Install Jentic One Beta
Jentic One is a self-hosted execution layer for AI agents. It lets your agent call the Checkout.com Payment Platform 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%2Fcheckout.com%2Fcheckout" | 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%2Fcheckout.com%2Fcheckout" | 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 Checkout.com Payment Platform API.
Tokenise card details
Create and retrieve payments
Capture, refund, and void a payment
List the actions taken on a payment
Create and manage customers
GET STARTED
Patterns agents use Checkout.com Payment Platform API for, with concrete tasks.
★ Accept payments
Take card payments inside an agent workflow. The agent tokenises the card details and creates a payment, then reads it back to confirm the outcome.
Call POST /tokens, then POST /payments to charge the card
Settle and reverse payments
Complete or unwind a charge after authorisation. The agent captures an authorised payment, refunds a settled one, or voids one that should not go through.
Call POST /payments/{id}/captures, /refunds, or /voids as needed
Manage customers
Keep buyer records tied to payments. The agent creates customers and reads them back so repeat charges can reference a stored customer.
Call POST /customers to create a customer, GET /customers/{id} to read it
42 endpoints — the checkout.
METHOD
PATH
DESCRIPTION
/tokens
Tokenise card details
/payments
Create a payment
/payments/{id}
Retrieve a payment
/payments/{id}/captures
Capture an authorised payment
/payments/{id}/refunds
Refund a payment
/payments/{id}/voids
Void a payment
/customers
Create a customer
/customers/{id}
Retrieve a customer
/tokens
Tokenise card details
/payments
Create a payment
/payments/{id}
Retrieve a payment
/payments/{id}/captures
Capture an authorised payment
/payments/{id}/refunds
Refund a payment
/payments/{id}/voids
Void a payment
/customers
Create a customer
/customers/{id}
Retrieve a customer
What agents get from Jentic-routed access to this vendor.
Setup
Wiring the Checkout.com Payment Platform API by hand means managing a secret key, pointing at the api.checkout.com host, and shaping the payment requests yourself. Through Jentic you install once, import the Checkout.com Payment Platform API from the Jentic API Directory, store the key once, and your agent calls it.
Permission scoping
You decide which operations your agent may call, so it can read payments without being able to refund or void them. Because the payment id sits in the URL path (/payments/{id}), a rule can pin the agent to a single payment rather than the whole account.
Credential isolation
Your Checkout.com secret key, sent as a bearer token, along with any OAuth2 credentials, 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 card payment' or 'refund a payment', and Jentic returns the matching operation with its input schema so the agent calls the right endpoint without reading the reference.
Alternatives and complements available in the Jentic catalogue.
Specific to using Checkout.com Payment Platform API through Jentic.
What authentication does the Checkout.com Payment Platform API use?
It authenticates requests with a secret key sent as a bearer token, and supports OAuth2 for applicable flows. Through Jentic, those credentials are stored encrypted in your Jentic One instance and injected at execution time, so they never enter the agent context.
What can an agent do with the Checkout.com Payment Platform API?
It can tokenise card details, create and retrieve payments, capture, refund, and void a payment, list the actions taken on a payment, and create and manage customers. The API is built for accepting card payments online.
How does an agent connect to the Checkout.com Payment Platform API through Jentic?
Install Jentic One, import the Checkout.com Payment Platform API from the Jentic API Directory, and store the secret key once. Your agent then calls the operations you have allowed without handling the raw key.
What are the rate limits for the Checkout.com Payment Platform API?
Rate limits are not specified in the OpenAPI spec. Check the Checkout.com documentation for current limits. Through Jentic, retries are handled in the execution layer.
How many endpoints does the Checkout.com Payment Platform API have?
The Checkout.com Payment Platform API exposes 42 endpoints covering payments, customers, tokens, and related operations.
Can I limit what my agent is allowed to do with the Checkout.com Payment Platform API?
Yes. Jentic One is self-hosted by you, so your own rules decide which operations your agent may call. You can let it read payments without being able to refund or void them, and because the payment id sits in the URL path, such as /payments/{id}, a rule can pin the agent to a single payment.
For Agents
Accept and manage card payments through the Checkout.com Payment Platform API. Tokenise cards, create payments, capture, refund, and void them, and manage customers. Secured with a secret key sent as a bearer token, with OAuth2 for applicable flows.
Use for: Create a payment, Capture an authorised payment, Refund a payment, Void a payment
Not supported: Does not handle payouts or dispute management - use it to accept, capture, refund, and void card payments and manage the customers behind them.
The Checkout.com Payment Platform API lets an agent accept and manage card payments end to end. It can tokenise card details, create and retrieve payments, capture, refund, and void a payment, list the actions taken on a payment, and create and manage customers. It is a payment processing service for online businesses.
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>