# Internal Revenue Service

**Canonical:** https://apis.io/providers/internal-revenue-service/  
**Website:** https://www.irs.gov/  
**APIs profiled:** 2

The Internal Revenue Service (IRS) is the United States federal tax collection agency and a bureau of the Department of the Treasury. The IRS publishes developer resources for tax software providers and transmitters including the Modernized e-File (MeF) system for electronic tax return submission, the e-Services suite for authorized e-file providers, and Publication 4164 (the MeF Guide for Software Developers and Transmitters) which documents the XML schemas and transmission protocols required for integration.

## Kin Score — 9.8 / 100 (minimal)

Scored 2026-08-20 under rubric 0.12.0. Trend: flat (+0.0 from 9.8).

| Facet | Score |
|---|---|
| Discoverability | 59.3 |
| Contract Quality | 0.0 |
| Governance | 0.0 |
| Contract Governance | 0.0 |
| Operational Transparency | 10.5 |
| Developer Ergonomics | 4.8 |
| Commercial Clarity | 15.8 |
| Access Clarity | 15.8 |

Regulatory layer — **Government & Public Sector**: 11.1 (matched via tags).

## Agent readiness — 3.0 (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 | documented |
| Event Surface Described | no |
| Agent Skills | no |
| Well Known Catalog | no |
| Consent Identity | no |
| Agent Card | no |
| Dry Run Mode | no |

## Access

Freemium — onboarding: unknown, pricing: freemium, trial: no (confidence: medium).

## APIs (2)

- **IRS Modernized e-File (MeF)** — The IRS Modernized e-File (MeF) system is the web-based electronic filing platform supporting individual, business, and tax-exempt return submission via XML-based schemas. Softw...
- **IRS e-Services** — IRS e-Services is a suite of web-based products for tax professionals, reporting agents, and authorized e-file providers offering Transcript Delivery, TIN Matching, e-file appli...

## Security (1)

- **Internal Revenue Service Domain Security** — TLSv1.3 · HSTS · DNSSEC · DMARC

## Plans (1)

- **Internal Revenue Service Plans Pricing**

## Tags

Federal-Government, Finance, IRS, Tax, Tax Filing

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