Cash App
Cash App is a consumer mobile-first financial services platform operated by Block, Inc. (formerly Square, Inc.), a publicly traded company. Cash App is not itself a chartered bank; its banking, card, and lending features are delivered through partner institutions (deposit accounts and the Cash App Card are issued by partner banks, historically Sutton Bank and Lincoln Savings Bank; brokerage and bitcoin services run through Block subsidiaries). Its public developer surface is a merchant/PSP payment-acceptance product, not a consumer-permissioned data-access API - Cash App Pay lets partners and payment service providers charge customers directly from their Cash App balance or linked funding source, and the Afterpay (Cash App Afterpay) buy-now-pay-later product is offered through the same portal. Block runs a real, public first-party developer portal at developers.cash.app (built on Fern) that publishes downloadable OpenAPI 3.1 specifications for the Cash App Pay Partner API (Customer Request, Network, and Management APIs on api.cash.app) and the Afterpay Global API (on global-api.afterpay.com). Consumer-side account data is reached by third parties through aggregators (e.g. Plaid) rather than a first-party FDX data-access API; no FDX participation or CFPB Section 1033 data-rights posture is documented in the developer portal.
Cash App publishes 25 API contracts indexed on the APIs.io network, including Add Cash App Pay To Your Site API, Balances API, Billing Agreements (Deprecated) API, and 22 more. Tagged areas include Financial Services, Payments, United States, Fintech, and Neobank.
The Cash App catalog on APIs.io includes 1 event-driven AsyncAPI specification, 1 JSON-LD context, and 1 Spectral governance ruleset.
Cash App’s developer surface includes engineering blog, API reference, authentication, documentation, support, getting-started guide, signup flow, and 48 more developer resources.
What this lets a business do 1
Business capabilities this provider's published APIs can perform, derived from its own contracts. Browse all capabilities →
Kin Score
Markets this provider is in provisional
The Kin Score Market layer reads a provider inside its market: its position, and how deep its integrations go. Depth is only comparable within a position. Provisional and unweighted: not part of the Kin Score or agent readiness.
| Market | Position | Depth | Registered MCP server | Declares compatibility |
|---|---|---|---|---|
| Payments | core | 38.4 | - | - |
Registered MCP server and declares compatibility are report only — not weighted. Undeclared means we found nothing we can read, so there is no number: we never infer integrations.
APIs 25
Individual APIs this provider publishes, each with its own machine-readable definition.
Cash App Add Cash App Pay To Your Site API
The Add Cash App Pay To Your Site API from Cash App — 0 operation(s) for add cash app pay to your site.
Cash App Balances API
The balances API from Cash App — 2 operation(s) for balances.
Cash App Billing Agreements (Deprecated) API
The Billing Agreements (Deprecated) API from Cash App — 0 operation(s) for billing agreements (deprecated).
Cash App Brands API
The brands API from Cash App — 2 operation(s) for brands.
Cash App Customer Request API
The Customer Request API API from Cash App — 0 operation(s) for customer request api.
Cash App Customers API
The customers API from Cash App — 5 operation(s) for customers.
Cash App Disputes API
The disputes API from Cash App — 8 operation(s) for disputes.
Cash App Grants Afterpay API
The Grants Afterpay API from Cash App — 0 operation(s) for grants afterpay.
Cash App Merchants API
The merchants API from Cash App — 2 operation(s) for merchants.
Cash App Network API
The Network API API from Cash App — 0 operation(s) for network api.
Cash App Payments API
The payments API from Cash App — 6 operation(s) for payments.
Cash App Payouts API
The payouts API from Cash App — 2 operation(s) for payouts.
Cash App Refunds API
The refunds API from Cash App — 5 operation(s) for refunds.
Cash App Request Chains API
The requestChains API from Cash App — 1 operation(s) for requestchains.
Cash App Requests API
The requests API from Cash App — 2 operation(s) for requests.
Cash App Webhooks API
The Webhooks API from Cash App — 3 operation(s) for webhooks.
Cash App Billing Agreements API
The Billing Agreements API from Cash App — 8 operation(s) for billing agreements.
Cash App Checkouts API
The Checkouts API from Cash App — 2 operation(s) for checkouts.
Cash App Configuration API
The Configuration API from Cash App — 2 operation(s) for configuration.
Cash App Grants API
The Grants API from Cash App — 8 operation(s) for grants.
Cash App Orders API
The Orders API from Cash App — 1 operation(s) for orders.
Cash App Ping API
The Ping API from Cash App — 1 operation(s) for ping.
Cash App Recurring Payments API
The Recurring Payments API from Cash App — 2 operation(s) for recurring payments.
Cash App API Keys API
The API Keys API from Cash App — 2 operation(s) for api keys.
Cash App Fee Plans API
The Fee Plans API from Cash App — 2 operation(s) for fee plans.
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Postman Collections 12
Ready-to-run Postman collections for exercising this provider's APIs.
Checkouts
POSTMANConfiguration
POSTMANCustomer Request API
POSTMANDisputes
POSTMANGrants - Afterpay
POSTMANManagement API
POSTMANNetwork API
POSTMANOrders
POSTMANPayments
POSTMANService Status
POSTMANScroll for all 12
Open Collections 12
Open, tool-agnostic API collections (OpenAPI-derived and Bruno).
Billing Agreements (Deprecated)
OPEN COLLECTIONCheckouts
OPEN COLLECTIONConfiguration
OPEN COLLECTIONCustomer Request API
OPEN COLLECTIONDisputes
OPEN COLLECTIONGrants - Afterpay
OPEN COLLECTIONAdd Cash App Pay to Your Site
OPEN COLLECTIONManagement API
OPEN COLLECTIONNetwork API
OPEN COLLECTIONOrders
OPEN COLLECTIONPayments
OPEN COLLECTIONService Status
OPEN COLLECTIONScroll for all 12
MCP Servers 1
Model Context Protocol servers that expose these APIs to AI agents.
Pricing Plans 1
Published pricing tiers and plan structures.
Rate Limits 1
Documented rate limits and quota policies.
Cash App Rate Limits
RATE LIMITSEvent Specifications 1
AsyncAPI definitions for this provider's event-driven and streaming APIs.
Cash App Webhooks
ASYNCAPISemantic Vocabularies 1
JSON-LD contexts and semantic vocabularies used across these APIs.
Cash App Context
JSON-LDSpectral Rules 1
Spectral governance rulesets for linting and validating these APIs.
Cash App API Rules
SPECTRALOpenAPI Overlays 12
Overlays applied on top of this provider's contracts. Each card says who wrote it: a document the provider publishes, or one API Evangelist derived or generated.
Cash App Checkouts Overlay
UNRECORDEDCash App Configuration Overlay
UNRECORDEDCash App Customer Request Api Overlay
UNRECORDEDCash App Disputes Overlay
UNRECORDEDCash App Grants Afterpay Overlay
UNRECORDEDCash App Grants Pay Overlay
UNRECORDEDCash App Management Api Overlay
UNRECORDEDCash App Network Api Overlay
UNRECORDEDCash App Orders Overlay
UNRECORDEDCash App Payments Overlay
UNRECORDEDCash App Service Status Overlay
UNRECORDEDScroll for all 12
JSON Schema 80
Standalone JSON Schema definitions for this provider's data models.
apiKeys_create-api-key_Response_201
JSON SCHEMAapiKeys_delete-api-key_Response_200
JSON SCHEMAapiKeys_list-api-keys_Response_200
JSON SCHEMAapiKeys_retrieve-api-key_Response_200
JSON SCHEMAAuthorizePayment
JSON SCHEMABalances_list-balances_Response_200
JSON SCHEMABalances_retrieve-balance_Response_200
JSON SCHEMABillingAgreementApprovalRequest
JSON SCHEMABillingAgreementApprovalResponse
JSON SCHEMABillingAgreementResponse
JSON SCHEMABrands_list-brands_Response_200
JSON SCHEMABrands_retrieve-brand_Response_200
JSON SCHEMACheckout-Request
JSON SCHEMAConfigurationMappings
JSON SCHEMAContact
JSON SCHEMACreateAgreementRequest
JSON SCHEMACreateGrantRequest
JSON SCHEMACreateOrderResponse
JSON SCHEMACustomers_list-customer-grants_Response_200
JSON SCHEMACustomers_list-customers_Response_200
JSON SCHEMACustomers_retrieve-customer_Response_200
JSON SCHEMACustomers_revoke-customer-grant_Response_200
JSON SCHEMAdispute
JSON SCHEMADisputes_list-dispute-evidence_Response_200
JSON SCHEMADisputes_list-disputes_Response_200
JSON SCHEMAevidence
JSON SCHEMAFee Plans_list-fee-plans_Response_200
JSON SCHEMAFee Plans_retrieve-fee-plan_Response_200
JSON SCHEMAget-checkout_Response_200
JSON SCHEMAGrantAliasRequest
JSON SCHEMAGrantApprovalRequest
JSON SCHEMAGrantApprovalResponse
JSON SCHEMAGrantStartResponse
JSON SCHEMAIdempotencyKey
JSON SCHEMAItem
JSON SCHEMALinkStartResponse
JSON SCHEMAMerchant-limit
JSON SCHEMAMerchants_list-merchants_Response_200
JSON SCHEMAMerchants_retrieve-merchant_Response_200
JSON SCHEMAOffersResponse
JSON SCHEMAOrderRequest
JSON SCHEMAPaymentAuth
JSON SCHEMAPayment
JSON SCHEMAPayouts_create-payout_Response_201
JSON SCHEMAPayouts_list-payouts_Response_200
JSON SCHEMAPayouts_retrieve-payout_Response_200
JSON SCHEMARecurringPaymentRequest
JSON SCHEMARefund
JSON SCHEMARefunds_capture-refund_Response_200
JSON SCHEMARefunds_list-refunds_Response_200
JSON SCHEMARefunds_retrieve-refund_Response_200
JSON SCHEMARequests_create-request_Response_201
JSON SCHEMARequests_retrieve-request_Response_200
JSON SCHEMARequests_update-request_Response_200
JSON SCHEMARetrieveGrantRequest
JSON SCHEMAupdate-payment-by-order-id_Response_201
JSON SCHEMAWebhookEndpointsWebhookEndpointIdPatchRequestBodyContentApplicationJsonSchemaWebhookEndpoint
JSON SCHEMAwebhooks_list-webhook-endpoints_Response_200
JSON SCHEMAwebhooks_list-webhook-events_Response_200
JSON SCHEMAScroll for all 80
Security Posture 3
Authentication, domain security, vulnerability disclosure, and trust-center signals.
Scopes 1
OAuth scopes governing access to this provider's APIs.
Agentic Access 1
Recommended x-agentic-access execution contracts for AI agents.
Resources
Get Started 5
Portal, sign-up, and the first successful call
Documentation 2
Reference material describing how the API behaves
Agent Surfaces 6
MCP servers, agent skills, and machine-readable catalogs
Design & Contract 11
Pagination, idempotency, versioning, errors, and events
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Build 8
SDKs, sample code, and the tooling you integrate with
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Access & Security 7
Authentication, authorization, and security posture
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Operate 4
Status, limits, changes, and where to get help
Commercial 2
Pricing, plans, and the legal terms of use
Company 3
The organization behind the API
Other 7
Properties that don't map to a standard resource type
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Source (apis.yml)
Work with this as data
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