WithZero x402 REST usage
Generate images from a text prompt with xAI's Grok Imagine quality tier. Returns hosted image URLs.
0.05 USDC per call
per call
Publishing
16 services carry this tag in their source record. Tags come from the provider, not from us — a tag is a claim about what the service does, not proof that it does it well.
CitePulse x402 REST usage
Single-paper lookup by DOI or title for research agents — citation count, influence, open-access status with a direct legal-OA link (Unpaywall), venue, and a TLDR. Deterministic passthrough over OpenAlex + Semantic Schol...
0.02 USDC per call
per call
Social Posting APIs 2026 x402 REST usage
Social Posting APIs 2026: Limits and Costs — Tells a publishing agent what the social networks allow, cost and return in autumn 2026, checked on 8 October 2026, before it plans or writes the posting code. Covers X (no fr...
0.05 USDC per call
per call
Agent Artifact Publisher x402 REST usage
Publish agent-generated files, JSON reports, markdown, or text and return a stable public URL.
0.005 USDC per call
per call
validate-isbn x402 REST usage
ISBN-10 or ISBN-13 checksum validation (auto-detected by length).
0.001 USDC per call
per call
does-site-use-medium x402 REST
Does a website use Medium? Fetches the page (homepage for a bare domain) and matches Medium's fingerprints in the HTML and response headers, returning yes/no with the evidence snippet and the category (publishing). Techn...
no price published
does-site-use-substack x402 REST
Does a website use Substack? Fetches the page (homepage for a bare domain) and matches Substack's fingerprints in the HTML and response headers, returning yes/no with the evidence snippet and the category (publishing). T...
no price published
does-site-use-ghost-pro x402 REST
Does a website use Ghost(Pro)? Fetches the page (homepage for a bare domain) and matches Ghost(Pro)'s fingerprints in the HTML and response headers, returning yes/no with the evidence snippet and the category (publishing...
no price published
does-site-use-medium-watch x402 REST
Change watch for does site use medium: runs the check, compares it with the result from your previous call for the same domain (kept 90 days) and returns the current answer, changed true/false, the fields that changed wi...
no price published
does-site-use-substack-watch x402 REST
Change watch for does site use substack: runs the check, compares it with the result from your previous call for the same domain (kept 90 days) and returns the current answer, changed true/false, the fields that changed...
no price published
does-site-use-ghost-pro-watch x402 REST
Change watch for does site use ghost pro: runs the check, compares it with the result from your previous call for the same domain (kept 90 days) and returns the current answer, changed true/false, the fields that changed...
no price published
does-site-use-medium-bulk x402 REST
Bulk does site use medium: up to 20 domains in one call, processed concurrently, results in input order with a per-item error field and a failure count. Same answer per item as the single endpoint. Batch enrichment for a...
no price published
does-site-use-substack-bulk x402 REST
Bulk does site use substack: up to 20 domains in one call, processed concurrently, results in input order with a per-item error field and a failure count. Same answer per item as the single endpoint. Batch enrichment for...
no price published
does-site-use-ghost-pro-bulk x402 REST
Bulk does site use ghost pro: up to 20 domains in one call, processed concurrently, results in input order with a per-item error field and a failure count. Same answer per item as the single endpoint. Batch enrichment fo...
no price published
Publish x402 REST
Publish a permanent, server-side rendered (SSR) contextual article with JSON-LD schema, DoFollow attribution, /llms.txt indexing & Ed25519 receipt across 93 canonical domains in 12 verticals ($1.00 USDC).
1 USDC per call
per call
Quietforge Typeset API x402 REST
Detect the structure of a book manuscript before typesetting it: the chapter list our engine will use (numbered / unnumbered), words and scene breaks per chapter, paragraph count, characters the book font cannot print, a...
0.01 USDC per call
per call