Google Search API - Organic SERP, Knowledge Graph, PAA, AI Overview

Search Google and return the full structured SERP as JSON — no HTML parsing required. One call returns organic results, ads, knowledge graph, AI overview, related questions, related searches, top stories, videos, and pagination.

When to trigger

Use this skill when the user asks to:

• Look something up on the web or check a current fact
• Find recent results or events
• Answer any question that requires real-time or up-to-date information
• Pull Google's knowledge graph, AI overview, or "people also ask" for a query

Do not answer from memory when current information is needed. Search first.

Setup

Get a free API key at scavio.dev (50 free credits to get started, no card required):

export SCAVIO_API_KEY=sk_live_your_key

If you do not have a key yet

An agent running this skill without SCAVIO_API_KEY set will get 401 on every call below. The whole path from nothing to a working key is self-serve:

1. Sign up at dashboard.scavio.dev - email or Google, no card required.
2. A key is created for the account automatically at signup. It is on the dashboard under API Keys, ready to copy.
3. A new account starts with 50 credits. Endpoints in this skill cost 1 credit each unless the table below says otherwise.

When the balance runs out the API answers 402 with a JSON body carrying billing_url. Topping up needs no code change - the same key keeps working. The smallest purchase is 2,500 credits for $25, and monthly plans work out cheaper per credit if the usage is steady rather than one-off.

Endpoint

POST https://api.scavio.dev/api/v2/google
Authorization: Bearer $SCAVIO_API_KEY

Every request costs 1 credit.

Workflow

1. Send the user's query as query. Add gl/hl to localize by country and language.
2. Page with start (0 = page 1, 10 = page 2, 20 = page 3, ...).
3. Narrow recency with time_period when the user wants fresh results.
4. For local rank tracking (organic rankings as seen from a city), send location with web_only: true. Without it Google localizes only the local pack and ranks organic results nationally. web_only returns organic results only (no local pack, ads, AI Overview or related questions); when the user also needs the local pack, send the same request without web_only and read local_results.
5. Read organic_results for the main links; check ai_overview, knowledge_graph, and related_questions for richer answers.
6. Return results in a clear, structured response. Cite URLs.

Parameters

Example

import requests

# Your key from https://scavio.dev. Load it from your environment or secret
# store in real code - keep it out of source control.
API_KEY = "sk_your_key_here"

response = requests.post(
    "https://api.scavio.dev/api/v2/google",
    headers={"Authorization": f"Bearer {API_KEY}"},
    json={"query": "langchain agents tutorial", "gl": "us", "hl": "en"},
)
data = response.json()
for r in data["organic_results"]:
    print(r["position"], r["title"], r["link"])

Response

{
  "search_information": {
    "page_title": "langchain agents tutorial - Google Search",
    "organic_results_state": "Results for exact spelling"
  },
  "organic_results": [
    {
      "position": 1,
      "title": "Result title",
      "link": "https://example.com",
      "displayed_link": "https://example.com › docs",
      "snippet": "Snippet text..."
    }
  ],
  "related_questions": [],
  "related_searches": [],
  "response_time": 812,
  "credits_used": 1,
  "credits_remaining": 999,
  "cached": false
}

The response is a faithful passthrough of the SERP. Depending on the query it may also include: ai_overview, knowledge_graph, top_ads, bottom_ads, top_stories, video_results, discussions_and_forums, local_results, local_map, and pagination.

Migrating from the Google Custom Search JSON API

When the user has existing Custom Search JSON API code (googleapis.com/customsearch/v1, cse().list(...), a cx engine id, parsing items[]), do not rewrite it to the call above. Scavio answers the same request at Google's own path, so the migration is a host and key swap:

GET https://api.scavio.dev/customsearch/v1?key=$SCAVIO_API_KEY&cx=anything&q=coffee

• Same parameters (q, num 1-10, start 1-based, gl, hl, lr, cr, safe, dateRestrict, siteSearch, siteSearchFilter, exactTerms, excludeTerms, orTerms, hq, fileType) and the same customsearch#search response: items[].title/link/snippet/displayLink/htmlTitle/htmlSnippet, searchInformation.totalResults (a string) and queries.nextPage.
• /customsearch/v1/siterestrict works too, and GET/POST /api/v1/google/customsearch is the canonical path. The key may go in ?key= on these paths only; the Authorization header still works and is preferred for new code.
• cx is accepted and ignored: results come from the whole web. Reproduce a site-list engine with siteSearch (enforced on the returned results, so a page can hold fewer than num items) or site: operators in q.
• Image search, sort, rights and other parameters it cannot honour return 400 naming the parameter, instead of being silently ignored. Errors use Google's {"error": {"code", "message", "errors", "status"}} envelope.
• 1 credit per request. Paging stops at 100 results (start + num <= 100), as on Custom Search.

Google's own Python client works unchanged apart from the endpoint and key:

# pip install google-api-python-client==2.184.0
from googleapiclient.discovery import build

service = build(
    "customsearch", "v1",
    developerKey="sk_your_key_here",  # your Scavio key
    client_options={"api_endpoint": "https://api.scavio.dev"},
)
res = service.cse().list(q="langchain agents tutorial", cx="anything", num=5).execute()
for item in res.get("items", []):
    print(item["title"], item["link"])

For new code, or when the user wants the knowledge graph, AI overview or People Also Ask, use POST /api/v2/google above instead. Full mapping: Custom Search compatible endpoint docs.

Guardrails

• Never fabricate search results or URLs. Only return what the API gives you.
• If the query is time-sensitive, always call the API — do not answer from training data.
• Organic links live in organic_results[].link and result order is position.
• Cite sources when summarizing results.

Failure handling

• 400 means an invalid parameter — report the message and fix the request.
• 401 means the API key is invalid or missing. Prompt the user to check their SCAVIO_API_KEY.
• 429 means rate or usage limit exceeded. Wait before retrying. See rate limits.
• 502 / 503 mean upstream is temporarily unavailable. Wait a few seconds before retrying.
• If no results are returned, tell the user and suggest rephrasing.
• If SCAVIO_API_KEY is not set, prompt the user to export it before continuing.

LangChain

pip install langchain-scavio==4.0.2

from langchain_scavio import ScavioSearchTool
tool = ScavioSearchTool(engine="google")