Every agent-payable API.

corpusAI Cloud Pricing: Legacy daily and monthly history of every type in a region as one gzip TSV file.

Correct likely spelling errors in an SEO query

Cosmos Hub (ATOM) price in USD now, with 24h and 7d change — Genesis402 / UnyKorn Operator Network

Cost-optimised endpoint selection: name a capability (web search, token safety, enrichment) and get the x402 endpoints that provide it ranked cheapest-first in USDC per call, filtered by real adoption so untested $0.0001 listings do not masquerade as bargains. Refreshed daily from the Bazaar discovery index. `offset`/`limit` page through the full ranked list (up to 100 rows per call); `cheapest` always names the globally cheapest listing, whichever page you asked for.

Deepstate, the on-chain order-book exchange on Robinhood Chain. Gas spent resting and cancelling orders for a market.

Count the number of results matching search filters without returning the actual data.

Count syllables per word and in total across the text.

Choose the singular or plural form for a given count, e.g. (apple, 3) → "apples", (apple, 1) → "apple". By default the count is prepended ("3 apples"); set includeCount=false to omit it.

Who does this wallet transact with? Recent activity (~100 transactions) aggregated into a ranked counterparty list: address, explorer name where known, interactions in/out, total native value, first/last seen, methods used. The related-wallets answer from open data — honest about being a recent-activity sample.

One call, four public sources: how old the domain is (RDAP), whether mail to the contact will land (DNS), whether the name is on the OFAC list, and whether the company exists in the global LEI register. Returns a single GO / HOLD / STOP with every signal that produced it. Built for the moment an agent has to trust an invoice, a new vendor or a payment-detail change — the classic fraud pattern is a real-looking name on a domain registered weeks ago.

Check a known EU VAT ID and/or Peppol participant using separate tax-validity, entity-match, and discoverability evidence. VIES is never used for name search and upstream responses are not resold. / 既知のEU VAT IDまたはPeppol参加者を税番号有効性・法人一致・到達性に分けて確認します。VIESは名称検索に使わず、元データは再販しません。

Counterparty report for any Arc address: how often it is the FIRST buyer into a new pool and how fast it enters (a 2-second median is a machine, not a person), plus what it spent on those entries. IMPORTANT LIMIT: our scanner records only a pool's first buyer and only that pool's first 8 swaps, so later sales are NOT observed — treat the money figures as entry spend and early exits, not a full ledger. Behaviour, not identity; absent from our index means unknown, not safe.

Counterparty reputation lookup for x402 payments: aggregated post-hoc reports (scam, non-delivery, prompt injection, overcharge, impersonation, replay abuse) filed by other agents, with distinct-reporter counts and risk level.

Deterministic counterparty policy decision using supplied reputation evidence and transaction limits

Get list of supported country values for company followers filtering.

Resolve a two-letter country code into its World Bank name, region, capital, income group and lending classification for data enrichment.

Country facts: capital, currencies, languages, population, timezones, calling code — Genesis402 / UnyKorn Operator Network

Country metadata — Name/ISO code → currency, capital, calling code, languages, flag.

Build the flag emoji for an ISO 3166-1 alpha-2 country code from its regional-indicator symbols (e.g. "US" → 🇺🇸). Non two-letter codes are clean 400s.

Country facts by name or ISO code: official name, capital, region, currencies, languages, timezones, dialing code, TLD, and more. Committed open dataset (world-countries, ODbL, plus the IANA timezone country map) - offline and deterministic. ?name=Japan or ?code=JP

County cropland extent: How much of each county is cropped, in percent and in square kilometres, plus the full land-cover breakdown behind it. Up to 100 rows per call, $0.10 USDC. Filters: country, county, class, level, source.

Look up a North Carolina (NC) court case or traffic citation and get its status, hearing dates, charges, party roster and counsel, dispositions, service of process, and bail / failure-to-appear signals. Supply ONE of caseNumber, citation, portalSessionRef or caseHash. Read-only. Informational, not legal advice.

Search the North Carolina (NC) money-judgment and criminal-sentence index by party or case. This is the JUDGMENT index, not the case index: what was ORDERED and what is owed, rather than what was filed. Fast (~1-3s) — the upstream is a plain OData service with no portal session behind it. Read-only, NC only. Informational, not legal advice.

Find North Carolina (NC) court cases and hearing dates for a PERSON by name. Both first and last are required. For a company, LLC, insurer or landlord use search-cases-by-business instead — person search cannot match an organisation and returns nothing rather than a worse answer. SLOW: a live portal query, 15-50s; allow a generous timeout and do not retry. Read-only, NC only.

Find North Carolina (NC) court cases where a COMPANY is a party — an LLC, corporation, insurer, hospital or landlord. This is a separate portal search mode from person search, not a filter on it: a business name put through a person search matches nothing, because that mode has no first/last name to work with. SLOW: a live portal query. Read-only, NC only.

Propagate declared correlated measurement uncertainty for 1-8 sensitivities using c-transpose C c. Requires exact symmetric positive-semidefinite covariance; returns exact variance and a rational square-root enclosure. First-order only; no empirical covariance validation.

Observe an MPL Core asset, its 014 Registry binding, and DAS-reported AppData. This does not prove identity or claim truth.

Assess whether a public GitHub repository qualifies for Mizuki automated maintenance and report the validation command Mizuki would run. This observes repository manifests; it is not a quote and reserves nothing.

Check a US insurance carrier before accepting a certificate of insurance. Given an NAIC number or carrier name plus a state, returns recognition status, financial-strength rating, and whether it meets a minimum threshold. Use when validating vendor or subcontractor insurance at onboarding, renewal, or compliance review. Carrier data is a curated seed dataset; each response reports its status. Responses are Ed25519-signed and independently verifiable. Pay per call in USDC, no account needed.

Crafting cost calculator: Calculate total crafting cost from quantities and per-unit costs.

Crafting recipe generator: Create a recipe with ingredients, output, work step, and failure consequence.

Crash-test results for US-market vehicles: government 5-star program scores covering frontal and side impacts, side pole, and rollover, plus safety-feature flags like electronic stability control and forward-collision warning. Query by VIN or year/make/model; unrated vehicles return a clear not-found answer.

Crawl one site in one paid call: start URL + max_pages (2-20); we follow same-host links breadth-first, returning each page as clean markdown (same extraction as /web/contents). Priced at $0.001 per requested page, quoted as max_pages up front — finding fewer pages is still a complete delivery. Failed pages are skipped and listed in skipped[]; the call still settles. Only an unreadable start page is a 400, no charge. USDC on Base, no account, no API key.

Turn a URL into LLM-ready Markdown with crawl4ai's /md contract: f raw|fit (raw or pruned fit_markdown), q optional user query, c cache flag. Answers {url, filter, query, cache, markdown, success}.

Create a fast watch: Stumble polls a public URL every 60 seconds for up to 7 days and notifies your webhook (or lets you poll for free) the moment a condition becomes true (keyword, selector, JSON path, price, content change, HTTP status). One-time $0.50, no account needed. Ideal for restocks and appointment slots.

Create a sniper watch: Stumble polls a public URL every 10 seconds for up to 48 hours and notifies your webhook within seconds of a condition becoming true (keyword, selector, JSON path, price, content change, HTTP status). One-time $2.00, no account needed. Ideal for drops and on-sale moments where seconds matter.

Create a watch: Stumble polls a public URL every 15 minutes for up to 14 days and notifies your webhook (or lets you poll for free) the moment a condition becomes true (keyword, CSS selector, JSON path, price threshold, content change, HTTP status). One-time $0.10, no account needed. Ideal for price drops and slow-moving pages.

Locks buyer funds in a programmatic micro-escrow awaiting provider execution and cryptographic schema verification before release.

Builds an unsigned transaction to launch a new token on the DexL launchpad (you sign it with your own wallet)

Build an x402 paid endpoint that passes the validator, gets indexed and takes real USDC. End-to-end recipe for turning any HTTP capability into an x402 endpoint that an unknown agent can find, pay for and consume: the payment gate, the verifier rules, per-route pricing, the concurrency traps, the nginx wiring, the discovery surface, plus the money-path bugs we only found when real USDC moved. Comes with the exact commands we run.

Build a valid .ics document from event fields (summary, start/end, location, …).

Check your credit balance. Credits are the unit of account for the tollbooth, escrow, and bounty markets here: 1 credit = $0.001, funded by calling /credits/buy ($0.010 per settled call, +10 credits). Balance is keyed to your paying wallet.

Reports the credit-to-GDP gap for a country, which is the deviation of the credit ratio from its long-run trend and the quantity the Basel framework uses to trigger the countercyclical capital buffer. The thresholds applied are the regulatory ones — the buffer starts to build at a gap of two percentage points and is at maximum by ten — and they are returned with the result, because a phase judgement built on invented cut-offs is an opinion while one built on the supervisory thresholds can be…

Geography and cities data credit pack for low-cost location and city lookup workflows used by autonomous agents.

CRISPR guide shortlist: sequence-clean guides that still hit off-target

Compares one guide with caller-supplied candidate protospacers, weights mismatches in the guide’s final ten positions twice, applies a simple NGG PAM penalty, and ranks a transparent similarity score. It does not search a genome, model bulges, chromatin or nuclease-specific biology, and must not be used as a clinical or laboratory safety decision.

Call when an agent needs text decoded with crockford. No network and no LLM. Exact $0.004 USDC. Prefer unpaid POST /v1/sandbox/crockford-decode first.

Call when an agent needs text encoded with crockford. No network and no LLM. Exact $0.003 USDC. Prefer unpaid POST /v1/sandbox/crockford-encode first.

Call when an agent needs a cron expression explained in English. No network. Exact $0.002 USDC. Prefer unpaid POST /v1/sandbox/cron-describe first.

Translates a cron expression into a human-readable description and computes its next scheduled run times.