# AgentBuyPhone.com - Full Index

> Independent index of phone sellers and marketplaces that publish llms.txt files or public API documentation. Listings are not endorsements, partnerships, or integrations; AgentBuyPhone has no affiliation with any company listed.

## About This Index
AgentBuyPhone.com lists phone sources that publish machine-readable resources AI agents can read: llms.txt files or public API documentation. A listing means the resource was publicly reachable on the date checked. Descriptions summarize what each company says about itself.

## Listed Sources (last checked 2026-10-08)

| Provider | Category | Resource Type | Resource Link |
| :--- | :--- | :--- | :--- |
| Back Market | Refurbished phones and electronics marketplace | API documentation (sellers) | https://api.backmarket.dev/ |

### Back Market
* **Summary:** Marketplace for refurbished phones and electronics. Its published API is for sellers on the platform (listings, orders, trade-ins, returns), not for buyers.
* **Site:** https://www.backmarket.com/

## Checks Before Buying a Used Phone
* **Device history:** check the IMEI or serial number against lost, stolen, and blacklist databases.
* **Carrier lock:** confirm the phone is unlocked, or locked to the carrier you need.
* **Business devices:** if the phone will be managed by a company, confirm it can be enrolled in your device management system.

## Not Yet Listed
No public llms.txt file or public API was found for these sites when last reviewed. Corrections welcome.
* SellCell (price comparison for selling used phones; reviewed October 2026)
* Swappa, Gazelle (reviewed March 2026)

## About AgentBuyPhone
* **Operator:** Sunkings LLC
* **Contact:** agentbuynetwork@proton.me
* **Network:** https://agentbuynetwork.com/
* **Last Updated:** 2026-10-08
* **Disclaimer:** Information and research only, provided "as is." Company names and trademarks belong to their owners. Listing a company does not mean it endorses, partners with, or is affiliated with AgentBuyPhone, AgentBuyNetwork, or Sunkings LLC. Verify all information independently before relying on it.