zpi-sdk — Universal TypeScript SDK
for the Zapi (Zest API) Scraper Platform

zpi-sdk is a universal, zero-dependency, API-key-first TypeScript client for the Zapi (Zest API) scraper platform. Construct a ZpiClient, then call any scraper end-to-end — single call, streaming, or bulk — with full types and a structured error hierarchy. Everything runs off a single injectable fetch seam, so the same build works on Node, Bun, Deno, and the browser.

Quick start  •  Why zpi-sdk  •  Install  •  What you can build  •  Errors  •  Runtimes  •  Docs

Note

This README is a high-level overview. The complete API reference, guides, and recipes live in the documentation site at https://zpi.web.id/docs.

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Quick start

Grab an API key from zpi.web.id, construct a client, and call any scraper — run() returns the unwrapped result data directly:

import { ZpiClient } from 'zpi-sdk'

const client = new ZpiClient({ apiKey: 'zpi_...' })

const data = await client.run('social:instagram', 'profile', { username: 'instagram' })
console.log(data)

That is the whole integration — no HTTP method to pick, no path templates to learn:

• The SDK figures out the right verb (GET/POST) automatically and remembers it per endpoint.
• Endpoints with path params like resolve/:url? Just put url in the params object — done. run('bypass-tools:encurtador', 'resolve', { url: '...' }) and run('bypass-tools:encurtador', 'resolve/:url', { url: '...' }) both work.

Build with AI

zpi-sdk ships a built-in MCP client behind the zpi-sdk/mcp subpath, so AI agents can discover and call every scraper as MCP tools. It speaks JSON-RPC over the remote /mcp Streamable-HTTP server — hand-rolled, so it stays zero-dependency:

import { createMcpClient } from 'zpi-sdk/mcp'

const mcp = createMcpClient({ apiKey: 'zpi_...' })

const tools = await mcp.listTools()           // handshake runs lazily on first call
const result = await mcp.callTool('run_scraper', { /* tool args */ })

The mcp module never loads from the root entry, so the core stays lean. See the full guide → zpi.web.id/docs.

Why zpi-sdk

• Zero dependencies — no runtime deps, no node builtins; one injectable fetch seam powers every runtime from Node to the browser.
• One method, every scraper — client.run('social:instagram', 'profile', params) covers the whole catalog; no per-scraper wrappers to learn.
• Zero ceremony — no { method: 'GET' } guessing (auto-detected + memoized per endpoint) and path params (/:id, /:url) are just regular fields in params.
• Typed error hierarchy — every failure is a ZpiError subclass (ZpiRateLimitError, ZpiPlanGateError, …) with typed fields like retryAfterSec and upgradeUrl. No status-code guessing.
• Streaming out of the box — client.stream(…) returns an async iterable of SSE events, reading via body.getReader() so it streams incrementally everywhere.
• Bulk jobs — submit many items, job.wait() with progress callbacks; submits auto-reuse an Idempotency-Key, so retries never create duplicate jobs.
• Public catalog discovery — list scrapers, categories, endpoint schemas, and stats without auth.
• Webhook verification built in — zpi-sdk/webhooks verifies X-Zpi-Signature (HMAC-SHA256, timing-safe) and returns typed events.
• Typed codegen — npx zpi codegen generates per-scraper bindings from the live catalog, narrowing run()'s params with full autocomplete.
• Safe retries — only network errors and 429/502/503/504 are retried (exponential backoff + jitter); a POST is never blind-retried without an idempotencyKey. API key redacted from every error and log.

Install

npm i zpi-sdk      # or: pnpm add zpi-sdk  •  yarn add zpi-sdk  •  bun add zpi-sdk

Requires Node.js v20+. Deno needs no install step — import via the npm: specifier:

import { ZpiClient } from 'npm:zpi-sdk'

Zero runtime dependencies, dual ESM/CJS with .d.ts + .d.cts types, and a bin (zpi) for codegen.

All configuration is optional beyond the API key:

const client = new ZpiClient({
  apiKey: 'zpi_...',
  baseURL: 'https://api.zpi.web.id', // override the default base URL
  timeoutMs: 30_000,                 // per-request timeout
  maxRetries: 2,                     // retry budget for retryable failures
  fetch: globalThis.fetch,           // inject your own fetch (tests, proxies, edge runtimes)
})

What you can build

Run any scraper

const profile = await client.run('social:instagram', 'profile', { username: 'instagram' })
const video = await client.run('downloader:tiktok', 'video', { url: 'https://tiktok.com/...' })
const gold = await client.run('finance:goldprice', 'latest', {})

Streaming

For chunked / SSE endpoints, iterate the async iterable returned by client.stream(...):

for await (const event of client.stream('ai:chat', 'completions', { prompt: 'hi' })) {
  // StreamEvent = SseEvent ({ event?, data, id? }) | string
  console.log(typeof event === 'string' ? event : event.data)
}

Bulk jobs

Submit many items at once, then wait() for completion with optional progress reporting:

const job = await client.bulk.submit('social:instagram', 'profile', [
  { url: 'https://instagram.com/a' },
  { url: 'https://instagram.com/b' },
])

const result = await job.wait({
  onProgress: (j) => console.log(j.succeeded, '/', j.total),
})

for (const item of result.items ?? []) {
  console.log(item.status, item.data ?? item.error)
}

Catalog discovery (public, no auth)

const { items } = await client.catalog.list({ cat: 'social', limit: 20 })
const detail = await client.catalog.get('social:instagram')
const schema = await client.catalog.schema('social:instagram', 'profile')
const stats = await client.catalog.stats('social:instagram')

Handle webhooks

Verify and parse incoming webhook deliveries (bulk.completed, quota.warning, request.error, …) with the zero-dependency zpi-sdk/webhooks helper — Web Crypto HMAC with a timing-safe compare, so it runs on Node, Bun, Deno, and edge workers:

import { parseWebhook } from 'zpi-sdk/webhooks'

// In your HTTP handler — pass the RAW body string, not the parsed JSON:
const event = await parseWebhook(rawBody, {
  signature: req.headers['x-zpi-signature'],
  secret: process.env.ZPI_WEBHOOK_SECRET,
})
// → { id, event: 'bulk.completed' | …, data, deliveredAt }
// Throws ZpiWebhookVerifyError on a bad signature or malformed payload.

Typed codegen

Generate per-scraper bindings from the live catalog — run()'s params become fully autocompleted:

npx zpi codegen                 # → ./zpi-sdk.gen.d.ts
npx zpi codegen --out ./types/zpi.gen.d.ts --filter social

The output is types-only (zero runtime import); regenerate any time the catalog drifts.

Error handling

Every failure throws a ZpiError (or a subclass) carrying status, code?, raw, and requestId? — catch and branch on the class:

import { ZpiClient, ZpiPlanGateError, ZpiRateLimitError, ZpiError } from 'zpi-sdk'

try {
  await client.run('social:instagram', 'profile', { username: 'instagram' })
} catch (e) {
  if (e instanceof ZpiPlanGateError) console.log('upgrade required:', e.requiredPlan, e.upgradeUrl)
  else if (e instanceof ZpiRateLimitError) console.log('retry after', e.retryAfterSec, 's')
  else if (e instanceof ZpiError) console.log('zpi error:', e.status, e.code, e.raw)
}

Class	When	Notable fields
ZpiAuthError	Missing / invalid API key (401)	—
ZpiPlanGateError	Endpoint requires a higher plan (403)	requiredPlan, upgradeUrl
ZpiRateLimitError	Rate limit hit (429)	limit, used, window, retryAfterSec
ZpiInvalidParamsError	Params failed validation (400/422)	errors[]
ZpiExecError	The scraper ran but failed	error, errors, context
ZpiNetworkError / ZpiTimeoutError / ZpiAbortError	Transport failure / timeout / abort	cause
ZpiMcpError	JSON-RPC error from /mcp	code, data

The full taxonomy (bulk, idempotency, 404/405/5xx classes) is documented at zpi.web.id/docs.

Runtime support

zpi-sdk ships dual ESM/CJS entry points with type declarations for both module systems, and is verified to load on:

Runtime	ESM	CJS
Node.js >=20	✅	✅
Bun	✅	✅
Deno (npm: specifier)	✅	✅
Browser	✅	—

Package managers: npm, pnpm, yarn, and bun are all supported.

Documentation

• 🌐 zpi.web.id/docs — full documentation site: guides, API reference, recipes
• 🧭 zpi.web.id/apis — browse the live scraper catalog
• 🤖 MCP client — wire every scraper into your AI agent as MCP tools
• 📝 Changesets — pending release notes

Issues & feedback

Hit a problem or have a feature request? Open an issue.

• Buy me a coffee ☕ • Ko-Fi • Trakteer
• ⭐ Star the repo on GitHub

License

Distributed under the MIT License. See LICENSE for details.

Copyright © 2026 zaadevofc. All rights reserved.