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Code & developer tools
2,999 listings from 2,363 providers, 1,422 answering · counted
Filed by addrbook from the words in each listing, so a heading says what a listing claims to be for.
Showing 526–550, one row per provider, those answering first · names and descriptions as their source publishes them
- Protocol Radar - Aaron Zhangaaron-protocol-radar.vercel.appLatest releases of AI agent frameworks and specs as JSON: OpenClaw, Model Context Protocol specification, LangGraph, CrewAI. Version, date, days since release and link to release notes, read live from GitHub.Livechecked Evidence 1/4x402x402 Bazaar2 payers1 more from aaron-protocol-radar.vercel.app
- Sato Hubsatohub.aiDaily Sato Score history for one Sato Hub listing: score, tier components, GitHub stars, status and verification state per day, with the dates the score moved (genuine changes vs our own method revisions marked). Captured daily since 2026-06-12; not reconstructable. The current catalog and the daily score line stay free. Priced per daily point returned: $0.005 for up to 90 days, +$0.001 per day beyond.Livechecked Evidence 1/4x402x402 Bazaar2 payers
- SiteCheck Trade & Energyapi.tradeenergy-api.workers.devEU VAT rates (standard and reduced) for one member state on a given date, from the open ibericode/vat-rates dataset on GitHub, a community compilation (not the official EU TEDB). Does not cover IOSS registration or de minimis rules.Livechecked Evidence 1/4x402x402 Bazaar2 payers
- Forest Infrahttp--forest-gas-station-mainnet--lcjl27p8lmjs.code.runNormalize the latest public GitHub Actions workflow/run state. Reads only; dispatch, rerun, cancellation, private repositories and customer OAuth are unsupported. Base mainnet USDCLivechecked Evidence 1/4x402x402 Bazaar2 payers
- depscout.vercel.app/risk/packagedepscout.vercel.appCheck an npm package, PyPI package, or GitHub repo and return a DepScout install verdict.Livechecked Evidence 1/4x402x402 Bazaar2 payers
- ENS / Basename Resolverautomaton-tx-explainer.vercel.appUse when: what address is behind this ENS name or Basename (or vice versa)? Resolve an ENS name or Basename to an address (plus url/twitter/github text records), or reverse-resolve an address to its primary name.Livechecked Evidence 1/4x402x402 Bazaar2 payers
- Base Onchain Dataonchaincheck.devResolve a Basename (name.base.eth) to its Base address and profile records (avatar, description, url, Twitter, GitHub). Accepts "jesse", "jesse.base" or "jesse.base.eth".Livechecked Evidence 1/4x402x402 Bazaar2 payers
- Annalistapi.annalist.devDated contract changes in widely used public APIs (Stripe, GitHub, OpenAI, Twilio, Slack, Plaid, Datadog and more), from their published OpenAPI descriptions read daily: operations, parameters and request fields added, removed or newly required, each change marked breaking or not. Last 1 to 90 days, one API with api=, or only breaking changes with breaking=true. Signed.Livechecked Evidence 1/4x402x402 Bazaar2 payers3 more from annalist.dev
- Agent Miner Toolsagent-api-production.tim1712.workers.devUse before a coding agent installs an unfamiliar npm dependency. Returns current facts from the official npm registry: the version `npm install` resolves (dist-tags.latest), prerelease and deprecation status, engines.node compatibility with an optional target Node version (real SemVer evaluation), license, days since release, best-effort weekly downloads, repository URL and maintainer count. Facts only — no safety, trust, or malware verdict.Livechecked Evidence 1/4x402x402 Bazaar2 payers
- api.onhub.ai/v1/codeapi.onhub.aiWrites and runs Python to compute or verify an answer, returning the code, its output, and a final answer.Livechecked Evidence 1/4x402x402 Bazaar2 payers
- api.signalfuse.co/v1/gateway/execute/e2bapi.signalfuse.coSandboxed Python code execution via E2BLivechecked Evidence 1/4x402x402 Bazaar2 payers
- SiteCheck Jobs & Propertyapi.jobsproperty-api.workers.devBulgarian IT jobs from DEV.BG for a technology category (e.g. python, java, javascript, devops, qa): job title, company, location, work mode (on-site/hybrid/remote), tech stack icons, salary when published, posting date as shown (Bulgarian) and job URL, from the public category listing page (first page).Livechecked Evidence 1/4x402x402 Bazaar2 payers
- invinoveritasapi.babyblueviper.cominvinoveritas /agent-economy-brief — a RECOMPUTABLE cross-source AI-agent ecosystem brief: which MCP servers, GitHub agent repos, arxiv AI/ML papersLivechecked Evidence 1/4x402x402 Bazaar2 payers
- Forest Packageshttp--forest-gas-station-mainnet--lcjl27p8lmjs.code.runResolve a public GitHub release into the most plausible downloadable asset for a normalized OS/architecture target, excluding source/signature/checksum files and linking checksum companions when present. Returns ambiguity instead of silently choosing tied candidates. No private repositories or customer authentication. Base mainnet USDCLivechecked Evidence 1/4x402x402 Bazaar2 payers
- Preflightpreflight402.comCall before installing packages suggested by a language model. Returns, for each npm or PyPI package name, whether it actually exists in the registry, whether it is deprecated or yanked, and — when the name is not found — the closest real package names. Catches hallucinated dependencies (slopsquatting) before an agent installs them. Never inspects package contents and never returns a safety verdict.Livechecked Evidence 1/4x402x402 Bazaar2 payers1 more from preflight402.com
- pitcrew-api.appin60.com/x402/preflightpitcrew-api.appin60.comCheck any x402 paid endpoint before paying it: does it return a valid 402 challenge, which networks/tokens/prices it accepts (decoded to USD), whether amounts are valid atomic units, payTo sanity, testnet-only offers, missing Bazaar input schema, redirects and latency. Returns a verdict (payable / payable with warnings / broken / unreachable) and the exact problems. Useful for agents choosing between paid APIs and for sellers debugging why x402scan or the CDP Bazaar skipped their route.Livechecked Evidence 1/4x402x402 Bazaar2 payers
- SiteCheck Company Recordsapi.companyrecords-api.workers.devPublic npm package record from the npm registry: latest version, license, description, homepage, repository and tarball URL. Read-only lookup of one package by exact name; no download counts.Livechecked Evidence 1/4x402x402 Bazaar2 payers1 more from companyrecords-api.workers.dev
- x402-gatewayx402.freeq.oneEphemeral webhook receiver. Creates a single-use HTTPS URL that catches any POST (Stripe, GitHub, internal) for 1 hour; senders pay nothing. Read captured events for $0.01 per read, extend for $0.05/hour. Response returns hook_url, read_url, extend_url, expires_at.Livechecked Evidence 1/4x402x402 Bazaar2 payers4 more from freeq.one
- Forest Infrahttp--forest-gas-station-mainnet--lcjl27p8lmjs.code.runCheck the current operational HTTP health of one public URL or API endpoint with a bounded GET or HEAD probe. Returns reachability, status code, redirects, content type and size basics; it does not scrape page content, run JavaScript or test private networks. Base mainnet USDCLivechecked Evidence 1/4x402x402 Bazaar2 payers
- StableSocialstablesocial.devScrape Creators · GitHub — UserLivechecked Evidence 1/4x402x402 Bazaar2 payers7 more from stablesocial.dev
- Package Safety Gatemcp.dropenginehq.comnpm package safety gate: vulnerabilities, malware advisories, typosquatting, install-script risk.Livechecked Evidence 1/4x402x402 Bazaar2 payers
- Atinamos JSON Validate / Repairagent.atinamos.co.ukDeterministic JSON validation and conservative repair for AI-agent payloads. Repairs unquoted object keys, single-quoted strings, trailing commas, Markdown code fences, UTF-8 BOMs and JSON-compatible Python literals, including nested or repeated defects. No LLM or invented data; every applied transformation is reported.Livechecked Evidence 1/4x402x402 Bazaar2 payers
- sicher.halowerk.com/v1/cve-checksicher.halowerk.comQueries OSV.dev for a list of packages with versions across npm, PyPI, Go, Maven, crates.io, NuGet, RubyGems, Packagist and the Linux distributions. For each package it returns the vulnerabilities found with their identifiers, severity and summary, and the single figure that decides what to do next: the lowest version that fixes all of them, derived from the fixed-version events in the affected ranges.Livechecked Evidence 1/4x402x402 Bazaar2 payers16 more from halowerk.com
- WebberSites x402 Data APIapi.webbersites.comWCAG accessibility check (static analysis): findings mapped to WCAG success criteria with A/AA/AAA levels — alt text, page title, lang, form labels, heading structure, table headers, link purpose, accessible names, duplicate IDs, ARIA role validity, zoom blocking, meta refresh, skip links. Filter with ?level=A|AA|AAA. Honestly reports what static analysis cannot check (contrast, focus, keyboard).Livechecked Evidence 1/4x402x402 Bazaar2 payers
- Agent Extraction APIfreetier-agent-api.pages.devSearch 4,259 MCP (Model Context Protocol) servers by keyword, category, language (python/typescript/go/rust...), scope (cloud/local) and official flag. Returns repo URL and description.Livechecked Evidence 1/4x402x402 Bazaar2 payers2 more from freetier-agent-api.pages.dev