Open Source Filings
GET api.osf-master-server.com/x402/sample/:record_id
Why an agent can trust this route.
Sonar evidence is advisory. Paid delivery is shown as verified only when paid probes are available; otherwise route estimates use the unpaid handshake as a clearly labeled proxy.
Observed outcomes
Sample any single record in the OSF catalog for $0.001: the full JSON payload plus a provenance URL to the authoritative primary source. A low cost way for an autonomous agent to try the data before buying at the standard per record or search price. One verified record per call keyed by record_id from the free catalog, across 80 sources of US government and scientific data. Fair use daily cap per wallet.
Resource: api.osf-master-server.com/x402/sample/:record_id
Network: eip155:8453 · Asset: 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913 · Pay to: 0x72f62dE8b70d6CFa8Cc2dF6f21F243f289F3396c
Payment methods: — · Last validation: 2026-09-14 11:22:50.671+00
{
"input": {
"type": "object",
"required": [
"type",
"method"
],
"properties": {
"type": {
"type": "string",
"const": "http"
},
"method": {
"enum": [
"GET",
"HEAD",
"DELETE"
],
"type": "string"
},
"pathParams": {
"type": "object"
},
"queryParams": {
"type": "object",
"required": [
"format"
],
"properties": {
"format": {
"type": "string",
"description": "Response format (json)."
}
}
}
},
"additionalProperties": false
},
"output": {
"type": "object",
"required": [
"type"
],
"properties": {
"type": {
"type": "string"
},
"example": {
"type": "object",
"required": [
"status",
"record_id",
"data",
"provenance_url"
],
"properties": {
"data": {
"type": "object"
},
"source": {
"type": "string"
},
"status": {
"type": "string"
},
"data_type": {
"type": "string"
},
"record_id": {
"type": "integer"
},
"provenance_url": {
"type": "string"
}
}
}
}
},
"paymentRequirements": [
{
"raw": {
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2"
},
"payTo": "0x72f62dE8b70d6CFa8Cc2dF6f21F243f289F3396c",
"amount": "1000",
"scheme": "exact",
"network": "eip155:8453",
"maxTimeoutSeconds": 300
},
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"payTo": "0x72f62dE8b70d6CFa8Cc2dF6f21F243f289F3396c",
"scheme": "exact",
"network": "eip155:8453",
"amountAtomic": "1000"
}
]
}Source catalog records are retained separately from live endpoint observations. Sonar score, uptime, and latency are advisory metrics. CDP indexing is not inferred from validation.