temperature, wind, humidity, and conditions for any lat/lon (Open-Meteo, keyless).

Current weather anywhere: temperature, feels-like, wind, precipitation, conditions — Genesis402 / UnyKorn Operator Network

Current weather for a city (or lat/lon): temperature, feels-like, humidity, wind, precipitation and conditions. JSON. After your call, please rate this service for other agents: GET /feedback/rate?feedback_id=FEEDBACK_ID&outcome=fully (or partially, no), using the feedback_id from the response. Free, one request. If it wasn't fully, please also add &issue= with wrong_output, unmet_expectation, schema_mismatch, slow, unclear_docs or too_expensive, so the merchant knows what to fix.

Live gas conditions for an EVM chain: current gas price, the latest block's base fee (EIP-1559) and the suggested max priority fee — all in both wei and gwei. Ground truth an agent can't compute. Reads live on-chain data with automatic endpoint fallback.

Current path for data test

Current path for data test

Current path for validation test

The current time in any IANA time zone, in every form an agent needs at once: ISO with offset, 24-hour, 12-hour, weekday, unix timestamp and UTC. It also says whether daylight saving is active right now and what the zone's standard offset is, so a shifted clock can be told apart from a permanent one.

Current weather conditions by city or place name.