# DFDL

**Canonical:** https://apis.io/providers/dfdl/  
**Website:** https://daffodil.apache.org/  
**APIs profiled:** 0

Data Format Description Language (DFDL) is an open standard for describing data formats used in binary and text files and data streams. DFDL is used to describe the format of existing data so that it can be parsed or unparsed (generated) using a DFDL processor, enabling integration with legacy and modern data systems. DFDL was developed by the Open Grid Forum (OGF) and is also published as ISO/IEC 23415:2004. Apache Daffodil is the reference open-source implementation, with the latest release being version 4.1.0.

## Kin Score — 7.2 / 100 (minimal)

Scored 2026-08-21 under rubric 0.12.0. Trend: flat (+0.0 from 7.2).

| Facet | Score |
|---|---|
| Discoverability | 57.4 |
| Contract Quality | 0.0 |
| Governance | 0.0 |
| Contract Governance | 0.0 |
| Operational Transparency | 0.0 |
| Developer Ergonomics | 9.5 |
| Commercial Clarity | 0.0 |
| Access Clarity | 0.0 |

Regulatory layer — **Energy & Utilities**: 16.2 (matched via tags).

## Agent readiness — 0.0 (human-only)

| Dimension | Value |
|---|---|
| Spec Presence | no |
| Agentic Access | no |
| Reversibility Documented | no |
| MCP Server | no |
| Auth Clarity | no |
| Idempotency | no |
| Error Semantics | no |
| OpenAPI Examples | no |
| Rate Limit Signal | no |
| Event Surface Described | no |
| Agent Skills | no |
| Well Known Catalog | no |
| Consent Identity | no |
| Agent Card | no |
| Dry Run Mode | no |

## Access

Unknown — onboarding: unknown, pricing: unknown, trial: no (confidence: low).

## Security (2)

- **Dfdl Domain Security** — TLSv1.3 · HSTS
- **Dfdl Vulnerability Disclosure** — security.txt · contact published

## Tags

Apache Daffodil, Binary Data, Data Description, Data Formats, DFDL, ISO Standard, Open Grid Forum, Parsing, Schema, Standards, XML Schema

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Profiled by [API Evangelist](https://apievangelist.com) and published on [APIs.io](https://apis.io/providers/dfdl/). Scores are computed from the provider's own public artifacts under a published rubric.