Discover / mpp.trychannel3.com

Channel3 MPP API

□ No challenge detected

Pay-per-request product search via the Machine Payments Protocol (MPP) on Tempo. No API key is required on this gateway — unpaid requests receive HTTP 402 with a Tempo payment challenge in WWW-Authenticate. Retry with ``Authorization: Payment`` after settling on-chain ($0.007000 per request).

MPP
Tempo
USDC

Challenge detected: 0 of the last 8 checks
Last checked: 17 Oct, 07:50 UTC
In our index since: 6 Oct 2026

Endpoint

curl -i https://mpp.trychannel3.com/v1/image-search
# 402 Payment Required: pay with a MPP client, then send the request again.

4 listed endpoints · on mppscan

Checks and payment terms on this page refer to the endpoint above. Other listed endpoints have not been checked individually.

Base URLhttps://mpp.trychannel3.com/v1

POST/searchNo price listed
POST/similarNo price listed
POST/image-searchNo price listed
POST/lookupNo price listed

A dash means the listing gives no price or method. Copy buttons copy the full URL.

Showing 4 of 4 listed endpoints.

Agents can find it through the Superstables MCP server and JSON API: GET /api/v1/services/mpp.trychannel3.com

Recent checks

6 Oct 2026One bar per check, showing up to 20 recent checks. Coloured bars show relative response time, with a minimum visible height; full-height grey bars mean no challenge was detected. “Challenge detected” means HTTP 402 or another detected payment-challenge signal.17 Oct 2026

All 8 checks

When (UTC)	Result	HTTP	Response
17 Oct, 07:50 UTC	No challenge detected	405	124ms
15 Oct, 21:29 UTC	No challenge detected	405	165ms
14 Oct, 14:31 UTC	No challenge detected	405	227ms
12 Oct, 10:53 UTC	No challenge detected	405	318ms
10 Oct, 15:44 UTC	No challenge detected	405	176ms
9 Oct, 09:34 UTC	No challenge detected	405	180ms
8 Oct, 03:32 UTC	No challenge detected	405	272ms
6 Oct, 21:30 UTC	No challenge detected	405	139ms

Questions

Did our last probe detect a payment challenge?

No. At our last probe on 17 Oct, 07:50 UTC, we detected no payment challenge.

What payment terms does Channel3 MPP API advertise?

The listing advertises MPP, Tempo and USDC. Check the seller's current payment challenge and authentication requirements before paying.

Where is Channel3 MPP API listed?

In mppscan. Superstables first indexed it on 6 Oct 2026.

Something wrong on this page? Tell us.