B
StableFeedback — MPP Grade B
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On-chain Activity
24
Total txs
0
7d txs
$0.00
7d volume
$6.12
Total volume
4
Unique payers
0
Unique clients
7-day activity
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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:0x20c000000000000000000000b9537d11c60e8b50 intent:charge method:tempo]]]
Input Schema
| Field | Type | Required | Description |
|---|---|---|---|
| description | string | No | |
| namespace | string | Yes | |
| webhookUrl | string (uri) | No |
Response Schema (200)
| Field | Type | Description |
|---|---|---|
| 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:0x20c000000000000000000000b9537d11c60e8b50 intent:charge method:tempo]]]
Input Schema
| Field | Type | Required | Description |
|---|---|---|---|
| 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)
| Field | Type | Description |
|---|---|---|
| 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:0x20c000000000000000000000b9537d11c60e8b50 intent:charge method:tempo]]]
Input Schema
| Field | Type | Required | Description |
|---|---|---|---|
| feedbackId | string | Yes | |
| message | string | No | |
| rewardAmount | string | No |
Response Schema (200)
| Field | Type | Description |
|---|---|---|
| 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
- -
- Challenge ID Length
- -
- Digest Binding
- -
Uptime
- Discovery
- Reachable (157ms)
- Challenge
- Reachable (816ms)
- 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
- b11d5e2206f018d655941e3290147b72b1c0dd09b243bd9153a0a9654cb8f8a0
Version History (23 snapshots)
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Grade: C (64%) → B (79%)
- document hash changed (no semantic differences detected)
Grade: B (79%) → C (64%)
- document hash changed (no semantic differences detected)
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- document hash changed (no semantic differences detected)
- document hash changed (no semantic differences detected)
- document hash changed (no semantic differences detected)
Grade: C (64%) → B (79%)
- document hash changed (no semantic differences detected)
Grade: B (79%) → C (64%)
- document hash changed (no semantic differences detected)
Grade: C (64%) → B (79%)
- document hash changed (no semantic differences detected)
Grade: B (79%) → C (64%)
- document hash changed (no semantic differences detected)
- document hash changed (no semantic differences detected)
- document hash changed (no semantic differences detected)
- document hash changed (no semantic differences detected)
- document hash changed (no semantic differences detected)
Grade: C (64%) → B (79%)
Grade: B (79%) → C (64%)
Grade: C (64%) → B (79%)
- document hash changed (no semantic differences detected)
Grade: B (79%) → C (64%)
- document hash changed (no semantic differences detected)
Grade: C (64%) → B (79%)
- document hash changed (no semantic differences detected)
Grade: B (79%) → C (64%)
- document hash changed (no semantic differences detected)
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- document hash changed (no semantic differences detected)
- document hash changed (no semantic differences detected)
- document hash changed (no semantic differences detected)
- document hash changed (no semantic differences detected)
- document hash changed (no semantic differences detected)
Grade: C (64%) → B (79%)
- document hash changed (no semantic differences detected)
Grade: B (79%) → C (64%)
- document hash changed (no semantic differences detected)
- document hash changed (no semantic differences detected)
Scan snapshots
| Date | Grade | Score | Response | Status |
|---|---|---|---|---|
| 2026-04-06 | B | 79% | 332ms | Up |
| 2026-04-07 | B | 79% | 994ms | Up |
| 2026-04-08 | B | 79% | 359ms | Up |
| 2026-04-09 | B | 79% | 191ms | Up |
| 2026-04-10 | B | 79% | 193ms | Up |
| 2026-04-11 | B | 79% | 339ms | Up |
| 2026-04-12 | B | 79% | 234ms | Up |
| 2026-04-13 | B | 79% | 369ms | Up |
| 2026-04-14 | B | 79% | 227ms | Up |
| 2026-04-15 | B | 79% | 1254ms | Up |
| 2026-04-16 | B | 79% | 219ms | Up |
| 2026-04-17 | B | 79% | 193ms | Up |
| 2026-04-18 | B | 79% | 273ms | Up |
| 2026-04-19 | B | 79% | 224ms | Up |
| 2026-04-20 | B | 79% | 315ms | Up |
| 2026-04-21 | C | 64% | 439ms | Up |
| 2026-04-22 | B | 79% | 1378ms | Up |
| 2026-04-23 | B | 79% | 222ms | Up |
| 2026-04-24 | B | 79% | 218ms | Up |
| 2026-04-25 | B | 79% | 779ms | Up |
| 2026-04-26 | B | 79% | 272ms | Up |
| 2026-04-27 | B | 79% | 292ms | Up |
| 2026-04-28 | B | 79% | 228ms | Up |