# Rates and Limits

**Canonical:** https://apis.io/providers/rates-and-limits/  
**Website:** https://ratesandlimits.com/  
**APIs profiled:** 1

A free, keyless open-data publisher exposing US federal and state tax, payroll, benefits, and wage figures as JSON. Every figure ships bundled with provenance: the exact quoted sentence from the governing government document, byte offsets, sha256-stamped source snapshots, and last-verified dates.

## Kin Score — 19.8 / 100 (emerging)

Scored 2026-09-14 under rubric 0.22.0.

| Facet | Score |
|---|---|
| Discoverability | 66.7 |
| Contract Quality | 0.0 |
| Contract Governance | 0.0 |
| Operational Transparency | 0.0 |
| Developer Ergonomics | 33.3 |
| Access Clarity | 21.1 |

Regulatory layer — **Government & Public Sector**: 37.0 (matched via tags).

## Agent readiness — 5.0 (human-only)

| Dimension | Value |
|---|---|
| Spec Presence | no |
| Agentic Access | no |
| Reversibility Documented | no |
| MCP Server | no |
| Auth Clarity | bearer |
| 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 |
| Delegated Identity | no |
| Protected Resource Metadata | no |
| Dynamic Client Registration | no |
| Agentic Commerce | no |

## APIs (1)

- **Rates and Limits JSON API** — Keyless, unauthenticated REST-style JSON API serving US tax, payroll, benefits, and wage figures with bundled provenance. Includes a self-describing catalog (index.json) and a b...

## MCP servers (1)

- **Rates and Limits MCP Server**

## Security (2)

- **Rates And Limits Authentication** — 0 schemes
- **Rates And Limits Domain Security** — TLSv1.3 · HSTS · DMARC

## Plans (1)

- **Rates And Limits Plans Pricing**

## Tags

Tax, Payroll, Benefits, IRS, minimum-wage, Open Data, Government, Compliance, Fintech, HR, Reference Data, JSON, llms-txt

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