# First Resonance

**Canonical:** https://apis.io/providers/first-resonance/  
**Website:** https://firstresonance.io  
**APIs profiled:** 1

First Resonance builds ION, a modern Factory Operating System (MES) for companies manufacturing complex hardware in aerospace, defense, robotics, medical devices, and clean energy. ION provides digital work instructions (Procedures and Runs), part and inventory traceability, mBOM/aBOM management, quality and compliance workflows, production scheduling (ION AutoPlan), and analytics. For developers, ION exposes a GraphQL API (api.buildwithion.com) secured with OAuth 2.0 client-credentials API keys, cursor-based (Relay) pagination, webhook subscriptions for realtime events, and a beta hosted MCP server so AI agents can operate the factory system. This profile was enriched from First Resonance's public developer manual.

## Kin Score — 54.7 / 100 (developing)

Scored 2026-08-17 under rubric 0.11.0. Trend: flat (+0.0 from 54.7).

| Facet | Score |
|---|---|
| Discoverability | 87.0 |
| Contract Quality | 51.6 |
| Governance | 3.1 |
| Operational Transparency | 52.6 |
| Developer Ergonomics | 69.0 |
| Commercial Clarity | 60.5 |

## Agent readiness — 42.6 (agent-ready)

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

## Access

Self-serve signup — onboarding: self-serve, pricing: unknown, trial: no (confidence: medium).

## APIs (1)

- **ION GraphQL API** — The ION Factory OS GraphQL API. A single GraphQL endpoint for reading and writing manufacturing data in ION: Runs, Procedures, Parts, mBOM/aBOM, inventory, notifications, and we...

## MCP servers (1)

- **first-resonance-mcp.yml**

## Security (3)

- **First Resonance Authentication** — oauth2 · 1 scheme
- **First Resonance Domain Security** — TLSv1.3 · HSTS · DMARC
- **First Resonance Trust Center** — SOC 2, FedRAMP, GDPR, FIPS 140

## Tags

Company, Infrastructure, Manufacturing, MES, Factory Operating System, Hardware, Aerospace, GraphQL, Traceability, Supply Chain

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