B

StableFeedback

Preview responses and set spending limits for this service through use.mpp.land Free budget controls, response samples, and reliability routing.

Compliance Checks

All paid ops declare 402 response MUST 10pt
All x-payment-info valid MUST 10pt
Challenge has Cache-Control: no-store MUST 5pt
Challenge digest on POST SHOULD 3pt
Challenge has expires SHOULD 3pt
Challenge has Problem Details SHOULD 2pt
Challenge has required params MUST 5pt
Challenge has WWW-Authenticate MUST 5pt
Challenge returns 402 MUST 10pt
Correct Content-Type MUST 5pt
Has Cache-Control on discovery SHOULD 5pt
Has input schemas SHOULD 5pt
Has llms.txt SHOULD 5pt
Has /openapi.json at root MUST 10pt
Has required top-level fields MUST 10pt
Served over HTTPS MUST 10pt
Uses standard categories SHOULD 2pt
1 issue
  • POST endpoint challenge missing digest parameter (SHOULD per spec)

Paid Operations (3)

POST /api/namespace/register dynamic
Register a feedback namespace for your product ($1)
Amount
map[amount:1 currency:USD mode:fixed]
Currency
-
Method
Intent
-
402 Declared
Yes
Non-standard x-payment-info fields: price: map[amount:1 currency:USD mode:fixed] protocols: [map[x402:map[]] map[mpp:map[currency:0x20c0000000000000000000000000000000000001 intent:charge method:tempo]]]

Input Schema

FieldTypeRequiredDescription
description string No
namespace string Yes
webhookUrl string (uri) No

Response Schema (200)

FieldTypeDescription
createdAt string -
existingFeedbackLinked number -
namespace string -
ownerWallet string -
POST /api/namespace/feedback dynamic
Submit feedback to any namespace ($0.01) — namespace does not need to exist
Amount
map[amount:0.01 currency:USD mode:fixed]
Currency
-
Method
Intent
-
402 Declared
Yes
Non-standard x-payment-info fields: price: map[amount:0.01 currency:USD mode:fixed] protocols: [map[x402:map[]] map[mpp:map[currency:0x20c0000000000000000000000000000000000001 intent:charge method:tempo]]]

Input Schema

FieldTypeRequiredDescription
actual string No
context string No
description string Yes
expected string No
metadata object No
namespace string Yes
severity string No
enum: low, medium, high, critical
steps array No
title string Yes
type string Yes
enum: bug, feature, feedback

Response Schema (200)

FieldTypeDescription
createdAt string -
id string -
namespace string -
registered boolean -
POST /api/namespace/resolve dynamic
Resolve feedback — reward amount is forwarded as USDC on Tempo to the submitter
Amount
map[currency:USD max:2 min:0 mode:dynamic]
Currency
-
Method
Intent
-
402 Declared
Yes
Non-standard x-payment-info fields: price: map[currency:USD max:2 min:0 mode:dynamic] protocols: [map[x402:map[]] map[mpp:map[currency:0x20c0000000000000000000000000000000000001 intent:charge method:tempo]]]

Input Schema

FieldTypeRequiredDescription
feedbackId string Yes
message string No
rewardAmount string No

Response Schema (200)

FieldTypeDescription
id string -
message string -
namespace string -
resolved boolean -
resolvedAt string -
resolvedBy string -
reward object -

Payment Methods

Methods
tempo (from challenge)
Intents
charge (from challenge)
Currencies (discovery)
-
Currency (challenge)
USDC.e on Tempo (Tempo)
Multiple Challenges
No

Recipients

  • 0x325bdF6F7efAB24a2210c48c1b64cAb2eAe1d430
Per-endpoint breakdown
POST /api/namespace/feedback
0x325bdF6F7efAB24a2210c48c1b64cAb2eAe1d430
POST /api/namespace/register
0x325bdF6F7efAB24a2210c48c1b64cAb2eAe1d430

Security

TLS Version
TLSv1.3
Challenge ID Unique
Yes
Challenge ID Length
43
Digest Binding
-

Uptime

Discovery
Reachable (300ms)
Challenge
Reachable (1067ms)
Last Checked

Schema Completeness

Paid Operations
3
With Input Schema
3
With Description
3

Documentation

Homepage
-
API Reference
-
llms.txt
-

Discovery

OpenAPI URL
https://stablefeedback.dev/openapi.json
OpenAPI Version
3.1.0
Service Version
0.1.0
Document Size
9457 bytes
Document Hash
9ebcb1527636c65787f4bf9b42747cedb764b3445014b987efb640a606f8ffea

Version History (2 snapshots)

Scan snapshots
Date Grade Score Response Status
2026-04-06 B 79% 332ms Up
2026-04-07 B 79% 994ms Up