README

Official PHP SDK for the AstroWay API — natal charts, synastry, transits, Vedic dashas, Tarot, Numerology, Human Design, AI horoscopes. Type-safe, retry-aware, PSR-18 compatible.

700+ endpoints. Pure PSR-18 / PSR-17 — bring your own HTTP client (Guzzle, Symfony, Buzz, …) or let auto-discovery pick one. Built-in retry on 408/409/429/5xx with exponential backoff. Stainless-style error hierarchy (AuthenticationError / RateLimitError / BadRequestError / …). PHP 8.1+.

Install

composer require astroway/sdk

The SDK requires a PSR-18 HTTP client. If you don't already have one, the simplest path is:

composer require guzzlehttp/guzzle nyholm/psr7

Already using Symfony's HTTP client, Buzz, or another PSR-18 implementation? php-http/discovery (a transitive dep of this SDK) auto-finds it. Or pass it explicitly:

$aw = new Astroway([
    'apiKey'        => getenv('ASTROWAY_API_KEY'),
    'httpClient'    => $myPsr18Client,    // any Psr\Http\Client\ClientInterface
    'requestFactory'=> $myRequestFactory, // optional Psr\Http\Message\RequestFactoryInterface
    'streamFactory' => $myStreamFactory,  // optional Psr\Http\Message\StreamFactoryInterface
]);

Get an API key at https://api.astroway.info/dashboard/sign-up — 10 000 credits/month free, no card required. Each endpoint costs 5–500 credits depending on what it computes (pricing).

Quick start

<?php

use Astroway\Astroway;

$aw = new Astroway(['apiKey' => getenv('ASTROWAY_API_KEY')]);

$chart = $aw->chart()->compute([
    'date' => '1990-07-14',
    'time' => '14:30:00',
    'timezoneOffset' => 3,
    'latitude' => 50.45,
    'longitude' => 30.52,
    'houseSystem' => 'P',
]);

$asc = $chart['angles']['asc'];
printf("ASC: %s %.2f°\n", $asc['sign'], $asc['degree']);

The SDK exposes 103 typed service namespaces / 623 methods auto-generated from the OpenAPI spec — $aw->synastry()->aspectGrid([...]), $aw->bazi()->dayMaster([...]), $aw->vedic()->dashasVimshottariMaha([...]), etc. The { ok, data, error } envelope is unwrapped for you. Service objects are memoized per Astroway instance.

Need a raw response or an endpoint not yet covered by services? $aw->request('POST', $path, ['json' => $body]) and $aw->post($path, body: …) remain available as escape hatches.

Common workflows

Synastry

$result = $aw->synastry()->compute([
    'chart1' => ['date' => '1990-07-14', 'time' => '14:30:00', 'timezoneOffset' => 3, 'latitude' => 50.45, 'longitude' => 30.52],
    'chart2' => ['date' => '1992-03-22', 'time' => '09:15:00', 'timezoneOffset' => 2, 'latitude' => 48.85, 'longitude' => 2.35],
]);
echo "Score: {$result['compatibility']['score']}/100 ({$result['compatibility']['label']})\n";

Transits to natal

$transits = $aw->transits()->compute([
    'date' => '1990-07-14', 'time' => '14:30:00', 'timezoneOffset' => 3, 'latitude' => 50.45, 'longitude' => 30.52,
    'targetDate' => '2027-01-01',
]);

Vedic Vimshottari Mahadasha

$dasha = $aw->vedic()->dashasVimshottariMaha([
    'date' => '1985-07-22', 'time' => '06:45:00', 'timezoneOffset' => 5.5,
    'latitude' => 19.07, 'longitude' => 72.87,
]);

Tarot daily card

$card = $aw->tarot()->riderWaiteDaily(['seed' => 42]);

Human Design

$hd = $aw->humanDesign()->compute([
    'date' => '1990-07-14', 'time' => '14:30:00', 'timezoneOffset' => 3, 'latitude' => 50.45, 'longitude' => 30.52,
]);
echo "{$hd['type']} — {$hd['strategy']} — {$hd['authority']}\n";

Error handling

The SDK throws typed subclasses of Astroway\Errors\ApiError. Catch order matters — most specific first:

use Astroway\Errors\ApiError;
use Astroway\Errors\AuthenticationError;
use Astroway\Errors\BadRequestError;
use Astroway\Errors\RateLimitError;

try {
    $aw->post('/chart', body: $body);
} catch (RateLimitError $e) {
    sleep($e->retryAfterSeconds ?? 60);
    // retry once...
} catch (AuthenticationError $e) {
    throw new RuntimeException('Rotate your AstroWay API key');
} catch (BadRequestError $e) {
    fwrite(STDERR, 'Validation failed: ' . json_encode($e->body) . PHP_EOL);
} catch (ApiError $e) {
    fwrite(STDERR, sprintf("API error %d (%s): %s [request_id=%s]\n", $e->status, $e->errorCode, $e->getMessage(), $e->requestId));
}

Full hierarchy under Astroway\Errors:

• ApiError (extends \RuntimeException)
  • APIConnectionError
    • APITimeoutError
  • BadRequestError (400)
  • AuthenticationError (401)
  • PermissionDeniedError (403)
  • NotFoundError (404)
  • UnprocessableEntityError (422)
  • RateLimitError (429) — carries retryAfterSeconds
  • InternalServerError (5xx)

errorCode (not code) is the AstroWay-specific error code property. The base \Exception::$code would conflict.

Configuration

$aw = new Astroway([
    'apiKey'         => 'aw_live_...',               // required
    'baseUrl'        => 'https://api.astroway.info/v1', // override for staging / self-hosted
    'authScheme'     => 'header',                    // 'header' (X-Api-Key, default) or 'bearer' (Authorization: Bearer)
    'retry'          => [
        'maxRetries'        => 2,                    // total attempts = 1 + maxRetries
        'baseDelayMs'       => 250,
        'maxDelayMs'        => 30_000,
        'retryableStatuses' => [408, 409, 429, 500, 502, 503, 504],
    ],
    'defaultHeaders' => ['X-Trace-Id' => '...'],
    'httpClient'     => null,    // any PSR-18 ClientInterface (auto-discovered if omitted)
    'requestFactory' => null,    // any PSR-17 RequestFactoryInterface (auto-discovered)
    'streamFactory'  => null,    // any PSR-17 StreamFactoryInterface (auto-discovered)
]);

Default retry honors Retry-After (seconds or HTTP-date) on 429 responses.

Set retry: ['maxRetries' => 0] to disable retries entirely.

Authentication

Two equivalent auth schemes — pick whichever your stack prefers:

• Header (default): X-Api-Key: aw_live_... — same convention as curl/Postman examples.
• Bearer: Authorization: Bearer aw_live_... — same convention as Stripe/OpenAI/Anthropic SDKs.

Set via 'authScheme' => 'bearer' in the constructor options.

Privacy

The SDK does not phone home. There is no telemetry, no analytics, no usage reporting. The only network traffic the SDK originates is the AstroWay API calls you ask it to make.

Outgoing requests carry two identifying headers so the AstroWay backend can distinguish SDK traffic from raw HTTP traffic in its own logs:

• User-Agent: astroway-sdk-php/<version> (PHP/<php-version>; <os>)
• X-Astroway-Channel: sdk-php

Neither carries a session ID, machine fingerprint, or anything personal.

Stability

Since 1.0.0 (2026-05-11) this package follows strict SemVer:

• Public Astroway surface stable inside 1.x — constructor $options shape, request/get/post/put/delete/concurrent methods, 100+ namespace accessors (chart(), synastry(), ...), ApiError public properties (status/errorCode/requestId/creditsRemaining/retryAfterSeconds/body). Removing or renaming any of them requires 2.0.0 with deprecation period.
• Error subclass tree stable inside 1.x — 9 classified *Error subtypes are part of the contract.
• Body shape stable inside 1.minor. Tightening (constraints, enums) ships in patches; new required keys require a minor bump.
• API version vs SDK version are independent. SDK 1.x follows its own semver; the API itself sits at /v1/.
• PHP 8.2+ required since 1.0.0. Need 8.1? Stay on 0.x (will receive critical security patches).

Migration from 0.1.0-alpha.x / 0.1.0-beta.x / 0.1.0-rc.1 to 0.1.0

0.1.0 freezes the public surface. No breaking changes vs 0.1.0-rc.1 — every export, namespace, error class, and option added across alphas / betas / RC ships unchanged. The freeze means future 0.1.x patches will not narrow types, remove classes, or rename methods; that level of change requires a 0.2.0 minor bump.

A surface-lock test suite (tests/SurfaceLockTest.php) uses Reflection to assert public method signatures, error subclass tree, and namespace accessor presence — any future PR that breaks the public surface fails CI before reaching Packagist. phpstan analyse is also clean at level 6.

Links

• 📦 Packagist: https://packagist.org/packages/astroway/sdk
• 📘 API docs: https://api.astroway.info/docs/api/
• 🔑 Sign up & dashboard: https://api.astroway.info/dashboard/
• 💰 Pricing: https://api.astroway.info/pricing/
• 🟦 TypeScript SDK: @astroway/sdk
• 🐍 Python SDK: astroway
• 🤖 MCP server: @astroway/mcp
• 🌐 Website: https://astroway.info

License

MIT — see LICENSE.