# First100

**Canonical:** https://apis.io/providers/firsthundred-app/  
**Website:** https://www.firsthundred.app/  
**APIs profiled:** 0

First100 provides an MCP server for AI agents such as Claude Code, Codex, Cursor, and ChatGPT, enabling automated social publishing, audience discovery, SEO analysis, and email outreach. The platform integrates with X, LinkedIn, Threads, Bluesky, and more, offering a go‑to‑market solution for AI‑driven marketing workflows.

## Kin Score — 20.1 / 100 (emerging)

Scored 2026-11-13 under rubric 0.28.0.

| Facet | Score |
|---|---|
| Discoverability | 48.2 |
| Contract Quality | 0.0 |
| Contract Governance | 0.0 |
| Operational Transparency | 0.0 |
| Developer Ergonomics | 35.7 |
| Access Clarity | 42.6 |

Regulatory layer — **Horizontal (data, software, accessibility, platform)**: 12.7 (matched via fallback).

## Agent readiness — 18.7 (agent-aware)

| Dimension | Value |
|---|---|
| Spec Presence | no |
| Agentic Access | no |
| Reversibility Documented | no |
| MCP Server | no |
| Auth Clarity | served |
| 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 |
| Delegated Identity | served |
| Protected Resource Metadata | verified |
| Dynamic Client Registration | yes |
| Agentic Commerce | no |
| Pagination Ratio | na |
| Operation Distinctiveness | na |
| MCP Tool Quality | na |

## Access

Paid — onboarding: unknown, pricing: paid, trial: no (confidence: medium).

## Security (2)

- **First100 Authentication** — 1 scheme
- **First100 Domain Security** — TLSv1.3 · HSTS · DNSSEC

## Plans (1)

- **First100 Plans Pricing**

## Tags

Company, MCP, Artificial Intelligence, Marketing, Social, Automation

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