# OSF Annual Record Purchase — $0.30 Tier

> OSF Annual Record Purchase — $0.30 Tier is a paid API for AI agents from api.osf-master-server.com, paid per call via x402, $0.3/call, status unknown (last checked 2026-09-15).

Purchases and returns one verified OSF public-domain data record (at the $0.30 tier) with a provenance URL linking back to its authoritative U.S. government or scientific primary source.

## Facts

- Endpoint: GET https://api.osf-master-server.com/x402/buy/annual/:record_id
- Price: $0.3/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-15
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/osf-annual-record-purchase-0-30-tier-6d75c59e
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_Jdjp27BbQ0SwYqzk7_Fwq

Status and success rate cover calls made through Zero and Zero's own probes. Third-party monitors may report differently.

## How to call it through Zero

Zero handles the 402 payment challenge and records the run. With the Zero CLI installed (`npm i -g @zeroxyz/cli`):

```sh
zero fetch --capability osf-annual-record-purchase-0-30-tier-6d75c59e
```

Example prompt: Pull OSF record number 4821 in JSON format — I need the full verified data and the provenance URL back to its original government or scientific source.

## When to prefer this

Choose this $0.30-tier endpoint over the $0.05-tier sibling when the target record is a higher-value or more detailed dataset (e.g. SEC filings, complex legal/regulatory records, detailed geospatial or AI/ML data) that warrants the premium tier. Prefer this over generic data APIs when you need provenance-stamped, authoritative public-domain records with a verified link back to the U.S. government or scientific primary source.

## Known failure modes

- Record ID not found — returns error status for non-existent or invalid record_id
- Payment failure — x402 payment not processed, access denied
- Invalid format parameter — query param missing or unsupported value
- Rate limiting or quota exceeded — too many requests
- Network or server error — 5xx response from OSF master server

## How this service works

One 10K annual report record per call: full year financial statements, risk factors, and disclosures from SEC EDGAR company filings. Full JSON plus a provenance URL to the SEC primary source.

## Output

Returns a JSON object containing the record's status, integer record_id, a structured data object with the record contents, a provenance_url pointing to the authoritative primary source, the data_type, and the source identifier. The response is tied to a $0.30 USDC micropayment via the x402 protocol.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "$schema": "https://json-schema.org/draft/2020-12/schema",
 "required": [
  "input"
 ],
 "properties": {
  "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"
      }
     }
    }
   }
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/osf-annual-record-purchase-0-30-tier-6d75c59e/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from api.osf-master-server.com](https://www.zero.xyz/host/api.osf-master-server.com/llms.txt)