npm package discovery and stats viewer.

Discover Tips

  • General search

    [free text search, go nuts!]

  • Package details

    pkg:[package-name]

  • User packages

    @[username]

Sponsor

Optimize Toolset

I’ve always been into building performant and accessible sites, but lately I’ve been taking it extremely seriously. So much so that I’ve been building a tool to help me optimize and monitor the sites that I build to make sure that I’m making an attempt to offer the best experience to those who visit them. If you’re into performant, accessible and SEO friendly sites, you might like it too! You can check it out at Optimize Toolset.

About

Hi, 👋, I’m Ryan Hefner  and I built this site for me, and you! The goal of this site was to provide an easy way for me to check the stats on my npm packages, both for prioritizing issues and updates, and to give me a little kick in the pants to keep up on stuff.

As I was building it, I realized that I was actually using the tool to build the tool, and figured I might as well put this out there and hopefully others will find it to be a fast and useful way to search and browse npm packages as I have.

If you’re interested in other things I’m working on, follow me on Twitter or check out the open source projects I’ve been publishing on GitHub.

I am also working on a Twitter bot for this site to tweet the most popular, newest, random packages from npm. Please follow that account now and it will start sending out packages soon–ish.

Open Software & Tools

This site wouldn’t be possible without the immense generosity and tireless efforts from the people who make contributions to the world and share their work via open source initiatives. Thank you 🙏

© 2026 – Pkg Stats / Ryan Hefner

@perspective-ai/sdk

v1.15.1

Published

Embed SDK for Perspective AI research interviews

Readme

@perspective-ai/sdk

Embed SDK for Perspective AI — AI-powered conversation agents for your website.

Installation

npm install @perspective-ai/sdk

Quick Start

Vanilla JavaScript

<button id="feedback-btn">Get Started</button>

<script type="module">
  import { openPopup } from "@perspective-ai/sdk";

  document.getElementById("feedback-btn").addEventListener("click", () => {
    openPopup({
      researchId: "your-research-id",
      onSubmit: () => {
        console.log("Conversation completed!");
      },
    });
  });
</script>

React? Use @perspective-ai/sdk-react for hooks and components.

Embed Types

| Type | Function | Description | | -------- | --------------------------------- | ------------------------------- | | Widget | createWidget(container, config) | Inline embed in a container | | Popup | openPopup(config) | Centered modal overlay | | Slider | openSlider(config) | Side panel slides in from right | | Float | createFloatBubble(config) | Floating chat bubble in corner | | Fullpage | createFullpage(config) | Full viewport takeover |

Widget (Inline Embed)

import { createWidget } from "@perspective-ai/sdk";

const container = document.getElementById("interview-container");
const handle = createWidget(container, {
  researchId: "your-research-id",
});

Sizing — two modes, picked automatically

The widget adapts to whether you have sized its container:

  • Bare drop-in (no size on the container) → renders as a centered, framed card (border, rounded corners, soft shadow, max-width: 480px, min-height: 640px) so it looks finished with zero CSS.
  • Host-sized container (you give it a height, flex, a grid track, absolute positioning, etc.) → the widget fills the container exactly, with no card framing. This is the original behaviour and is ideal for full-bleed or "full page" layouts (e.g. header + widget + footer):
<header>…</header>
<!-- sized by the host → fills it edge to edge, no card -->
<div
  data-perspective-widget="your-research-id"
  style="height: calc(100vh - 120px)"
></div>
<footer>…</footer>

The widget's container and appearance are configured with the frame object. Force a mode when auto-detection isn't what you want — "fill" restores the full-width behaviour, "card" always frames:

createWidget(el, { researchId: "…", frame: { layout: "fill" } }); // or "card"
<Widget researchId="…" frame={{ layout: "fill" }} /> // @perspective-ai/sdk-react
<div data-perspective-widget="…" data-perspective-frame="layout=fill"></div>

Styling the frame

Every visual aspect of the card is exposed three equivalent ways — pick whichever fits. They all resolve to the same CSS custom property:

| Aspect | frame field | CSS variable | Default | | ---------- | ------------- | --------------------------------- | ------------------ | | Max width | maxWidth | --perspective-widget-max-width | 480px | | Min height | minHeight | --perspective-widget-min-height | 640px | | Border | border | --perspective-widget-border | 1px solid border | | Radius | radius | --perspective-widget-radius | theme radius | | Shadow | shadow | --perspective-widget-shadow | soft shadow | | Background | background | --perspective-widget-bg | theme background |

Precedence (highest → lowest): a field set via frame / data-perspective-frame (the SDK writes it as an inline variable on the wrapper) → your own --perspective-widget-* declaration in CSS → the built-in default. So a frame field overrides a stylesheet variable. For any field you don't pass to frame, your CSS variable wins at any specificity — the SDK leaves that var unset, so there's nothing to out-specify and it isn't clobbered by global resets like Tailwind Preflight's * { border-width: 0 }.

// 1) The frame object (config / React prop)
<Widget researchId="…" frame={{ radius: "4px", shadow: "none" }} />
<!-- 2) Script tag — packed data attribute (same format as data-perspective-brand) -->
<div
  data-perspective-widget="…"
  data-perspective-frame="radius=4px,shadow=none,layout=card"
></div>
/* 3) Stylesheet — any selector, even :root */
.perspective-widget {
  --perspective-widget-radius: 4px;
}

Sizing the container (height, flex, height: 100%, …) switches to fill mode automatically; frame.layout overrides that detection either way. Values that contain commas (e.g. a multi-layer box-shadow) can't be packed into the data attribute — use the CSS variable for those.

Popup Modal

import { openPopup } from "@perspective-ai/sdk";

const handle = openPopup({
  researchId: "your-research-id",
  theme: "dark",
});

Slider Panel

import { openSlider } from "@perspective-ai/sdk";

const handle = openSlider({
  researchId: "your-research-id",
});

Float Bubble

import { createFloatBubble } from "@perspective-ai/sdk";

const handle = createFloatBubble({
  researchId: "your-research-id",
});

// Control the bubble
handle.open();
handle.close();
handle.toggle();
console.log(handle.isOpen); // boolean

Fullpage

import { createFullpage } from "@perspective-ai/sdk";

const handle = createFullpage({
  researchId: "your-research-id",
});

Configuration

interface EmbedConfig {
  // Required
  researchId: string; // The ID of your Perspective agent

  // Optional
  host?: string; // Custom API host
  theme?: "light" | "dark" | "system"; // Theme preference (default: "system")
  channel?: "TEXT" | "VOICE" | ["TEXT", "VOICE"]; // Interaction mode (default: from server config)
  welcomeMessage?: string; // Teaser text next to float button (float-type only)
  teaser?: TeaserConfig; // Teaser on/off, delay, sound, and dismissibility (float-type only)
  buttonText?: string; // Custom text for popup/slider trigger buttons
  params?: Record<string, string>; // Custom URL parameters for tracking
  brand?: {
    light?: BrandColors; // Light mode brand colors
    dark?: BrandColors; // Dark mode brand colors
  };
  launcher?: LauncherConfig; // Float button customization (see Launcher Customization section)
  disableClose?: boolean; // Prevent user from closing popup/slider (hides X, blocks ESC/overlay)

  // Callbacks
  onReady?: () => void;
  onSubmit?: (data: { researchId: string }) => void;
  onClose?: () => void;
  onNavigate?: (url: string) => void; // Handle navigation (default: window.location.href)
  onError?: (error: EmbedError) => void;
  onAuth?: (data: { researchId: string; token: string }) => void; // Cross-origin auth complete
}

interface BrandColors {
  primary?: string; // Primary accent — buttons, progress bar, links, mic, focus rings
  bg?: string; // Interview background behind the card, shown only when no background scene is set
  secondary?: string; // @deprecated — ignored, no longer forwarded (no-op)
  text?: string; // @deprecated — ignored, no longer forwarded (no-op)
}

Handle API

All embed functions return a handle for programmatic control:

EmbedHandle (Widget, Popup, Slider, Fullpage)

interface EmbedHandle {
  unmount(): void; // Remove the embed
  update(options): void; // Update callbacks
  destroy(): void; // Alias for unmount (deprecated)
  readonly iframe: HTMLIFrameElement | null;
  readonly container: HTMLElement | null;
  readonly researchId: string;
  readonly type: EmbedType;
}

FloatHandle (Float Bubble)

interface FloatHandle extends EmbedHandle {
  open(): void; // Open the chat window
  close(): void; // Close the chat window
  toggle(): void; // Toggle open/close
  readonly isOpen: boolean; // Current state
  readonly type: "float";
}

Launcher Customization (Float Bubble)

Customize the float bubble's icon, size, shape, color, and CSS via the launcher config:

Icon Options

import { createFloatBubble } from "@perspective-ai/sdk";

// Default — channel-based SVG (mic for voice, chat for text)
createFloatBubble({ researchId: "xxx" });

// Brand avatar — fetched from the embed config API
createFloatBubble({
  researchId: "xxx",
  launcher: { icon: "avatar" },
});

// Custom image URL
createFloatBubble({
  researchId: "xxx",
  launcher: { icon: { url: "https://example.com/icon.png" } },
});

// Inline SVG
createFloatBubble({
  researchId: "xxx",
  launcher: { icon: { svg: '<svg viewBox="0 0 24 24">...</svg>' } },
});

Style & Size

Use launcher.style for inline CSS overrides (highest precedence, overrides brand colors):

createFloatBubble({
  researchId: "xxx",
  launcher: {
    style: {
      width: "64px", // default: 58px
      height: "64px",
      borderRadius: "12px", // default: 50% (circle)
      bottom: "24px", // default: 20px
      right: "24px", // default: 20px
      backgroundColor: "#10b981",
      boxShadow: "0 4px 12px rgba(16, 185, 129, 0.4)",
    },
  },
});

Custom CSS Class

Use launcher.className to add CSS classes (additive — existing SDK classes are preserved):

createFloatBubble({
  researchId: "xxx",
  launcher: { className: "my-custom-launcher" },
});

CDN Data Attributes

<!-- Custom icon URL -->
<div
  data-perspective-float="your-research-id"
  data-perspective-launcher-icon="https://example.com/icon.png"
></div>

<!-- Avatar icon with style overrides -->
<div
  data-perspective-float="your-research-id"
  data-perspective-launcher-icon="avatar"
  data-perspective-launcher-style="width:64px;height:64px;border-radius:12px"
  data-perspective-launcher-class="my-class"
></div>

Launcher Config Reference

interface LauncherConfig {
  icon?:
    | "default" // Channel-based SVG (default)
    | "avatar" // Brand avatar from config API
    | { url: string } // Custom image URL
    | { svg: string }; // Inline SVG markup (JS API only)
  style?: LauncherStyle; // CSS overrides (e.g. width, borderRadius, backgroundColor)
  className?: string; // CSS class(es) to add to the button
}

| Data Attribute | Description | | --------------------------------- | ------------------------------------------------ | | data-perspective-launcher-icon | Icon: "avatar", "default", or an image URL | | data-perspective-launcher-style | CSS overrides: "width:64px;border-radius:12px" | | data-perspective-launcher-class | CSS class(es) to add to the button |

Style Precedence

Highest wins:

  1. launcher.style (e.g. backgroundColor)
  2. brand.light.primary / brand.dark.primary
  3. Server-configured theme colors
  4. SDK default (#7629C8)

Image Error Fallback

When icon is { url } or "avatar" and the image fails to load, the button automatically falls back to the default channel-based SVG icon.

Channel & Welcome Message

Channel

Control which interaction mode the embed uses:

// Voice only (default)
createFloatBubble({ researchId: "xxx" });

// Text only — shows chat icon instead of mic
createFloatBubble({ researchId: "xxx", channel: "TEXT" });

// Both channels enabled
createFloatBubble({ researchId: "xxx", channel: ["TEXT", "VOICE"] });

If not set, the channel defaults to the server-configured value for the research.

Welcome Message

Show a teaser bubble next to the float button with a typewriter animation:

createFloatBubble({
  researchId: "xxx",
  welcomeMessage: "Have a question? I'm here to help.",
});

The teaser appears after 3 seconds with a chime sound. Click the teaser or the float button to open the chat, or the teaser's × button to dismiss it without opening the chat (the dismissal holds for the rest of the browser session). Only applies to float-type embeds.

Teaser Control

Control whether and when the teaser appears via the teaser option:

createFloatBubble({
  researchId: "xxx",
  welcomeMessage: "Have a question? I'm here to help.",
  teaser: {
    enabled: true, // false disables the whole welcome sequence (teaser, chime, dot)
    delay: 5000, // ms after mount before the teaser appears (default: 3000)
    sound: false, // mute the chime (default: true)
    dismissible: false, // hide the teaser's × button (default: true)
  },
});
  • enabled: false turns off the teaser bubble, the chime sound, and the notification dot entirely.
  • delay sets when the teaser bubble appears, in milliseconds. The chime tracks the teaser, playing 1 second before it appears (or immediately, when delay is under a second).
  • sound: false mutes the chime while keeping the teaser bubble.
  • dismissible: false removes the × button from the teaser bubble. By default, dismissing the teaser also clears the notification dot and keeps the teaser hidden for the rest of the browser session (per agent, stored in sessionStorage).

Or declaratively via data attributes:

<div
  data-perspective-float="research_xxx"
  data-perspective-teaser="false"
></div>

<div
  data-perspective-float="research_xxx"
  data-perspective-teaser-delay="5000"
  data-perspective-teaser-sound="false"
></div>

| Data Attribute | Description | | ------------------------------------- | --------------------------------------- | | data-perspective-teaser | "false" disables the welcome sequence | | data-perspective-teaser-delay | Milliseconds before the teaser appears | | data-perspective-teaser-sound | "false" mutes the chime | | data-perspective-teaser-dismissible | "false" hides the teaser's × button |

Teaser settings configured in the Perspective dashboard (delivered via the config API) take precedence over values passed in code.

Disable Close

Prevent users from closing the popup or slider (hides the close button, disables ESC key and overlay click):

openPopup({
  researchId: "xxx",
  disableClose: true,
});
<button
  data-perspective-popup="your-research-id"
  data-perspective-disable-close
>
  Start
</button>

Useful for mandatory onboarding flows or required interviews.

Embed Auth (onAuth)

Handle cross-origin authentication tokens from embedded interviews:

openPopup({
  researchId: "xxx",
  onAuth: ({ researchId, token }) => {
    // Store or forward the auth token
    console.log("Auth token received:", token);
  },
});

The onAuth callback fires when the embedded interview completes an authentication flow. The token can be used for custom session management or API calls.

State Persistence

The SDK automatically persists the open/closed state of popup, slider, and float embeds across page navigations within the same session.

  • Uses sessionStorage (resets when the tab/window closes)
  • Key format: perspective-embed-state:{host}:{type}:{researchId}
  • On page load, if a previous embed was open, it auto-restores to the open state
  • handle.destroy() persists a "closed" state (won't auto-restore)
  • handle.unmount() cleans up without affecting persisted state (for framework cleanup)

This happens automatically — no configuration needed.

Global Configuration

Configure SDK-wide defaults before creating embeds:

import { configure, getConfig } from "@perspective-ai/sdk";

// Set global host
configure({ host: "https://custom-host.example.com" });

// Get current config
const config = getConfig();

Custom Parameters

Pass tracking or attribution parameters:

openPopup({
  researchId: "your-research-id",
  params: {
    email: "[email protected]",
    name: "John Doe",
    source: "marketing-campaign",
  },
});

Reserved Parameters

These parameters are managed by the SDK and cannot be overridden via params:

  • embed, embed_type, theme
  • Brand colors: brand.primary, brand.bg, etc.
  • UTM parameters: utm_source, utm_medium, utm_campaign, utm_term, utm_content

Constants

Import SSR-safe constants for advanced use cases:

import {
  SDK_VERSION,
  MESSAGE_TYPES,
  DATA_ATTRS,
  PARAM_KEYS,
  THEME_VALUES,
} from "@perspective-ai/sdk";

// Or import from the constants submodule
import { MESSAGE_TYPES } from "@perspective-ai/sdk/constants";

Available Constants

| Constant | Description | | --------------- | ------------------------------------- | | SDK_VERSION | Current SDK version | | FEATURES | Feature flags for version negotiation | | MESSAGE_TYPES | PostMessage event types | | DATA_ATTRS | HTML data attribute names | | PARAM_KEYS | URL parameter keys | | BRAND_KEYS | Brand color parameter keys | | THEME_VALUES | Valid theme values |

Types

All types are exported for TypeScript users:

import type {
  EmbedConfig,
  EmbedHandle,
  FloatHandle,
  EmbedError,
  EmbedType,
  BrandColors,
  ThemeConfig,
  SDKConfig,
  // Auto-trigger types
  TriggerConfig,
  TriggerType,
  ShowOnce,
  AutoOpenConfig,
} from "@perspective-ai/sdk";

Auto-Trigger Popups

Open popups automatically based on configurable triggers — no user click required. Ideal for lead capture, onboarding, intake flows, and engagement prompts.

JavaScript API

import {
  openPopup,
  setupTrigger,
  shouldShow,
  markShown,
} from "@perspective-ai/sdk";
import type { TriggerConfig, ShowOnce } from "@perspective-ai/sdk";

const researchId = "your-research-id";
const showOnce: ShowOnce = "session"; // "session" | "visitor" | false

if (shouldShow(researchId, showOnce)) {
  const cleanup = setupTrigger({ type: "timeout", delay: 5000 }, () => {
    markShown(researchId, showOnce);
    openPopup({ researchId });
  });

  // Call cleanup() to cancel the pending trigger
}

Trigger Types

| Trigger | Config | Description | | ----------- | ---------------------------------- | ------------------------------------ | | Timeout | { type: "timeout", delay: 5000 } | Open after a delay (ms) | | Exit Intent | { type: "exit-intent" } | Open when cursor leaves the viewport |

Show-Once Dedup

| Value | Storage | Behavior | | ----------- | ---------------- | ------------------------------------------------ | | "session" | sessionStorage | Show once per browser session (default) | | "visitor" | localStorage | Show once per visitor (persists across sessions) | | false | — | Always show |

Functions

| Function | Signature | Description | | ------------------ | ------------------------------------------------------------- | -------------------------------------------------- | | setupTrigger | (config: TriggerConfig, callback: () => void) => () => void | Set up a trigger, returns cleanup function | | shouldShow | (researchId: string, showOnce: ShowOnce) => boolean | Check if popup should show (dedup check) | | markShown | (researchId: string, showOnce: ShowOnce) => void | Mark popup as shown for dedup | | parseTriggerAttr | (value: string) => TriggerConfig | Parse data attribute value (e.g. "timeout:5000") |

CDN / Script Tag Usage

For non-module environments, use the browser bundle:

<script src="https://getperspective.ai/v1/perspective.js"></script>

Declarative (Data Attributes)

<!-- Inline widget -->
<div data-perspective-widget="your-research-id"></div>

<!-- Popup trigger -->
<button data-perspective-popup="your-research-id">Start Conversation</button>

<!-- Slider trigger -->
<button data-perspective-slider="your-research-id">Open Panel</button>

<!-- Float bubble -->
<div data-perspective-float="your-research-id"></div>

<!-- Fullpage -->
<div data-perspective-fullpage="your-research-id"></div>

Data Attributes Reference

| Attribute | Description | | ------------------------------------- | ------------------------------------------------------- | | data-perspective-widget | Inline widget embed | | data-perspective-frame | Widget frame: "layout=fill,radius=4px,shadow=none,…" | | data-perspective-popup | Popup trigger button | | data-perspective-slider | Slider trigger button | | data-perspective-float | Floating chat bubble | | data-perspective-fullpage | Full page embed | | data-perspective-params | Custom params: "key1=value1,key2=value2" | | data-perspective-theme | Theme: "light", "dark", or "system" | | data-perspective-brand | Light mode colors: "primary=#xxx,bg=#yyy" | | data-perspective-brand-dark | Dark mode colors | | data-perspective-no-style | Disable auto-styling on trigger buttons | | data-perspective-disable-close | Prevent user from closing popup/slider | | data-perspective-auto-open | Auto-open trigger: "timeout:5000" or "exit-intent" | | data-perspective-show-once | Show-once dedup: "session", "visitor", or "false" | | data-perspective-launcher-icon | Launcher icon: "avatar", "default", or image URL | | data-perspective-launcher-style | Launcher CSS: "width:64px;border-radius:12px" | | data-perspective-launcher-class | CSS class(es) for the launcher button | | data-perspective-teaser | "false" disables the float welcome teaser | | data-perspective-teaser-delay | Milliseconds before the teaser appears (default 3000) | | data-perspective-teaser-sound | "false" mutes the teaser chime | | data-perspective-teaser-dismissible | "false" hides the teaser's × button |

Auto-Trigger (Data Attributes)

<!-- Auto-open popup after 5 seconds, once per session -->
<div
  data-perspective-popup="your-research-id"
  data-perspective-auto-open="timeout:5000"
  data-perspective-show-once="session"
  style="display:none"
></div>

<!-- Exit-intent popup, show every time -->
<div
  data-perspective-popup="your-research-id"
  data-perspective-auto-open="exit-intent"
  data-perspective-show-once="false"
  style="display:none"
></div>

When data-perspective-auto-open is present, the element acts as a hidden config holder — no button styling is applied.

Programmatic (Global API)

<script>
  // Direct functions
  Perspective.openPopup({ researchId: "xxx" });
  Perspective.openSlider({ researchId: "xxx" });
  Perspective.createFloatBubble({ researchId: "xxx" });
  Perspective.createFullpage({ researchId: "xxx" });

  // Mount widget into container
  Perspective.mount("#container", { researchId: "xxx" });

  // Generic init with type
  Perspective.init({ researchId: "xxx", type: "popup" });

  // Destroy by researchId
  Perspective.destroy("xxx");
  Perspective.destroyAll();

  // Configuration
  Perspective.configure({ host: "https://custom.example.com" });
</script>

SSR Safety

The SDK is SSR-safe. All DOM access is guarded and returns no-op handles on the server:

// Safe to call during SSR - returns a no-op handle
const handle = openPopup({ researchId: "xxx" });
handle.unmount(); // No-op on server

Browser Support

  • Chrome 80+
  • Firefox 80+
  • Safari 14+
  • Edge 80+

License

MIT