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Call before paying an unfamiliar x402 endpoint, or to pick between providers. $0.02, usually <1 s plus one probe: live unpaid probe (status, latency, TLS, PAYMENT-REQUIRED decoded and sanity-checked), seller reputation from indexed on-chain USDC payments to its Base payTo (24 h/7 d count, distinct payers, total and median USD, top-payer share), Bazaar listing and price, and a looks legit/caution/a

Is this token a trap? Honeypot simulation, taxes, hidden owner powers, whale concentration, liquidity lock and creator rug history, with a clear verdict. EVM chains and Solana.

Year-on-year growth in point-of-sale sales and units for one of ~380 US consumer companies, by ISIN or ticker, for $0.01: the company's latest reported quarter (91 days to its end) against the same weekdays a year earlier, per panel store and against the covered market (all companies with the same series together). From transactions at eight US retailers, not government aggregates or SEC filings.

Is this UK company legit and safe to deal with? One-call due-diligence check from Companies House: profile, directors and their track record at other companies (phoenix-company check), beneficial owners (PSCs), charges, insolvency, overdue filings and risk flags, with a source link for every fact. Accepts a company name or number.

Compress long AI-agent context into a concise summary, facts, or episodic memory while preserving key entities.

Is this token any good? Grade BASED/MID/COOKED/RADIOACTIVE, 0-100 score, one-liner, roast and reasons from live data: honeypot buy/sell simulation and taxes, owner powers (Base) or mint/freeze authority (Solana), liquidity, volume, buys/sells and pool age across all DEX pools. Body {"tokenAddress":"0x..."} or {"chain":"solana","tokenAddress":"<mint>"}. Synchronous.

Prepaid credit of $0.10 for paid API calls without signing each request. On OKF Index it pays for PDF to Markdown conversion at $0.01 per page, DOC and DOCX conversion at $0.01 per file and questions answered with sources from your knowledge base at $0.01 each. The same token pays the paid APIs of our other products.

Prepaid credit of $0.10 for paid API calls without signing each request. On CommsHarbor it pays for business e-mail for your domain from about $1.62 for 30 days (3 mailboxes), priced in Brazilian reais. The same token pays the paid APIs of our other products.

Paint 2 pixels in one plot on 21millionpixels.art, a shared 21,000,000-pixel canvas, for one payment. Reads are free; paid pixels skip the human cooldown.

Validate CSV before import using a fixed JSON column specification. Checks missing/extra columns, required cells, string/integer/decimal/boolean/date types, uniqueness, allowed values and numeric/row-count bounds. Returns pass/fail with row/column error codes. POST JSON with csv and spec.columns; schemas/examples attached. Full contract: /openapi.json. Max 2,000 rows, 50 columns, 256 KiB; first 50

IP geolocation, ASN and reputation lookup: VPN/Tor proxy, hosting and botnet C2 flags with an abuse score, for any IPv4 or IPv6 address.

Inspect one IP address for network ownership, location and abuse signals.

Translation. Translate text to any language. POST /translate {"text":"...","target":"es"}

Monitor recent official Israeli company-registry changes for an exact nine-digit company number. Returns filing and status-change events newest first, with dates, deterministic categories, source URLs, and checked_at. Use for counterparty monitoring, supplier due diligence, onboarding refreshes, corporate-event alerts, and registry change detection. Coverage is approximately one year.

Clinical trial search — find ClinicalTrials.gov studies by free text, condition, intervention, sponsor, recruitment status and phase, and get each study's NCT id, titles, status, phases, conditions, interventions, sponsor, start and completion dates, enrollment and whether results are posted. Use for drug development, medical research and patient-recruitment questions.

KG-NINJA Agent Error Fix Receipt

What token is this? Read a Base token's name, symbol, decimals and total supply in one cheap typed call, with block-level freshness and explicit limitations. Identity is shared across agents for 7 days while total supply is re-read on every call beyond the block window the answer was quoted for. Positive-sum by design: $0.03 cold, $0.02 when the token identity is already shared, $0.01 on a shared

Scientific and academic paper search: research papers and scholarly literature from arXiv, PubMed, OpenAlex, Crossref and Semantic Scholar in one call, deduplicated and retraction-aware. Each hit: DOI, authors, venue, snippet, citation count and citations per year, type, open-access PDF link. Sort by relevance, recency, citations or impact. Keyless. For literature review and citing research.

Which x402 endpoint should I call? Describe the job in plain words; get the 3 best endpoints from different providers, each health-checked live just now, with its current price quote, its inputs and the reasons — ranked over the whole Coinbase Bazaar catalog by fit, real paying demand and health. Uncharged when nothing passes.

Random UUID generator — returns time-ordered UUIDv7 (RFC 9562, sortable, database-key friendly) or fully random UUIDv4, 1 to 100 per call, as lowercase canonical strings. Use for unique IDs, primary keys, request and correlation IDs, idempotency keys.

Polymarket prediction-market listings. Query: ?limit=1-100. Source: Polymarket Gamma API (free).

Mizan full report card: 57,020 x402 endpoints across 3,650 operators, knocked and measured — alive or dead, latency, x402 conformance, and the price actually demanded at the door versus the price advertised in the catalogue (335 demand more; 74 hand over the goods for free). For the 1,729 Mizan paid for: delivered, refused, or charged-and-delivered-nothing, each reconciled against the Base chain.

Free during launch. Independent verification of AI agent output before you pay: an invoice or deliverable against your JSON Schema and rules. Pass/fail, % passed, fix hints, signed attestation and receipt. $0.02 USDC after, no signup, x402 v2.

Due diligence on an ERC-8004 agent before you pay it or call it: live services and their health, metadata completeness, onchain feedback count and score, wallet activity, concrete red flags, and a usable/caution/avoid verdict with a 0-100 score. Call it when you must decide whether another agent is safe to transact with. Params: chain (default 8453) and agent_id (ERC-8004 token id).

What should your agent read next? Send text from your corpus; get the concepts most strongly linked to it that it does not yet cover, each with the linking terms and measured link strength. Text is not stored. Text with fewer than 3 known terms is not charged.

German gross-to-net monthly estimate: Lohnsteuer, Solidaritaetszuschlag, Kirchensteuer, social contributions

Base token risk report with an AI-written plain-English summary. Checks what most scanners miss: whether the creator or launch wallet can pull the pool liquidity (incl. Uniswap V4), copycat tokens reusing a bigger token's ticker, and Clanker/Doppler/B20 launch platforms. Also honeypot and taxes, mint/pause/blacklist powers, upgradeable proxy, ownership and holders. Returns a 0-100 score, LOW/MEDIU

BEFORE YOU PAY an x402 402: ping this resource URL. Returns live or dead (ghost listing, timeout, non-compliant host). One cent. Use when holding Payment-Required, before sending USDC to a payTo. Ghost x402, is this endpoint live, verify before pay. Not full pay-clearance.

State Synthesis - Synthesizes market state from multiple data sources

Stacktree: host generated HTML as a live, shareable web page on a permanent, private, unguessable link ($0.50). POST any HTML (a report, dashboard, landing page, static site, or any webpage an agent produced) with payment; we return the URL and a one-time claim token. No account, no key, no human in the loop. The paying wallet can update the page free at the same URL, and a deleted page is restora