B
agentfax — MPP Grade B
social
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On-chain Activity
14
Total txs
14
7d txs
$2.80
7d volume
$2.80
Total volume
8
Unique payers
0
Unique clients
7-day activity
▁▁▁▁▁█▁
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 (1)
POST /v1/fax dynamic
Send a fax
Send a fax to a phone number, priced per page. Pay with MPP (USDC.e on Tempo).
- Amount
- map[currency:USD max:20.00 min:0.20 mode:dynamic unit:page]
- Currency
- -
- Method
- Intent
- -
- 402 Declared
- Yes
Non-standard x-payment-info fields:
offers: [map[amount:200000 currency:0x20C000000000000000000000b9537d11c60E8b50 description:Per page — $0.20/page in USDC.e. Total billed = pages × this. intent:charge method:tempo]] price: map[currency:USD max:20.00 min:0.20 mode:dynamic unit:page] protocols: [map[mpp:map[amount:200000 asset:0x20C000000000000000000000b9537d11c60E8b50 chainId:4217 method:tempo network:tempo recipient:0xed5bd29c47d40a054591b18cc2142cea8ab7c18a]]]
Input Schema
| Field | Type | Required | Description |
|---|---|---|---|
| content_base64 | string | No | Base64-encoded document bytes |
| file_name | string | No | Optional filename for content_base64 |
| file_url | string | No | Public URL to a PDF (provide this or content_base64) |
| metadata | object | No | Optional, echoed back in the response |
| to | string | Yes | Destination fax number in E.164, e.g. +14155550123 |
Response Schema (200)
| Field | Type | Description |
|---|---|---|
| id | string | Fax job id (use with GET /v1/fax/{id}) |
| pages | integer | Number of pages sent |
| price_usd | string | Total charged, in USD |
| status | string | queued | sending | delivered | failed |
| to | string | Destination number, echoed back |
Payment Methods
- Methods
- tempo (from challenge)
- Intents
- charge (from challenge)
- Currencies (discovery)
- -
- Currency (challenge)
- USDC.e on Tempo Mainnet Presto (Tempo Mainnet Presto)
- Multiple Challenges
- No
Recipients
- 0xed5bd29c47d40a054591b18cc2142cea8ab7c18a
Per-endpoint breakdown
- POST /v1/fax
- 0xed5bd29c47d40a054591b18cc2142cea8ab7c18a
Security
- TLS Version
- TLSv1.3
- Challenge ID Unique
- Yes
- Challenge ID Length
- 43
- Digest Binding
- -
Uptime
- Discovery
- Reachable (1577ms)
- Challenge
- Reachable (234ms)
- Last Checked
Schema Completeness
- Paid Operations
- 1
- With Input Schema
- 1
- With Description
- 1
Documentation
- Homepage
- https://agentfax.val.run
- API Reference
- https://agentfax.val.run/v1/info
- llms.txt
- https://agentfax.val.run/llms.txt reachable
Discovery
- OpenAPI URL
- https://agentfax.val.run/openapi.json
- OpenAPI Version
- 3.1.0
- Service Version
- 1.0.0
- Document Size
- 2937 bytes
- Document Hash
- 0f2caff51f06b7139f6adf8d9379fe79d9b0ad77b409fac5c35ec10d8cb3d858
Version History (2 snapshots)
Scan snapshots
| Date | Grade | Score | Response | Status |
|---|---|---|---|---|
| 2026-05-29 | B | 82% | 1449ms | Up |
| 2026-05-30 | B | 82% | 1496ms | Up |