---
schema: "interfacedelta-service-md/1"
target_key: "sha256:511ac159c7c67b8fb7a93ef7b4abb66a4318bc09dcd47a6f6e6e439d866e2ce5"
origin: "https://app.ohfax.com"
protocols: ["mcp"]
observed_at: "2026-11-13T20:25:26.386Z"
generated_at: "2026-11-14T10:07:14.520Z"
record_url: "https://interfacedelta.com/atlas/sha256:511ac159c7c67b8fb7a93ef7b4abb66a4318bc09dcd47a6f6e6e439d866e2ce5"
record_api: "https://interfacedelta.com/api/v1/record/services/sha256:511ac159c7c67b8fb7a93ef7b4abb66a4318bc09dcd47a6f6e6e439d866e2ce5"
source: "InterfaceDelta atlas"
license_note: "Use of this record is governed by https://interfacedelta.com/terms."
---

# Service record: https://app.ohfax.com

## Identity
- Origin: https://app.ohfax.com
- Endpoints: https://app.ohfax.com/mcp
- Protocols: mcp
- Registry names: com.ohfax/ohfax
- First retained observation: 2026-11-13T20:25:26.386Z
- Latest observation: 2026-11-13T20:25:26.386Z

## Tools
MCP tools, OpenAPI operations, WebMCP tools and A2A skills; excludes prompts and resources.
Total capabilities: 4; non-tool capabilities: 0.
- Tool 1: get\_fax\_receipt (mcp); inputs: fax\_id; inputs omitted: 0; annotations: {"readOnlyHint":true,"destructiveHint":false,"openWorldHint":true}
- Tool 2: get\_fax\_status (mcp); inputs: fax\_id; inputs omitted: 0; annotations: {"readOnlyHint":true,"destructiveHint":false,"openWorldHint":true}
- Tool 3: quote\_fax (mcp); inputs: document\_base64, document\_url, to; inputs omitted: 0; annotations: {"readOnlyHint":true,"destructiveHint":false,"openWorldHint":true}
- Tool 4: send\_fax (mcp); inputs: quote\_id; inputs omitted: 0; annotations: {"readOnlyHint":false,"destructiveHint":true,"idempotentHint":true,"openWorldHint":true}
Tools omitted: 0.

## Effect readings (AI)
- Tool 1 (get\_fax\_receipt): ◇ AI reading; state: counted; reads (confidence 0.85); lens: side-effects@1; model: claude-haiku-5.5.
- Tool 2 (get\_fax\_status): ◇ AI reading; state: counted; reads (confidence 0.85); lens: side-effects@1; model: claude-haiku-5.5.

## Change history
No changes recorded in the retained history.

## Payment rails
- Protocols observed: none.
- HTTP 402 seen in retained observations: false.

## Not covered
- We don't call tools.
- We don't rate or certify.
- We don't publish prices.
- We cover only what was observed.

## Evidence
- Identity: observed / declared; observation time: 2026-11-13T20:25:26.386Z.
- Tools: declared; observation time: 2026-11-13T20:25:26.386Z.
- Effect readings (AI): AI reading; observation time: 2026-11-13T20:25:26.386Z.
- Change history: observed; observation time: 2026-11-13T20:25:26.386Z; change observation times: none.
- Payment rails: observed; observation time: 2026-11-13T20:25:26.386Z.

```json
{
  "schema": "interfacedelta-service-md/1",
  "target_key": "sha256:511ac159c7c67b8fb7a93ef7b4abb66a4318bc09dcd47a6f6e6e439d866e2ce5",
  "origin": "https://app.ohfax.com",
  "protocols": [
    "mcp"
  ],
  "observed_at": "2026-11-13T20:25:26.386Z",
  "generated_at": "2026-11-14T10:07:14.520Z",
  "record_url": "https://interfacedelta.com/atlas/sha256:511ac159c7c67b8fb7a93ef7b4abb66a4318bc09dcd47a6f6e6e439d866e2ce5",
  "record_api": "https://interfacedelta.com/api/v1/record/services/sha256:511ac159c7c67b8fb7a93ef7b4abb66a4318bc09dcd47a6f6e6e439d866e2ce5",
  "source": "InterfaceDelta atlas",
  "license_note": "Use of this record is governed by https://interfacedelta.com/terms.",
  "identity": {
    "origin": "https://app.ohfax.com",
    "endpoints": [
      "https://app.ohfax.com/mcp"
    ],
    "protocols": [
      "mcp"
    ],
    "registry_names": [
      "com.ohfax/ohfax"
    ],
    "first_retained_observation": "2026-11-13T20:25:26.386Z",
    "latest_observation": "2026-11-13T20:25:26.386Z"
  },
  "tools": [
    {
      "name": "get_fax_receipt",
      "kind": "mcp.tool",
      "protocol": "mcp",
      "inputs": [
        "fax_id"
      ],
      "inputs_omitted": 0,
      "annotations": {
        "readOnlyHint": true,
        "destructiveHint": false,
        "openWorldHint": true
      },
      "effects": {
        "marker": "◇ AI reading",
        "state": "counted",
        "classes": [
          {
            "class": "reads",
            "confidence": 0.85
          }
        ],
        "lens": "side-effects@1",
        "model": "claude-haiku-5.5"
      }
    },
    {
      "name": "get_fax_status",
      "kind": "mcp.tool",
      "protocol": "mcp",
      "inputs": [
        "fax_id"
      ],
      "inputs_omitted": 0,
      "annotations": {
        "readOnlyHint": true,
        "destructiveHint": false,
        "openWorldHint": true
      },
      "effects": {
        "marker": "◇ AI reading",
        "state": "counted",
        "classes": [
          {
            "class": "reads",
            "confidence": 0.85
          }
        ],
        "lens": "side-effects@1",
        "model": "claude-haiku-5.5"
      }
    },
    {
      "name": "quote_fax",
      "kind": "mcp.tool",
      "protocol": "mcp",
      "inputs": [
        "document_base64",
        "document_url",
        "to"
      ],
      "inputs_omitted": 0,
      "annotations": {
        "readOnlyHint": true,
        "destructiveHint": false,
        "openWorldHint": true
      },
      "effects": null
    },
    {
      "name": "send_fax",
      "kind": "mcp.tool",
      "protocol": "mcp",
      "inputs": [
        "quote_id"
      ],
      "inputs_omitted": 0,
      "annotations": {
        "readOnlyHint": false,
        "destructiveHint": true,
        "idempotentHint": true,
        "openWorldHint": true
      },
      "effects": null
    }
  ],
  "capability_count": 4,
  "non_tool_capability_count": 0,
  "tool_count_scope": "MCP tools, OpenAPI operations, WebMCP tools and A2A skills; excludes prompts and resources.",
  "tools_omitted": 0,
  "tools_state": "recorded",
  "changes": [],
  "payment_rails": {
    "protocols": [],
    "http_402_seen": false
  },
  "not_covered": [
    "We don't call tools.",
    "We don't rate or certify.",
    "We don't publish prices.",
    "We cover only what was observed."
  ],
  "evidence": [
    {
      "section": "Identity",
      "classes": [
        "observed",
        "declared"
      ],
      "observed_at": "2026-11-13T20:25:26.386Z"
    },
    {
      "section": "Tools",
      "classes": [
        "declared"
      ],
      "observed_at": "2026-11-13T20:25:26.386Z"
    },
    {
      "section": "Effect readings (AI)",
      "classes": [
        "AI reading"
      ],
      "observed_at": "2026-11-13T20:25:26.386Z"
    },
    {
      "section": "Change history",
      "classes": [
        "observed"
      ],
      "observed_at": "2026-11-13T20:25:26.386Z",
      "observation_times": []
    },
    {
      "section": "Payment rails",
      "classes": [
        "observed"
      ],
      "observed_at": "2026-11-13T20:25:26.386Z"
    }
  ]
}
```