First Resonance website screenshot

First Resonance

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.

First Resonance is listed with 1 API on the APIs.io network. Tagged areas include Company, Infrastructure, Manufacturing, MES, and Factory Operating System.

The First Resonance catalog on APIs.io includes 1 event-driven AsyncAPI specification.

First Resonance’s developer surface includes documentation, API reference, getting-started guide, authentication, engineering blog, pricing, signup flow, and 23 more developer resources.

53.1/100 developing ▬ flat Agent 46/100 agent ready Front door AI 2/6 trace Heartbeat 59/100 alive saas Full breakdown ↓
scored 2026-11-06 · rubric v0.27.0 · Show this score on your site →
AccessPaidSelf serve
1 API 1 MCP Servers 2 Agent Skills
CompanyInfrastructureManufacturingMESFactory Operating SystemHardwareAerospaceGraphQLTraceabilitySupply Chain

Kin Score

Kin Score Kin Score How this is scored →
scored 2026-11-06 · rubric v0.27.0
Regulatory Posture applies to this provider. Its tags matched the Horizontal (data, software, accessibility, platform) regime, so Regulatory Posture carries 15 points of the composite. If this regime is wrong for your business, say so on your provider repo — the applicability map is public and we will correct it.
Create-or-Update Ergonomics could not be measured. We hold no machine-readable contract for this provider to read, so there is nothing to measure a write surface against. Excluded rather than scored zero: never-measured and measured-empty are different facts. Publishing an OpenAPI is what makes this facet — and several others — scorable at all.
The six quality facets above are damped to 85 points between them, because the conditional facet above carries the other 15. That is why each facet's contribution is shown against a damped maximum: raising a quality facet moves the composite by 85% of its nominal weight, not 100%. The full arithmetic is at apis.io/rating/.
Show this score on your site. Kin Score badge preview for First Resonance It updates itself when the score changes. Paste this where you link to your API docs:
<a href="https://apis.io/providers/first-resonance/"><img src="https://apis.io/badge/first-resonance/card.svg" alt="First Resonance on APIs.io — Kin Score by API Evangelist"></a>
Other styles, a README pill and a shields.io endpoint are on the badge page.
Raise your score.
Agent readiness — checks not met, largest first (exact, from this profile):
  • Agentic Access Contract +10 pts — agentic_access artifact present (x-agentic-access), graded by author
  • Idempotency +9 pts — OpenAPI mutating operations declare an idempotency key — a header, a request-body property, or a named de-duplication token whose own description says so (verified); else common[].type matches /idempoten/i (documented)
  • Stable Error Semantics +8 pts — OpenAPI $refs a shared error schema across 4xx/5xx responses (verified), else common[].type includes ErrorCatalog / ErrorCodes / DeclineCodes
  • A2A Agent Card +8 pts — a2a/-a2a.yml manifest, graded on conformance.grade against A2A 1.0.0
  • Rate-Limit Signaling +7 pts — OpenAPI responses document X-RateLimit-* / RateLimit headers (verified), else a rate_limits artifact or RateLimits link (documented)
  • Request/Response Examples +7 pts — share of operations carrying request/response examples; else an Examples / Code Samples link
5 more unmet checks in the Agent Readiness table above.
Kin Score — facets with the most composite points still available (weight × headroom):
Each check links to what satisfies it. Publish the artifact, or tell us where it already lives, and the score moves on the next scoring run.
Improve this rating by publishing the missing artifacts — every area above can be raised, and the full rubric is at apis.io/rating/. Every facet and dimension name above is a link: it opens that measurement's own page — what it means, the exact checks that feed it, how the whole catalog distributes on it, and the providers at the top of it. This rating is computed from the provider profile at artifacts.apis.io/first-resonance/apis.yml: open an issue on github.com/api-evangelist/first-resonance to ask a question or point us at an artifact you publish. Submit an artifact on GitHub — free → Manage your own listing — the Influence plan, $499/mo →

Standards implemented 4

Standards this provider implements or carries. De facto ones are profiled and measured by the API Commons; formal ones come from the standards directory and are linked by the provider's own tags. The evidence column says how each claim was established — not that it was made.

tagged — the provider's own APIs.json carries the standard as a tag; implementation not verified
measured — observed by APIs.io (verified)
measured — observed by APIs.io (verified)
measured — observed by APIs.io (published)

APIs 1

Individual APIs this provider publishes, each with its own machine-readable definition.

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

Model Context Protocol servers that expose these APIs to AI agents.

First Resonance MCP Server

First Resonance publishes an official hosted MCP (Model Context Protocol) server that lets AI agents operate ION Factory OS. It is currently in beta and available on staging onl...

MCP SERVER

Agent Skills 2

Packaged agent skills for driving this provider's APIs from an AI assistant.

First Resonance API pricing

Prices published by First Resonance, read 2026-10-28 from www.firstresonance.io/plans.

PlanPrice
ION Factory Essentials REquest a quote
Includes: Security and Compliance, Integration Essentials, ION Production, ION Quality, Basic Training & Docum
ION Factory Pro REquest a quote
Includes: Adds ION API, ION Analytics, SSO / MFA / GOV Cloud, On-Site Implementation, Dedicated CSM, Access to
ION Factory Enterprise REquest a quote
Includes: Adds ION Autoplan, ION Procurement, After Hours Support 24/7

Plan details, limits and sources →

Pricing Plans 1

Published pricing tiers and plan structures.

FinOps 1

Cost, billing, and metering signals for API financial operations.

Event Specifications 1

AsyncAPI definitions for this provider's event-driven and streaming APIs.

Security Posture 3

Authentication, domain security, vulnerability disclosure, and trust-center signals.

First Resonance Authentication

oauth2 · 1 scheme

SECURITY

First Resonance Domain Security

TLSv1.3 · HSTS · DMARC

SECURITY

First Resonance Trust Center

SOC 2, FedRAMP, GDPR, FIPS 140

SECURITY

Resources

Get Started 4

Portal, sign-up, and the first successful call

Documentation 2

Reference material describing how the API behaves

Agent Surfaces 4

MCP servers, agent skills, and machine-readable catalogs

Design & Contract 4

Pagination, idempotency, versioning, errors, and events

Build 1

SDKs, sample code, and the tooling you integrate with

Access & Security 4

Authentication, authorization, and security posture

Operate 5

Status, limits, changes, and where to get help

Commercial 4

Pricing, plans, and the legal terms of use

Company 2

The organization behind the API

Source (apis.yml)

apis.yml Raw ↑
aid: first-resonance
name: First Resonance
description: 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.
deliveryModel:
  model: saas
  open_source: false
  commercial: true
  callable_host: false
  label: Hosted service · you call their endpoint
  confidence: medium
  source:
  - pricing
  generated: '2026-08-28'
  method: derived
accessModel:
  pricing: paid
  onboarding: self-serve
  trial: false
  try_now: false
  public: false
  gated: none
  gated_source:
  - onboarding
  label: Paid · Self-serve signup
  confidence: high
  source:
  - plans
  - authentication
  - security
  - sandbox
  generated: '2026-11-06'
  method: derived
image: https://www.firstresonance.io/favicon.ico
url: https://raw.githubusercontent.com/api-evangelist/first-resonance/refs/heads/main/apis.yml
x-type: company
x-source: vc-portfolio
x-backed-by:
- craft-ventures
x-tier: stub
x-tier-reason: portfolio-lead
specificationVersion: '0.23'
created: '2026-07-17'
modified: '2026-07-19'
x-docs-platform: gitbook
x-docs-platform-confidence: high
x-docs-platform-checked: 2026-10-03
tags:
- Company
- Infrastructure
- Manufacturing
- MES
- Factory Operating System
- Hardware
- Aerospace
- GraphQL
- Traceability
- Supply Chain
apis:
- name: ION GraphQL API
  description: '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 webhook subscriptions. Authentication is OAuth 2.0 client
    credentials (API key clientId/clientSecret exchanged for an access token at a Keycloak realm), with cursor-based Relay
    pagination and realtime webhook events.'
  humanURL: https://manual.firstresonance.io/api
  baseURL: https://api.buildwithion.com/graphql
  tags:
  - GraphQL
  - Manufacturing
  - MES
  properties:
  - type: GraphQL
    url: https://api.buildwithion.com/graphql
  - type: APIReference
    url: https://manual.firstresonance.io/api/interactive-api-explorer
  - type: Documentation
    url: https://manual.firstresonance.io/api
  - type: GettingStarted
    url: https://manual.firstresonance.io/api/how-to-create-an-app-with-ion
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
common:
- type: Plans
  url: plans/first-resonance-plans-pricing.yml
- type: TrustCenter
  url: security/first-resonance-trust-center.yml
- type: Compliance
  url: https://security.firstresonance.io/
- type: Website
  url: https://firstresonance.io
- type: DeveloperPortal
  url: https://manual.firstresonance.io/api
- type: Documentation
  url: https://manual.firstresonance.io/
- type: APIReference
  url: https://manual.firstresonance.io/api/interactive-api-explorer
- type: GettingStarted
  url: https://manual.firstresonance.io/api/how-to-create-an-app-with-ion
- type: Authentication
  url: authentication/first-resonance-authentication.yml
- type: Blog
  url: https://www.firstresonance.io/blog
- type: Pricing
  url: https://www.firstresonance.io/plans
- type: SignUp
  url: https://app.firstresonance.io/login
- type: Support
  url: https://www.firstresonance.io/contact/support
- type: TermsOfService
  url: https://www.firstresonance.io/terms
- type: PrivacyPolicy
  url: https://www.firstresonance.io/privacy-policy
- type: GitHubOrganization
  url: https://github.com/firstresonance
- type: StatusPage
  url: https://status.firstresonance.io
- type: ChangeLog
  url: https://www.firstresonance.io/changelog
- type: Deprecation
  url: https://manual.firstresonance.io/api/api-change-policy
- type: MCPServer
  url: mcp/first-resonance-mcp.yml
- type: Webhooks
  url: asyncapi/first-resonance-webhooks.yml
- type: WellKnown
  url: well-known/first-resonance-well-known.yml
- type: LLMsTxt
  url: llms/first-resonance-llms.txt
- type: Lifecycle
  url: lifecycle/first-resonance-lifecycle.yml
- type: Conventions
  url: conventions/first-resonance-conventions.yml
- type: Conformance
  url: conformance/first-resonance-conformance.yml
- type: Sandbox
  url: sandbox/first-resonance-sandbox.yml
- type: ChangeLog
  url: changelog/first-resonance-changelog.yml
- type: AgentSkill
  url: skills/_index.yml
- type: DomainSecurity
  url: security/first-resonance-domain-security.yml
- type: Integrations
  url: https://marketplace.firstresonance.io/
x-enrichment:
  date: '2026-07-19'
  status: backfilled
  pass: local-v1
  note: backfilled from .gitignore signal + verified work evidence

First Resonance API — frequently asked questions

Does First Resonance have an API?

Yes. APIs.io lists 1 API from First Resonance, including ION GraphQL API.

How do I authenticate with the First Resonance API?

First Resonance documents its authentication (oauth2 · 1 scheme). The details are profiled on APIs.io as First Resonance Authentication.

How much does the First Resonance API cost?

First Resonance publishes its prices; its ION Factory Essentials plan is REquest a quote as of 2026-10-28. APIs.io lists 3 pricing plans for First Resonance, with each plan's price, limits and inclusions under Pricing on this page.

Does First Resonance have an MCP server?

Yes. APIs.io lists 1 MCP server for First Resonance: First Resonance publishes an official hosted MCP (Model Context Protocol) server that lets AI agents operate ION Factory OS. It is currently in beta and available on staging only; production is not ye

Is the First Resonance API ready for AI agents?

First Resonance has a Kin Score of 53.1 out of 100 (developing) and an Agent Readiness score of 45.5 (agent-ready), scored by API Evangelist on 2026-11-06.

Work with this as data

Every provider here is available over the APIs.io API and to AI agents over MCP.

MCP server

One button, every client — Claude, Cursor, VS Code and the rest.

https://apis.io/mcp

Tools for providers

9 MCP tools reach this
  • find_providersBrowse and filter every provider in the catalog.
  • get_provider_artifactsEvery artifact this provider publishes, grouped by type.
  • get_provider_operationsEvery operation across all of their OpenAPIs — one call instead of parsing every spec.
  • get_provider_toolsEvery MCP tool they ship, with the operation each wraps.
  • get_provider_evidenceHow each part of their score was established. Free — the basis for a claim should not sit behind it.
  • get_provider_ratingPRO — composite, band, trend and facet scores.
  • apis_io_searchSTART HERE — APIs, providers and tags for one query, each with its total.
  • resolveTurn a domain, URL or GitHub org into the provider it belongs to.
  • find_cohortsEvery scored population of providers in the catalog.
All 92 tools →

Call it yourself

curl for this page
This provider
curl "https://apis.io/api/v1/providers/first-resonance"
All providers
curl "https://apis.io/api/v1/providers?limit=25"
Every operation they expose
curl "https://apis.io/api/v1/providers/first-resonance/operations?limit=25"
How their score was established
curl "https://apis.io/api/v1/providers/first-resonance/evidence"

Calls without X-API-Key need no key. Calls with it need a paid plan — get a key.

Get an API key

Free tier, no form to fill in. Signing in shares your email address with us — we store it to create your key and to recognise you if you sign in with another provider. See our Privacy Policy and Terms.

A second provider on the same verified email joins the account you already have.