Generate or grade an agent card (the /.well-known/agent-card.json an agent publi
Generate or grade an agent card (the /.well-known/agent-card.json an agent publishes for A2A and AgentWorld-style registries). Generate builds a structurally valid card from your fields; grade scores a supplied card and itemizes its defects. Use this when you are registering an agent and want the card right the first time.
Not tested: has real-world effectsour last check, 2026-10-24
0 of 0checks answered this week
n/amedian answer time
$0.1listed price per call
n/aprice it asked us
Paid test badge: not yet. The checks above are free: we call the tool without paying and read the payment request it sends back. The Verified badge needs paid calls whose answers match the promised output, and nobody can buy a badge.
Endpoint
POST https://stall-row-production.up.railway.app/v1/card-smith
| Category | Everything else |
|---|---|
| Provider host | stall-row-production.up.railway.app |
| Networks | eip155:8453 |
| Payment schemes | exact |
| Self-reported calls, 30 days | 1 from 1 payers (the provider's figure, not ours) |
Our checks, last 30 days
We never call tools that send, buy, move money or file anything, not even without paying.
Example input (from the provider)
{
"body": {
"description": "Research agent",
"mode": "generate",
"name": "Ren",
"skills": [
"research"
]
},
"bodyType": "json",
"method": "POST",
"type": "http"
}
Promised output schema (from the provider)
{
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"input": {
"additionalProperties": false,
"properties": {
"body": {
"properties": {
"card": {
"type": "object"
},
"description": {
"type": "string"
},
"mode": {
"enum": [
"generate",
"grade"
],
"type": "string"
},
"name": {
"type": "string"
},
"skills": {
"type": "array"
}
},
"required": [
"mode"
],
"type": "object"
},
"bodyType": {
"enum": [
"json",
"form-data",
"text"
],
"type": "string"
},
"method": {
"enum": [
"POST",
"PUT",
"PATCH"
],
"type": "string"
},
"type": {
"const": "http",
"type": "string"
}
},
"required": [
"type",
"method",
"bodyType",
"body"
],
"type": "object"
},
"output": {
"properties": {
"example": {
"properties": {
"card": {
"type": [
"object",
"null"
]
},
"mode": {
"type": "string"
},
"validation": {
"properties": {
"defects": {
"items": {
"properties": {
"detail": {
"type": "string"
},
"name": {
"type": "string"
},
"severity": {
"type": "string"
}
},
"required": [
"name",
"severity",
"detail"
],
"type": "object"
},
"type": "array"
},
"score": {
"type": "integer"
},
"valid_structure": {
"type": "boolean"
}
},
"required": [
"valid_structure",
"score",
"defects"
],
"type": "object"
}
},
"required": [
"mode",
"validation"
],
"type": "object"
},
"schema": {
"type": "object"
},
"type": {
"type": "string"
}
},
"required": [
"type"
],
"type": "object"
}
},
"required": [
"input"
],
"type": "object"
}