Work with this as data
Every API 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 apis
7 MCP tools reach this
find_apisBrowse and filter every API in the catalog.get_api_artifactsOne API's artifacts, grouped by type.get_openapiThe primary OpenAPI for this API.find_similar_apisAPIs that look like this one.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.
Call it yourself
curl for this page
This API
curl "https://apis.io/api/v1/apis/guntab-users-api"
All apis
curl "https://apis.io/api/v1/apis?limit=25"
Discovery needs no key. Ratings and market analysis are Pro.
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.
OpenAPI Specification
openapi: 3.2.0
info:
title: GunTab REST FFLs Users API
description: The GunTab REST API allows online firearms marketplaces and retail websites to integrate safe and convenient firearms payment processing, manage invoices (payment requests), confirm and fulfill orders, validate FFLs, and receive webhook events for transaction lifecycle changes.
version: 1.0.0
contact:
name: GunTab
url: https://www.guntab.com/documentation/rest-api
license:
name: Proprietary
servers:
- url: https://api.guntab.com/v1
description: Production
security:
- TokenAuth: []
tags:
- name: Users
description: Marketplace user lookup
paths:
/users/{email}:
get:
tags:
- Users
summary: Read a user
description: Marketplace-only endpoint to look up a user by URL-encoded email.
operationId: readUser
parameters:
- in: path
name: email
required: true
schema:
type: string
format: email
description: URL-encoded email address.
responses:
'200':
description: User found
content:
application/json:
schema:
$ref: '#/components/schemas/User'
'404':
$ref: '#/components/responses/Error'
components:
schemas:
ErrorResponse:
type: object
properties:
errors:
type: array
items:
type: string
User:
type: object
properties:
email:
type: string
format: email
verified:
type: boolean
responses:
Error:
description: Error response
content:
application/json:
schema:
$ref: '#/components/schemas/ErrorResponse'
securitySchemes:
TokenAuth:
type: apiKey
in: header
name: Authorization
description: 'Format: `Token {token_uuid}` issued to verified email users.'