← All headings
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 501–525, one row per provider, those answering first · names and descriptions as their source publishes them
- EVM developer utilitiesapi.vextorium.comEVM developer utilities: keccak256 hash, function selector from a signature, EIP-55 checksum address and wei/gwei/ether conversion.Livechecked Evidence 1/4x402x402 Bazaar3 payers4 more from vextorium.com
- SiteCheck Web Intelapi.webintel-api.workers.devFor a subdomain: finds its CNAME, matches the target against the public can-i-take-over-xyz fingerprint list (services such as GitHub Pages, S3, Azure, WordPress), checks whether the target still resolves, and fetches the subdomain once to look for the service's 'unclaimed' page text. Verdicts are evidence, not proof; the list is community-maintained.Livechecked Evidence 1/4x402x402 Bazaar3 payers
- Forest Webhttp--forest-gas-station-mainnet--lcjl27p8lmjs.code.runDiscover machine-readable integration documentation from a public developer/docs page: llms.txt, Markdown alternates, API/auth docs, OpenAPI or Swagger specifications, and MCP candidates. Candidates are returned only after bounded verification. Maximum 10 HTTP requests; no JavaScript, recursive crawl or authenticated content. Base mainnet USDCLivechecked Evidence 1/4x402x402 Bazaar3 payers
- NetIntelnetintel.devExa neural web search for AI agents — POST or GET a query, get ranked live results (title, url, published_date, author, score) with optional highlight snippets. Filter by category (news, research paper, github, company, pdf, and more), domain include/exclude, and publish date. For a direct answer use /exa/answer. No API key, pay per call on Base or Solana.Livechecked Evidence 1/4x402x402 Bazaar3 payers2 more from netintel.dev
- Mekler AIapi.mekler.aiCheck public PyPI or npm package identity and a requested version. Compare up to five supplied candidate names for normalized-name equality and bounded edit-distance confusion. Return sourced existence and version evidence without downloading code. No malware, vulnerability, publisher-authenticity or installation-safety guarantee.Livechecked Evidence 1/4x402x402 Bazaar3 payers2 more from mekler.ai
- GitHub Repo & User Dataapi.kadec0.xyzGitHub data. Repository stats, user profiles, and code-search results (stars, forks, language, topics, issues) via the GitHub REST API.Livechecked Evidence 1/4x402x402 Bazaar3 payers1 more from kadec0.xyz
- Lazarettolazaretto.devSupply chain security scan of an npm or PyPI package, GitHub repo, raw URL, ClawHub skill or MCP server. Use it when an agent is about to install, clone or connect to something. Matches the target against OSV and OpenSSF advisories to catch known malware, then behavioral analysis for credential theft, exfiltration, obfuscation, prompt injection, install-time droppers and tool poisoning. Returns a verdict, file-and-line evidence, a SHA-256 and a signed attestation. An errored scan is free.Livechecked Evidence 1/4x402x402 Bazaar3 payers
- github-repo-seo-auditx402.charliemorrison.devGitHub repo discoverability & SEO audit: scores a repo's README, description, topics, homepage and metadata and returns a 0-100 score, a grade, and fixes. Input: owner, repo.Livechecked Evidence 1/4x402x402 Bazaar3 payers
- Verify deliverable, code onlycrosscheckapi.comVerify output another AI agent hands back, by code alone, for $0.005: no model call, answers in about a second. Recomputes the deliverable's written sums, totals, percentages, dates, weekdays, time spans, unit conversions, and list counts; checks lengths the task asks for; flags placeholders and prompt injection; measures words, items, and JSON shape. Signed receipt, tier lite. For every requirement judged, use accept ($0.03).Livechecked Evidence 1/4x402x402 Bazaar3 payers
- x402 Data APIdata.kagurazaka.devx402 APIs grouped into categories (crypto and on-chain, LLM and AI, web and search, media, finance, social, geo and weather, developer tools, other) with listings, origins, well-paid listings, calls and median price.Livechecked Evidence 1/4x402x402 Bazaar3 payers
- Chain Codex402-data-api.sigrunner.workers.devContract-code check for a Base mainnet address (is_contract + code size + EIP-7702 delegated-EOA detection). Use when an agent must check whether a Base address is a contract or an EOA before interacting.Livechecked Evidence 1/4x402x402 Bazaar3 payers
- Signal Oracleoracles-production.up.railway.appStored detail for a single incident (entityId like 'status:GitHub:abc123').Livechecked Evidence 1/4x402x402 Bazaar3 payers
- WebLensapi.weblens.devShould you depend on this package? Version, license, deprecation (with the maintainer's reason), weekly and monthly downloads, last release date, maintainer count, npm quality/popularity/maintenance scores, and health signals — npm or PyPI, one call.Livechecked Evidence 1/4x402x402 Bazaar3 payers
- Settledsettled.toolsPrice: $0.01 in USDC on Base. Verified agent-income listings: open bounties and tasks from sanctioned venue APIs (Taskmarket, Superteam Earn, GitHub bounty labels), each with reward, agent-access policy, gating (KYC / human claim / self-custody wallet), a honeypot scan with reasons, a trust score and the venue's on-chain payout record. Honeypots and human-only listings are excluded by default.Livechecked Evidence 1/4x402x402 Bazaar3 payers1 more from settled.tools
- api.glianalabs.com/x402/tools/repo-scanapi.glianalabs.comGlianaAI - Pay-per-call AI models, live market data, SEC filings and identity APIs, no signup, USDC. This resource: tools/repo-scan. Scan a whole public GitHub repository for leaked credentials. https://ai.glianalabs.comLivechecked Evidence 1/4x402x402 Bazaar2 payers
- Forest Packageshttp--forest-gas-station-mainnet--lcjl27p8lmjs.code.runVerify whether a specific npm or PyPI package version exists before installation, resolve the current/latest version, and report deprecation or yank state when available, plus license and runtime requirement. This is a public-registry package install preflight; it does not resolve dependency graphs or perform vulnerability analysis. Base mainnet USDCLivechecked Evidence 1/4x402x402 Bazaar2 payers
- Parallel Agent Worktree Reviewapi.aiskills402.comParallel Agent Worktree Review — Reviews a plan or shell script that lets several coding agents work in parallel, each in its own git worktree, and lists only the five mistakes that make the agents collide, one line each with a fixed code, the place, why it breaks and the fix - or exactly No findings. It catches one branch checked out in two worktrees or forced onto a second one, two agents started on the same fixed port, an untracked secret file missing in a new worktree or written by two agen…Livechecked Evidence 1/4x402x402 Bazaar2 payers18 more from aiskills402.com
- Startup Name Availability Checkstartup.use.x402atlas.comCheck if a startup or company name is available: domain availability across .com .io .ai .co .dev .app .xyz .net .org .so .sh .gg .me plus GitHub, npm, PyPI and X username availability in one call, with a ready-to-call link to the advanced check.Livechecked Evidence 1/4x402x402 Bazaar2 payers2 more from x402atlas.com
- FiatDockfiatdock.comIs an npm or PyPI package version safe and maintained? Known vulnerabilities from OSV.dev (ids, CVEs, the advisory's own severity, fixed versions), deprecation or yank, licence, repository, publish dates, latest version, weekly downloads, dependency and maintainer counts, stated risk flags. No code scanning; unknowns are null. An unknown package or an outage is not charged. Pay-per-call via x402.Livechecked Evidence 1/4x402x402 Bazaar2 payers1 more from fiatdock.com
- SiteCheck Crypto & Financeapi.chainmarket-api.workers.devEVM contract verification status from Sourcify (open, no key): match type (exact/partial), compiler, contract name, ABI function and event counts, proxy implementations. Only verified contracts; source files are not returned. Unverified contracts give a 404.Livechecked Evidence 1/4x402x402 Bazaar2 payers
- datastand.dev/api/data/npm-vuln-digestdatastand.devNewest npm security advisories as JSON: severity, CVSS 3.x and 4.0 scores and vectors, EPSS exploit odds, CWEs, affected packages, vulnerable ranges, first patched version, and a fix_status flag for those no upgrade fixes. Merged from GitHub Advisory Database's newest-published and newest-revised orderings, so a new score or widened range on an old advisory reaches you. Add ?since=<ISO-8601> for only what changed; an empty delta is refused free, so polling costs nothing until there is news.Livechecked Evidence 1/4x402x402 Bazaar2 payers
- REP Wallet Reputationapp.r3p.xyzPaid MCP endpoint — POST a JSON-RPC tools/call. Tools: get_content / refresh_content (public profile data: github, twitter, linkedin) and the rep_* wallet-reputation tools (rep_rank, rep_rank_batch, rep_achievements, rep_persona_match, rep_profile_report). Flat USD prices per call, quoted in the 402.Livechecked Evidence 1/4x402x402 Bazaar2 payers
- Base Onchain Dataca-tax-api-mainnet.lxtap.workers.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
- Grokzilla x402 Micro Paygrokzilla.shopFetch one public web page and return its title and clean Markdown (headings, links, lists, code, tables). Honors robots.txt, SSRF-guarded, HTML only, 1 MB / 5 s caps. No JavaScript rendering.Livechecked Evidence 1/4x402x402 Bazaar2 payers
- sparky-works.vercel.app/api/bounty-truthsparky-works.vercel.appAudit a public GitHub bounty issue for stale status, competing pull requests, claimant signals, and solver saturation.Livechecked Evidence 1/4x402x402 Bazaar2 payers