Maker field guide

Write and test your tag

Encode the permanent Item URL, verify it across phones and keep activation credentials off the tag.

7 min readReviewed September 27, 2026

Before you write

Create the Items in Maker NFC and download the production CSV or activation-card PDF.
Match each physical piece to the correct item_id and tag_url before encoding.
Keep the activation_key on the protected activation card. It must never be stored in the NFC tag or public QR code.
Write and test tags before permanently sealing them inside an object whenever possible.

Install the official NFC Tools app by Wakdev on an NFC-capable iPhone or Android device.
Open Write, add a URL / URI record and paste the exact tag_url exported by Maker NFC.
Confirm the byte count fits, choose Write and hold the tag still at the phone’s NFC antenna until completion.
Read the tag back immediately and confirm the URL is exact before moving to the next Item.

Tap-test with at least one current iPhone and one current Android phone.
Test before embedding, after embedding and after final finishing or packaging.
Confirm an unclaimed tag opens the correct Maker-branded activation screen without exposing owner data.
Use a second scan to catch swapped URLs, weak placement and accidental duplicate encoding.
Do not make a tag read-only until the complete product and activation-card pair has passed QA.

Maker note: If a tag is damaged or encoded incorrectly, Maker NFC can reissue its token without consuming a new Item Credit.

Before you write

Create the Items in Maker NFC and download the production CSV or activation-card PDF.

Match each physical piece to the correct item_id and tag_url before encoding.

Keep the activation_key on the protected activation card. It must never be stored in the NFC tag or public QR code.

Write and test tags before permanently sealing them inside an object whenever possible.

Write the URL with NFC Tools

Install the official NFC Tools app by Wakdev on an NFC-capable iPhone or Android device.

Open Write, add a URL / URI record and paste the exact tag_url exported by Maker NFC.

Confirm the byte count fits, choose Write and hold the tag still at the phone’s NFC antenna until completion.

Read the tag back immediately and confirm the URL is exact before moving to the next Item.

Production checks

Tap-test with at least one current iPhone and one current Android phone.

Test before embedding, after embedding and after final finishing or packaging.

Confirm an unclaimed tag opens the correct Maker-branded activation screen without exposing owner data.

Use a second scan to catch swapped URLs, weak placement and accidental duplicate encoding.

Do not make a tag read-only until the complete product and activation-card pair has passed QA.

Maker note: If a tag is damaged or encoded incorrectly, Maker NFC can reissue its token without consuming a new Item Credit.