neuro-san-studio

The change is one variable

The google_search tool takes its address from the agent's google_url argument, then from GOOGLE_SEARCH_URL, then from Google's default, and sends the query string to it with a GET. So the variable holds the whole endpoint, with /customsearch/v1 at the end.

# neuro-san-studio environment
GOOGLE_SEARCH_URL=https://api.specstream.ai/customsearch/v1
GOOGLE_SEARCH_API_KEY=<YOUR_SPECSTREAM_KEY>
GOOGLE_SEARCH_CSE_ID=<any value>

SpecStream accepts cx with any value and does not use it. This is the call the tool then sends, with q, key, cx and any Google parameter the agent adds:

curl "https://api.specstream.ai/customsearch/v1?q=open+source+vector+databases&key=$SPECSTREAM_API_KEY&cx=any&num=10"

The same JSON, so the tool's parser reads it

The tool reads items[] and takes title, link and snippet from each. SpecStream answers in Google's shape: kind customsearch#search, items[] with those fields and displayLink, searchInformation.totalResults and queries.nextPage. The same call from Python:

import os, requests

reply = requests.get(
    "https://api.specstream.ai/customsearch/v1",
    params={"q": "open source vector databases", "key": os.environ["SPECSTREAM_API_KEY"], "cx": "any", "num": 10},
    timeout=30,
).json()

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

The Google parameters the agent can pass

SpecStream reads q, num from 1 to 10, start, and the operators hq, exactTerms, orTerms, excludeTerms, siteSearch, siteSearchFilter, fileType, dateRestrict, lowRange and highRange. safe, gl, hl, lr, cr, sort, filter, googlehost, c2coff, rights and linkSite are accepted and not used. The route returns web results, so a call with searchType gets a 400; keep image search out of the agent's instructions.

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

A search of up to 10 results costs $0.005, and the tool never asks for more than 10 in one call. 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 Google route 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 the tool 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.

Google Custom Search, until January 1, 2027

Existing customers can keep Google's default address 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, behind the same neuro-san-studio setting.

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, called by POST at discoveryengine.googleapis.com with its own request. For full web search Google asks you to contact it. SpecStream searches the whole live web and answers the GET request neuro-san-studio already sends.

Serper

neuro-san-studio has a google_serper coded tool. Serper sells search in credit packs: $1.00 per 1,000 in the pack of 50,000, with credits valid for 6 months and 2,500 free queries to start. Moving to it means a new tool in each agent network. SpecStream credit never expires, and google_search stays as it is.