| Prefix Visibility API Reports the propagation of a prefix as the fraction of RIS observers that see it, separately for IPv4 and IPv6, because the absolute peer count moves with the size of the measurement network and is not comparable across time or between prefixes. The share is graded against stated thresholds, and — this is the part that makes the number mean something — compared against the other prefixes announced by the same origin AS. | halowerk.com | - | $0.004 | listed |
| Preflight Call before publishing a claim that cites EU law. Checks that the cited instrument exists in our pinned corpus, that the cited article exists within it, and whether your quoted text actually appears in that article. Covers the AI Act, GDPR, NIS2, DORA and the Cyber Resilience Act. Returns the official article text with a EUR-Lex link. Citation verification only: it never gives legal advice or classifies systems. | preflight402.com | - | $0.10 | listed |
| Preflight Call before signing or broadcasting a Bitcoin transaction. Decodes a raw transaction hex or a PSBT and returns inputs, outputs, script types, addresses, vsize, fee rate when derivable, and objective signals such as RBF, dust outputs, non-standard sighash flags and unsigned inputs. Parses only the bytes you send: no network access. Describes the transaction; never advises whether to sign it. | preflight402.com | - | $0.10 | listed |
| Preflight Call before signing an Ethereum or Base transaction or calldata. Decodes raw transaction bytes or contract calldata against standard interfaces (ERC-20, ERC-721, ERC-1155, WETH, EIP-2612 Permit and Permit2) in memory. Returns the decoded method signature, typed parameters, value in wei and standard specification links. Mechanical byte decoding only: never simulates state or advises whether to sign. | preflight402.com | - | $0.10 | listed |
| Preflight Call before signing a Bitcoin transaction when you need chain context for its inputs: whether each prevout exists, whether it is already spent, its value in sats and its confirmations. Resolves up to 10 inputs against a public explorer at about one request per second, so a full batch can take over 20 seconds; figures reflect chain state at checked_at. Describes on-chain facts with source links; never advises whether to sign. | preflight402.com | - | $0.10 | listed |
| Preflight Call when you need to know which articles of the EU AI Act mention a given obligation for a given role (provider, deployer, importer, distributor, authorised representative). Returns the matching articles with headings, excerpts and EUR-Lex links from a pinned corpus version. Retrieval over the official text: it does not classify your system or assess compliance. | preflight402.com | - | $0.10 | listed |
| Preflight Call before acting on CVE identifiers produced by a model. Returns whether each CVE record exists and its state (published or rejected), with severity and the official CVE record link. Catches fabricated advisory references. Does not tell you whether to patch. | preflight402.com | - | $0.05 | listed |
| Preflight Call before pinning or installing a specific package version in npm, PyPI or crates.io. Returns whether that exact version exists in the official registry, its publication timestamp, whether it is deprecated or yanked, its published artifact hashes, and whether an expected SRI/hex digest matches. Compares registry metadata only and never returns a safety verdict. | preflight402.com | - | $0.05 | listed |
| Preflight API Signed composite preflight (payability + sanctions + trust) of one subject address | nsgoods.org | - | $0.015 | listed |
| Preflight API One-authority deterministic England taxi-private-hire licensing preflight for a supported authority. Use for applicant, driver, vehicle, or operator blocker checks, missing-input identification, and the next evidence-gated action before submission or onboarding. This tool does not compare authorities. Deterministic England taxi/private-hire licensing decision with official-source evidence and per-rule freshness guards. Pay only when the blocker check or comparison is decision-relevant. Not licensing-authority approval or legal advice. | regevidencehub.com | - | $0.02 | listed |
| Preflight API Returns a go/no-go allowed flag with market_state, cooldown status, and warnings for one symbol — call it before /kronos/decision to skip a costlier decision call during blocked conditions. | forgemesh.io | - | $0.05 | listed |
| Preflight API A Grok-synthesized token due-diligence report using live contract, market, holder, project website, social-profile and promotion evidence. Raw contract evidence and exact transaction simulation remain free. | railway.app | - | $0.20 | listed |
| Preflight API A Grok-synthesized token due-diligence report using live contract, market, holder, project website, social-profile and promotion evidence. Raw contract evidence and exact transaction simulation remain free. | railway.app | - | $0.20 | listed |
| Preflight API Returns a go/no-go allowed flag with market_state, cooldown status, and warnings for one symbol — call it before /kronos/decision to skip a costlier decision call during blocked conditions. | forgemesh.io | - | $0.05 | listed |
| Preflight API Return an advisory ALLOW, DENY, or ESCALATE decision by comparing a bounded action request with authority, constraints, and evidence supplied by the caller. The service does not execute or legally authorize the action, access a wallet, validate identity, or independently observe facts. | quantumshieldlabs.dev | - | $0.005 | listed |
| Preflight Before Paying An X402 Service API Preflight before paying an x402 service: is it working right now, and did it work the past 30 days? One live probe of the exact resource URL you intend to pay (status, latency, x402 validity, the payTo/price the service itself publishes in its 402, manifest presence) plus our own monitoring history of the host (30-day uptime, last check, recent changes such as payTo or price drift). Optionally verifies that the pay_to you intend to pay matches the live 402. Facts only — no scores. | workers.dev | - | $0.01 | listed |
| Preis Auf Tick Größe Runden API Preis auf Tick-Größe runden. Dezimalrechnung, nächster Tick mit halber Schrittweite aufwärts; kein stiller Tickverlust durch Stellenzahl. Alle Zahlen, Kurse und Vorgaben liefert der Aufrufer. Keine eigenen Kursdaten, kein Brokerzugriff, keine Ausführung. Rechenwerkzeug, keine Anlageberatung, keine Empfehlung. | halowerk.com | - | $0.002 | listed |
| Premium API A Premium Global analysis with chart, Fibonacci and pivot levels, global Elliott wave paths and DeFi opportunities, followed by a prefilled wallet-signed Spot Market or Limit order on a supported execution mainnet. | railway.app | - | $0.30 | listed |
| Premium API A Premium Global analysis with chart, Fibonacci and pivot levels, global Elliott wave paths and DeFi opportunities, followed by a prefilled wallet-signed Spot Market or Limit order on a supported execution mainnet. | railway.app | - | $0.30 | listed |
| Premium API A detailed selected-question analysis with counter-case, execution risk and an independent 4H underlying-asset chart with Fibonacci, pivots and Elliott paths. | railway.app | - | $0.30 | listed |
| Premium API A detailed selected-question analysis with counter-case, execution risk and an independent 4H underlying-asset chart with Fibonacci, pivots and Elliott paths. | railway.app | - | $0.30 | listed |
| Premium Composition API Composicion premium de VideoDanza Generativa con descripcion poetica, parametros deterministas y texto curatorial listo para metadata NFT. | vercel.app | - | $0.10 | listed |
| Premium Text To Speech With Elevenlabs API Premium text-to-speech with ElevenLabs — ultra-realistic voices, multilingual support, custom voice IDs | x402engine.app | - | $0.02 | listed |
| Premium access data endpoint gated at $0.05 USDC Premium access data endpoint gated at $0.05 USDC | pages.dev | - | $0.05 | listed |
| PremiumPin PremiumPin closed-catalog property search | premiumpin.com | - | $0.02 | listed |
| PremiumPin PremiumPin validated CSV export | premiumpin.com | - | $0.50 | listed |
| PremiumPin PremiumPin exact parcel lookup | premiumpin.com | - | $0.01 | listed |
| PrepLayer.ai Near-duplicate detection across a batch of documents. Exact Jaccard similarity over word-3-shingle sets decides duplication; a 64-bit SimHash is returned per document as a compact content fingerprint. Up to 200 documents per call. | maximusmediahouse.com | - | $0.01 | listed |
| Prepaid Credit Pass API Prepaid credit pass - pay $1, receive an API key worth $1.33 of calls at list price | workers.dev | - | $1.00 | listed |
| Prepaid Decision Credits API Prepaid decision credits: 100 calls to /api/x402/decision for one settlement, valid 365 days. | oceanalt.com | - | $0.05 | listed |
| Prepaid Key API Buy a prepaid API key loaded with $10 of credit for every paid route on this origin: send it as the x-api-key header instead of paying per call; each call deducts its listed price ($0.10 a call), 100 calls after one payment. Pass key=<existing bk_live key> to top up instead of minting a new one. The plain key is returned once; balance and call count are free at /api/x402/prepaid-key/balance. Solana USDC or Base USDC, no card, no account. | bykaranteli.com | - | $10.00 | listed |
| Preparation API Is someone preparing to attack this org, sector or country? Call before escalation decisions. Returns verdict escalate|watch|none, stage ladder with gaps, Dempster-Shafer belief/conflict, EWMA velocity, evidence IDs. | onrender.com | - | $0.10 | listed |
| Prepare A Veil Cash Private USDC Send On Base API Prepare a Veil Cash private USDC send on Base. The x402 price is HivemindOS's disclosed 1% service fee for the requested send amount, with a $0.25 minimum and $10 maximum. Returns time-limited proving-key access for local @veil-cash/sdk execution. The recipient, Veil key, proof, and final transaction never go to HivemindOS. | workers.dev | - | $0.25 | listed |
| Prepare Erc 8004 Agent Registration API Prepare ERC-8004 agent registration. Prepare an unsigned ERC-8004 agent registration transaction. | brickken.com | - | $5,000.00 | listed |
| Present value Present value of a future sum and/or a level annuity, given a per-period rate and number of periods. Set dueAtBeginning=true for an annuity-due. | openverbs.com | - | $0.004 | listed |
| Press release - Section template Press release - Section template: Section template for Press release. Supplied Markdown or plain text, up to 20,000 characters. Deterministic processing and document templates; no generative prose or fact checking. One of 25 profiles or calculations across 20 shared operations in this sector. 0.01 USDC includes one bounded section template deliverable. | datapackvibe.com | - | $0.01 | listed |
| Pretrade API Pre-trade context bundle for autonomous crypto agents: wallet balances, ERC-20 allowance to a spender, current gas/base fee, realtime price, 24h statistics and best bid/ask spread. Use immediately before swaps, recurring payments or automated execution. This endpoint provides data only and never submits a trade. | railway.app | - | $0.01 | listed |
| Pretty-print JSON Format JSON with indentation (2 or 4 spaces, or tabs) and optionally sorted keys. Returns the formatted text. Use to make machine JSON readable or to normalise it for diffs. | workers.dev | - | $0.01 | listed |
| Preview Employee Search Results With Summary Data API Preview employee search results with summary data. Pass filters in the request body. Returns matching professionals with key fields: id, full_name, headline, location, company, title, and relevance score. Use the 'id' field with the 'Base Employee Collect by ID' endpoint to get full profiles. | orthogonal.com | - | $0.021 | listed |
| Preview Lookalike Companies For Given Domains API Preview lookalike companies for given domains. This endpoint is free on the upstream API. | orthogonal.com | - | $0.005 | listed |
| Price API Real-time USDC-denominated spot price for any EVM token by contract address or common symbol. Pass ?address=0x... (or ?symbol=ETH) and ?chain=base|ethereum|polygon|arbitrum|optimism|avalanche. Returns price, symbol, decimals, chain, and a timestamp. | workers.dev | - | $0.01 | listed |
| Price API Current USD price of one or more cryptocurrencies (ETH price, BTC price, any token by symbol or contract address), source DefiLlama. Parameter: ?coins=ethereum,bitcoin (comma-separated CoinGecko IDs, or 'chain:address' for a specific token, e.g. ethereum:0xdac17f958d2ee523a2206206994597c13d831ec7). | onrender.com | - | $0.005 | listed |
| Price API Current UK weekly average road fuel price (petrol + diesel, pence/litre), sourced live from DESNZ (UK gov) | workers.dev | - | $0.01 | listed |
| Price API Live USD prices and 24h % change for up to 25 crypto tokens per call: by ticker (BTC, ETH, SOL, USDC...), CoinGecko id, or chain:address for any token on Ethereum, Base, Arbitrum, Optimism, Polygon, BSC, Solana and more. | dt0ur.online | - | $0.01 | listed |
| Price API Business Frameworks business-frameworks/growth/decide/price@1.0 — Set the price. Call when an agent operating a business (launch to ~$50M revenue) must decide on growth and wants the rule, the inputs it needs, the action and the check. Returns 220 tokens of original synthesis with public citations and child handles; free layer at /catalogue. | workers.dev | - | $0.05 | listed |
| Price API Get real-time spot price and market data for a cryptocurrency | iamstarchild.com | - | $0.002 | listed |
| Price API Current price, market cap, and 24h change for a single cryptocurrency by symbol or name (CoinGecko). | railway.app | - | $0.001 | listed |
| Price API Live US-dollar prices for up to 25 crypto assets in one call, by ticker (BTC, SOL…), feed id, or chain:address (e.g. base:0x…), with symbol, confidence and timestamp. | manylives.me | - | $0.002 | listed |
| Price API Current USD price, market cap, 24h volume and 24h change for up to 10 cryptocurrencies by ticker symbol (BTC, ETH, SOL, ...) or for any on-chain token by contract address and chain (ethereum, base, bsc, arbitrum, polygon, optimism, avalanche, solana). Data from CoinGecko. | workers.dev | - | $0.001 | listed |
| Price API Crypto spot price as the median of three independent public exchange tickers (Binance, Coinbase, Kraken). Every single quote, the spread and the timestamp are disclosed, so the median can be recomputed by the buyer. Refuses to answer from fewer than two live sources. Query: symbol (BTC, ETH, SOL, ...). $0.001 per call, signed receipt included. | eucompliance.tools | - | $0.001 | listed |