Every agent-payable API.

Return length of a JSON array or separator-split string list — first-party local utility for agent preflight and proven micro-utils expansion. Returns deterministic machine-readable JSON for $0.001 USDC via x402 on Base. Execution is first-party, local-only, stateless, and memory-only with no paid upstream, no input retention, no web search, no live RPC, and no mediagen. Results are advisory; the caller owns authorization, budgets, and production controls. Sibling of Delx routes that already co…

Return object keys sorted lexicographically for stable hashes — first-party local utility for agent preflight and proven micro-utils expansion. Returns deterministic machine-readable JSON for $0.001 USDC via x402 on Base. Execution is first-party, local-only, stateless, and memory-only with no paid upstream, no input retention, no web search, no live RPC, and no mediagen. Results are advisory; the caller owns authorization, budgets, and production controls. Sibling of Delx routes that already c…

Return on margin for a realized or mark PnL. Call when comparing leveraged trades by capital efficiency. Returns roi on posted margin as deterministic JSON for $0.001 USDC via x402 on Base. First-party local math only—no RPC, live market feed, API keys, storage, or mediagen. Advisory only; the caller owns capital, risk, and production controls.

Return the element at index. Call when you pick a specific agent-held array slot with bounds check. Returns value, index, ok for $0.001 USDC via x402 on Base. No network, no keys, no retention; first-party local JSON only. Results are advisory; the caller owns budgets, auth, and production controls.

Return the first list element. Call when you need head of an agent-held array safely. Returns value and empty flag for $0.001 USDC via x402 on Base. No network, no keys, no retention; first-party local JSON only. Results are advisory; the caller owns budgets, auth, and production controls.

Return the last list element. Call when you need tail of an agent-held array safely. Returns value and empty flag for $0.001 USDC via x402 on Base. No network, no keys, no retention; first-party local JSON only. Results are advisory; the caller owns budgets, auth, and production controls.

Returns a per-service bounce funnel: total probes, bounces, paid count, conversion rate, traffic-class split, and top abandoned endpoints. Shows why agents probe but don't pay. Free for publishers via x-publisher-key.

Returns demand depth for one category: probe volume, distinct sources, buyer-class share, probed price points, and a daily time series. Use it to validate pricing before launching in that category.

Returns random text string for testing

Returns random text string for testing

Revalue amount by two rates (historical vs current). Call when ECB-style revaluation when rates are caller-supplied. Returns revalued_amount as deterministic JSON for $0.002 USDC via x402 on Base. First-party local math only—no RPC, live market feed, API keys, storage, or mediagen. Advisory only; the caller owns capital, risk, and production controls.

Revalue an amount between years using U.S. BLS CPI for $0.002 USDC—informational only. 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.

Get available revenue range values for search filtering.

Reverse-DNS lookup for an IP: PTR record plus a best-effort list of other domains hosted on the same IP.

Look up a professional email address to get the associated LinkedIn profile and person details. Returns results synchronously with status FOUND or NOT_FOUND.

Look up multiple professional email addresses in bulk (up to 50 per call) to get associated LinkedIn profiles.

Reverse geocoding API - convert latitude and longitude coordinates to a street address and place name. Worldwide coverage via OpenStreetMap Nominatim. Returns the display name and structured address (road, city, state, postcode, country) at that point, plus place type and category. Coordinates in the ocean or unmapped return 404, never a fabricated address. For mapping, logistics, delivery tracking, geofencing and location-aware AI agents.

Reverse a list. Call when you need reverse chronological agent logs. Returns reversed items and count for $0.001 USDC via x402 on Base. No network, no keys, no retention; first-party local JSON only. Results are advisory; the caller owns budgets, auth, and production controls.

Reverse a string for $0.001 USDC. Use this when an agent needs reverse string inside a workflow without installing a library or managing an API key. Deterministic first-party execution, structured JSON output, no subscription, and payment only for a successful result.

Reverse a text string for deterministic transform tests — first-party local utility for agent preflight and proven micro-utils expansion. Returns deterministic machine-readable JSON for $0.001 USDC via x402 on Base. Execution is first-party, local-only, stateless, and memory-only with no paid upstream, no input retention, no web search, no live RPC, and no mediagen. Results are advisory; the caller owns authorization, budgets, and production controls. Sibling of Delx routes that already convert…

Reverse geocoding — Coordinates → nearest address.

Use when an agent needs a deterministic, no-LLM rewrite while preserving protected facts such as numbers, URLs, emails, and quotes. Returns change metrics and preservation checks; does not verify authorship or watermark status. Trial, subscription, or x402 pay-per-call.

Right-pad a string to a target width. Call when you need fixed-width columns for agent logs. Returns padded text and width for $0.001 USDC via x402 on Base. No network, no keys, no retention; first-party local JSON only. Results are advisory; the caller owns budgets, auth, and production controls.

Thin liquidity warning for a Base trading pair before you trade it. Classifies market depth DEEP, MODERATE, SHALLOW or VERY_THIN from live pool TVL across BaseSwap, SushiSwap and Uniswap v3, counts how many venues can actually route the trade, measures concentration in the largest venue, and flags single-venue markets and wide spreads. Pre-trade depth check. Depth analysis only - not a contract audit or honeypot check.

Thin liquidity warning for a Arbitrum One trading pair before you trade it. Classifies market depth DEEP, MODERATE, SHALLOW or VERY_THIN from live pool TVL across SushiSwap and Uniswap v3 fee tiers, counts how many venues can actually route the trade, measures concentration in the largest venue, and flags single-venue markets and wide spreads. Pre-trade depth check. Depth analysis only - not a contract audit or honeypot check.

Thin liquidity warning for a trading pair before you trade it. Classifies market depth DEEP, MODERATE, SHALLOW or VERY_THIN from live pool TVL, counts how many venues can actually route the trade, measures how concentrated liquidity is in the largest venue, and flags single-venue markets and wide cross-venue spreads. Pre-trade depth check on BSC / BNB Chain. Liquidity depth analysis only - not a contract audit or honeypot check.

Thin liquidity warning for a Polygon PoS trading pair before you trade it. Classifies market depth DEEP, MODERATE, SHALLOW or VERY_THIN from live pool TVL across QuickSwap, SushiSwap and Uniswap v3, counts how many venues can actually route the trade, measures concentration in the largest venue, and flags single-venue markets and wide spreads. Pre-trade depth check. Depth analysis only - not a contract audit or honeypot check.

Thin liquidity warning for a OP Mainnet trading pair before you trade it. Classifies market depth DEEP, MODERATE, SHALLOW or VERY_THIN from live pool TVL across SushiSwap and Uniswap v3 fee tiers, counts how many venues can actually route the trade, measures concentration in the largest venue, and flags single-venue markets and wide spreads. Pre-trade depth check. Depth analysis only - not a contract audit or honeypot check.

Returns current market risk state, per-symbol signal streaks, and active cooldown timers — use it as a pre-trade risk gate before acting on any signal.

Risk-driven spending policy for x402 payments. POST {target:{payto_address}, payment_context?:{amount,asset}, policy?:{max_payment_usdc,review_ceiling_usdc,min_confidence}} → an allow/limit/deny decision plus an enforceable spending policy an agent can apply to its (e.g. Circle Agent) wallet: per-counterparty max_payment_usdc, daily_cap_usdc, add_to_denylist, require_human_approval. Scored from on-chain settlement behaviour on Base + the delivery-outcome flywheel.

Risk–reward ratio = reward / risk for stop/target geometry. Call when validating setups before size allocation. Returns risk_reward ratio as deterministic JSON for $0.001 USDC via x402 on Base. First-party local math only—no RPC, live market feed, API keys, storage, or mediagen. Advisory only; the caller owns capital, risk, and production controls.

Required Minimum Distribution from a traditional IRA/401(k) using the IRS Uniform Lifetime Table — the amount you must withdraw at your age, given the prior year-end balance. RMDs begin at 73 (SECURE 2.0).

CLEAR / CAUTION / SEVERE verdict for any US freight corridor: live NWS alerts sampled along the route + WZDx work zones within 30 km (closures first) from keyless state DOT feeds. Honest per-state coverage disclosure. Origin/destination as lat,lon or place names. Fail-closed, auto-refund.

Playful AI-powered roast of your prompt with improvement tips.

Token-level feature row for one Robinhood Chain token: launch facts, current activity/deployer/price/caller state, and the observed mention record — inputs for your own model (no score, no recommendation)

Token social tape: mentions with measured-caller grades, velocity, first call

Wallet-entity appearances across the accumulated holder-snapshot archive

Measured call log (most recent 100) behind the free report card

Holders with a measured chain-wide extraction/deployer history — the cross-reference only RobinX indexes

Proven X caller-lift leaderboard

Robinhood Chain gas: current gas price, plus a gas estimate + ETH cost if you send { to, data?, from? }.

Robinhood Chain latest block: number, timestamp, tx count, gas used, base fee. The chain tip for RH Chain (chainId 4663) - the first paid RPC suite for this chain. Send {}.

Registry of tokenized stock and ETF contracts on Robinhood Chain (chain id 4663): 25 verified token addresses with their on-chain price-feed addresses, chain metadata (RPC, explorer, gas token), and source citations for every entry. Read-only public blockchain data — informational only, no trading or brokerage functions.

Robots Directive Merge: Robots Directive Merge merges generic and named-agent robots directives with specific precedence from bounded caller-supplied values without an external provider. Call Robots Directive Merge before accepting, caching, redirecting, or retrying a caller-supplied web response. Returns normalized web evidence, the computed finding, and an explicit pass or advisory status for Robots Directive Merge as versioned deterministic JSON. Price: $0.001 USDC via x402 on Base. First-pa…

Robots Meta Parse: Robots Meta Parse parses robots meta directives into normalized index and follow decisions from bounded caller-supplied values without an external provider. Call Robots Meta Parse before accepting, caching, redirecting, or retrying a caller-supplied web response. Returns normalized web evidence, the computed finding, and an explicit pass or advisory status for Robots Meta Parse as versioned deterministic JSON. Price: $0.001 USDC via x402 on Base. First-party, stateless, memor…

Fetches a domain's robots.txt and parses its Content-Signal and AI-preference directives (search, ai-input, ai-train) into structured JSON plus a plain-English summary of what's allowed — the "can this domain be crawled by an AI agent" check. Run before scraping content or building a RAG index, ahead of the industry's move toward stricter bot-gating defaults later this year.

robots.txt / llms.txt — Fetch and parse a site's robots.txt and llms.txt.

Convert integers (1-3999) to Roman numerals and Roman numerals back to integers, with strict validation.

Roman numerals → integer. Handy for parsing outlines, clocks, or classic numbering in scraped text. Returns the integer value of a Roman numeral string. $0.001 USDC per successful call via x402 on Base—deterministic first-party JSON, no API key, no subscription, and nothing is billed on structured validation errors.

Copy-trade v2 active monitored wallets with score and PnL