Install Jentic One Beta
Jentic One is a self-hosted execution layer for AI agents. It lets your agent call the Sendcrux API, or any other public or private API you need. You set the rules, the agent never sees your credentials, and every call is logged.
Two steps, two machines. Install the instance in a safe environment, then register your agent from wherever it runs.
Step 1: Jentic One Host machine
# On the machine that will host your Jentic One instance:
curl -fsSL "https://jentic.com/install.sh?src=apis&api=%2Fapis%2Fsendcrux.com%2Fsendcrux" | shStep 2: Agent machine
# On the machine where your agent runs (keep this separate from the instance):
curl -fsSL "https://jentic.com/install.sh?src=apis&api=%2Fapis%2Fsendcrux.com%2Fsendcrux" | sh
jentic register # connects your agent to your Jentic One instanceJentic One is in public beta. The setup above keeps your agent separate from the instance, which is what you want before using real credentials: an agent running as the same OS user as Jentic One can read its stored keys directly. Just evaluating? A single local install is fine to start. See the secure deployment guide for the tiers.
What an agent can do with Sendcrux API.
Create campaign
List campaigns
Get campaign
Query and filter Sendcrux API records by parameters
Monitor Sendcrux API operational status and events
GET STARTED
Patterns agents use Sendcrux API for, with concrete tasks.
★ Marketing Operations
Use the Sendcrux API to perform marketing operations programmatically. The API provides 5 endpoints covering core functionality including create campaign, list campaigns, get campaign.
Call POST /campaigns to create campaign
Automated Campaigns Management
Automate campaigns operations by combining multiple Sendcrux API endpoints. Agents can list campaigns and then get campaign in a single workflow.
Call GET /campaigns to list campaigns, then verify the result
AI Agent Integration via Jentic
AI agents discover and call Sendcrux API endpoints through Jentic without managing credentials directly. An agent searches for the required operation by intent, receives the matching endpoint schema, and executes the call with Jentic-managed authentication. This eliminates the need to read API documentation or handle apiKey tokens manually.
Search Jentic for 'create campaign', load the operation schema, and execute with Jentic-managed credentials
5 endpoints — cold email outreach and automation platform api for managing email campaigns, domain warm-up, and deliverability.
METHOD
PATH
DESCRIPTION
/campaigns
Create campaign
/campaigns
List campaigns
/campaigns/{id}
Get campaign
/contacts
Create contact
/contacts
List contacts
/campaigns
Create campaign
/campaigns
List campaigns
/campaigns/{id}
Get campaign
/contacts
Create contact
/contacts
List contacts
What agents get from Jentic-routed access to this vendor.
Setup
Wiring the Sendcrux API by hand means learning its X-API-Key header auth, calling api.sendcrux.com/v1, and managing campaign and contact payloads yourself. Through Jentic you install once, import the Sendcrux API from the API Directory, store the key once, and your agent calls it.
Permission scoping
Sendcrux puts the campaign id in the URL path (/campaigns/{id}), so a rule can pin your agent to reading one campaign. You choose the operations it may call, so campaign or contact creation is not included unless you add it.
Credential isolation
Your Sendcrux API key is stored once, encrypted, by your own Jentic One instance and injected at execution time. It never enters the agent's prompt, logs, or context.
Intent-based discovery
Agents search Jentic by intent such as 'create a campaign' or 'list contacts', and Jentic returns the matching Sendcrux API operation with its input schema so the agent calls the right endpoint without browsing the reference docs.
Alternatives and complements available in the Jentic catalogue.
Specific to using Sendcrux API through Jentic.
What authentication does the Sendcrux API use?
The Sendcrux API uses an API key passed in the `X-API-Key` header. Through Jentic, these credentials are stored encrypted in your Jentic One instance and injected at execution time, so raw secrets never enter the agent context.
Can I create campaign with the Sendcrux API?
Yes. Use the POST /campaigns endpoint. The API returns structured JSON responses that agents can parse and act on directly.
What are the rate limits for the Sendcrux API?
Rate limits are not specified in the OpenAPI spec. Check the vendor documentation for current limits. Through Jentic, rate limiting is handled automatically with retry logic built into the execution layer.
How do I create campaign through Jentic?
Install the Jentic SDK with pip install jentic, authenticate through Jentic One, the self-hosted execution layer, then search for 'create campaign'. Jentic returns the matching Sendcrux API operation with its input schema. Load the schema and execute the call - credentials are injected automatically.
How many endpoints does the Sendcrux API have?
The Sendcrux API exposes 5 endpoints covering campaigns, contacts operations.
Can I limit what my agent is allowed to do with the Sendcrux API?
Yes. Because you run Jentic One yourself, your own rules decide which Sendcrux operations and credentials the agent may use. You can allow it to only list or get campaigns (GET /campaigns and GET /campaigns/{id}) while leaving campaign and contact creation (POST /campaigns, POST /contacts) off the allowed list. Since Sendcrux puts the campaign id in the URL path, a rule can even pin the agent to reading a single campaign.
Know of an official OpenAPI document? Contribute it →
For Agents
Programmatically create campaign, list campaigns. Covers 5 operations with apiKey authentication.
Use for: I need to campaign, I want to campaigns, Search for campaign, Find all contact
Not supported: Does not handle payments, communications, or crm - use for marketing only.
Cold email outreach and automation platform API for managing email campaigns, domain warm-up, and deliverability. The API exposes 5 endpoints secured with apiKey authentication.
This API is usable in Jentic One now. Its AI-readiness score against Jentic's framework shows where it stands today and where improvements would make it even easier for agents to use.
Base layer of spec validity and structural soundness.
Aggregated quality score from linter diagnostics, weighted by severity.
Percentage of `$ref` references that resolve successfully.
Checks whether the API description parses successfully and conforms to its declared specification (e.g., OpenAPI).
Structural correctness score based on schema issues using logarithmic dampening.
Clarity, completeness, and ingestion readiness for developers and tooling.
How richly the API is illustrated with examples.
Percentage of examples that conform to their schemas.
Percentage of operations with complete response definitions (success, client error, server error).
Health of API ingestion, bundling, and resolution within Jentic pipelines.
Semantic breadth, depth, and agent comprehension for AI systems.
Coverage of descriptions across API elements.
Coverage of RFC 9457 Problem Details for error responses.
Coverage, uniqueness, and casing consistency of operationIds for AI inference.
Coverage of summaries across operations/tags/info.
Functional utility, complexity comfort, and AI orchestration readiness.
Agent comfort level based on API operational and structural complexity.
Trust, risk posture, and security compliance.
Average quality of security schemes based on authentication method strength (weakest link for OAuth2).
Findability, semantic richness, and reasoning readiness.
Clarity and depth of descriptions across API elements.
Score it yourself
Every API in the directory is allowlisted, so you can re-score it with no key required.
npx @jentic/api-scorecard-cli score <openapi-url>