com.x402supply/chess-eval
https://chess-eval.x402supply.com/mcpStockfish chess eval: best move, score, principal variation, multipv. $0.005/call via x402.
Reliability & health
Uptime and response time from our own unpaid probes, plus the reliability score built from them.
Uptime
100.0% avgResponse time
p50 191ms · p95 224msData table
| Bucket | Uptime | Probes | Response time |
|---|---|---|---|
| 8/15/2026, 4:00:00 AM | 100% | 1 | 156ms |
| 8/15/2026, 5:00:00 AM | 100% | 1 | 179ms |
| 8/15/2026, 7:00:00 AM | 100% | 1 | 193ms |
| 8/15/2026, 8:00:00 AM | 100% | 1 | 168ms |
| 8/15/2026, 9:00:00 AM | 100% | 1 | 183ms |
| 8/15/2026, 10:00:00 AM | 100% | 1 | 197ms |
| 8/15/2026, 11:00:00 AM | 100% | 1 | 178ms |
| 8/15/2026, 12:00:00 PM | 100% | 1 | 199ms |
| 8/15/2026, 1:00:00 PM | 100% | 1 | 183ms |
| 8/15/2026, 2:00:00 PM | 100% | 1 | 187ms |
| 8/15/2026, 4:00:00 PM | 100% | 1 | 203ms |
| 8/15/2026, 5:00:00 PM | 100% | 1 | 223ms |
| 8/15/2026, 6:00:00 PM | 100% | 1 | 171ms |
| 8/15/2026, 7:00:00 PM | 100% | 1 | 188ms |
| 8/15/2026, 8:00:00 PM | 100% | 1 | 178ms |
| 8/15/2026, 9:00:00 PM | 100% | 1 | 180ms |
| 8/15/2026, 11:00:00 PM | 100% | 1 | 201ms |
| 8/16/2026, 12:00:00 AM | 100% | 1 | 181ms |
| 8/16/2026, 1:00:00 AM | 100% | 1 | 196ms |
| 8/16/2026, 2:00:00 AM | 100% | 1 | 181ms |
| 8/16/2026, 3:00:00 AM | 100% | 1 | 175ms |
| 8/16/2026, 4:00:00 AM | 100% | 1 | 179ms |
| 8/16/2026, 6:00:00 AM | 100% | 1 | 201ms |
| 8/16/2026, 7:00:00 AM | 100% | 1 | 159ms |
| 8/16/2026, 8:00:00 AM | 100% | 1 | 22ms |
| 8/16/2026, 9:00:00 AM | 100% | 1 | 215ms |
| 8/16/2026, 10:00:00 AM | 100% | 1 | 165ms |
| 8/16/2026, 11:00:00 AM | 100% | 1 | 170ms |
| 8/16/2026, 1:00:00 PM | 100% | 1 | 172ms |
| 8/16/2026, 2:00:00 PM | 100% | 1 | 182ms |
| 8/16/2026, 3:00:00 PM | 100% | 1 | 206ms |
| 8/16/2026, 4:00:00 PM | 100% | 1 | 189ms |
| 8/16/2026, 5:00:00 PM | 100% | 1 | 205ms |
| 8/16/2026, 6:00:00 PM | 100% | 1 | 195ms |
| 8/16/2026, 8:00:00 PM | 100% | 1 | 209ms |
| 8/16/2026, 9:00:00 PM | 100% | 1 | 194ms |
| 8/16/2026, 10:00:00 PM | 100% | 1 | 177ms |
| 8/16/2026, 11:00:00 PM | 100% | 1 | 188ms |
| 8/17/2026, 12:00:00 AM | 100% | 1 | 197ms |
| 8/17/2026, 1:00:00 AM | 100% | 1 | 173ms |
| 8/17/2026, 3:00:00 AM | 100% | 1 | 191ms |
| 8/17/2026, 4:00:00 AM | 100% | 1 | 177ms |
| 8/17/2026, 5:00:00 AM | 100% | 1 | 193ms |
| 8/17/2026, 6:00:00 AM | 100% | 1 | 166ms |
| 8/17/2026, 7:00:00 AM | 100% | 1 | 213ms |
| 8/17/2026, 8:00:00 AM | 100% | 1 | 198ms |
| 8/17/2026, 10:00:00 AM | 100% | 1 | 177ms |
| 8/17/2026, 11:00:00 AM | 100% | 1 | 172ms |
| 8/17/2026, 12:00:00 PM | 100% | 1 | 204ms |
| 8/17/2026, 1:00:00 PM | 100% | 1 | 205ms |
| 8/17/2026, 2:00:00 PM | 100% | 1 | 178ms |
| 8/17/2026, 3:00:00 PM | 100% | 1 | 199ms |
| 8/17/2026, 5:00:00 PM | 100% | 1 | 203ms |
| 8/17/2026, 6:00:00 PM | 100% | 1 | 196ms |
| 8/17/2026, 7:00:00 PM | 100% | 1 | 181ms |
| 8/17/2026, 8:00:00 PM | 100% | 1 | 230ms |
| 8/17/2026, 9:00:00 PM | 100% | 1 | 165ms |
| 8/17/2026, 10:00:00 PM | 100% | 1 | 194ms |
| 8/18/2026, 12:00:00 AM | 100% | 1 | 201ms |
| 8/18/2026, 1:00:00 AM | 100% | 1 | 182ms |
| 8/18/2026, 2:00:00 AM | 100% | 1 | 190ms |
| 8/18/2026, 3:00:00 AM | 100% | 1 | 203ms |
| 8/18/2026, 4:00:00 AM | 100% | 1 | 167ms |
| 8/18/2026, 5:00:00 AM | 100% | 1 | 193ms |
| 8/18/2026, 7:00:00 AM | 100% | 1 | 196ms |
| 8/18/2026, 8:00:00 AM | 100% | 1 | 180ms |
| 8/18/2026, 9:00:00 AM | 100% | 1 | 197ms |
| 8/18/2026, 10:00:00 AM | 100% | 1 | 168ms |
| 8/18/2026, 11:00:00 AM | 100% | 1 | 219ms |
| 8/18/2026, 12:00:00 PM | 100% | 1 | 202ms |
| 8/18/2026, 2:00:00 PM | 100% | 1 | 222ms |
| 8/18/2026, 3:00:00 PM | 100% | 1 | 231ms |
| 8/18/2026, 4:00:00 PM | 100% | 1 | 212ms |
| 8/18/2026, 5:00:00 PM | 100% | 1 | 203ms |
| 8/18/2026, 6:00:00 PM | 100% | 1 | 211ms |
| 8/18/2026, 7:00:00 PM | 100% | 1 | 233ms |
| 8/18/2026, 9:00:00 PM | 100% | 1 | 205ms |
| 8/18/2026, 10:00:00 PM | 100% | 1 | 194ms |
| 8/18/2026, 11:00:00 PM | 100% | 1 | 236ms |
| 8/19/2026, 12:00:00 AM | 100% | 1 | 218ms |
| 8/19/2026, 1:00:00 AM | 100% | 1 | 190ms |
| 8/19/2026, 2:00:00 AM | 100% | 1 | 233ms |
| 8/19/2026, 4:00:00 AM | 100% | 1 | 206ms |
| 8/19/2026, 5:00:00 AM | 100% | 1 | 180ms |
| 8/19/2026, 6:00:00 AM | 100% | 1 | 201ms |
| 8/19/2026, 7:00:00 AM | 100% | 1 | 187ms |
| 8/19/2026, 8:00:00 AM | 100% | 1 | 41ms |
| 8/19/2026, 9:00:00 AM | 100% | 1 | 175ms |
| 8/19/2026, 10:00:00 AM | 100% | 1 | 193ms |
| 8/19/2026, 12:00:00 PM | 100% | 1 | 172ms |
| 8/19/2026, 1:00:00 PM | 100% | 1 | 192ms |
| 8/19/2026, 2:00:00 PM | 100% | 1 | 193ms |
| 8/19/2026, 3:00:00 PM | 100% | 1 | 38ms |
| 8/19/2026, 4:00:00 PM | 100% | 1 | 187ms |
| 8/19/2026, 5:00:00 PM | 100% | 1 | 202ms |
| 8/19/2026, 6:00:00 PM | 100% | 1 | 218ms |
| 8/19/2026, 7:00:00 PM | 100% | 1 | 183ms |
| 8/19/2026, 8:00:00 PM | 100% | 1 | 205ms |
| 8/19/2026, 10:00:00 PM | 100% | 1 | 208ms |
| 8/19/2026, 11:00:00 PM | 100% | 1 | 180ms |
| 8/20/2026, 12:00:00 AM | 100% | 1 | 199ms |
| 8/20/2026, 1:00:00 AM | 100% | 1 | 203ms |
| 8/20/2026, 2:00:00 AM | 100% | 1 | 194ms |
| 8/20/2026, 3:00:00 AM | 100% | 1 | 176ms |
| 8/20/2026, 5:00:00 AM | 100% | 1 | 163ms |
| 8/20/2026, 6:00:00 AM | 100% | 1 | 176ms |
| 8/20/2026, 7:00:00 AM | 100% | 1 | 190ms |
| 8/20/2026, 8:00:00 AM | 100% | 1 | 27ms |
| 8/20/2026, 9:00:00 AM | 100% | 1 | 174ms |
| 8/20/2026, 10:00:00 AM | 100% | 1 | 199ms |
| 8/20/2026, 12:00:00 PM | 100% | 1 | 217ms |
| 8/20/2026, 1:00:00 PM | 100% | 1 | 221ms |
| 8/20/2026, 2:00:00 PM | 100% | 1 | 203ms |
| 8/20/2026, 3:00:00 PM | 100% | 1 | 187ms |
| 8/20/2026, 4:00:00 PM | 100% | 1 | 176ms |
| 8/20/2026, 6:00:00 PM | 100% | 1 | 201ms |
| 8/20/2026, 7:00:00 PM | 100% | 1 | 170ms |
| 8/20/2026, 8:00:00 PM | 100% | 1 | 189ms |
| 8/20/2026, 9:00:00 PM | 100% | 1 | 183ms |
| 8/20/2026, 10:00:00 PM | 100% | 1 | 210ms |
| 8/20/2026, 11:00:00 PM | 100% | 1 | 171ms |
| 8/21/2026, 12:00:00 AM | 100% | 1 | 218ms |
| 8/21/2026, 2:00:00 AM | 100% | 1 | 213ms |
| 8/21/2026, 3:00:00 AM | 100% | 1 | 197ms |
| 8/21/2026, 4:00:00 AM | 100% | 1 | 160ms |
| 8/21/2026, 5:00:00 AM | 100% | 1 | 183ms |
| 8/21/2026, 6:00:00 AM | 100% | 1 | 225ms |
| 8/21/2026, 7:00:00 AM | 100% | 1 | 176ms |
| 8/21/2026, 8:00:00 AM | 100% | 1 | 186ms |
| 8/21/2026, 10:00:00 AM | 100% | 1 | 183ms |
| 8/21/2026, 11:00:00 AM | 100% | 1 | 197ms |
| 8/21/2026, 12:00:00 PM | 100% | 1 | 161ms |
| 8/21/2026, 1:00:00 PM | 100% | 1 | 200ms |
| 8/21/2026, 2:00:00 PM | 100% | 1 | 186ms |
| 8/21/2026, 3:00:00 PM | 100% | 1 | 183ms |
| 8/21/2026, 4:00:00 PM | 100% | 1 | 183ms |
| 8/21/2026, 6:00:00 PM | 100% | 1 | 222ms |
| 8/21/2026, 7:00:00 PM | 100% | 1 | 212ms |
| 8/21/2026, 8:00:00 PM | 100% | 2 | 142ms |
| 8/21/2026, 9:00:00 PM | 100% | 1 | 166ms |
| 8/21/2026, 10:00:00 PM | 100% | 1 | 232ms |
| 8/21/2026, 11:00:00 PM | 100% | 1 | 192ms |
| 8/22/2026, 12:00:00 AM | 100% | 1 | 171ms |
| 8/22/2026, 2:00:00 AM | 100% | 1 | 196ms |
- Availability
- 100
- Latency
- 100
- Security
- 100
- Transparency
- 61
- Activity
- not yet measured
How often it was reachable when we probed it (weight 35%).
How quickly it answers when it is up — fast scores high (weight 20%).
Whether it serves over working TLS / https (weight 15%).
Whether the operator disclosed what it does — description, schema, identity (weight 15%).
Observed on-chain payments to this endpoint's wallet — transactions, volume, and distinct paying wallets over the last month (weight 15%; not yet measured when we have not seen its wallet settle).
Confidence 100% — how much probe evidence backs this score. A thin history is flagged, not hidden.
See the scoring methodology for exactly how each number is computed.
Payment
- Currencies
- —
- Networks
- —
- Facilitator
- unknown
- SDK
- unknown
Operator
- Company
- inferred — unknown
- Jurisdiction
- —
- Registrar
- —
- Domain registered
- —
- Hosting network
- CLOUDFLARENET
- Hosting country
- —
Operator context is derived from public RDAP/TLS records and unverified. Company and country are only available for endpoints that publish them (an OV/EV TLS certificate or a non-redacted domain record); most endpoints are CDN-fronted and disclose neither.
Response schema
{
"oneOf": [
{
"description": "JSON-RPC 2.0 response envelope. `result.content[0].text` is a JSON-encoded string matching the schema in `x-mcp-result-schema`.",
"properties": {
"id": {
"type": [
"string",
"number"
]
},
"jsonrpc": {
"const": "2.0"
},
"result": {
"properties": {
"content": {
"items": {
"properties": {
"text": {
"type": "string"
},
"type": {
"const": "text"
}
},
"type": "object"
},
"type": "array"
}
},
"type": "object"
}
},
"type": "object",
"x-mcp-result-schema": {
"properties": {
"bestMove": {
"type": [
"string",
"null"
]
},
"bestMoveSan": {
"type": [
"string",
"null"
]
},
"depthReached": {
"type": "integer"
},
"engine": {
"type": "string"
},
"evalCp": {
"description": "Centipawn score from the side-to-move's perspective, omitted if mateIn is set",
"type": "number"
},
"fenEchoed": {
"type": "string"
},
"mateIn": {
"description": "Moves to mate from the side-to-move's perspective (negative = getting mated), omitted if evalCp is set",
"type": "integer"
},
"multipv": {
"items": {
"properties": {
"evalCp": {
"description": "Centipawn score from the side-to-move's perspective, omitted if mateIn is set",
"type": "number"
},
"mateIn": {
"description": "Moves to mate from the side-to-move's perspective (negative = getting mated), omitted if evalCp is set",
"type": "integer"
},
"move": {
"type": "string"
},
"moveSan": {
"type": "string"
},
"pv": {
"items": {
"type": "string"
},
"type": "array"
}
},
"required": [
"move",
"moveSan",
"pv",
"pvUci"
],
"type": "object"
},
"type": "array"
},
"pv": {
"description": "Principal variation in SAN",
"items": {
"type": "string"
},
"type": "array"
},
"pvUci": {
"items": {
"type": "string"
},
"type": "array"
},
"status": {
"enum": [
"ok",
"checkmate",
"stalemate",
"draw"
],
"type": "string"
},
"timedOut": {
"type": "boolean"
}
},
"required": [
"status",
"bestMove",
"pv",
"depthReached",
"timedOut",
"multipv",
"engine",
"fenEchoed"
],
"type": "object"
}
},
{
"description": "JSON-RPC 2.0 response envelope. `result.content[0].text` is a JSON-encoded string matching the schema in `x-mcp-result-schema`.",
"properties": {
"id": {
"type": [
"string",
"number"
]
},
"jsonrpc": {
"const": "2.0"
},
"result": {
"properties": {
"content": {
"items": {
"properties": {
"text": {
"type": "string"
},
"type": {
"const": "text"
}
},
"type": "object"
},
"type": "array"
}
},
"type": "object"
}
},
"type": "object",
"x-mcp-result-schema": {
"properties": {
"depthReached": {
"type": "integer"
},
"engine": {
"type": "string"
},
"fenEchoed": {
"type": "string"
},
"line": {
"items": {
"properties": {
"depthReached": {
"type": "integer"
},
"evalCp": {
"description": "Centipawn score from the side-to-move's perspective, omitted if mateIn is set",
"type": "number"
},
"mateIn": {
"description": "Moves to mate from the side-to-move's perspective (negative = getting mated), omitted if evalCp is set",
"type": "integer"
},
"move": {
"type": "string"
},
"ply": {
"type": "integer"
},
"san": {
"type": "string"
}
},
"required": [
"ply",
"move",
"san",
"depthReached"
],
"type": "object"
},
"type": "array"
},
"status": {
"enum": [
"ok",
"checkmate",
"stalemate",
"draw"
],
"type": "string"
},
"timedOut": {
"type": "boolean"
}
},
"required": [
"status",
"line",
"depthReached",
"timedOut",
"engine",
"fenEchoed"
],
"type": "object"
}
}
]
}