API Directory | Jentic

Stripe API

Accept and process payments across 135+ currencies and 50+ payment methods including cards, bank debits, wallets, and buy-now-pay-later. The API provides 587 endpoints covering payment intents, subscriptions, invoicing, refunds, disputes, connected accounts, and checkout sessions. Handles PCI compliance, 3D Secure authentication, and automatic retry logic for failed charges.

Payments

OpenAI API

Generate text, images, embeddings, and audio with 126 endpoints spanning chat completions, assistants, fine-tuning, batch processing, and moderation. Supports GPT-4o, GPT-4, DALL-E 3, Whisper, and TTS models through a single unified REST interface with bearer-token authentication. Handles multi-turn conversations, function calling, vision inputs, and JSON mode for structured outputs.

AI/ML

Anthropic Messages API

Send prompts to Anthropic's Claude models for text generation, reasoning, and code tasks through the Messages API. Two endpoints cover the core flow: POST /messages for synchronous chat completions with system prompts, tool use, and large-context inputs, and POST /messages/count_tokens for cost-aware token estimation before a request is dispatched. Anthropic's documentation accepts either an API key in the X-API-Key header or an Authorization bearer token, and every call also carries a required anthropic-version header plus an optional anthropic-beta header for opting into preview features. Suited to agent workflows that need long-context reasoning, structured tool calls, or precise cost control.

AI/ML

GitHub v3 REST API

Jentic publishes the only available OpenAPI specification for GitHub v3 REST API, keeping it validated and agent-ready. The GitHub REST API is the developer-tools surface for the world's largest source-control and software collaboration platform - repositories, branches, pull requests, issues, code reviews, GitHub Actions workflows, security advisories, packages, and Apps. With 1,099 endpoints across themes including actions, billing, checks, code-scanning, dependabot, and dependency-graph, it powers most software development automation in use today.

Developer Tools

Slack Web API

Send messages, manage channels, upload files, and administer workspaces through 169 HTTP RPC-style endpoints. Supports real-time messaging, threaded conversations, emoji reactions, file sharing, user group management, app installation administration, and granular OAuth 2.0 scope-based permissions across Slack workspaces.

Communications

Google Gmail API

Send, receive, and organize email programmatically through Gmail mailboxes with support for threads, labels, drafts, and push notifications. Access 1.8 billion Gmail accounts' messaging infrastructure including attachment handling, search filtering, and real-time change notifications via pub/sub watches. Supports batch operations for bulk message management and granular OAuth scopes for least-privilege access control.

Communications

Google Calendar API

Create, modify, and query calendar events with attendee management, recurring event rules, and free/busy availability lookups across Google Calendar accounts. Access 37 endpoints covering event creation, calendar sharing, access control lists, real-time change notifications, and cross-calendar availability checks. Supports recurring events with RRULE syntax, timezone-aware scheduling, and video conferencing link generation.

Productivity

Google Drive API

Upload, download, search, and organize files and folders in Google Drive with fine-grained sharing permissions and real-time collaboration metadata. Access 58 endpoints covering file operations, shared drives, permission management, revision history, and change tracking across personal and team drives. Supports resumable uploads for files up to 5 TB and real-time change subscriptions via push notifications.

Storage

Google Sheets API

Read, write, and format data in Google Sheets spreadsheets programmatically. Supports creating spreadsheets, appending and updating cell values across ranges, batch operations for bulk reads and writes, developer metadata for custom annotations, and sheet-level management including copying between workbooks. Handles 17 endpoints covering single-cell to multi-range operations with OAuth 2.0 scoped access.

Productivity

Google YouTube Data API v3

Access and manage YouTube video content, channels, playlists, comments, live streams, and captions programmatically. Supports video search across YouTube's catalog of over 800 million videos, channel analytics retrieval, playlist curation, comment moderation, and live broadcast management. Enables both read-only access to public data via API keys and full account management via OAuth 2.0 scopes including upload, rating, and subscription operations.

Media

Notion API

Jentic publishes the only available OpenAPI specification for Notion API, keeping it validated and agent-ready. Notion is a workspace combining notes, databases, and project tracking inside a single block-based document model. The API exposes 42 endpoints covering pages, databases, blocks, users, comments, files, and views, including markdown-aware page reads and writes. It supports the operational tasks of programmatically reading workspace content, creating pages and databases, manipulating block trees, and integrating Notion with other systems.

Productivity

Linear App Linear API

Query and mutate issues, projects, cycles, teams, and workflows through Linear's GraphQL endpoint. Supports Bearer token authentication with personal API keys and OAuth 2.0 for third-party integrations. The single /graphql endpoint provides typed access to all Linear data including issues, comments, labels, milestones, roadmaps, and team configurations.

Developer Tools

Shopify REST Admin API

Expose full programmatic control over Shopify stores - products, variants, inventory, orders, fulfillments, customers, discounts, themes, and webhooks - through 273 REST endpoints. Supports multi-location inventory management, automated order workflows, and real-time event subscriptions for building custom storefronts, ERP integrations, and marketplace connectors.

E Commerce

Twilio REST API

Send and receive SMS and MMS messages, initiate and control voice calls, manage phone numbers, and handle conference calls across 180+ countries. Provides programmable communication building blocks including call recordings, transcriptions, SIP trunking, and queue management. Supports both domestic and international messaging with media attachments and delivery status callbacks.

Communications

Sendgrid Twilio SendGrid Mail API

Send transactional and marketing emails at scale over HTTP with support for templates, categories, open and click tracking, and batch scheduling. Group mail sends into batches that can be scheduled, paused, or cancelled by batch ID. Supports global and EU-regional endpoints for data residency compliance.

Communications

HubSpot CRM Custom Objects

Jentic publishes the only available OpenAPI specification for HubSpot CRM Custom Objects, keeping it validated and agent-ready. Define and operate on bespoke CRM object types that extend HubSpot beyond standard contacts, companies, deals, and tickets. Store industry-specific records - such as vehicles, properties, or subscriptions - with full association, search, batch, and merge support across the HubSpot CRM graph. Requires an Enterprise-tier HubSpot account.

CRM

Salesforce Shopper Products

Retrieve product details, pricing, promotions, availability, and category hierarchies for online storefronts powered by Salesforce Commerce Cloud. The API serves shopper-facing product data including variation attributes, promotional pricing, inventory levels, and images - enabling headless commerce experiences on any channel. Supports personalization via Shopper Context and server-side caching for high-traffic product listing pages.

E Commerce

Plaid The Plaid API

Connect applications to users' bank accounts for account verification, transaction history, and identity data across 12,000+ financial institutions. Plaid handles OAuth flows, credential rotation, and multi-factor authentication with each institution, returning normalised data through a single interface. Supports real-time balance checks, recurring transaction detection, and income verification workflows.

Finance

Airtable Web API

This page describes a curated, agent-optimized Jentic OpenAPI specification for Airtable Web API, scoped to the record and schema operations agents call most and kept validated and agent-ready. Airtable also documents its REST API and publishes its own OpenAPI document in its developer portal, covering a wider surface that includes SCIM provisioning and enterprise account administration. Airtable is a cloud database that combines spreadsheet familiarity with relational features such as linked records, formulas, and views. The 21 documented endpoints expose record-level CRUD inside a base/table, metadata for bases, tables, and fields, and webhook subscriptions for change notifications. Authentication uses bearer personal access tokens or OAuth 2.0 tokens with scoped permissions per base.

Storage

Mailchimp Marketing API

Send and track email campaigns, manage subscriber audiences, build automations, and analyze engagement across all marketing channels. Supports 274 endpoints covering campaigns, lists, automations, templates, landing pages, e-commerce integrations, and reporting with per-message open and click tracking. Audience segmentation uses behavioral and demographic conditions to target specific subscriber groups based on purchase history, engagement, and custom fields.

Marketing

Asana

Organize and track work across teams with projects, tasks, subtasks, custom fields, goals, and portfolios. Supports 167 endpoints covering task assignment, deadline management, progress tracking, and cross-team collaboration with granular permission controls and real-time event streaming.

Productivity

Xero Accounting API

Record and reconcile financial transactions, generate invoices, track payments, and produce financial reports for small and medium businesses. The API exposes 237 endpoints covering accounts, contacts, invoices, bank transactions, journals, and reporting - enabling full double-entry bookkeeping through programmatic access. Supports multi-currency transactions, tax calculations, and attachment management on all document types.

Finance

Squarespace Commerce API

Control commerce operations on Squarespace merchant sites - inventory adjustments, order retrieval and fulfillment, product and variant management, customer profiles, transaction history, and webhook subscriptions - through 27 REST endpoints. Enables external integrations for fulfillment providers, accounting tools, and inventory management systems to sync with Squarespace storefronts.

E Commerce

Autotask Datto Autotask PSA REST API

Datto Autotask PSA is a professional services automation platform widely used by managed service providers (MSPs) to manage tickets, contracts, time entries, billing, and resource scheduling. The REST API exposes a uniform CRUD-and-query surface across more than 200 entities - Tickets, Companies, Contacts, Contracts, Projects, Tasks, Time Entries, Invoices, Resources - with consistent /entityInformation, /query, and /{id} routes per entity. The result is over three thousand path-and-method combinations, all reachable from a single base URL once an API user is provisioned in the Autotask UI.

CRM

Octopus Server API

Octopus Server API powers Octopus Deploy, a release orchestration and continuous deployment platform used to ship software to any environment. The API exposes 1,775 endpoints covering projects, releases, deployments, runbooks, environments, accounts, certificates, build information, tenants, and audit streams. Use it to automate release creation, trigger deployments to dev/staging/production, manage variable sets and accounts across spaces, and enforce compliance and approval policies.

Developer Tools

Singaporechatbots Sg Facility Chatbot API documentation.

FacilityBot API for facility management, fault reporting, and building maintenance. The API exposes 1320 endpoints.

Communications

Amazonaws Amazon Elastic Compute Cloud

Jentic publishes the only available OpenAPI specification for Amazon Elastic Compute Cloud, keeping it validated and agent-ready. Amazon EC2 provides resizable compute capacity in AWS, and its API is the foundational control plane for EC2 instances, EBS volumes, VPC networking, security groups, and a broad set of related compute primitives. With more than a thousand operations, the API spans instance lifecycle, AMIs, key pairs, networking (VPC, subnets, route tables, NAT, VPN), elastic IP addresses, transit gateways, and capacity reservations. Use it when an agent needs to provision compute, manage networking, or automate any AWS infrastructure-as-API workflow.

Cloud Infrastructure

GitHub v3 REST API (GHEC)

The GitHub v3 REST API for GitHub Enterprise Cloud (GHEC) exposes the full developer-platform surface - repositories, issues, pull requests, Actions workflows, code scanning, Dependabot, billing, and enterprise-level admin operations. Agents can manage source control, drive CI/CD, audit security alerts, and administer organisations and enterprise accounts. Authentication is a Bearer token (personal access token, GitHub App installation token, or fine-grained token) and the spec covers more than 1,000 endpoints across 70+ tag groups.

Developer Tools

Gcore OpenAPI

The Gcore API is the unified control plane for Gcore's global cloud platform - covering compute (bare metal, virtual instances, GPU, containers, FaaS, managed Kubernetes), networking (load balancers, floating IPs, security groups), CDN, DNS, edge storage, video streaming, AI inference (Everywhere Inference), DDoS protection, and a WAAP (web application and API protection) suite. With 1,123 endpoints across 130+ tag groups, it gives agents end-to-end provisioning and operational control of multi-region cloud workloads. Authentication uses an API key passed in the Authorization header.

Cloud Infrastructure

Procore API

The Procore API provides programmatic access to a construction management platform with over 1,000 endpoints spanning project management, quality and safety inspections, financial tracking, field productivity, workforce management, and document control. It supports the full construction project lifecycle from pre-construction bidding through punch list closeout, with resources for RFIs, submittals, change orders, daily logs, timesheets, and incident reporting.

Productivity

Mist API

The Mist API is the cloud management interface for Juniper Mist, an AI-driven enterprise wireless, wired, and WAN platform. It exposes 974 endpoints across organizations, sites, devices (APs, switches, gateways), wireless LANs, location services, and the Marvis virtual network assistant. Use it to provision networks, push configuration templates, query client and device telemetry, manage RF settings, and run automation against multi-site deployments.

Cloud Infrastructure

Kubernetes

The Kubernetes API is the control-plane interface for any Kubernetes cluster, exposing 933 path-method combinations across core resources, apps, batch, networking, RBAC, custom resources, and admissions webhooks for the v1.10.0 surface in this spec. Clients send REST requests to the API server to create, read, update, and watch declarative objects such as Pods, Deployments, Services, ConfigMaps, and Namespaces, and the controllers reconcile actual state to match. Authentication is typically a bearer token presented as the Authorization header, and resource access is gated by RBAC roles bound to users or service accounts. The same API serves kubectl, Helm, and operators, which makes it the canonical integration target for any tool that automates a cluster.

Cloud Infrastructure

Connect AI Agents to any API

Browse APIs

Stripe API

OpenAI API

Anthropic Messages API

GitHub v3 REST API

Slack Web API

Google Gmail API

Google Calendar API

Google Drive API

Google Sheets API

Google YouTube Data API v3

Notion API

Linear App Linear API

Shopify REST Admin API

Twilio REST API

Sendgrid Twilio SendGrid Mail API

HubSpot CRM Custom Objects

Salesforce Shopper Products

Plaid The Plaid API

Airtable Web API

Mailchimp Marketing API

Asana

Xero Accounting API

Squarespace Commerce API

Autotask Datto Autotask PSA REST API

Octopus Server API

Singaporechatbots Sg Facility Chatbot API documentation.

Amazonaws Amazon Elastic Compute Cloud

GitHub v3 REST API (GHEC)

Gcore OpenAPI

Procore API

Mist API

Kubernetes

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