C
Clash of Coins API — MPP Grade C
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Free budget controls, response samples, and reliability routing.
On-chain Activity
6
Total txs
0
7d txs
$0.00
7d volume
$7.20
Total volume
2
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
2 issues
- POST endpoint challenge missing digest parameter (SHOULD per spec)
- Discovery amount 900.000000 != challenge amount 9000000 on POST /agentic/mpp/buy
Paid Operations (3)
POST /agentic/mpp/buy 900.000000 USDC
Buy an NFT sale through Tempo MPP
First call may return HTTP 402 with a Tempo payment challenge. Retry the same request with Authorization: Payment after MPP settlement.
- Amount
- 900.000000
- Currency
- USDC
- Method
- tempo
- Intent
- charge
- 402 Declared
- Yes
Non-standard x-payment-info fields:
asset: 0x20c000000000000000000000b9537d11c60e8b50 authHeader: Authorization: Payment network: tempo:4217 payTo: 0x8b29DABD6fBb5A09DAcbC7978eaed66A8540721d price: map[currency:USD max:900.000000 min:9.000000 mode:dynamic] protocols: [map[mpp:map[currency:0x20c000000000000000000000b9537d11c60e8b50 intent:purchase method:tempo/charge network:tempo:4217]]] purchaseStatusEndpointTemplate: /agentic/mpp/purchases/{paymentTx} quoteOptional: true quotePurpose: Use quote as a preflight to validate saleId, quantity, beneficiary, and exact payable amount before buy. rateLimits: map[paidRetriesPerPaymentPerMinute:10 unpaidPurchaseAttemptsPerIpPerMinute:30] recommendedClient: mppx retryBodyMode: reuse_original_json
Input Schema
| Field | Type | Required | Description |
|---|---|---|---|
| beneficiary | string | Yes | EVM address that will receive the minted NFT |
| quantity | integer | No |
default: 1
|
| saleId | integer | Yes |
POST /shop/mpp/buy 0.000000 USDC
Buy a Clash of Coins game shop item with Tempo MPP
Canonical payable MPP route for Clash of Coins shop purchases. Use the same JSON body on the unpaid challenge request and the paid retry.
- Amount
- 0.000000
- Currency
- USDC
- Method
- tempo
- Intent
- charge
- 402 Declared
- Yes
Non-standard x-payment-info fields:
asset: 0x20c000000000000000000000b9537d11c60e8b50 authHeader: Authorization: Payment network: tempo:4217 payTo: 0x8b29DABD6fBb5A09DAcbC7978eaed66A8540721d price: map[currency:USD max:0.000000 min:0.000000 mode:dynamic] protocols: [map[mpp:map[currency:0x20c000000000000000000000b9537d11c60e8b50 intent:purchase method:tempo/charge network:tempo:4217]]] purchaseStatusEndpointTemplate: /shop/mpp/purchases/{paymentReference} quoteOptional: true quotePurpose: Use quote as a preflight to validate recipient, cart contents, discount, and exact payable amount before buy. rateLimits: map[paidRetriesPerPaymentPerMinute:10 unpaidPurchaseAttemptsPerIpPerMinute:30] recommendedClient: mppx retryBodyMode: reuse_original_json
Input Schema
| Field | Type | Required | Description |
|---|---|---|---|
| address | string | No | Optional EVM address used to resolve and verify the recipient |
| itemId | string | No | Single-item shorthand for buying one catalog item |
| items | array | No | |
| nickname | string | No | Clash of Coins player nickname that should receive delivery |
| quantity | integer | No |
Quantity used together with itemId shorthand
default: 1
|
Response Schema (200)
{
"$ref": "#/components/schemas/ShopPurchaseStatusResponse"
}POST /agent-wallet/mpp/fund 900.000000 USDC
Fund an agent-wallet order through MPP
Pays the dedicated onchain agent wallet via the canonical mpp funding route. Create the order first, then submit paid funding for that orderId. Unpaid discovery probes may send an empty JSON body to receive a canonical payment challenge, but real funding and paid retries must include orderId. By default, the service auto-executes treasury sweep and purchase finalization after successful funding.
- Amount
- 900.000000
- Currency
- USDC
- Method
- tempo
- Intent
- charge
- 402 Declared
- Yes
Non-standard x-payment-info fields:
authMode: paid checkoutFlow: [POST /agent-wallet/orders /agent-wallet/mpp/fund] price: map[currency:USD max:900.000000 min:9.000000 mode:dynamic] protocols: [map[mpp:map[currency:0x20c000000000000000000000b9537d11c60e8b50 intent:purchase method:tempo/charge network:tempo:4217 recipient:0x93862e5b2b1fa10a01772e7e9ca7cdc7deb5ca25]]] quoteOptional: false retryHeader: Authorization: Payment
Input Schema
| Field | Type | Required | Description |
|---|---|---|---|
| orderId | string | Yes | Agent wallet order id returned by POST /agent-wallet/orders |
Response Schema (200)
| Field | Type | Description |
|---|---|---|
| autoExecution | object | - |
| error | string | - |
| mpp | object | - |
| order | object | - |
| paymentReference | string | - |
| paymentRetry | object | - |
| status | string | - |
Payment Methods
- Methods
- tempo
- Intents
- charge
- Currencies (discovery)
- USDC
- Currency (challenge)
- USDC.e on Tempo Mainnet Presto (Tempo Mainnet Presto)
- Multiple Challenges
- No
Recipients
- 0x8b29DABD6fBb5A09DAcbC7978eaed66A8540721d
Per-endpoint breakdown
- POST /agentic/mpp/buy
- 0x8b29DABD6fBb5A09DAcbC7978eaed66A8540721d
- POST /shop/mpp/buy
- 0x8b29DABD6fBb5A09DAcbC7978eaed66A8540721d
Security
- TLS Version
- TLSv1.3
- Challenge ID Unique
- Yes
- Challenge ID Length
- 43
- Digest Binding
- -
Uptime
- Discovery
- Reachable (863ms)
- Challenge
- Reachable (529ms)
- Last Checked
Schema Completeness
- Paid Operations
- 3
- With Input Schema
- 3
- With Description
- 3
Documentation
- Homepage
- -
- API Reference
- -
- llms.txt
- -
Discovery
- OpenAPI URL
- https://mpp.clashofcoins.com/openapi.json
- OpenAPI Version
- 3.1.0
- Service Version
- 1.0.0
- Document Size
- 44971 bytes
- Document Hash
- 20a80ee17832b344f56c30e7aee225207fee97deab7908f16e4f821a53e6064d
Version History (26 snapshots)
- document hash changed (no semantic differences detected)
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Grade: F (20%) → C (74%)
Grade: C (74%) → F (20%)
- document hash changed (no semantic differences detected)
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- price changed on POST /agent-wallet/mpp/fund: None → 900.000000
- payment method changed on POST /agent-wallet/mpp/fund: None → tempo
- price changed on POST /agentic/mpp/buy: None → 900.000000
- payment method changed on POST /agentic/mpp/buy: None → tempo
- price changed on POST /shop/mpp/buy: None → 0.000000
- payment method changed on POST /shop/mpp/buy: None → tempo
- 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: F (20%) → C (74%)
Grade: C (74%) → F (20%)
Grade: F (20%) → C (74%)
Grade: C (74%) → F (20%)
- document hash changed (no semantic differences detected)
- document hash changed (no semantic differences detected)
Grade: F (20%) → C (74%)
Grade: C (74%) → F (20%)
- document hash changed (no semantic differences detected)
Grade: F (20%) → C (74%)
Grade: C (74%) → F (20%)
- 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)
- document hash changed (no semantic differences detected)
- document hash changed (no semantic differences detected)
Grade: F (20%) → C (74%)
Grade: C (74%) → F (20%)
Grade: F (20%) → C (74%)
Grade: C (74%) → F (20%)
- document hash changed (no semantic differences detected)
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Grade: D (58%) → C (74%)
Grade: C (74%) → D (58%)
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Grade: D (58%) → C (74%)
Scan snapshots
| Date | Grade | Score | Response | Status |
|---|---|---|---|---|
| 2026-04-06 | D | 58% | 810ms | Up |
| 2026-04-07 | C | 74% | 767ms | Up |
| 2026-04-08 | C | 74% | 792ms | Up |
| 2026-04-09 | C | 74% | 790ms | Up |
| 2026-04-10 | C | 74% | 715ms | Up |
| 2026-04-11 | C | 74% | 677ms | Up |
| 2026-04-12 | C | 74% | 2180ms | Up |
| 2026-04-13 | C | 74% | 719ms | Up |
| 2026-04-14 | C | 74% | 997ms | Up |
| 2026-04-15 | C | 74% | 2657ms | Up |
| 2026-04-16 | C | 74% | 747ms | Up |
| 2026-04-17 | C | 74% | 770ms | Up |
| 2026-04-18 | C | 74% | 742ms | Up |
| 2026-04-19 | C | 74% | 734ms | Up |
| 2026-04-20 | C | 74% | 769ms | Up |
| 2026-04-21 | C | 74% | 707ms | Up |
| 2026-04-22 | C | 74% | 688ms | Up |
| 2026-04-23 | C | 74% | 754ms | Up |
| 2026-04-24 | C | 74% | 964ms | Up |
| 2026-04-25 | C | 74% | 955ms | Up |
| 2026-04-26 | C | 74% | 828ms | Up |
| 2026-04-27 | C | 74% | 975ms | Up |
| 2026-04-28 | C | 74% | 876ms | Up |
| 2026-04-29 | C | 74% | 982ms | Up |
| 2026-04-30 | C | 74% | 850ms | Up |
| 2026-05-01 | C | 74% | 895ms | Up |