Every agent-payable API.

Cabinet Office Composite Index (CI), one of leading/coincident/lagging, 2020=100, monthly since 1980. Same e-Stat API family as estat.search/estat.table_data (routed there rather than the Cabinet Office's own ESRI subdomain, whose commercial-use terms were less clearly stated). Factual published data only; not investment advice or a forecast.

Leap year check. Use for date validation and calendar math without external data. Returns a boolean leap-year result for a Gregorian year. $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.

BLM lease auctions, expiring leases, active lease portfolio analysis — oil/gas, geothermal, grazing rights. $0.15/report via x402 on Base.

Least common multiple. Use for cadence alignment, tile sizes, or schedule math in agent workflows. Returns LCM of two integers. $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.

Ledger read: /ledger/reports/trial-balance

Left-pad a string to a target width. Call when you need fixed-width IDs or zero-padded codes. 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.

Ask a real legal-research question, answered live and grounded in real, named legislation/case law/regulator guidance. Informational reference material only, not legal advice -- see the disclaimer on every response.

Legal research with onchain provenance — CourtListener case law, Cornell LII statutes, constitutional rights by jurisdiction, Federal Register. Every result SHA-256 hashed, Merkle-batched, HCS consensus-anchored (topic 0.0.10793271), DocuSign-style per-page seals. [OPEN HOUSE WEEK: $0.001 through Aug 9 00:00 UTC]

Validate a Legal Entity Identifier against ISO 17442: 20 characters, allowed character set and mod-97 check digits. Structural only — no GLEIF registry lookup, so it does not confirm the LEI is issued or active.

LEI lookup (Legal Entity Identifier) from the official GLEIF register. Look up by LEI code or search by legal name (optional jurisdiction filter). Returns the official legal name, entity status, registration status (ISSUED/LAPSED), jurisdiction, legal form and registered address, with a direct GLEIF source link per record. Legal entities only. Ideal cheap first check before deeper company screening.

Look up a Legal Entity Identifier in the global GLEIF register: local ISO 17442 checksum prefilter, authoritative GLEIF check with retry and cache, durable audit receipt.

Legal Entity Identifier (LEI) lookup from the GLEIF golden copy. Search by company NAME, not just by identifier - knowing the LEI already is the hard part. Returns the LEI, registered legal name, previous names, legal form, jurisdiction, legal and headquarters addresses, and the registration record. Status comes back as a lapsed flag: LAPSED, RETIRED and ANNULLED entities are returned rather than hidden, because a filtered record and no record look identical. For KYC and compliance agents.

LEI lookup — Legal Entity Identifier record by LEI code or entity name.

Lemmy (fediverse link aggregator) posts from an instance or a single community, with score and comment counts

Get list of supported seniority level values for company followers filtering.

Levenshtein edit distance and similarity 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.

LGTM.lol premium image — a curated LGTM ("Looks Good To Me") image for approving a code review or pull request, chosen by id — list them at https://lgtm.lol/x402/items. Paid per request in USDC on Base. Returns a short-lived URL to a PNG, JPEG, GIF or WebP; the URL expires in minutes and cannot be shared.

Lightweight English pluralization helper. Call when you label counts in agent messages without i18n frameworks. Returns pluralized word with 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.

Lightweight search returning only business IDs.

Linear algebra API: determinant, inverse, transpose, eigenvalues, multiply, or add matrices up to 50x50 with structured array inputs — exact computation, instant. The linear algebra LLMs can't do reliably in-context. For engineering, graphics, and scientific agents.

Linear interpolation between a and b by t. Call when you blend scores, progress, or animation parameters. Returns interpolated value 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.

Link Header Parse: Link Header Parse parses bounded Link header targets and relation parameters from bounded caller-supplied values without an external provider. Call Link Header 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 Link Header Parse as versioned deterministic JSON. Price: $0.001 USDC via x402 on Base. First-party, stateless, memory-only executi…

LinkedIn Profile Scraper — full people-profile lookup by URL or handle: headline, current role/company, location, follower/connection counts, PLUS a deliverability-checked work email (the contact wedge a bare profile-detail scraper skips). Real-time, no login cookies. SEO: LinkedIn profile API, linkedin email finder, linkedin scraper, B2B contact lookup, sales intelligence.

URL -> deduplicated links, internal/external with anchor text. Input: {url}

Extract all links from a page split into internal and external, each with anchor text and rel attribute, plus per-group counts.

[3-LEG] Liquid restaking chain, one LRT (?entity=renzo-ezeth): leading NAV deviation measured against ETH, NOT against one dollar -> current current protocol state -> realized lifecycle to impairment, slashing or wind-down (confirmation gate). A sequential chain, not one reading - confidence = how many legs are lit, in order. Sources: onchain and protocol disclosures. Descriptive only, never a forecast or advice. No data -> 422 no_charge, not billed.

Liquidation-opportunity scanner: at-risk Morpho Blue borrower positions (health factor < 1) that can be liquidated for a bonus, with borrower, market, debt and collateral in USD. Send { chain?, minDebtUsd?, limit? }. Live liquidatable positions for searcher/liquidator agents.

Liquidation price for a leveraged long or short (isolated margin), plus the % move to liquidation.

Full liquidation report — all assets, long/short breakdown, hot zones

DEX liquidity, market depth and TVL by venue for a trading pair on Avalanche C-Chain - how deep is this pool, and where is the liquidity. Per-venue liquidity in USD across Trader Joe, Pangolin and Uniswap v3, both pool reserves, each venue share of total depth, and the deepest venue to trade against. Live onchain pool state for WAVAX, WETH, WBTC, USDC, USDT, including stablecoin liquidity. For slippage estimation and order routing agents on Avalanche / AVAX C-Chain.

DEX liquidity, market depth and TVL by venue for a trading pair - how deep is this pool, and where is the liquidity. Per-venue liquidity in USD, both pool reserves, each venue share of total depth, and the deepest venue to trade against. Live onchain pool state at call time, including stablecoin liquidity. For slippage estimation, order routing, market-making and liquidity analytics agents. BSC / BNB Chain: PancakeSwap v2, PancakeSwap v3 fee tiers, Biswap, ApeSwap.

DEX liquidity, market depth and TVL by venue for a trading pair on Arbitrum One - how deep is this pool, and where is the liquidity. Per-venue liquidity in USD across SushiSwap and Uniswap v3 fee tiers, both pool reserves, each venue share of total depth, and the deepest venue to trade against. Live onchain pool state for WETH, ARB, WBTC, USDC, USDT, LINK, including stablecoin liquidity. For slippage estimation and order routing agents on Arbitrum / ARB L2.

DEX liquidity, market depth and TVL by venue for a trading pair on Polygon PoS - how deep is this pool, and where is the liquidity. Per-venue liquidity in USD across QuickSwap, SushiSwap and Uniswap v3, both pool reserves, each venue share of total depth, and the deepest venue to trade against. Live onchain pool state for WMATIC, WETH, WBTC, USDC, USDT, DAI, LINK, including stablecoin liquidity. For slippage estimation and order routing agents on Polygon / MATIC / POL.

DEX liquidity, market depth and TVL by venue for a trading pair on Base - how deep is this pool, and where is the liquidity. Per-venue liquidity in USD across BaseSwap, SushiSwap and Uniswap v3, both pool reserves, each venue share of total depth, and the deepest venue to trade against. Live onchain pool state for WETH, cbBTC, USDC, DAI, including stablecoin liquidity. For slippage estimation and order routing agents on Base L2 / Coinbase L2.

A liquidity-risk profile of a perpetual market, walked from the visible book: absorbable notional at four slippage tolerances on both sides, spread, book imbalance, top-of-book concentration, open interest and day volume — with the visible book's limits stated on every response rather than implied.

US market-liquidity & financial-conditions macro signal (no params)

List all tracked technologies Pagination billing: call the first page normally and save billing.requestId from the Orthogonal /v1/run response. For later page, offset, or cursor calls on the same logical search, pass parentRequestId with unchanged non-pagination parameters. Valid continuation calls still get their own request IDs and quoted price, but are charged 0. Changing filters starts a new billable request.

List your AI-generated code for other agents to buy: upload an artifact and list it for a flat fee — no account needed; your wallet is your seller identity.

List company followers jobs with optional filtering.

List enrichment jobs with optional filtering.

List object keys. Call when you introspect agent-held JSON objects. Returns keys 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.

List object values. Call when you extract value bags from agent JSON. Returns values 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.

List observed US federal holidays for a year for $0.002 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.

List top-level JSON keys. Call when agents must discover object shape without full schema inference. Returns top-level keys of a JSON object. $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.

List top-level keys from JSON-LD or JSON objects the caller already holds — call when listing keys from JSON-LD the caller already holds. Use on text/URLs the agent already holds—adjacent to high-volume extract demand, never advertised as general web or X search. Returns deterministic machine-readable JSON for $0.003 USDC via x402 on Base. Execution is first-party, local-only, stateless, and memory-only with no paid upstream, no input retention, and no claim of live chain tip, web search, or me…

List your AI-generated code for other agents to buy: upload an artifact and list it for a flat fee — no account needed; your wallet is your seller identity.

Lite FIFO-style realized PnL from sequential buy/sell fills. Call when attributing closed PnL from a short fill tape without a full OMS. Returns realized pnl summary from fills 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.

Lite Sharpe = mean/stdev of a return sample (no rf, sample). Call when quick risk-adjusted rank of strategy return arrays. Returns sharpe-like ratio and n 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.

Lite Sortino using downside stdev of negative returns. Call when penalizing downside volatility without a full analytics stack. Returns sortino-like ratio and n 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.

LITE version of kyb: compliance verdict + VAT VIES validity + insolvency + red-flag count. Upgrade to /v1/fr/kyb for full dossier (officers, financials, flags detail). Query: ?q= or ?siren=