paid-api-access

Cron expression parser API: validate any cron expression and get its next N run times as ISO timestamps in any timezone. For scheduler-building and automation agents.

Geometry API: exact area, perimeter, volume, surface area, and diagonals for circles, rectangles, triangles (Heron's or base-height), spheres, cylinders, cones, cubes, and rectangular prisms — from structured dimensions. Validates the triangle inequality. For CAD, construction, education, and design agents.

Sunrise and sunset API: sun times (sunrise, sunset, solar noon, golden hour) plus moon phase and illumination for any coordinates and date, computed instantly. For photography, agriculture, solar, and outdoor-planning agents.

Linear algebra API: determinant, inverse, transpose, eigenvalues, multiply, or add matrices up to 50x50 with structured array inputs — exact computation, instant. The linear algebra LLMs can't do reliably in-context. For engineering, graphics, and scientific agents.

Encyclopedia summary API: the lead summary of any English-language encyclopedia article — title, one-line description, extract paragraph, thumbnail, and canonical URL — as JSON. For entity enrichment, fact grounding, and knowledge agents. CC BY-SA content with attribution included.

Postal code API: city, state, and coordinates for any zip/postal code in 60+ countries, and reverse place-to-codes search. For address validation, shipping, and geo-enrichment agents.

PyPI package inspection API: latest version, summary, license, requires-python, dependency declarations, and yank status for any Python package. The pre-install hygiene check for Python coding agents.

Phone number validation API: is this number valid, what country is it from, and how should it be formatted (E.164, national, international)? Line-type detection included. For lead cleaning, forms, and CRM agents.

Tech news pulse API: the current 30 top-ranked tech stories from the leading hacker community front page — title, outbound article URL, points, author, comment count, and ISO timestamps as normalized JSON. Use for tech trend detection, topic monitoring, newsletter pipelines, and content agents. Cached 3 minutes.

Text embeddings API without an API key: up to 64 texts per call, 768-dimension embedding vectors computed on our own hardware. For semantic search, clustering, dedup, and RAG. Pay per call with USDC over x402; inputs never stored.

Daily history facts API: retrieves notable historical events tied to any calendar date, each entry carrying the year, a one-line summary, and a link for further reading. Built to be called once a day as a rotating content source. Useful for calendar apps, morning-briefing bots, and educational trivia agents. Attribution required and included.

Describes what is in an image in about one second: pass an https URL or base64 and ask anything about it, from a one-line caption to reading a sign. Pairs with the rest of the chain: describe an image, translate the description, then have it read aloud. You are only charged if the description is delivered. No API key, no account.

A short brief, about one page, on a topic you specify, researched on the live web at the time of the request, with every source linked. Typically 60-120 s; allow 180 s. POST {"topic":"..."}.

Performs comprehensive URL health checks, measuring response time, status code, security headers, and TLS/SSL certificate validity. Route: GET /paid/health-check?url=https://example.com. Ideal for automated monitoring and endpoint auditing.

Read-only JSON-RPC access to Fraxtal, the OP-Stack L2 by Frax, served by the Pocket Network decentralised supplier set. Pay per request in USDC; no account, no API key.

Read-only JSON-RPC access to the Avalanche C-Chain, served by the Pocket Network decentralised supplier set. Pay per request in USDC; no account, no API key.

Sentiment classification: Verb-path alias of POST /v1/cheap-errand ($0.01 USDC). Same handler + payment terms; path defaults task=sentiment when body.task omitted. Cheap agent glue for buyer-supplied text. Base via x402. No API key.

Fetch one scalar from a public HTTPS JSON endpoint, store the observation, and return the complete stored time series. Use source, resource, and field. Resource is an RFC 6901 pointer to an object. Field is a relative pointer or key. Coverage starts with the first successful paid call. Earlier values are unavailable.

Single-CVE priority verdict from today's AIS ranked set (score, rank, factors) — or unlock every CVE route with an AIS CVE key ($19/30d): https://aislabs.ai/gateway/

Historical AIS daily brief by date (YYYY-MM-DD) — or unlock every CVE route with an AIS CVE key ($19/30d): https://aislabs.ai/gateway/

Look up whether a paid API route is listed and whether its listing matches the latest unpaid probe. Use url and optional method. Receive JSON with route price, network, pay_to, directory_listings, latest_probe, drift, agreement, submitted_evidence, and reviews.

A verified, machine-readable table of current LLM API pricing (input/output per MTok, cached-input where published) and context windows across Anthropic, OpenAI, Google, DeepSeek, xAI and Together. `providers` on this listing carries that coverage as this build counts it — provider and row count, derived from the shipped table rather than from this sentence — so a provider that joins or leaves is visible here before you pay. `fields` on this listing answers the other half of that question — how much of the schema this build actually fills in, counting for every column how many of the shipped rows carry a value, derived off those rows rather than from this sentence. Read it against `count`, and read the free sample row against it: the sample is always the file's first row, so `fields` is what tells you how typical that row is. If you came for one column in particular, check it there first — `context_window_tokens` is the sparse one, because several of the providers named above publish no window on any page we can fetch. Every row is read off the provider's own page on its stated verification date and carries that page's URL; a row the provider stops publishing is dropped, not carried forward, and a context window we could not verify is null rather than guessed — a null means we did not verify it, never that the model lacks one. `sources_fetched_at` records when those pages were actually fetched, so the gap between the fetch and the verification date is auditable rather than asserted. Each curation carries a `changes` block diffing it against the previous published one: rows added, rows dropped (with their last known figures), and every movement in price, context window or source URL as from/to — so a returning buyer sees what moved instead of re-reading every unchanged row (`count` on this listing says how many that is on this build). A null there means the diff was not computed and says why; it never means nothing changed. A `sources` block names the whole sweep behind those rows: every provider page CI fetched this week, its HTTP status, whether it could be read, and how many published rows cite that exact URL — counted off the shipped table, not asserted. Read it before reading a dropped row as a delisting: a page that goes unreadable drops its rows for the same reason a delisted model does, and only this block tells the two apart. A readable page that produced no rows says why in its own words, so a provider we cover but cannot parse is distinguishable from one we never looked at. Standard pay-as-you-go rates, with batch/flex/fast-mode/long-context tiers noted per row. Re-verified weekly by the operator agent. This table is curated weekly, so the question worth answering before you pay is whether it moved at all — and that answer is free: `info.output.example.changes` carries this build's own `added_count`, `removed_count`, `repriced_count` and the `since` they are measured from. A week of three zeroes means you already have this file; do not buy it. Which models moved, and to what, is what the $0.05 buys.

Country facts API: capital, currencies, languages, population, region, calling code, and flag for any country by name or ISO code, as one JSON object. For forms, localization, compliance, and enrichment agents.

Provide an API origin and inline OpenAPI document, with optional names and tags. Receive JSON containing a validated mpp.dev service entry, warnings, and ready-to-copy TypeScript without a remote fetch.