On-chain Activity

1 Total txs

0 7d txs

$0.00 7d volume

$0.01 Total volume

1 Unique payers

0 Unique clients

7-day activity ▁▁▁▁▁▁▁

Last tx 0xd26a387ca767b78cce9fa4b75021a49cbd72ed166d77d013b1fb88908cf7641d

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 /api/proxy 0.01 USDC.e

Proxy a request to a public API

Amount: 0.01 (raw 10000)
Currency: USDC.e
Method: tempo
Intent: charge
402 Declared: Yes

Input Schema

Field	Type	Required	Description
body	object	No
headers	object	No
method	string	No	default: `GET`
url	string	Yes

Payment Methods

Methods: tempo
Intents: charge
Currencies (discovery): USDC.e
Currency (challenge): USDC.e on Tempo Mainnet Presto (Tempo Mainnet Presto)
Multiple Challenges: No

Recipients

0x82b9087ac0c4618e1fba4e504ae815e68f3fc5b2

Per-endpoint breakdown

POST /api/proxy: 0x82b9087ac0c4618e1fba4e504ae815e68f3fc5b2

Security

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

Uptime

Discovery: Reachable (817ms)
Challenge: Reachable (2200ms)
Last Checked: 2026-05-27T22:42:57Z

Schema Completeness

Paid Operations: 1
With Input Schema: 1
With Description: 1

Documentation

Homepage: https://mpp-proxy-sergey.vercel.app
API Reference: https://mpp-proxy-sergey.vercel.app/openapi.json
llms.txt: -

Discovery

OpenAPI URL: https://mpp-proxy-sergey.vercel.app/openapi.json
OpenAPI Version: 3.1.0
Service Version: 1.0.0
Document Size: 1322 bytes
Document Hash: 5c04ccda2c7e19206190c2dfa6d9c63cf6c3e4402186546a49fe389b9536c09c

Version History (10 snapshots)

Scan snapshots

Date	Grade	Score	Response	Status
2026-05-18	A	90%	1338ms	Up
2026-05-19	A	90%	829ms	Up
2026-05-20	A	90%	831ms	Up
2026-05-21	A	90%	728ms	Up
2026-05-22	A	90%	797ms	Up
2026-05-23	A	90%	813ms	Up
2026-05-24	A	90%	732ms	Up
2026-05-25	A	90%	741ms	Up
2026-05-26	A	90%	275ms	Up
2026-05-27	A	90%	837ms	Up

MPP API Proxy — MPP Grade A