Developer Tools MCP Servers

Betterleaks Cloud - GitHub, Git, S3, Dir Secret Scanner

18 color tools: OKLCH, WCAG and APCA contrast fixes, palettes, gradients, color blindness, tokens.

Plan and check marketing copy against the nine questions every reader asks. Free, no API key.

Replicate MCP.

Governance MCP server for agent-maintained knowledge bases (OKF): git-backed writes, search, lint.

List a public API where AI agents discover tools, after a bounded readiness check.

Prices in 31 Israeli supermarket chains by barcode. Free search; API key or x402 pay-per-call.

Image understanding for AI agents — analyze and describe any image via the three.ws pipeline.

Swiss Register of Buildings and Dwellings (GWR/RegBL): EGID/EWID lookup, geocoding, housing stats

Unix epoch seconds

Royalty-free music fitted to your length: find, generate, adjust and download tracks and stems.

Control a USB (UVC) pan/tilt/zoom camera, with every move confirmed from the picture.

Rijksmuseum — the Dutch national museum's collection, via its open Data

Edit video by editing the transcript. Runs locally; agent edits arrive as suggestions you approve.

Products, prices and sellers from Amazon, Taobao/Tmall, AliExpress, TikTok Shop and Idealo (EU).

Current local time in Asia/Hong_Kong.

Retractions / research-integrity MCP.

Answer security questionnaires and RFPs from your AI knowledge base.

Sendora's docs and API for coding agents: send test mail, read the log, set up webhooks.

Company hiring signals + open jobs from Greenhouse, Lever, Ashby boards, API + MCP. 20 free/day.

Search Raindrop.io bookmarks and review tag and collection plans. Read-only MCP by default.

Anonymous, encrypted disclosure of AI alignment and safety failures, with signed receipts.

Native Safari browser automation for AI agents — 98 tools, zero Chrome overhead.

AI-native CRM: records, pipelines, tasks, calendar and the email, LinkedIn and WhatsApp inbox.

Free AI visibility and GEO audit: see what AI reads on your site and whether its answers cite you.

VIN recall API + MCP: VIN decode + every NHTSA recall, Do Not Drive first. $19/mo; 50 free/day.

Cash-pay MRI prices at 5,419 US hospitals.

Preflight a short or unknown URL before your agent fetches it. Returns next: fetch or skip.

MCP server caching expensive LLM responses: HTTP-style freshness plus semantic recall.

Sanctions Screening MCP — screen people, companies, vessels, and aircraft

SEO, broken links, Lighthouse, sitemaps, Open Graph tags and SSL expiry for any list of URLs.

Supply plans, hotel queries, licensed media and hosted capsules for agent conversations.

Percentile fingerprints, curated peers, theme clusters & market-stress context for US stocks.

SEC ADV / IAPD MCP — SEC Investment Adviser Public Disclosure (Form ADV) lookup

SchemaStore MCP

Korean banks, brokers, insurers: registration numbers, DART code, staff and audit opinion (FSC)

scream-void MCP — wraps StupidAPIs (keyless — no credential needed)

SEC Forms 3/4/5 — insider transactions, indexed so the question can be

Working capital for autonomous AI agents — USDC advances against verified job receivables on Arc.

SEPTA MCP — Philadelphia SEPTA real-time transit (www3.septa.org/api, keyless)

UTC century number

SEON MCP — wraps the SEON fraud / digital-footprint enrichment APIs (seon.io)

One inbox for all your addresses: your AI agent reads, sorts, drafts and sends with your permission.

Time-sortable id shape

Discover verified deep-tech engineering bounties from any AI agent.

SibFly — satellite-measured ground motion (subsidence / uplift) for any US address.

SEO Backlinks MCP — backlink intelligence via DataForSEO Backlinks API

Explore Roomvana room types and styles, then open a link to redesign a room from a photo.