Local AI Registry

Post Office

United States Postal Service

The public record of what AI assistants say about this business — the questions asked, the answers given, the omissions.

91 First St

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46/100
Mixed

Strong is 80 or better. Under 40 is weak. Half of post offices in the registry score 43–46.

Verified August 13, 2026

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United States Postal Service — Cambridge, Massachusetts
United States Postal Service · 91 First St

What AI says about United.1

We ask the assistants the questions customers actually ask, and record what comes back — quoted verbatim, dated, with the capture kept as evidence.

ChatGPT

Not named

Asked best post office in Cambridge

ChatGPT answered with other businesses. United States Postal Service was not mentioned.

Checked August 13, 2026

Gemini

Not named

Asked best post office in Cambridge

Gemini answered with other businesses. United States Postal Service was not mentioned.

Checked August 13, 2026

Named by 0 of 2 assistants as of August 13, 2026.

Reputation

What they’re known for.2

Drawn from live Google search results — the searches this business surfaces for when people look nearby. What its customers say is a separate read, below.

The United States Postal Service in Cambridge is best known for its efficient package tracking and zip code lookup services, alongside reliable passport appointment assistance. While some customer experiences vary, the core services remain strong.

USPS Tracking Made Easy
Track Your Package Seamlessly
Find Your Zip Code Quickly
Passport Appointment Assistance
Locate Your Nearest Mailbox

What people keep saying.3

Every review this business has, read and distilled — the mood, the consistent praise, and the recurring complaints.

Customers report a mix of experiences at this USPS location, with some praising helpful staff while others express frustration over poor service and inconsistent hours. The atmosphere can feel chaotic, especially when staff are unresponsive or dismissive during critical tasks like mailing important documents.

Consistently praised

Heidi's assistance with passport renewal
Helpful staff with international mail
Quick service during busy hours

Recurring complaints

Inconsistent opening hours
Rude and unhelpful staff
Long waits for service

The bottom line: This USPS location struggles with staff professionalism and reliability, impacting customer satisfaction despite some positive interactions.

United States Postal Service — Cambridge, Massachusetts
United States Postal Service · 91 First St

The score, explained

Why 46.4

Eight signals make up the AI Score. Weight is how much a signal counts; the score is how this entry measures on it. The same method for every business — never for sale.

Higher than 75% of post offices in the registry.

Scanned August 13, 2026

SignalScore /100
Retrieval groundingWhether you appear in the ranked results AI retrieves and cites — AI-Overview citations, organic top-10 for your money queries, and the Bing index ChatGPT leans on.
100
Off-property attestationVolume and consistency of what others say about you — YouTube mentions, branded web mentions, third-party “best-of” lists. The cause of retrievability.
39
AI visibilityWhether ChatGPT, Gemini, Perplexity, and AI Overviews name you — and for the right service.
0
Reviews & responseNot just star average — volume, velocity, the specificity of review language, and response cadence. Specific reviews are what AI quotes verbatim.
66
Backlink & citation authorityDomain authority and editorial quality of the sources that attest to you.
73
Google Business ProfileRequired and recommended fields; update cadence. The listing AI pulls from first.
84
Speed & mobileCore Web Vitals at the 75th percentile, on a real phone.
22
Content freshness & schemaCrawl recency, intent alignment, valid JSON-LD, canonicals.
37

What’s holding this entry back: ai visibility and speed & mobile — the signals dragging the score below where the rest of the record sits.

Read the full methodology
United States Postal Service — Cambridge, Massachusetts
United States Postal Service · 91 First St

The facts

Address91 First St, Cambridge, MA 02141, USA
Hours
Today (Thu) · 8:00 AM – 5:00 PM
  • Monday8:00 AM – 5:00 PM
  • Tuesday8:00 AM – 5:00 PM
  • Wednesday8:00 AM – 5:00 PM
  • Thursday8:00 AM – 5:00 PM
  • Friday8:00 AM – 5:00 PM
  • SaturdayClosed
  • SundayClosed
Map of the area around United States Postal Service
Open in Google Maps ↗© Mapbox © OpenStreetMap

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Questions

About United States Postal Service.

What are the operating hours for the United States Postal Service in Cambridge?

The business operates Monday through Friday from 8:00 AM to 5:00 PM and is closed on Saturday and Sunday.

Does the United States Postal Service in Cambridge accept reservations?

The business does not accept reservations for services.

What is the address of the United States Postal Service in Cambridge?

The business is located at 91 First St, Cambridge, MA 02141, USA.

Is there parking available at the United States Postal Service in Cambridge?

The business does not provide specific information about parking availability; customers may need to check local parking options.

What special features does the United States Postal Service in Cambridge offer?

The business is known for providing standard postal services, but customer experiences vary, with some reporting helpful staff while others have noted issues with service quality.

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What AI says about you today

The answer ChatGPT and Perplexity give when someone asks for the best in your category and city. Named, or left out.

Your fix list

Every problem we found, one row at a time, each with the written steps to do it yourself and an honest estimate of how long it takes. Tick them off as you go.

Correct the details AI reads

Hours, phone, email, booking link, socials and photos. You change them, they publish to this entry as soon as you save. Name, description, category, website, services and address need a paid plan.

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