Development x402 offerings

RRULE recurrence expander — generate bounded RFC 5545 iCalendar occurrences in IANA timezones with windows, work limits, and daylight-saving (DST) policies.

Generate text embeddings and semantic embedding vectors using OpenAI text-embedding-3-small for vector search, semantic similarity, clustering, retrieval, and RAG workflows.

Generate text embeddings and semantic embedding vectors using OpenAI text-embedding-3-small for vector search, semantic similarity, clustering, retrieval, and RAG workflows.

Search 19+ platforms in a single API call: Reddit, Hacker News, GitHub, Stack Overflow, arXiv, npm, PyPI, X/Twitter, YouTube, Product Hunt, Dev.to, Qiita, Zenn, Semantic Scholar, GitLab, Hashnode, Lobsters, Lemmy, and x402 Bazaar. Includes Deep Research with AI synthesis. Accepts USDC payments on Base and Solana via x402 protocol.

Search 19+ platforms in a single API call: Reddit, Hacker News, GitHub, Stack Overflow, arXiv, npm, PyPI, X/Twitter, YouTube, Product Hunt, Dev.to, Qiita, Zenn, Semantic Scholar, GitLab, Hashnode, Lobsters, Lemmy, and x402 Bazaar. Includes Deep Research with AI synthesis. Accepts USDC payments on Base and Solana via x402 protocol.

Sort Semantic Versioning 2.0 versions (pre-releases included), give highest and lowest, the bump type between two, and which satisfy an npm-style range (^1.2.0, ~1.2, >=1.0 <2.0, 1.x || 2.x) plus the best match.

Semver parser and comparator: parse a semantic version into major, minor, patch, prerelease and build parts; compare two versions by precedence including prerelease ordering; or test whether a version satisfies a range expression using caret, tilde, hyphen, x-ranges and comparator sets. Returns the parsed structure, the comparison result and the reason a range did not match.

Test whether a version satisfies a semver range (^, ~, x-ranges, ||, hyphen).

Parse a semantic version into major/minor/patch, prerelease and build metadata.

Compare two semantic versions and report which is greater (precedence-aware).

Session Handoff Note: Done, Open, Next Step — Turns the log of one agent session (the user's requests, tool calls with their outputs, errors and the agent's own remarks) into the note the next session starts from, as strict JSON with done, not_done, open, decisions, files and next_step. Work counts as done only when the log shows a result, with the log line that proves it; a command that was issued, an output that was cut off or the agent's own "done" is not a result, an error with no successfu…

Regex tester: test a regular expression - matches, groups, count and backtracking risk check

Line-based diff between two strings using the Myers diff algorithm (via the diff/jsdiff library), returning a list of equal/add/remove operations.

Network-format generator API. Generates a valid ipv4/ipv6 address (optionally within a CIDR block or named network range) or a well-formed JWT string (via one of: ipv4, ipv6, jwt). Accepts optional locale (default en_US). jwt header/payload objects are capped to 2000 serialized characters.

Compares two semantic version strings and reports which is greater, lesser, or equal, using the standard semver comparison rules.

Computes the next N run times for a standard 5-field cron expression, avoiding the mental cron-schedule simulation an LLM often gets subtly wrong.

Does https://<domain>/openapi.json exist? Requests the path and returns the HTTP status, content type, size and the first 300 characters when it is text. Presence of openapi.json tells you about the site's tooling and policies. $0.01 per check.

Does https://<domain>/openapi.yaml exist? Requests the path and returns the HTTP status, content type, size and the first 300 characters when it is text. Presence of openapi.yaml tells you about the site's tooling and policies. $0.01 per check.

Explains a code snippet (max 20,000 characters): detected language, a summary, a step-by-step explanation, the functions and classes it defines, and possible bugs and security issues with line numbers. Line numbers outside the snippet are dropped. Model-written: a finding is a lead to check, not a verified defect.

A GitHub user's public profile (name, company, location, blog, bio, followers, public repos, creation date) and their five most-starred repositories that are not forks. Needs the GITHUB_TOKEN secret on the deployment; without it the call answers 503 and is not charged.

LLM chat completion with Llama 3.3 70B (fast): send messages or a prompt, up to 1,024 output tokens.

Markdown to HTML with GitHub-flavoured tables and strikethrough, heading ids, the list of headings and links, and a word count. Raw HTML in the input is escaped unless allowHtml is true; links and images with javascript:, vbscript: or data: addresses are removed. Pure code, no outbound request. Input up to 200 KB.

Stack Overflow questions matching words, optionally by tags and accepted status: title, score, answer count, accepted flag, tags and link. With answers=1 the accepted answer's first 600 characters are included. Content is CC BY-SA 4.0 (attribution per item). Stack Exchange API 2.3.

Issues or pull requests of a GitHub repository, searched by words and state (open, closed or all), newest updated first: number, title, state, labels, author, comments, dates and link. Needs the GITHUB_TOKEN secret; without it the call answers 503 and is not charged.