Detect. Scan. Mend.

Your APIs break. mendapi heals them.

Every drifting particle above is an upstream breaking change. mendapi watches provider changelogs, scans your codebase entirely on your machine, and shows exactly what breaks — file and line — before production does.

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Code never leaves

Local-first

Scans run on your machine

The scanner executes locally or in your CI and makes zero network calls by default. Our test suite mechanically enforces that no networking primitive exists in the scan path.

Metadata-only

Source code cannot be uploaded

If you opt in to hosted reporting, only a whitelisted payload leaves: file names, line numbers, symbols. Snippets and source are structurally impossible to upload. Secrets are redacted on every path.

Auditable

Open source, self-hostable

The scanner is AGPL-licensed. Every claim above is a grep away. Enterprise runs fully self-hosted — your infrastructure, your rules.

Detect. Scan. Mend.

01

Watch upstream

We monitor 20+ providers — Stripe, OpenAI, AWS, Shopify, and more — across release feeds and changelogs, classifying every change: breaking, deprecation, additive.

02

Scan locally

Run npx mendapi scan. In under 30 seconds you get file-and-line impact: which breaking changes actually hit your code, with confidence levels that earn your trust.

03

Preview the fix

Run mendapi fix for a local diff preview built from official migration guides. Review it, apply it, ship it. No surprise pull requests.

30 seconds to truth

$ npx mendapi scan
mendapi v0.5 — scanning 1,039 files, network: off

stripe   breaking  high    lib/billing.js:14   setTimeout removed in v8
stripe   breaking  high    lib/billing.js:22   setApiVersion removed in v8
openai   deprecation medium src/embeddings.js:8 createEmbedding renamed

3 impacts across 2 providers. 27 changes checked, 24 filtered as noise.
$ mendapi fix --dry-run
1 migration available: stripe-v7-to-v8 (official migration guide)
patch written to .mendapi/stripe-v7-to-v8.patch — review before applying

For fintech teams

Stripe · Plaid · PayPal

The deepest coverage where it hurts most

Payment APIs break in minor-looking releases: a renamed controller, a reworded enum, a dropped response field. mendapi tracks each one at the endpoint level with audited auto-fix packs — built for teams a regulator can ask about.

mendapi for fintech →

Evidence chain

Every claim links its source

Each change in our database records the upstream announcement, spec diff or SDK release it came from — audit answers are one link away.

Self-hosted

Nothing leaves your perimeter

Enterprise runs the full stack inside your firewall with your own compute and LLM keys. See the security model.

Get on board

mendapi is in pre-release. Join the waitlist for early access to hosted monitoring — we email you once, when your invite is ready.