gunspec-io
A firearm database API for developers: specifications for over 8,500 guns, every figure sourced. The REST API offers endpoints for firearms, ammunition, manufacturers, and accessories, plus SDKs for popular languages and an MCP server. A free plan is available, with paid tiers for higher rate limits.
Reference-quality API operations across every facet — a rich contract, published governance, transparent operations, and machine-readable commercial terms.
API Evangelist profiles gunspec-io the way a machine reads it — 39 machine-readable artifacts across 1 API, pulled from the provider's own public surface and indexed so a developer, an analyst, or an AI agent can evaluate it against every other provider on the network.
Every provider in the network is reduced to the same set of machine-readable artifacts — OpenAPI contracts, event specifications, GraphQL schemas, runnable collections, pricing and rate-limit signals, security posture, OAuth scopes, and the agent surfaces (MCP servers and skills) that let software drive the API on its own. We profile them because the interface is the part of a company you can actually inspect: it is a truer signal of what a provider does than any marketing page. From those artifacts we compute the Kin Score — gunspec-io scores 70.8/100 (exemplar), with a separate agent-readiness read of 43/100 (agent ready). The full breakdown is below, followed by every artifact we hold — each card links through to its machine-readable definition on apis.io.
Kin Score
This is the API Evangelist rating — a single, repeatable read computed from the artifacts on this page. Green fill is points earned; the red track is points possible, so every bar shows earned-versus-possible at a glance. Every facet and dimension name is a link: it opens that measurement's page on APIs.io, where the rating runs across the whole catalog — the exact checks that feed it, how every profiled provider distributes on it, and who is at the top of it.
Kin Score
How this is scored →scored 2026-10-31 · rubric v0.25.0
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How we profile gunspec-io
Each block below is one kind of artifact we hold for gunspec-io. For each we say what it is and why it earns a place in the profile, then list every one we've indexed — capped at two rows, scroll within the panel for the rest.
APIs 22
Each API is captured as its own OpenAPI definition — every operation, parameter, and response. This is the single most useful machine-readable description of what an API does, and it's what lets us score, lint, mock, and generate against it without asking the provider for anything.
Individual APIs this provider publishes, each with its own machine-readable definition.
gunspec-io Account API
The authenticated account surface: your favorites, data reports, support tickets, webhook endpoints, and API usage. Requires an API key belonging to a user account.
gunspec-io Ammunition API
Specific ammunition loads per caliber, with ballistics calculation and bullet diagrams
gunspec-io Calibers API
Ammunition calibers, cartridge specifications, comparison, and family relationships
gunspec-io Categories API
Firearm categories (pistol, rifle, shotgun, etc.)
gunspec-io Changes API
What changed in the catalogue: records added, updated, removed and merged, with the fields that moved, as a list to read forward from and as RSS
gunspec-io Collections API
Publicly shared user collections
gunspec-io Compatibility API
Mount interfaces, the attachment catalog and what fits what: a firearm's resolved interfaces, the attachments that fit it (direct, through a named adapter, or curated), the fire...
gunspec-io Conflicts API
Armed conflicts referenced by firearm service history
gunspec-io Content API
Changelog entries and blog posts
gunspec-io Countries API
Countries of origin and national arsenals
gunspec-io Data Quality API
Field coverage and confidence metrics for the dataset
gunspec-io Firearm Analysis API
Derived views over firearms: family tree, similar models, adoption map, dimensions, game profile, and the cost of marching with them
gunspec-io Firearm Discovery API
Cross-catalog queries: random picks, top lists, head-to-head, and filters by feature, action, material, designer, or conflict
gunspec-io Firearms API
Firearms specifications, search, comparison, and related data
gunspec-io Game API
Game-balance analysis: balance report, tier list, matchups, role roster, and stat distribution
gunspec-io Game Stats API
Versioned game stats snapshots. Pin your game to a specific dataset version (e.g., "2025.1") so rebalancing changes don't break your build mid-development. List available versio...
gunspec-io Health API
Health and readiness checks
gunspec-io Manufacturers API
Firearm manufacturers, their products, timelines, and statistics
gunspec-io Papers API
Research papers: technical reports on the catalogue, each with its authors, review status and the requests that reproduce its figures
gunspec-io Releases API
New firearm models, each with the dates it was announced and first read, its alternate names and the sources that name it
gunspec-io Seller API
The seller layer: who stocks a catalogued part or firearm, and where to buy it. Public reads on any record, and a private surface for an Enterprise shop to keep its own listings...
gunspec-io Statistics API
Aggregate database statistics: coverage, distribution by category, era, country, material, and action type
Scroll within the panel for all 22 ·
Agent Skills 2
An agent skill packages the how-to for driving these APIs from an assistant — the prompts, the sequence, the guardrails — so the knowledge to use the API travels with it.
Packaged agent skills for driving this provider's APIs from an AI assistant.
list-firearms
AGENT SKILLsearch-firearms
AGENT SKILLPricing Plans 1
Pricing is part of the interface. Machine-readable plans tell you what a tier costs and includes before you commit — one of the things the Kin Score reads for access clarity — renamed from commercial clarity in rubric 0.12, because a free statutory interface has access terms and no commercial ones.
Published pricing tiers and plan structures.
Rate Limits 1
Rate limits are the difference between a demo that works and a production integration that doesn't fall over. Publishing them is an operational-transparency signal — and a hard requirement for any agent that plans its own throughput.
Documented rate limits and quota policies.
Gunspec Io Rate Limits
RATE LIMITSSemantic Vocabularies 1
JSON-LD contexts give the data shared meaning across APIs. We profile them because semantics are what let a machine reconcile 'customer' here with 'customer' somewhere else.
JSON-LD contexts and semantic vocabularies used across these APIs.
Gunspec Io Context
JSON-LDSpectral Rules 1
Governance rulesets we run against this provider's specs — the automated checks behind parts of the score. Profiling them makes the quality bar explicit and re-runnable, not a matter of opinion.
gunspec-io API Rules
SPECTRALJSON Schema 6
Standalone JSON Schema definitions describe the data models behind the API. We profile them so the shapes are validatable on their own — useful long after a single request is forgotten.
Standalone JSON Schema definitions for this provider's data models.
AmmunitionLoad
JSON SCHEMAApiContractRun
JSON SCHEMACaliber
JSON SCHEMAFirearmListItem
JSON SCHEMAFirearmSearchResult
JSON SCHEMASdkVerificationRun
JSON SCHEMASecurity Posture 3
Authentication, domain security, vulnerability disclosure, and trust-center signals — the evidence that a provider takes security seriously enough to document it. We profile it because you can't govern what you can't see.
Authentication, domain security, vulnerability disclosure, and trust-center signals.
Scopes 1
OAuth scopes are the vocabulary of least-privilege access. Profiling them shows exactly what an integration — or an agent acting on a user's behalf — is allowed to do.
OAuth scopes governing access to this provider's APIs.
Agentic Access 1
An x-agentic-access contract marks which operations are safe for an agent to run on its own and which need a human in the loop. It is the difference between an API an agent can use and one it can use safely.
Recommended x-agentic-access execution contracts for AI agents.
Resources
Every other property we hold for gunspec-io — documentation, portals, status pages, policies, and corporate surface — grouped by the job it does, following the integrator's arc from getting started to running in production.
Get Started 2
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 7
Pagination, idempotency, versioning, errors, and events
Scroll within the panel for all 7 ·
Build 3
SDKs, sample code, and the tooling you integrate with
Access & Security 5
Authentication, authorization, and security posture
Operate 4
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
Other 2
Properties that don't map to a standard resource type
← All providers · Data indexed from github.com/api-evangelist/gunspec-io · machine-readable index on apis.io
This is an independent, third-party profile of gunspec-io, published by API Evangelist. We do not operate, host, resell, or support these APIs, and we are not affiliated with or endorsed by the company unless stated above. Everything here is built from publicly available information — the company's own site, developer portal, documentation, public repositories, and the specifications it publishes for public use. Nothing is obtained by breaching a system, defeating an access control, or using credentials.
The Kin Score and Agent Readiness rating are independently calculated assessments of a company's public API artifacts, scored against a published rubric. They are not certifications, endorsements, security assessments, or audits.
Corrections, re-scores, and removal are free — no partnership or purchase required, and you do not need to justify the request. A removed company is recorded as unrated, never scored zero for having asked. Acknowledgement within one business day; removal within two.
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