LangChain

The change is a few lines of Python

GoogleSearchAPIWrapper builds Google's own client and has no setting for the address. SearxSearchWrapper reads searx_host or SEARX_HOST and sends a GET to that address with q and format=json, adding no path. SpecStream answers it, so the address ends in /search and the key goes in it.

# Before
from langchain_community.utilities import GoogleSearchAPIWrapper
search = GoogleSearchAPIWrapper()  # GOOGLE_API_KEY, GOOGLE_CSE_ID

# After
from langchain_community.utilities import SearxSearchWrapper
search = SearxSearchWrapper(searx_host="https://api.specstream.ai/searxng/YOUR_SPECSTREAM_KEY/search")

print(search.run("open source vector databases"))
for result in search.results("open source vector databases", num_results=5):
    print(result["title"], result["link"], result["snippet"])

run() returns a text answer and results() returns title, link and snippet for each result, the same three fields GoogleSearchAPIWrapper.results() gave your chain. The SearxSearchResults tool wraps it for an agent.

Code that calls Google's address changes one host

If your code calls the Custom Search JSON API itself, keep the path, the parameters and the parser. Change the host and the key. cx is accepted and not used, and the reply is Google's JSON: items[] with title, link and snippet, searchInformation and queries.nextPage.

import os, requests

BASE = "https://api.specstream.ai"  # was https://www.googleapis.com

reply = requests.get(
    f"{BASE}/customsearch/v1",
    params={"key": os.environ["SPECSTREAM_API_KEY"], "cx": "any", "q": "open source vector databases", "num": 10},
).json()

for item in reply["items"]:
    print(item["title"], item["link"], item["snippet"])

What you see when the Google key fails

The wrapper sends each search through cse.list(...).execute(), so a key Google refuses raises the HTTP error of Google's client inside your chain or agent. Google closed the API to new customers, so a new project gets no key for GOOGLE_API_KEY. SearxSearchWrapper on SpecStream needs no Google key at all.

$5 per 1,000 searches, with no daily limit

A search of up to 10 results costs $0.005, and each started block of 10 more results adds $0.006. There is no monthly plan and no daily limit. Credit you buy never expires, and a new account starts with $10 of credit, which covers 2,000 searches.

The most accurate web search API in the world

On SimpleQA Verified the SpecStream Search API scores 97.9 F-score on all 1,000 official questions, 978 of them correct. On WideSearch it scores 64.0 item F1 and 43.4 row F1 on all 200 official tasks. The Extract API scores 0.908 F1 on WCXB. Every score and its method is on the benchmarks page.

About one second a search, measured under load

The SearXNG and Google routes runs on the fast search. On November 9, 2026 production took 1, 5, 10 and 20 fast searches a second and answered 718 of 720. The median was 0.82 s at 1 search a second and 1.07 s at 20 a second, and the 95th percentile stayed between 1.09 and 1.73 s. One account can send up to 8,800 searches a minute; a call over that is answered with Retry-After and is not charged.

You decide what is kept, on each key

Give your LangChain app a key with zero_retention and a search made with it keeps no request text and no answer after the reply. The charge keeps the account, the key, the request ID, the price and the time. spend_cap_cents is the most the key can spend.

curl -X POST https://api.specstream.ai/v1/account/keys \
  -H "Authorization: Bearer $SPECSTREAM_API_KEY" -H "Content-Type: application/json" \
  -d '{"name": "production", "scopes": ["account:read", "finds:spend"], "spend_cap_cents": 500000, "zero_retention": true}'

Search, pages and rows on one key

The same key reads up to 20 pages or documents a call with the Extract API at $0.80 per 1,000 pages, and a page with no text is not charged. Deep Search takes a request in plain words and returns every match on the live web as structured rows, at 5¢, 15¢ or $1 a row, with a source URL on every value. The most a run can cost is quoted before it starts.

GoogleSearchAPIWrapper, until January 1, 2027

Existing customers can keep the wrapper until Google ends the API: $5 per 1,000 queries after 100 free a day, up to 10,000 a day. A new project gets no key. SpecStream costs the same $5 per 1,000 with no daily limit.

Vertex AI Search

Google's named alternative, for searching up to 50 domains, at $1.50 per 1,000 queries on Standard and $4.00 on Enterprise. For full web search Google asks you to contact it. SearxSearchWrapper on SpecStream searches the whole live web.

Tavily

A search API billed in credits: $0.008 a credit on pay as you go, 1 credit for a basic search and 2 for an advanced one, with 1,000 free credits a month. The community wrapper fixes its address at https://api.tavily.com. SpecStream searches at $0.005 a call.

Brave Search API

A search API on Brave's own index at $5 per 1,000 requests, with $5 in free credits every month and up to 50 queries per second. SpecStream costs the same $5 per 1,000 and scores 97.9 F-score on SimpleQA Verified.

Serper

Google results as JSON, sold in credit packs at $1.00 per 1,000 in the pack of 50,000, valid for 6 months. GoogleSerperAPIWrapper fixes its address at https://google.serper.dev. SpecStream credit never expires.