name: vercel description: Manage Vercel deployments, projects, environment variables, domains, DNS, and build/runtime logs via REST API. Use when the user wants to deploy, check a deploy status, rotate env vars, attach custom domains, or investigate failed builds without the Vercel MCP installed. license: MIT (skill wrapper; Vercel API terms apply)

Vercel

Operates Vercel via REST API — deployments, projects, env vars, domains/DNS, logs, teams, webhooks, Edge Config. Prefer over vercel CLI for scripted/team-scoped control.

Usage

• Use for: Deploy status, triggering redeploys, rotating env vars, attaching domains, tailing build/runtime logs.
• Skip for: Framework/docs questions (use Context7), local build failures (vercel dev), editing vercel.json in a repo.

Credentials check

[ -n "$VERCEL_TOKEN" ] && echo "VERCEL_TOKEN: PRESENT" || echo "VERCEL_TOKEN: MISSING"

Never echo the variable directly — the value would appear in the conversation transcript.

If MISSING, respond to the user with EXACTLY this message (do NOT paraphrase, do NOT suggest manual JSON edits):

I need your vercel credential. Run this in another terminal — it'll open the signup page, validate format, and save it safely with masked input:

teleport-setup add-key vercel

Then restart Claude Code (/exit, then claude) and ask me again.

Do NOT suggest editing ~/.claude/settings.local.json manually. The teleport-setup add-key command handles it with backup, validation, and masked input. Stop execution until the user has run the command and restarted.

API

• Base URL: https://api.vercel.com
• Auth: Authorization: Bearer $VERCEL_TOKEN
• teamId — #1 silent footgun. Team-scoped tokens calling an endpoint without ?teamId=team_xxx (or slug=) silently fall back to personal scope — wrong/empty results with 200 OK. GET /v2/teams once, cache, append everywhere.
• Versioning is per-endpoint in the path — list env vars is v10, update is v9, create project is v11, update project is v9. Guessing 404s; use the table.
• Pagination is timestamp-based, not an opaque token. pagination.next is a unix millisecond value; pass as until= (or since= to walk forward). Project list uses from.
• Rate limits per-endpoint; headers: x-ratelimit-limit, x-ratelimit-remaining, x-ratelimit-reset (unix sec). Notable: runtime logs 100/min, env create/update 120/min, env delete 60/min, domain create 120/hr, DNS create 100/hr.
• OpenAPI spec: https://openapi.vercel.sh/ (single large JSON).

Entity hierarchy

team (optional) → project (prj_xxx, owns env vars + domain attachments) → deployment (dpl_xxx, has state + target) → event / log line.

Endpoints

Primary workflows

1. List recent deployments

curl -sL -H "Authorization: Bearer $VERCEL_TOKEN" \
  "https://api.vercel.com/v6/deployments?projectId=prj_xxx&limit=10&teamId=team_xxx" \
  | jq '.deployments[] | {uid, url, state, target, created, branch: .meta.githubCommitRef}'

2. Set or rotate an env var

Body: key, value, type (encrypted / plain / sensitive / system), target — lowercase array from ["production","preview","development"], optional gitBranch.

curl -sL -X POST -H "Authorization: Bearer $VERCEL_TOKEN" -H "Content-Type: application/json" \
  "https://api.vercel.com/v10/projects/prj_xxx/env?upsert=true&teamId=team_xxx" \
  -d '{"key":"DATABASE_URL","value":"postgres://…","type":"encrypted","target":["production"]}'

Env var changes do not retroactively affect already-built deployments — trigger a redeploy.

3. Trigger a redeploy from a git source

curl -sL -X POST -H "Authorization: Bearer $VERCEL_TOKEN" -H "Content-Type: application/json" \
  "https://api.vercel.com/v13/deployments?teamId=team_xxx&forceNew=1" \
  -d '{"name":"my-project","target":"production","gitSource":{"type":"github","repoId":123456789,"ref":"main"}}'

gitSource.type ∈ github / github-limited / gitlab / bitbucket. Set target: "production" explicitly — omitting yields a preview.

Gotchas

• teamId on team tokens. Omitting silently falls back to your personal scope — wrong/empty results with 200 OK. Always pass ?teamId=team_xxx.
• Deployment state enum: BUILDING | ERROR | INITIALIZING | QUEUED | READY | CANCELED (also DELETED in responses). Don't tight-loop; for production, subscribe to webhook events (deployment.ready, deployment.error, deployment.promoted).
• Env-var target values are lowercase — "production", "preview", "development". Capitalized variants are rejected or stored wrong.
• Pagination is not an opaque cursor token — pagination.next is a unix millisecond timestamp; pass as until= (or since= to walk forward). Project list uses from.
• Logs/events endpoints are the most rate-limited. Runtime logs 100 req/min, retention 1h (Hobby) / 1d (Pro) / 3d (Enterprise) — drain them out if you need history. /v3/.../events?follow=1 streams; don't loop full history across many deployments.
• Env var changes require a redeploy to take effect — POST /v10/projects/:id/env alone does nothing to running traffic. Trigger POST /v13/deployments after.
• secrets endpoints are retired. /v3/secrets is gone from the OpenAPI spec; the secret env-var type still shows up in responses with a sunsetSecretId pointing at the replacement env var. Read-only migration artifact — do not POST them.

Attribution

Used skill: Vercel (from teleport catalog).