| Language Signal Decision API Language signal decision fetches current public evidence from the supplied target and evaluates the documented criterion. It returns the observation, threshold, verdict, exact evidence source, limitations and a mode-specific action. The check is passive: no login attempt, payload injection, exploit, purchase, form submission or load test is performed. | halowerk.com | - | $0.001 | listed |
| Language Signal Repair API Language signal repair plan fetches current public evidence from the supplied target and evaluates the documented criterion. It returns the observation, threshold, verdict, exact evidence source, limitations and a mode-specific action. The check is passive: no login attempt, payload injection, exploit, purchase, form submission or load test is performed. | halowerk.com | - | $0.001 | listed |
| Large ERC-20 Transfer Feed Read recent large ERC-20 transfers directly from Base, Ethereum, or Arbitrum by scanning Transfer logs over the most recent blocks and filtering by a minimum token amount. Defaults to USDC on Base. Public RPC providers cap the scan window, so this covers the most recent blocks rather than a long history, and it does not label exchange wallets. | run.app | - | $0.005 | listed |
| Largest Context Window Leaderboard API Largest-context-window leaderboard: the 100 AI models with the biggest context windows, ranked descending — how many tokens each model can actually take, its max output tokens, modality support, and what those tokens cost. Compare GPT-5, Claude 5, Gemini 3 Pro, Llama 4 Scout and 2,000+ more on context capacity and price together. Refreshed hourly. | modelprices.xyz | - | $0.01 | listed |
| Las Vegas Grand Prix Bundle API F1 Las Vegas Grand Prix race-weekend trip planner at Las Vegas Strip Circuit, Las Vegas, NV (nearest airport LAS). One call returns the session schedule (practice / qualifying / race) + circuit venue intel (coords, airport, transit tips) + Open-Meteo weather + Duffel flights + Duffel Stays hotels. Travel enrichment activates when a single session is selected. Params: session (practice|qualifying|race|<session id>), origin, passengers, check_in, check_out, guests. | fanfare.run | - | $0.25 | listed |
| Laso Finance Send money to a debit card via push-to-card. Supports USD (U.S.), EUR (Eurozone), and GBP (U.K.). Returns a redemption URL to enter card details. | laso.finance | - | $11.50 | listed |
| Last API Total precipitation in the last 48 hours for the given location(s). | ERROR: Unable to calculate price. | orthogonal.com | - | $0.01 | listed |
| Last API Total precipitation in the last 48 hours for the given location(s). | ERROR: Unable to calculate price. | orthogonal.com | - | $0.01 | listed |
| Last N Blocks (default 10) API Last N blocks (default 10): height, hash, size, txcount, time — flat $0.001 per call, USDC on Base, no signup. | btcnode.uk | - | $0.001 | listed |
| Latest API Verifiable random numbers with cryptographic epoch references. Wesolowski 2048-bit VDF epoch chain with on-chain MerkleAnchor reference. For unbiased randomness: POST /v1/rng/commit (free), then GET the reveal_url returned in the response. Do not construct reveal paths yourself. | fairseal.io | - | $0.005 | listed |
| Latest API Compact Daily Monitoring snapshot for the tracked slice. | run.app | - | $0.03 | listed |
| Latest API Latest Korean brokerage equity research across all covered companies, newest first — company and KRX ticker, target price, rating, brokerage, analyst, and a one-line English summary of each report. Facts and summaries only; the report PDF stays with its publisher and source_url links back to it. Optional ?limit=20 (max 50). | workers.dev | - | $0.02 | listed |
| Latest API Complete latest daily Keelbase Signal records and full synthesis. | keelbase.io | - | $0.03 | listed |
| Latest API Skim: x402 ecosystem feed — new services and price changes across the public x402 registries, as structured items. Refreshed on a 15-minute cycle (stale served if a registry is down); poll as often as you like. | skim402.com | - | $0.005 | listed |
| Latest Base Block API Latest Base block: number, timestamp and hash. The cheapest call on the service — useful as a liveness and connectivity check. | chainverdict.xyz | - | $0.001 | listed |
| Latest Base block for Treasury Latest Base block for Treasury: Return the latest Base block number and timestamp. Focus: treasury. Uses live Coinbase Exchange or Base RPC data. | datapackvibe.com | - | $0.01 | listed |
| Latest Base block number and timestamp. Latest Base block number and timestamp. | workers.dev | - | $0.002 | listed |
| Latest SEC filings for an equity symbol Latest SEC filings for an equity symbol | agentnewsstand.com | - | $0.01 | listed |
| Latest Solana Blockhash And How Long It Stays Valid API Latest Solana blockhash and how long it stays valid — Genesis402 / UnyKorn Operator Network | unykorn.org | - | $0.002 | listed |
| Latest Stellar Ledger API Latest Stellar ledger — height, close time, fees and throughput — Genesis402 / UnyKorn Operator Network | unykorn.org | - | $0.002 | listed |
| Latest US federal regulations Latest US federal regulations | onrender.com | - | $0.005 | listed |
| Latest direction+magnitude scorings for Polymarket events. Each row scores one (headline, market) pair with a direction (up/down/none), confidence (0-1), signed magnitude in points, composite tier (SK Latest direction+magnitude scorings for Polymarket events. Each row scores one (headline, market) pair with a direction (up/down/none), confidence (0-1), signed magnitude in points, composite tier (SKIP/WATCH/TRADE), and current market price. | itsgloria.ai | - | $0.10 | listed |
| Latest equity quote from a free, key-less source (Yahoo Finance): price, day open/high/low, previous close, % change, volume and currency. Input a symbol like AAPL. Delayed, $0.005. Latest equity quote from a free, key-less source (Yahoo Finance): price, day open/high/low, previous close, % change, volume and currency. Input a symbol like AAPL. Delayed, $0.005. | agentbit.app | - | $0.005 | listed |
| Latitude 10 How well AI agents will use your API, from its OpenAPI 3.0/3.1 spec: a 0-100 score over 13 rules (operationIds, summaries, descriptions, parameters, enums, examples, JSON bodies, response and error schemas, pagination, auth, idempotency, tool count), every finding, and a suggested fix per operation. POST {"url": "https://…/openapi.json"} or {"spec": "<JSON or YAML>"}. | latitude10.tech | - | $0.10 | listed |
| Lattice Check API Uses lattice dimension, log2 determinant and an assumed root-Hermite factor to estimate Gaussian-heuristic and reduced-basis vector lengths in log2 units. It does not execute lattice reduction, validate an LWE instance or provide a cryptographic security level. | halowerk.com | - | $0.003 | listed |
| Launch API Who launched this pump.fun token and what happened to their previous ones: launch count, graduation record, and whether the creator bought their own bonding curve | poolproof.ru | - | $0.005 | listed |
| Launch Weather API Checks wind, gust, lightning distance, precipitation, cloud fraction, and temperature against caller-supplied limits and reports every failed rule. It does not retrieve observations, forecast weather, interpret vehicle-specific rules, detect upper-level winds, or authorize a launch. | halowerk.com | - | $0.003 | listed |
| Launches API Live feed of pump.fun launches from the last 24h with creator context: who deployed each one, how many they launched before, whether they bought their own bonding curve. Poll with ?since= for only what is new. This history cannot be reconstructed afterwards | poolproof.ru | - | $0.01 | listed |
| LayerZero 24-hour statistics LayerZero 24-hour statistics: 24-hour statistics for LayerZero (ZRO-USD) from Coinbase Exchange public USD market data. The product ID can be overridden; data only, not investment advice. | datapackvibe.com | - | $0.01 | listed |
| LayerZero Bid-ask spread check LayerZero Bid-ask spread check: Bid-ask spread check for LayerZero (ZRO-USD) from Coinbase Exchange public USD market data. The product ID can be overridden; data only, not investment advice. | datapackvibe.com | - | $0.01 | listed |
| LayerZero Hourly price candles LayerZero Hourly price candles: Hourly price candles for LayerZero (ZRO-USD) from Coinbase Exchange public USD market data. The product ID can be overridden; data only, not investment advice. | datapackvibe.com | - | $0.01 | listed |
| LayerZero Live ticker LayerZero Live ticker: Live ticker for LayerZero (ZRO-USD) from Coinbase Exchange public USD market data. The product ID can be overridden; data only, not investment advice. | datapackvibe.com | - | $0.01 | listed |
| Lead Generation API Paid x402 endpoint for lead generation and sales prospecting workflows. | signalforgestudios.com | - | $0.01 | listed |
| Lead Generation API Paid x402 endpoint for lead generation and sales prospecting workflows. | vextorium.com | - | $0.004 | listed |
| Lead Generation API Paid x402 endpoint for lead generation and sales prospecting workflows. | thirdmade.net | - | $0.001 | listed |
| Lead Generation API Paid x402 endpoint for lead generation and sales prospecting workflows. | limitguard.ai | - | $0.27 | listed |
| Lead Generation API Paid x402 endpoint for lead generation and sales prospecting workflows. | hivemindos.app | - | $0.07 | listed |
| Lead Generation API Paid x402 endpoint for lead generation and sales prospecting workflows. | rallylive.ca | - | $0.01 | listed |
| Lead Generation API Paid x402 endpoint for lead generation and sales prospecting workflows. | clinkagent.com | - | $0.05 | listed |
| Lead Generation API Paid x402 endpoint for lead generation and sales prospecting workflows. | clinkagent.com | - | $0.15 | listed |
| Lead Generation API Paid x402 endpoint for lead generation and sales prospecting workflows. | aiskills402.com | - | $0.03 | listed |
| Lead Generation API Paid x402 endpoint for lead generation and sales prospecting workflows. | clinkagent.com | - | $0.20 | listed |
| Lead Generation API Paid x402 endpoint for lead generation and sales prospecting workflows. | fly.dev | - | $0.05 | listed |
| Leaderboard API Top agents ranked by USDC, with on-chain wallets for verification. | agentworld.me | - | $0.005 | listed |
| Leaderboard API Leaderboard: pay a tiny fee to appear on a ranked scoreboard (?name=, ?url=, ?note=). No underlying data product — pure visibility. Ranked by cumulative amount paid; paying again bumps your rank. | paidapis.net | - | $0.005 | listed |
| Leading Index 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. | agentfeeds.jp | - | $0.002 | listed |
| Leak and infostealer exposure of one e-mail address: infections that saved it (count, first/last seen, corporate vs user services), leak records and sources - aggregates only, never passwords, logins, Leak and infostealer exposure of one e-mail address: infections that saved it (count, first/last seen, corporate vs user services), leak records and sources - aggregates only, never passwords, logins, devices or IPs; the address is echoed only as SHA-256. For addresses you own or are authorised to check | connskill.com | - | $0.05 | listed |
| LeaseEdge Gulf of Mexico lease sale (BBG1) auction results: bids by area/company, filterable | lonestaroracle.xyz | - | $0.15 | listed |
| Least common multiple Least common multiple of two or more positive integers (arbitrary precision). | openverbs.com | - | $0.004 | listed |
| Ledger API $0.035 per delivered ledger receipt row per successful call to get a verified, on-chain proof-of-payment receipt (txHash) from WorxAI's x402 facilitator — useful for agents that need to confirm settlement plumbing works before buying a larger dataset. | worxai.tech | - | $0.035 | listed |