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Data provider, Contact verification

Trestle

Check whether a US phone number is live and dial-worthy, find out who owns it, and grade whether a lead's name, phone, and email really belong to the same person, all inside Deep Research.

BYOK, runs on your own keyGet your key

How it works

Connect your Trestle key once in settings, then open SalesGPT and turn on Deep Research. Just ask in plain language and Deep Research reaches for Trestle automatically whenever a request needs US phone validation, caller identity, or contact-quality grading. You never touch a setting mid-chat.

What you can ask it to do

Know if a number is worth dialing

→“Is +1 415-555-0182 a live mobile or a dead landline before I add it to today's call list?”
→“Check the line type and activity score on these 40 numbers and tell me which ones are actually worth dialing.”

Find out who owns a number

→“Who does this number 646-555-0110 belong to? I got a missed call from a lead I can't place.”
→“Run a reverse lookup on these unknown numbers and tell me the name behind each one.”

Confirm caller identity before you call

→“Pull the caller ID on +1 312-555-0147 so I know who I'm reaching before I pick up the phone.”
→“Tell me the name and location tied to this number so I can personalize my opener.”

Spot fake or mismatched leads

→“Does the name, phone, and email on this Marcus Reed lead actually belong to the same person?”
→“Grade these webform submissions and flag any where the phone and email don't match the name.”

Clean your list before a campaign

→“Before I load these 200 contacts into a dialer, verify which phones are real and reachable in the US.”
→“Filter out any leads where the contact details don't line up as the same real person.”

Connect your key

1

Grab your API key from your Trestle dashboard.

2

Open Settings, Provider Keys in Fuse, find Trestle, and paste it in.

3

That is it. Deep Research starts using Trestle on your next request. Fuse encrypts the key and never exposes it to the agent.

Cost

Trestle runs on your own key, so it spends your Trestle credits, not Fuse credits.

Generated from the Fuse provider registry. Every connected provider gets a page like this.