Every agent-payable API.

One synchronous observation, not a recurring subscription. The caller schedules later checks and supplies its previous numeric offer price. Reuses Fetchwerk product extraction from actual HTML and returns raw price evidence. No conversion, no inferred price, no shipping-total guarantee and no JavaScript-only shop support. Source and callback require public IPv4 HTTPS on port443; every connection is DNS-checked and pinned, redirects rechecked (callbacks never redirect).

When to use: you already have an IV surface (k,T,σ) and need to price options on it — not invert premiums and not scalar σ. Interpolates total variance w=σ²T bilinear in log-moneyness k=ln(K/F); wingRule=flat_vol. Returns price, interpolated σ, k, F, BS Greeks. USDC exact on Solana/Base. Prefer /v1/option/price when σ is a single scalar.

Token price history in USD by CoinGecko id or chain:address: a 1-365 day time series with change %, high and low, or the price at an exact past date Token price history in USD for any coin by CoinGecko id or by chain:address: a time series over 1 to 365 days with change %, high and low, or the price at an…

Price of MANY tokens (BATCH): on-chain USD spot price for up to 15 ERC-20s in one call, each from its deepest Uniswap v3 pool vs USDC/WETH. Tokens with no pool return an error entry. Use this for 2+ tokens; for a single token use token-spot-price (cheaper).

Price of ONE token: on-chain USD spot price for a single ERC-20 on Base, from the deepest Uniswap v3 pool vs USDC/WETH (slot0), with the pool/fee tier used and its USD depth. No off-chain feed; thin pools are easy to manipulate. To price MANY tokens at once, use multi-token-price instead (one cheaper call).

Use this endpoint to read calibrated asset price outlooks across equities, crypto, and commodities, grouped by settlement source and horizon. Each returns five scenarios plus a labeled whole-curve directional take. The nearest still-open horizon is marked without hiding neutral views. A PriceSignal is a separate current execution call and appears only on its exact Hyperliquid group.

Real-time product price lookup from a public e-commerce product URL. Use for product price checks, price monitoring, price comparison, shopping agents, ecommerce research, retail workflows, deal finding, and target-price tracking.

Verified price, currency, availability and seller of a product page URL from its schema.org JSON-LD / microdata / OpenGraph data. robots.txt respected; blocked or unpriced pages return 'unavailable' (not charged).

Historical end-of-day stock prices for a US-listed ticker: open, high, low, close and volume per day, week, month or year between start_date and end_date, oldest first. Paginated with next_page_url. Use when an agent needs a price series or a return over a date range. Non-Professional use; Professional use needs a plan at financialdatasets.ai.

Posted hospital prices for one billing code near a US ZIP code or point

Spot price, market cap, 24h volume and 24h change for any coins by id (bitcoin, ethereum, solana and thousands more), in any quote currency. The reference leg for every other signal here: funding and open interest only mean something next to what price did.

Find the current prices shown on a product or listing page, with currency and context. Every monetary amount found on a page with its currency and surrounding context, plus the schema.org Offer price when the page declares one. Works on any product page, not only marketplaces. Fetche…

Batch current prices, market caps, and 24h changes for up to 50 cryptocurrencies by symbol or name (CoinGecko).

Prices one economy decision — AGWC price, treasury flow, or economy health — stores it, and later checks the outcome against the same internal APIs. Machine clients pay $0.05 USDC (x402, Base L2) per signal. Humans: https://agentpaystore.com/eds/

Primality check. Call for teaching demos, ID heuristics, or lightweight number filters (bounded integers). Returns whether n is prime with a clear boolean field. $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.

Miller-Rabin primality test (with witnesses that are exact for all 64-bit integers) on an arbitrary-precision integer. Returns { prime }.

Generate a list of prime numbers up to a specified limit.

Generate twin prime pairs (p, p+2, both prime) up to a specified limit.

Prime-factorize a positive integer (≤ 10^15 so the computation is always fast). Returns the prime factors with exponents, the divisor count, and whether n is prime.

Issue a signed read-only EVM integration-readiness report for a public address

Private key/value memory for an agent: remember values across calls (set/get/delete/list/exists), scoped to the paying wallet.

Private ordered list/queue for an agent: push/pop/peek/range/length/clear, scoped to the paying wallet. For task queues, event logs, buffers.

Get a long completion with a large output budget, same engine as /v1/llm. Long-form LLM inference: same engine as /v1/llm with a four times larger output budget, up to 8000 tokens, for answers the cheap route truncates. Body: {prompt, system?, max_tokens?}

Business Frameworks business-frameworks/cash-flow/pro-forma@1.0 — How the forward view is built. Call when an agent needs the operating logic behind cash flow before using the scale bands and decision rules below it. Returns 350 tokens of original synthesis with public citations and child handles; free layer at /catalogue.

ProYield in one call: live stablecoin lending venue rates (safety tiers, blend target, sleeve rates, provenance) plus vault state on HyperEVM — share price, total assets, live caps — and a wallet's position when ?address= is supplied. Use when an agent wants the whole ProYield picture for one $0.005 call instead of two.

Live ProYield vault state on HyperEVM: share price, total assets, live on-chain caps (TVL cap, per-user cap, deposits paused), and — when an address is supplied — that wallet's position value and wallet USDC. Use when an agent needs to check vault health or a position before depositing.

Live ProYield yield intelligence: curated stablecoin lending venue rates with safety tiers, the vault blend target, fixed-pool and satellite sleeve rates, and full provenance (source + timestamps). Use when an agent needs current DeFi stablecoin yields or a risk-adjusted USDC rate anchor.

x402 endpoint validator, uptime probe, and crawled directory index of working x402 Bazaar APIs ($0.001 USDC) — Audits HTTP 402 PAYMENT-REQUIRED headers and returns verified working x402 services.

Given any public HTTP(S) URL, returns a measured liveness verdict - LIVE, PAUSED, GATED, CHALLENGED, DEGRADED, DEAD or UNKNOWN - with every reason carrying the source it was read from. The point is the case a status check misses: a front door answering 200 over a back end that stopped. Also sold at this origin: good ($149.00, POST /x402/good) - The x402 rail, ninety days - framed print, 24 x 36 in; census ($100.00, GET /x402/census) - The x402 rail census, ninety days, whole.

Fetch and validate the DKIM public key record at selector._domainkey for a domain: key type, key size, revocation and syntax, with coded findings. Use when an agent knows the selector (s= in a DKIM-Signature header) and must confirm that the key is published and usable. It does not verify message signatures.

List a domain's mail servers in preference order and detect null MX (RFC 7505) and MX targets that do not resolve, with coded findings. Use when an agent must find where mail for a domain is delivered or why a domain cannot receive mail.

One report on a domain's mail setup: MX, SPF and DMARC, plus DKIM for the selectors you give, with coded findings and an overall status. Use when an agent needs a complete overview of a domain's email authentication and delivery configuration in one call instead of four.

Try 27 common DKIM selectors (Google, Microsoft 365, Mailchimp, SendGrid, Mailgun, Zoho, Proton, Fastmail, Mailjet, Amazon SES and generic names) for a domain and validate every key found: type, size, revocation and testing flag. Use when an agent needs a domain's DKIM keys but does not know the selector. Finding none is a hint, not proof that DKIM is missing.

Check a domain's MTA-STS setup (RFC 8461): the _mta-sts record, the HTTPS policy file with certificate check and no redirects, mode, max_age and whether every MX host is covered, plus the TLS-RPT record (RFC 8460). Use when an agent must tell whether inbound mail is protected against TLS downgrade, or why senders report MTA-STS failures for a domain.

Resolve chosen DNS record types (A, AAAA, CNAME, MX, NS, TXT, SOA, CAA, SRV) for a name through public resolvers, with TTL, observation time and the resolver that answered. Use when an agent needs the current public DNS answer for a name, for example to confirm that a record change is visible or to read a TXT verification record.

Check a domain's BIMI record (<selector>._bimi, default selector, with fallback to the organisational domain): v=BIMI1 syntax, HTTPS logo and certificate URLs, an SVG logo path and whether DMARC is enforced at quarantine or reject with pct=100. Use when an agent must tell why a brand logo does not show in mail clients. The logo and certificate are not downloaded.

Parse and evaluate a domain's SPF record: the include and redirect tree, qualifiers and the RFC 7208 limit of ten DNS lookups, with coded findings. Use when an agent must tell whether SPF is valid, why mail from a service fails SPF, or whether one more include would exceed the lookup limit.

Report a domain's DNSSEC status (secure, insecure, bogus or unknown) as validated by public resolvers, with DS and DNSKEY algorithms, deprecated algorithms, SHA-1 digests and DS records without a matching key. Use when an agent must tell whether a domain is signed, why it fails on validating resolvers, or whether a key rollover left the chain of trust broken.

Check reverse DNS for a domain's mail servers: up to five MX hosts, their IPv4 and IPv6 addresses, each PTR name and whether it resolves back to the same address (FCrDNS), with coded findings. Use when an agent must tell whether a domain's mail servers have matching reverse DNS, a common reason for rejected or spam-filed mail.

Look up the DMARC record of a domain or its organisational domain and explain policy, subdomain policy, alignment and reporting addresses, with coded findings. Use when an agent must tell whether a domain is protected against spoofing, which policy it enforces, or why DMARC reports do not arrive.

Evaluate a domain's CAA records (RFC 8659), climbing to parent names up to the registrable domain when the name has none: allowed issuers for normal and wildcard certificates, iodef, unknown critical tags and invalid values. Use when an agent must tell which certificate authorities may issue for a domain, or why a certificate request is refused because of CAA.

One report on a domain's mail and DNS security: MX, SPF, DMARC, common DKIM selectors, MTA-STS with TLS-RPT, DNSSEC, reverse DNS of the mail servers, BIMI and CAA in one call, each as its own section with coded findings and evidence. Use when an agent must audit a domain's email security or build a domain health report; cheaper than calling the nine checks one by one. No score is computed.

Run the mail configuration check (MX, SPF, DMARC) on up to 20 domains in one request. Results keep the input order, and items that fail for a technical reason come with a token for a free retry. Use when an agent must audit many domains at once, for example a customer list or a portfolio of brands.

Probes an x402 endpoint: reachability, TLS, latency, the 402 response and whether its payment terms parse and make sense.

Verify payment connectivity with USDC on Base. Returns a JSON pong and UTC timestamp after settlement.

Is this French company in insolvency proceedings (sauvegarde, redressement, liquidation judiciaire)? Official BODACC court announcements: synthetic status, full judgment history, RCS deregistration flag. The #1 B2B check before signing. Query: ?siren=

Process guide - Section template: Section template for Process guide. 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.

Procurement - Daily sum series: Daily sum series for Procurement. Up to 200 supplied typed records. Local numeric and data-quality processing; no external enrichment or forecasting. One of 25 profiles or calculations across 20 shared operations in this sector. 0.01 USDC includes one bounded daily sum series deliverable.

Procurement - IQR outlier flags: IQR outlier flags for Procurement. Up to 200 supplied typed records. Local numeric and data-quality processing; no external enrichment or forecasting. One of 25 profiles or calculations across 20 shared operations in this sector. 0.01 USDC includes one bounded iqr outlier flags deliverable.

Trust-verification layer for procurement decisions involving AI vendors or agents — surfaces the same signed evidence (audit history, dispute record, attestations) a human procurement reviewer would ask for.