Balance on Exchanges (Total) — The total amount of coins held on exchange addresses. Data by Glassnode.

Upcoming climate and weather event resolutions — Upcoming climate and weather market resolutions in date order with current blended probabilities — the forward calendar of climate and weather events an agent can position around. Same shape as /v1/calendar, pre-filtered to climate and weather markets.

Use when an agent needs bazaar trending. Returns x402 Bazaar trending report: services gaining settled calls and unique payers fastest between the two latest daily snapshots, with decliners and new entrants. $0.003.

Check the confirmation status of a transaction by hash on Base/Polygon/Arbitrum/Optimism/Ethereum/Monad/Celo/Avalanche/Sei/Arc/Robinhood Chain: success / failed / pending / not found, with block, from, to, gas used. Read-only.

Preflight one public URL before an agent uses it: verify immediate HTTP reachability, origin status, redirect destination, response headers and cache validators with a bounded HEAD-first probe. GET is used only when HEAD is unsupported. No JavaScript, login, page extraction or availability guarantee. Base mainnet USDC

Detect the technology stack of a public website: CDN, web server, language/runtime, frontend framework (Next.js, Nuxt, SvelteKit, Remix, Astro, React, Vue, Angular), CMS (WordPress, Drupal, Ghost, Shopify, Wix, Squarespace, Webflow), analytics (GA, GTM, PostHog, Mixpanel, Segment, Hotjar, Plausible, Fathom), and payments (Stripe, PayPal). Signature-based; no third-party API.

Use when an agent needs rewrite. Returns Rewrite text per a natural-language instruction (tone, formality, simplification, shortening) — deterministic flash-model rewriting with hard input/output caps. $0.005.

Use when an agent needs run python. Returns Runs a short Python program in an isolated sandbox and returns its output: exit code, stdout/stderr (64 KB each), duration, up to 3 artifact files in ./out/, and a receipt. Python 3.12 with the standard library plus numpy, pandas and requests; no network; 512 MB; up to 30 s. Input: code (32 KB), optional stdin, args and up to 4 input files. Free syntax check: POST /api/v1/run-python/validate; worked example: GET /api/v1/run-python/example. $0.05.

Use when an agent needs compile policy. Returns Compile a merchant payment policy across x402, MPP, AP2, and card rails from product, risk, authorization, latency, asset, and refund constraints. $0.02.

Use when an agent needs chat completion. Returns One bounded chat completion (standard messages request shape) per paid call, with no account to open and no provider key to hold; max 24,000 input characters and 600 output tokens. $0.01.

Use when an agent needs bazaar delta. Returns x402 Bazaar day-over-day catalogue diff between the two latest daily full-catalogue snapshots: counts and samples of added resources, removed resources, and price changes (from/to atomic amounts). $0.004.

Use when an agent needs batch url json. Returns Prepaid batch of up to 10 HTTPS URL-to-JSON extraction jobs with one idempotent reconciled completion receipt. $0.02.

Use when an agent wants a chat completion paid per call with no API key, on Base or Solana. Returns Chat completion from six catalogued models with usage and settled charge. $0.01. Rail: $0.01 fixed on Base.

Use when an agent needs bazaar category heat. Returns x402 Bazaar category heat map: every listing in the latest daily full-catalogue snapshot classified into 9 categories (search/scrape, crypto-data, ai-inference, social-data, verification, compute/browser, agent-tools, enrichment, other) with listing counts, settled 30d calls, unique payers and listing share per category. $0.003.

Use when an agent needs extract json. Returns Extract structured JSON from unstructured text against a caller-supplied JSON Schema — parse-validated with one automatic retry, 502 on failure instead of garbage. $0.01.

Use when an agent needs a quick sentiment read on a passage, a headline or a topic before acting on it. Returns Sentiment label (positive, negative or neutral) with a confidence and a one-line summary for a text passage or a named topic. $0.05.

Use when an agent needs people search. Returns People search for agents over a rich filter vocabulary (names, locations, skills, titles, seniority, company name/domain/industry/HQ/specialties), with bounded public-reference results and explicit nulls for private contact and employment fields. $0.10.

Use when an agent needs web search. Returns Bounded web search for agents over a public encyclopedic reference index: ranked title, URL and snippet results with offset/limit paging and a total count. $0.01.

Use when an agent needs agent return context. Returns Accountless returning-agent context bundle with optional Bazaar, time, Base, facilitator-health, cursor-aware Bazaar delta and trending components, statuses, next cursor, and evidence hash. $0.005.

Returns model health status and per-chain training stats (sequence count, last retrain time) — check before relying on sequence-anomaly scores for a given chain.