ChatGPT and Claude can tell you what a fair price is; TinyAgent is the AI that searches Marketplace and checks. Describe the item, budget and area, and it returns matching listings as a table, without messaging anyone.
Free to start. $8 in Wallet funds on us, no card needed.
Prompt
Search Facebook Marketplace near San Francisco for a standing desk under $200. Return the first 10 listings with title, price, location and link. Pick the 3 best value listings and say why in one sentence each. Do not message any seller and do not make offers.
ChatGPT or Claude
Install the TinyFish plugin in ChatGPT or Claude, sign in to Facebook once through TinyProfiles, then describe what you want.
Example instruction
Use TinyFish to search Facebook Marketplace within 20 miles of Austin for a used road bike, size 54 or 56, under $600. Give me the 10 newest listings with price and link. Do not message anyone.
TinyAgent API
Call TinyAgent with your searches each day and get new listings back as JSON, ready for your own sheet or alerts.
Search Marketplace from one call:
from tinyfish import TinyFish, EventType, RunStatus
client = TinyFish()
with client.agent.stream(
url="https://www.facebook.com/marketplace",
goal="""Search Facebook Marketplace near San Francisco for "standing desk" under $200. Return the first 10 listings as JSON with title, price, location and url. Do not message sellers or make offers.""",
use_profile=True,
) as stream:
for event in stream:
if event.type == EventType.COMPLETE and event.status == RunStatus.COMPLETED:
print("Result:", event.result_json)Runs are billed at $0.016 per agent step.Read the docs
Tell TinyAgent the item, your budget, your area and the condition you want. It searches Marketplace and returns a table with each listing's title, price, location and link, so you can scan every option in one place.
See TinyAgentSearch vehicles or rentals with the filters you need, such as price range and location. TinyAgent lines up the results side by side, so you can compare them before you contact anyone.
See TinyAgentTinyAgent opens the top listings, reads each description and returns a short ranked list with a one-line reason for every pick. In the run above, it opened 3 standing desks and ranked them from $50 to $100.
See TinyAgentDescribe an item you want to sell and TinyAgent fills in the Marketplace listing form for you. It stops before publishing, so you can check the details and post it yourself.
See TinyAgentYes, with TinyAgent and your own Facebook account. It searches Marketplace in a real browser signed in as you and returns matching listings as a table.
No. Ask it not to message or make offers and it only searches and reports. Contacting sellers stays with you.
Yes. Marketplace search results need a signed-in Facebook account. Sign in once through a TinyProfiles browser profile and TinyAgent reuses that session.
Yes. Run the same search on a schedule and compare the results, or set it up with TinyMonitor.
It can fill in a listing form for your own items if you ask, and stop before publishing so you can check it.
Yes. In ChatGPT and Claude you can schedule the task to run on a timer. From code, call TinyAgent once per row from a loop or a queue; accounts start at 2 concurrent runs.
TinyAgent is billed from your Wallet at $0.016 per agent step, not per run. A typical Marketplace search in our runs takes around 19 steps, about 30 cents. New accounts get $8 in Wallet funds. Accounts start at 2 concurrent runs.
Free to start. $8 in Wallet funds on us, no card needed.
