Helcim · Agentic Access

Helcim Agentic Access

x-agentic-access generated

Helcim exposes 48 API operations that an AI agent could call, of which 25 are state-changing ‘acting’ operations. This is a recommended x-agentic-access execution contract — the scope, audience, consequence tier, short-lived token constraints, and escalation each action should carry before it is handed to an autonomous agent.

By consequence: 23 read, 9 write, and 16 physical.

Contracts are classified heuristically from the provider’s OpenAPI and refresh on every APIs.io network build; audience is bound per deployment. The model follows Curity’s Access Intelligence (apidays Munich 2026). Browse every provider’s agent contracts at agentic-access.apis.io.

PaymentsCanadaPayment GatewayPayment ProcessingAcquiringMerchant ServicesACHInvoicingCard TerminalSmall Business
Operations: 48 Acting: 25 Human-in-the-loop: 0 Method: generated

By consequence

read 23 write 9 physical 16

Highest-consequence actions

The physical and safety-critical operations an agent could invoke — the ones that most warrant scoped tokens, tight TTLs, and escalation. Full per-operation contracts are in the source below.

MethodPathConsequenceHuman-in-loop
PUT /ach/batches/{batchId}/settle physical conditional
PATCH /ach/transactions/{transactionId}/cancel physical conditional
PUT /ach/transactions/{transactionId}/refund physical conditional
PUT /ach/transactions/{transactionId}/void physical conditional
PUT /ach/withdraw physical conditional
POST /devices/{code}/payment/purchase physical conditional
POST /devices/{code}/payment/refund physical conditional
POST /invoices physical conditional
PUT /invoices/{invoiceId} physical conditional
POST /payment/capture physical conditional
POST /payment/preauth physical conditional
POST /payment/purchase physical conditional
POST /payment/refund physical conditional
POST /payment/reverse physical conditional
POST /payment/verify physical conditional
POST /payment/withdraw physical conditional

Source

Agentic Access

Raw ↑ 
generated: '2026-07-24'
method: generated
source: openapi/helcim-api.json
description: Recommended x-agentic-access execution contracts, classified heuristically from
  the OpenAPI. A governance starting point for exposing this API to AI agents — review and bind
  audience per deployment. See research/curity/agentic-governance/.
summary:
  operations: 48
  by_action_class:
    connected: 23
    acting: 25
  by_consequence:
    read: 23
    physical: 16
    write: 9
  human_in_the_loop_required: 0
operations:
- path: /connection-test
  method: get
  operationId: connectionTest
  x-agentic-access:
    action-class: connected
    consequence: read
    subject: optional
    token:
      max-ttl: 3600
    audit: none
- path: /payment/purchase
  method: post
  operationId: purchase
  x-agentic-access:
    action-class: acting
    consequence: physical
    subject: required
    audience: null
    token:
      max-ttl: 300
      exchange: true
      purpose-required: true
    escalation:
      human-in-the-loop: conditional
      triggers:
      - abnormal
      - high-value
    audit: required
- path: /payment/preauth
  method: post
  operationId: preauth
  x-agentic-access:
    action-class: acting
    consequence: physical
    subject: required
    audience: null
    token:
      max-ttl: 300
      exchange: true
      purpose-required: true
    escalation:
      human-in-the-loop: conditional
      triggers:
      - abnormal
      - high-value
    audit: required
- path: /payment/capture
  method: post
  operationId: capture
  x-agentic-access:
    action-class: acting
    consequence: physical
    subject: required
    audience: null
    token:
      max-ttl: 300
      exchange: true
      purpose-required: true
    escalation:
      human-in-the-loop: conditional
      triggers:
      - abnormal
      - high-value
    audit: required
- path: /payment/verify
  method: post
  operationId: verify
  x-agentic-access:
    action-class: acting
    consequence: physical
    subject: required
    audience: null
    token:
      max-ttl: 300
      exchange: true
      purpose-required: true
    escalation:
      human-in-the-loop: conditional
      triggers:
      - abnormal
      - high-value
    audit: required
- path: /payment/refund
  method: post
  operationId: refund
  x-agentic-access:
    action-class: acting
    consequence: physical
    subject: required
    audience: null
    token:
      max-ttl: 300
      exchange: true
      purpose-required: true
    escalation:
      human-in-the-loop: conditional
      triggers:
      - abnormal
      - high-value
    audit: required
- path: /payment/reverse
  method: post
  operationId: reverse
  x-agentic-access:
    action-class: acting
    consequence: physical
    subject: required
    audience: null
    token:
      max-ttl: 300
      exchange: true
      purpose-required: true
    escalation:
      human-in-the-loop: conditional
      triggers:
      - abnormal
      - high-value
    audit: required
- path: /payment/withdraw
  method: post
  operationId: withdraw
  x-agentic-access:
    action-class: acting
    consequence: physical
    subject: required
    audience: null
    token:
      max-ttl: 300
      exchange: true
      purpose-required: true
    escalation:
      human-in-the-loop: conditional
      triggers:
      - abnormal
      - high-value
    audit: required
- path: /card-batches
  method: get
  operationId: get-card-batches
  x-agentic-access:
    action-class: connected
    consequence: read
    subject: optional
    token:
      max-ttl: 3600
    audit: none
- path: /card-batches/{cardBatchId}
  method: get
  operationId: get-card-batch
  x-agentic-access:
    action-class: connected
    consequence: read
    subject: optional
    token:
      max-ttl: 3600
    audit: none
- path: /card-batches/{cardBatchId}/settle
  method: post
  operationId: settle-card-batch
  x-agentic-access:
    action-class: acting
    consequence: write
    subject: required
    audience: null
    token:
      max-ttl: 900
    escalation:
      human-in-the-loop: conditional
      triggers:
      - abnormal
      - high-value
    audit: required
- path: /card-transactions
  method: get
  operationId: get-card-transactions
  x-agentic-access:
    action-class: connected
    consequence: read
    subject: optional
    token:
      max-ttl: 3600
    audit: none
- path: /card-transactions/{cardTransactionId}
  method: get
  operationId: get-card-transaction
  x-agentic-access:
    action-class: connected
    consequence: read
    subject: optional
    token:
      max-ttl: 3600
    audit: none
- path: /customers
  method: get
  operationId: get-customers
  x-agentic-access:
    action-class: connected
    consequence: read
    subject: optional
    token:
      max-ttl: 3600
    audit: none
- path: /customers
  method: post
  operationId: create-customer
  x-agentic-access:
    action-class: acting
    consequence: write
    subject: required
    audience: null
    token:
      max-ttl: 900
    escalation:
      human-in-the-loop: conditional
      triggers:
      - abnormal
      - high-value
    audit: required
- path: /customers/{customerId}
  method: get
  operationId: get-customer
  x-agentic-access:
    action-class: connected
    consequence: read
    subject: optional
    token:
      max-ttl: 3600
    audit: none
- path: /customers/{customerId}
  method: put
  operationId: update-customer
  x-agentic-access:
    action-class: acting
    consequence: write
    subject: required
    audience: null
    token:
      max-ttl: 900
    escalation:
      human-in-the-loop: conditional
      triggers:
      - abnormal
      - high-value
    audit: required
- path: /customers/{customerId}/cards
  method: get
  operationId: get-customer-cards
  x-agentic-access:
    action-class: connected
    consequence: read
    subject: optional
    token:
      max-ttl: 3600
    audit: none
- path: /customers/{customerId}/cards/{cardId}
  method: get
  operationId: get-customer-card
  x-agentic-access:
    action-class: connected
    consequence: read
    subject: optional
    token:
      max-ttl: 3600
    audit: none
- path: /customers/{customerId}/cards/{cardId}
  method: delete
  operationId: delete-customer-card
  x-agentic-access:
    action-class: acting
    consequence: write
    subject: required
    audience: null
    token:
      max-ttl: 900
    escalation:
      human-in-the-loop: conditional
      triggers:
      - abnormal
      - high-value
    audit: required
- path: /customers/{customerId}/cards/{cardId}/default
  method: patch
  operationId: set-customer-card-default
  x-agentic-access:
    action-class: acting
    consequence: write
    subject: required
    audience: null
    token:
      max-ttl: 900
    escalation:
      human-in-the-loop: conditional
      triggers:
      - abnormal
      - high-value
    audit: required
- path: /customers/{customerId}/pads
  method: get
  operationId: get-pads
  x-agentic-access:
    action-class: connected
    consequence: read
    subject: optional
    token:
      max-ttl: 3600
    audit: none
- path: /customers/{customerId}/bank-accounts
  method: get
  operationId: get-customer-bank-accounts
  x-agentic-access:
    action-class: connected
    consequence: read
    subject: optional
    token:
      max-ttl: 3600
    audit: none
- path: /customers/{customerId}/bank-accounts
  method: post
  operationId: create-bank-account
  x-agentic-access:
    action-class: acting
    consequence: write
    subject: required
    audience: null
    token:
      max-ttl: 900
    escalation:
      human-in-the-loop: conditional
      triggers:
      - abnormal
      - high-value
    audit: required
- path: /customers/{customerId}/bank-accounts/request-new
  method: get
  operationId: request-new-bank-account
  x-agentic-access:
    action-class: connected
    consequence: read
    subject: optional
    token:
      max-ttl: 3600
    audit: none
- path: /customers/{customerId}/bank-accounts/{bankAccountId}
  method: get
  operationId: get-customer-bank-account
  x-agentic-access:
    action-class: connected
    consequence: read
    subject: optional
    token:
      max-ttl: 3600
    audit: none
- path: /customers/{customerId}/bank-accounts/{bankAccountId}
  method: delete
  operationId: delete-customer-bank-account
  x-agentic-access:
    action-class: acting
    consequence: write
    subject: required
    audience: null
    token:
      max-ttl: 900
    escalation:
      human-in-the-loop: conditional
      triggers:
      - abnormal
      - high-value
    audit: required
- path: /customers/{customerId}/bank-accounts/{bankAccountId}/default
  method: patch
  operationId: set-customer-bank-account-default
  x-agentic-access:
    action-class: acting
    consequence: write
    subject: required
    audience: null
    token:
      max-ttl: 900
    escalation:
      human-in-the-loop: conditional
      triggers:
      - abnormal
      - high-value
    audit: required
- path: /customers/{customerId}/bank-accounts/{bankAccountId}/pads/{padId}
  method: get
  operationId: get-pad
  x-agentic-access:
    action-class: connected
    consequence: read
    subject: optional
    token:
      max-ttl: 3600
    audit: none
- path: /customers/{customerId}/bank-accounts/{bankAccountId}/pads/{padId}
  method: put
  operationId: update-pad
  x-agentic-access:
    action-class: acting
    consequence: write
    subject: required
    audience: null
    token:
      max-ttl: 900
    escalation:
      human-in-the-loop: conditional
      triggers:
      - abnormal
      - high-value
    audit: required
- path: /invoices
  method: post
  operationId: create-invoice
  x-agentic-access:
    action-class: acting
    consequence: physical
    subject: required
    audience: null
    token:
      max-ttl: 300
      exchange: true
      purpose-required: true
    escalation:
      human-in-the-loop: conditional
      triggers:
      - abnormal
      - high-value
    audit: required
- path: /invoices
  method: get
  operationId: get-invoices
  x-agentic-access:
    action-class: connected
    consequence: read
    subject: optional
    token:
      max-ttl: 3600
    audit: none
- path: /invoices/{invoiceId}
  method: get
  operationId: get-invoice
  x-agentic-access:
    action-class: connected
    consequence: read
    subject: optional
    token:
      max-ttl: 3600
    audit: none
- path: /invoices/{invoiceId}
  method: put
  operationId: update-invoice
  x-agentic-access:
    action-class: acting
    consequence: physical
    subject: required
    audience: null
    token:
      max-ttl: 300
      exchange: true
      purpose-required: true
    escalation:
      human-in-the-loop: conditional
      triggers:
      - abnormal
      - high-value
    audit: required
- path: /ach/withdraw
  method: put
  operationId: ach-withdraw
  x-agentic-access:
    action-class: acting
    consequence: physical
    subject: required
    audience: null
    token:
      max-ttl: 300
      exchange: true
      purpose-required: true
    escalation:
      human-in-the-loop: conditional
      triggers:
      - abnormal
      - high-value
    audit: required
- path: /ach/transactions
  method: get
  operationId: get-many-ach-transactions
  x-agentic-access:
    action-class: connected
    consequence: read
    subject: optional
    token:
      max-ttl: 3600
    audit: none
- path: /ach/transactions/{transactionId}
  method: get
  operationId: get-ach-transaction-by-id
  x-agentic-access:
    action-class: connected
    consequence: read
    subject: optional
    token:
      max-ttl: 3600
    audit: none
- path: /ach/transactions/{transactionId}/refund
  method: put
  operationId: ach-refund
  x-agentic-access:
    action-class: acting
    consequence: physical
    subject: required
    audience: null
    token:
      max-ttl: 300
      exchange: true
      purpose-required: true
    escalation:
      human-in-the-loop: conditional
      triggers:
      - abnormal
      - high-value
    audit: required
- path: /ach/transactions/{transactionId}/void
  method: put
  operationId: ach-void
  x-agentic-access:
    action-class: acting
    consequence: physical
    subject: required
    audience: null
    token:
      max-ttl: 300
      exchange: true
      purpose-required: true
    escalation:
      human-in-the-loop: conditional
      triggers:
      - abnormal
      - high-value
    audit: required
- path: /ach/transactions/{transactionId}/cancel
  method: patch
  operationId: ach-cancel
  x-agentic-access:
    action-class: acting
    consequence: physical
    subject: required
    audience: null
    token:
      max-ttl: 300
      exchange: true
      purpose-required: true
    escalation:
      human-in-the-loop: conditional
      triggers:
      - abnormal
      - high-value
    audit: required
- path: /ach/batches
  method: get
  operationId: get-many-ach-batches
  x-agentic-access:
    action-class: connected
    consequence: read
    subject: optional
    token:
      max-ttl: 3600
    audit: none
- path: /ach/batches/{batchId}/settle
  method: put
  operationId: ach-batch-settle
  x-agentic-access:
    action-class: acting
    consequence: physical
    subject: required
    audience: null
    token:
      max-ttl: 300
      exchange: true
      purpose-required: true
    escalation:
      human-in-the-loop: conditional
      triggers:
      - abnormal
      - high-value
    audit: required
- path: /card-terminals
  method: get
  operationId: card-terminals
  x-agentic-access:
    action-class: connected
    consequence: read
    subject: optional
    token:
      max-ttl: 3600
    audit: none
- path: /devices
  method: get
  operationId: get-devices
  x-agentic-access:
    action-class: connected
    consequence: read
    subject: optional
    token:
      max-ttl: 3600
    audit: none
- path: /devices/{code}
  method: get
  operationId: get-device
  x-agentic-access:
    action-class: connected
    consequence: read
    subject: optional
    token:
      max-ttl: 3600
    audit: none
- path: /devices/{code}/payment/purchase
  method: post
  operationId: start-purchase
  x-agentic-access:
    action-class: acting
    consequence: physical
    subject: required
    audience: null
    token:
      max-ttl: 300
      exchange: true
      purpose-required: true
    escalation:
      human-in-the-loop: conditional
      triggers:
      - abnormal
      - high-value
    audit: required
- path: /devices/{code}/payment/refund
  method: post
  operationId: start-refund
  x-agentic-access:
    action-class: acting
    consequence: physical
    subject: required
    audience: null
    token:
      max-ttl: 300
      exchange: true
      purpose-required: true
    escalation:
      human-in-the-loop: conditional
      triggers:
      - abnormal
      - high-value
    audit: required
- path: /devices/{code}/ping
  method: get
  operationId: ping-device
  x-agentic-access:
    action-class: connected
    consequence: read
    subject: optional
    token:
      max-ttl: 3600
    audit: none