Rainforest

Rainforest is a payfac-as-a-service (payment-facilitator-as-a-service) provider that lets vertical SaaS platforms embed payments and monetize them as revenue. Platforms integrate via embeddable, PCI-scope-reducing Components (loaded from a JavaScript bundle and configured in Component Studio) or a direct server-to-server REST API, and Rainforest handles merchant onboarding (KYC/KYB), card and ACH processing, payouts/deposits, chargebacks, disputes, and PCI compliance. The API is organized into Authentication/API keys, Merchants and merchant applications, Payments (payins, payment methods, refunds, chargebacks, ACH returns, devices), Deposits, File Uploads, Forward Requests, and Health, versioned by date (current 2024-10-16) and secured with HTTP Bearer API keys plus short-lived Component session tokens. Rainforest is PCI DSS Level 1 certified and hosted on AWS. Backed by Accel, Matrix Partners, and Y Combinator.

Rainforest publishes 23 API contracts indexed on the APIs.io network, including ACH Returns API, API Keys API, Billing Profiles API, and 20 more. Tagged areas include Company, Payments, Embedded Payments, Payment Facilitator, and Payment Processing.

The Rainforest catalog on APIs.io includes 1 event-driven AsyncAPI specification and 1 Spectral governance ruleset.

Rainforest’s developer surface includes documentation, API reference, getting-started guide, engineering blog, pricing, signup flow, changelog, and 34 more developer resources.

🌐 Visit website 📡 Profile data on GitHub

67.4/100 exemplar ▬ flat Agent 43/100 agent native Front door AI 1/6 silent Heartbeat 90/100 alive saas Full breakdown ↓
scored 2026-11-06 · rubric v0.27.0 · Show this score on your site →

AccessPaid

7 published contracts 4 Agent Skills

Company Payments Embedded PaymentsPayment FacilitatorPayment Processing Vertical SaaS Fintech ACH

What this lets a business do 1

Business capabilities this provider's published APIs can perform, derived from its own contracts. Browse all capabilities →

Subscription Billing & Revenue Management

BC-4250

PayinsPayment Methods

POST /v1/payins POST /v1/payins/{payin_id}/capture POST /v1/payins/{payin_id}/void_or_refund POST /v1/payment_methods

Kin Score

Kin Score How this is scored →
scored 2026-11-06 · rubric v0.27.0

Composite quality — 67.4/100 · exemplar

Contract Quality 11.7 / 19

Developer Ergonomics 9.0 / 15

Access Clarity 13.0 / 15

Operational Transparency 4.9 / 10

Contract Governance 2.9 / 9

Discoverability 5.9 / 8

Regulatory Posture 5.1 / 15

Create-or-Update Ergonomics 2.8 / 10

Agent readiness — 43/100 · agent native

Machine-Readable Contract 18 / 18

Agentic Access Contract 10 / 10

Documented Reversibility 6 / 6

MCP Server 0 / 12

Machine-Readable Auth 10 / 10

Idempotency 9 / 9

Stable Error Semantics 8 / 8

Request/Response Examples 7 / 7

Rate-Limit Signaling 0 / 7

Typed Event Surface 6 / 6

Agent Skills 5 / 5

Well-Known Catalog 0 / 4

Consent & Bot Identity 0 / 3

A2A Agent Card 0 / 8

Dry-Run / Simulate Mode 0 / 4

Delegated User Identity 0 / 6

Protected Resource Metadata 0 / 5

Registration Without a Human 0 / 6

Agentic Commerce Well-Known Document 0 / 5

Pagination 5 / 5

Distinct Operations 3 / 3

MCP Tool Quality 6 / 6

Regulatory Posture applies to this provider. Its tags matched the Payments regime, so Regulatory Posture carries 15 points of the composite. If this regime is wrong for your business, say so on your provider repo — the applicability map is public and we will correct it.

Create-or-Update Ergonomics applies to this provider. This API accepts writes, so it carries 10 points of the composite. It is scored from the published contracts themselves: whether a caller can create-or-update in one call, whether the write accepts a key the caller already holds, and whether the response says which branch ran. Without that, every write needs a search-and-branch in front of it, and the first time that check is skipped a duplicate record is created. Scored against the observed mean rather than raw — a provider at the catalog average is unchanged by this facet, not penalised by it.

The six quality facets above are damped to 75 points between them, because the conditional facet above carries the other 25. That is why each facet's contribution is shown against a damped maximum: raising a quality facet moves the composite by 75% of its nominal weight, not 100%. The full arithmetic is at apis.io/rating/.

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Agent readiness — checks not met, largest first (exact, from this profile):

MCP Server +12 pts — deployment.mode + probe verdict on the mcp/ manifest, not the pointer; an unprobed slug falls back to authorship
A2A Agent Card +8 pts — a2a/-a2a.yml manifest, graded on conformance.grade against A2A 1.0.0
Rate-Limit Signaling +7 pts — OpenAPI responses document X-RateLimit-* / RateLimit headers (verified), else a rate_limits artifact or RateLimits link (documented)
Registration Without a Human +6 pts — a `registration_endpoint` in the served RFC 8414 / OIDC discovery document
Delegated User Identity +6 pts — a served discovery document listing authorization_code in grant_types_supported (served), else an oauth2 authorizationCode flow or openIdConnect declared in an OpenAPI (documented)
Protected Resource Metadata +5 pts — a served /.well-known/oauth-protected-resource carrying `resource` (documented), and naming its authorization_servers (verified)

4 more unmet checks in the Agent Readiness table above.

Kin Score — facets with the most composite points still available (weight × headroom):

Contract Quality scores 62.3 — up to +9.4 composite points
Contract Governance scores 31.8 — up to +8.2 composite points
Developer Ergonomics scores 60.1 — up to +8.0 composite points

Each check links to what satisfies it. Publish the artifact, or tell us where it already lives, and the score moves on the next scoring run.

Improve this rating by publishing the missing artifacts — every area above can be raised, and the full rubric is at apis.io/rating/. Every facet and dimension name above is a link: it opens that measurement's own page — what it means, the exact checks that feed it, how the whole catalog distributes on it, and the providers at the top of it. This rating is computed from the provider profile at artifacts.apis.io/rainforest/apis.yml: open an issue on github.com/api-evangelist/rainforest to ask a question or point us at an artifact you publish. Submit an artifact on GitHub — free → Manage your own listing — the Influence plan, $499/mo →

Standards implemented 2

Standards this provider implements or carries. De facto ones are profiled and measured by the API Commons; formal ones come from the standards directory and are linked by the provider's own tags. The evidence column says how each claim was established — not that it was made.

NACHA

tagged — the provider's own APIs.json carries the standard as a tag; implementation not verified

OpenAPI

measured — observed by APIs.io (published)

APIs 23

Individual APIs this provider publishes, each with its own machine-readable definition.

Rainforest ACH Returns API

Resources for ACH return functions.

Rainforest API Keys API

Resources for api key functions.

Rainforest Billing Profiles API

Resources for billing profile functions.

Rainforest BIN Lookups API

Resources for BIN lookup functions.

Rainforest Chargebacks API

Resources for chargeback functions.

Rainforest Deposit Method Configs API

Resources for deposit method config functions.

Rainforest Deposit Methods API

Resources for deposit method functions.

Rainforest Deposits API

Resources for deposit functions.

Rainforest Devices API

Resources for device functions.

Rainforest File Upload Configs API

Resources for file upload config functions.

Rainforest File Uploads API

Resources for file upload functions.

Rainforest Forward Requests API

Resources for forwarding sensitive data to 3rd parties.

Rainforest Health API

Resources for health functions.

Rainforest Merchant Applications API

Resources for merchant application functions.

Rainforest Merchants API

Resources for merchant functions.

Rainforest Payin Configs API

Resources for payin configs functions.

Rainforest Payins API

Resources for payin functions.

Rainforest Payment Method Configs API

Resources for payment method configs functions.

Rainforest Payment Method Domains API

Resources for payment method domain functions.

Rainforest Payment Methods API

Resources for payment method functions.

Rainforest Payments API

Resources for payment functions.

Rainforest Refunds API

Resources for refund functions.

Rainforest Sessions API

Resources for session functions.

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Postman Collections 23

Ready-to-run Postman collections for exercising this provider's APIs.

Authentication ACH Returns API

POSTMAN

Authentication ACH Returns API Keys API

POSTMAN

Authentication ACH Returns Billing Profiles API

POSTMAN

Authentication ACH Returns BIN Lookups API

POSTMAN

Authentication ACH Returns Chargebacks API

POSTMAN

Authentication ACH Returns Deposit Method Configs API

POSTMAN

Authentication ACH Returns Deposit Methods API

POSTMAN

Authentication ACH Returns Deposits API

POSTMAN

Authentication ACH Returns Devices API

POSTMAN

Authentication ACH Returns File Upload Configs API

POSTMAN

Authentication ACH Returns File Uploads API

POSTMAN

Authentication ACH Returns Forward Requests API

POSTMAN

Authentication ACH Returns Health API

POSTMAN

Authentication ACH Returns Merchant Applications API

POSTMAN

Authentication ACH Returns Merchants API

POSTMAN

Authentication ACH Returns Payin Configs API

POSTMAN

Authentication ACH Returns Payins API

POSTMAN

Authentication ACH Returns Payment Method Configs API

POSTMAN

Authentication ACH Returns Payment Method Domains API

POSTMAN

Authentication ACH Returns Payment Methods API

POSTMAN

Authentication ACH Returns Payments API

POSTMAN

Authentication ACH Returns Refunds API

POSTMAN

Authentication ACH Returns Sessions API

POSTMAN

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Open Collections 23

Open, tool-agnostic API collections (OpenAPI-derived and Bruno).

Authentication ACH Returns API

OPEN COLLECTION

Authentication ACH Returns API Keys API

OPEN COLLECTION

Authentication ACH Returns Billing Profiles API

OPEN COLLECTION

Authentication ACH Returns BIN Lookups API

OPEN COLLECTION

Authentication ACH Returns Chargebacks API

OPEN COLLECTION

Authentication ACH Returns Deposit Method Configs API

OPEN COLLECTION

Authentication ACH Returns Deposit Methods API

OPEN COLLECTION

Authentication ACH Returns Deposits API

OPEN COLLECTION

Authentication ACH Returns Devices API

OPEN COLLECTION

Authentication ACH Returns File Upload Configs API

OPEN COLLECTION

Authentication ACH Returns File Uploads API

OPEN COLLECTION

Authentication ACH Returns Forward Requests API

OPEN COLLECTION

Authentication ACH Returns Health API

OPEN COLLECTION

Authentication ACH Returns Merchant Applications API

OPEN COLLECTION

Authentication ACH Returns Merchants API

OPEN COLLECTION

Authentication ACH Returns Payin Configs API

OPEN COLLECTION

Authentication ACH Returns Payins API

OPEN COLLECTION

Authentication ACH Returns Payment Method Configs API

OPEN COLLECTION

Authentication ACH Returns Payment Method Domains API

OPEN COLLECTION

Authentication ACH Returns Payment Methods API

OPEN COLLECTION

Authentication ACH Returns Payments API

OPEN COLLECTION

Authentication ACH Returns Refunds API

OPEN COLLECTION

Authentication ACH Returns Sessions API

OPEN COLLECTION

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Arazzo Workflows 2

Multi-step API workflows described with the Arazzo specification.

Rainforest — configure and process a payin

Create a payin config with an idempotency key, process the payin, and confirm its status.

ARAZZO

Rainforest — onboard a merchant

Create a merchant, submit its application, and confirm it reaches ACTIVE.

ARAZZO

Agent Skills 4

Packaged agent skills for driving this provider's APIs from an AI assistant.

Collect a payment (payin) with Rainforest

AGENT SKILL

Respond to a chargeback with Rainforest

AGENT SKILL

Onboard a merchant with Rainforest

AGENT SKILL

Void or refund a payin with Rainforest

AGENT SKILL

Rainforest API pricing

Prices published by Rainforest, read 2026-10-28 from www.rainforestpay.com/pricing.

Plan	Price
Card transaction fee — $0m-$5m monthly dollar volume	0.30%
Card transaction fee — $5m-$15m monthly dollar volume	0.25%
Card transaction fee — $15m-$25m monthly dollar volume	0.20%
Per item — 0-50k monthly transactions	$0.30
Per item — 50k-150k monthly transactions	$0.25
Per item — 150k-250k monthly transactions	$0.20
Standard Payout	$0.20/ item
ACH Transaction	$0.20/ item

All 14 plans, limits and sources →

Billed by: item · FinOps profile →

Pricing Plans 2

Published pricing tiers and plan structures.

Rainforest Plans Pricing

14 plans

PLANS

Rainforest Price Estimates

0 plans

PLANS

Service Levels 1

Uptime the provider promises or reports, as SLA4OAI. Read from its own pages; APIs.io runs no monitors.

Rainforest

SLA

FinOps 1

Cost, billing, and metering signals for API financial operations.

Rainforest Finops

FINOPS

Event Specifications 1

AsyncAPI definitions for this provider's event-driven and streaming APIs.

Rainforest Webhooks

ASYNCAPI

Spectral Rules 1

Spectral governance rulesets for linting and validating these APIs.

Rainforest API Rules

56 rules · 42 errors 13 warnings 1 info

SPECTRAL

OpenAPI Overlays 7

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.

Rainforest Authentication Overlay

1 action · update · rainforest-authentication-openapi.yaml

DERIVED

Rainforest Deposits Overlay

1 action · update · rainforest-deposits-openapi.yaml

DERIVED

Rainforest File_Uploads Overlay

1 action · update · rainforest-file_uploads-openapi.yaml

DERIVED

Rainforest Forward_Requests Overlay

1 action · update · rainforest-forward_requests-openapi.yaml

DERIVED

Rainforest Health Overlay

1 action · update · rainforest-health-openapi.yaml

DERIVED

Rainforest Merchants Overlay

1 action · update · rainforest-merchants-openapi.yaml

DERIVED

Rainforest Payments Overlay

1 action · update · rainforest-payments-openapi.yaml

DERIVED

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Security Posture 3

Authentication, domain security, vulnerability disclosure, and trust-center signals.

Rainforest Authentication

http · 1 scheme

SECURITY

Rainforest Domain Security

TLSv1.3 · HSTS · DMARC

SECURITY

Rainforest Trust Center

PCI DSS Level 1 Service Provider

SECURITY

Agentic Access 1

Recommended x-agentic-access execution contracts for AI agents.

Rainforest Agentic Access

82 operations · 53 acting · 1 human-in-the-loop

82 operations · 53 acting

AGENTIC

Resources

Get Started 4

Portal, sign-up, and the first successful call

DeveloperPortal

GettingStarted

SignUp

Sandbox

Documentation 2

Reference material describing how the API behaves

Documentation

Documentation

APIReference

APIReference

Agent Surfaces 4

MCP servers, agent skills, and machine-readable catalogs

AgenticAccess

AgenticAccess

X-MCPServerCandidate

X-MCPServerCandidate

LLMsTxt

LLMsTxt

AgentSkill

AgentSkill

Design & Contract 10

Pagination, idempotency, versioning, errors, and events

Conformance

ErrorCatalog

Lifecycle

Conventions

Idempotency

Components

DataModel

Webhooks

Arazzo

Arazzo

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Build 5

SDKs, sample code, and the tooling you integrate with

PostmanWorkspace

PostmanWorkspace

GitHubOrganization

Packages

SDKs

DeclineCodes

Access & Security 4

Authentication, authorization, and security posture

Authentication

DomainSecurity

TrustCenter

Compliance

Operate 3

Status, limits, changes, and where to get help

StatusPage

StatusPage

ChangeLog

ChangeLog

Deprecation

Deprecation

Commercial 4

Pricing, plans, and the legal terms of use

Plans

Pricing

TermsOfService

PrivacyPolicy

Company 2

The organization behind the API

Website

Website

Blog

Blog

Other 3

Properties that don't map to a standard resource type

CapabilityMap

CapabilityMap

Glossary

Glossary

Overlay

Overlay

Source (apis.yml)

aid: rainforest
name: Rainforest
description: Rainforest is a payfac-as-a-service (payment-facilitator-as-a-service) provider that lets vertical SaaS platforms
  embed payments and monetize them as revenue. Platforms integrate via embeddable, PCI-scope-reducing Components (loaded from
  a JavaScript bundle and configured in Component Studio) or a direct server-to-server REST API, and Rainforest handles merchant
  onboarding (KYC/KYB), card and ACH processing, payouts/deposits, chargebacks, disputes, and PCI compliance. The API is organized
  into Authentication/API keys, Merchants and merchant applications, Payments (payins, payment methods, refunds, chargebacks,
  ACH returns, devices), Deposits, File Uploads, Forward Requests, and Health, versioned by date (current 2024-10-16) and
  secured with HTTP Bearer API keys plus short-lived Component session tokens. Rainforest is PCI DSS Level 1 certified and
  hosted on AWS. Backed by Accel, Matrix Partners, and Y Combinator.
url: https://raw.githubusercontent.com/api-evangelist/rainforest/refs/heads/main/apis.yml
deliveryModel:
  model: saas
  open_source: false
  commercial: true
  callable_host: true
  label: Hosted service · you call their endpoint
  confidence: high
  source:
  - openapi
  - pricing
  generated: '2026-08-28'
  method: derived
accessModel:
  pricing: paid
  onboarding: unknown
  trial: false
  try_now: false
  public: false
  label: Paid
  confidence: high
  source:
  - plans
  - authentication
  - security
  - sandbox
  generated: '2026-11-06'
  method: derived
image: https://cdn.prod.website-files.com/682cdc7097ff49cf0ef60212/6848e7d5a49cad06f0ce0ffa_favicon%202.png
x-type: company
x-source: vc-portfolio
x-backed-by:
- accel
- matrix-partners
- y-combinator
x-tier: stub
x-tier-reason: portfolio-lead
specificationVersion: '0.23'
created: '2026-07-17'
modified: '2026-07-20'
x-docs-platform: readme
x-docs-platform-confidence: high
x-docs-platform-checked: 2026-10-04
tags:
- Company
- Payments
- Embedded Payments
- Payment Facilitator
- Payment Processing
- Vertical SaaS
- Fintech
- ACH
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
apis:
- aid: rainforest:rainforest-ach-returns-api
  name: Rainforest ACH Returns API
  description: Resources for ACH return functions.
  humanURL: https://docs.rainforestpay.com/
  baseURL: https://api.rainforestpay.com
  tags:
  - ACH Returns
  properties:
  - type: OpenAPI
    url: openapi/rainforest-ach-returns-api-openapi.yml
  - type: APIReference
    url: https://docs.rainforestpay.com/reference
  - type: Documentation
    url: https://docs.rainforestpay.com/docs/overview
- aid: rainforest:rainforest-api-keys-api
  name: Rainforest API Keys API
  description: Resources for api key functions.
  humanURL: https://docs.rainforestpay.com/
  baseURL: https://api.rainforestpay.com
  tags:
  - APIKeys
  tags_raw:
  - API Keys
  properties:
  - type: OpenAPI
    url: openapi/rainforest-api-keys-api-openapi.yml
  - type: APIReference
    url: https://docs.rainforestpay.com/reference
  - type: Documentation
    url: https://docs.rainforestpay.com/docs/overview
- aid: rainforest:rainforest-billing-profiles-api
  name: Rainforest Billing Profiles API
  description: Resources for billing profile functions.
  humanURL: https://docs.rainforestpay.com/
  baseURL: https://api.rainforestpay.com
  tags:
  - Billing Profiles
  properties:
  - type: OpenAPI
    url: openapi/rainforest-billing-profiles-api-openapi.yml
  - type: APIReference
    url: https://docs.rainforestpay.com/reference
  - type: Documentation
    url: https://docs.rainforestpay.com/docs/overview
- aid: rainforest:rainforest-bin-lookups-api
  name: Rainforest BIN Lookups API
  description: Resources for BIN lookup functions.
  humanURL: https://docs.rainforestpay.com/
  baseURL: https://api.rainforestpay.com
  tags:
  - BIN Lookups
  properties:
  - type: OpenAPI
    url: openapi/rainforest-bin-lookups-api-openapi.yml
  - type: APIReference
    url: https://docs.rainforestpay.com/reference
  - type: Documentation
    url: https://docs.rainforestpay.com/docs/overview
- aid: rainforest:rainforest-chargebacks-api
  name: Rainforest Chargebacks API
  description: Resources for chargeback functions.
  humanURL: https://docs.rainforestpay.com/
  baseURL: https://api.rainforestpay.com
  tags:
  - Chargebacks
  properties:
  - type: OpenAPI
    url: openapi/rainforest-chargebacks-api-openapi.yml
  - type: APIReference
    url: https://docs.rainforestpay.com/reference
  - type: Documentation
    url: https://docs.rainforestpay.com/docs/overview
- aid: rainforest:rainforest-deposit-method-configs-api
  name: Rainforest Deposit Method Configs API
  description: Resources for deposit method config functions.
  humanURL: https://docs.rainforestpay.com/
  baseURL: https://api.rainforestpay.com
  tags:
  - Deposit Method Configs
  properties:
  - type: OpenAPI
    url: openapi/rainforest-deposit-method-configs-api-openapi.yml
  - type: APIReference
    url: https://docs.rainforestpay.com/reference
  - type: Documentation
    url: https://docs.rainforestpay.com/docs/overview
- aid: rainforest:rainforest-deposit-methods-api
  name: Rainforest Deposit Methods API
  description: Resources for deposit method functions.
  humanURL: https://docs.rainforestpay.com/
  baseURL: https://api.rainforestpay.com
  tags:
  - Deposit Methods
  properties:
  - type: OpenAPI
    url: openapi/rainforest-deposit-methods-api-openapi.yml
  - type: APIReference
    url: https://docs.rainforestpay.com/reference
  - type: Documentation
    url: https://docs.rainforestpay.com/docs/overview
- aid: rainforest:rainforest-deposits-api
  name: Rainforest Deposits API
  description: Resources for deposit functions.
  humanURL: https://docs.rainforestpay.com/
  baseURL: https://api.rainforestpay.com
  tags:
  - Deposits
  properties:
  - type: OpenAPI
    url: openapi/rainforest-deposits-api-openapi.yml
  - type: APIReference
    url: https://docs.rainforestpay.com/reference
  - type: Documentation
    url: https://docs.rainforestpay.com/docs/overview
- aid: rainforest:rainforest-devices-api
  name: Rainforest Devices API
  description: Resources for device functions.
  humanURL: https://docs.rainforestpay.com/
  baseURL: https://api.rainforestpay.com
  tags:
  - Devices
  properties:
  - type: OpenAPI
    url: openapi/rainforest-devices-api-openapi.yml
  - type: APIReference
    url: https://docs.rainforestpay.com/reference
  - type: Documentation
    url: https://docs.rainforestpay.com/docs/overview
- aid: rainforest:rainforest-file-upload-configs-api
  name: Rainforest File Upload Configs API
  description: Resources for file upload config functions.
  humanURL: https://docs.rainforestpay.com/
  baseURL: https://api.rainforestpay.com
  tags:
  - File Upload Configs
  properties:
  - type: OpenAPI
    url: openapi/rainforest-file-upload-configs-api-openapi.yml
  - type: APIReference
    url: https://docs.rainforestpay.com/reference
  - type: Documentation
    url: https://docs.rainforestpay.com/docs/overview
- aid: rainforest:rainforest-file-uploads-api
  name: Rainforest File Uploads API
  description: Resources for file upload functions.
  humanURL: https://docs.rainforestpay.com/
  baseURL: https://api.rainforestpay.com
  tags:
  - File Uploads
  properties:
  - type: OpenAPI
    url: openapi/rainforest-file-uploads-api-openapi.yml
  - type: APIReference
    url: https://docs.rainforestpay.com/reference
  - type: Documentation
    url: https://docs.rainforestpay.com/docs/overview
- aid: rainforest:rainforest-forward-requests-api
  name: Rainforest Forward Requests API
  description: Resources for forwarding sensitive data to 3rd parties.
  humanURL: https://docs.rainforestpay.com/
  baseURL: https://api.rainforestpay.com
  tags:
  - Forward Requests
  properties:
  - type: OpenAPI
    url: openapi/rainforest-forward-requests-api-openapi.yml
  - type: APIReference
    url: https://docs.rainforestpay.com/reference
  - type: Documentation
    url: https://docs.rainforestpay.com/docs/overview
- aid: rainforest:rainforest-health-api
  name: Rainforest Health API
  description: Resources for health functions.
  humanURL: https://docs.rainforestpay.com/
  baseURL: https://api.rainforestpay.com
  tags:
  - Health
  properties:
  - type: OpenAPI
    url: openapi/rainforest-health-api-openapi.yml
  - type: APIReference
    url: https://docs.rainforestpay.com/reference
  - type: Documentation
    url: https://docs.rainforestpay.com/docs/overview
- aid: rainforest:rainforest-merchant-applications-api
  name: Rainforest Merchant Applications API
  description: Resources for merchant application functions.
  humanURL: https://docs.rainforestpay.com/
  baseURL: https://api.rainforestpay.com
  tags:
  - Merchant Applications
  properties:
  - type: OpenAPI
    url: openapi/rainforest-merchant-applications-api-openapi.yml
  - type: APIReference
    url: https://docs.rainforestpay.com/reference
  - type: Documentation
    url: https://docs.rainforestpay.com/docs/overview
- aid: rainforest:rainforest-merchants-api
  name: Rainforest Merchants API
  description: Resources for merchant functions.
  humanURL: https://docs.rainforestpay.com/
  baseURL: https://api.rainforestpay.com
  tags:
  - Merchants
  properties:
  - type: OpenAPI
    url: openapi/rainforest-merchants-api-openapi.yml
  - type: APIReference
    url: https://docs.rainforestpay.com/reference
  - type: Documentation
    url: https://docs.rainforestpay.com/docs/overview
- aid: rainforest:rainforest-payin-configs-api
  name: Rainforest Payin Configs API
  description: Resources for payin configs functions.
  humanURL: https://docs.rainforestpay.com/
  baseURL: https://api.rainforestpay.com
  tags:
  - Payin Configs
  properties:
  - type: OpenAPI
    url: openapi/rainforest-payin-configs-api-openapi.yml
  - type: APIReference
    url: https://docs.rainforestpay.com/reference
  - type: Documentation
    url: https://docs.rainforestpay.com/docs/overview
- aid: rainforest:rainforest-payins-api
  name: Rainforest Payins API
  description: Resources for payin functions.
  humanURL: https://docs.rainforestpay.com/
  baseURL: https://api.rainforestpay.com
  tags:
  - Pay-In
  tags_raw:
  - Payins
  properties:
  - type: OpenAPI
    url: openapi/rainforest-payins-api-openapi.yml
  - type: APIReference
    url: https://docs.rainforestpay.com/reference
  - type: Documentation
    url: https://docs.rainforestpay.com/docs/overview
- aid: rainforest:rainforest-payment-method-configs-api
  name: Rainforest Payment Method Configs API
  description: Resources for payment method configs functions.
  humanURL: https://docs.rainforestpay.com/
  baseURL: https://api.rainforestpay.com
  tags:
  - Payment Method Configs
  properties:
  - type: OpenAPI
    url: openapi/rainforest-payment-method-configs-api-openapi.yml
  - type: APIReference
    url: https://docs.rainforestpay.com/reference
  - type: Documentation
    url: https://docs.rainforestpay.com/docs/overview
- aid: rainforest:rainforest-payment-method-domains-api
  name: Rainforest Payment Method Domains API
  description: Resources for payment method domain functions.
  humanURL: https://docs.rainforestpay.com/
  baseURL: https://api.rainforestpay.com
  tags:
  - Payment Method Domains
  properties:
  - type: OpenAPI
    url: openapi/rainforest-payment-method-domains-api-openapi.yml
  - type: APIReference
    url: https://docs.rainforestpay.com/reference
  - type: Documentation
    url: https://docs.rainforestpay.com/docs/overview
- aid: rainforest:rainforest-payment-methods-api
  name: Rainforest Payment Methods API
  description: Resources for payment method functions.
  humanURL: https://docs.rainforestpay.com/
  baseURL: https://api.rainforestpay.com
  tags:
  - Payment Methods
  properties:
  - type: OpenAPI
    url: openapi/rainforest-payment-methods-api-openapi.yml
  - type: APIReference
    url: https://docs.rainforestpay.com/reference
  - type: Documentation
    url: https://docs.rainforestpay.com/docs/overview
- aid: rainforest:rainforest-payments-api
  name: Rainforest Payments API
  description: Resources for payment functions.
  humanURL: https://docs.rainforestpay.com/
  baseURL: https://api.rainforestpay.com
  tags:
  - Payments
  properties:
  - type: OpenAPI
    url: openapi/rainforest-payments-api-openapi.yml
  - type: APIReference
    url: https://docs.rainforestpay.com/reference
  - type: Documentation
    url: https://docs.rainforestpay.com/docs/overview
- aid: rainforest:rainforest-refunds-api
  name: Rainforest Refunds API
  description: Resources for refund functions.
  humanURL: https://docs.rainforestpay.com/
  baseURL: https://api.rainforestpay.com
  tags:
  - Refunds
  properties:
  - type: OpenAPI
    url: openapi/rainforest-refunds-api-openapi.yml
  - type: APIReference
    url: https://docs.rainforestpay.com/reference
  - type: Documentation
    url: https://docs.rainforestpay.com/docs/overview
- aid: rainforest:rainforest-sessions-api
  name: Rainforest Sessions API
  description: Resources for session functions.
  humanURL: https://docs.rainforestpay.com/
  baseURL: https://api.rainforestpay.com
  tags:
  - Sessions
  properties:
  - type: OpenAPI
    url: openapi/rainforest-sessions-api-openapi.yml
  - type: APIReference
    url: https://docs.rainforestpay.com/reference
  - type: Documentation
    url: https://docs.rainforestpay.com/docs/overview
common:
- type: Plans
  url: plans/rainforest-plans-pricing.yml
- type: CapabilityMap
  url: capabilities/rainforest-capability-edges.yml
  name: Rainforest Business Capability Map
- type: PostmanWorkspace
  url: https://www.postman.com/kinlaneapi/rainforest/overview
- type: Website
  url: https://www.rainforestpay.com/
- type: DeveloperPortal
  url: https://docs.rainforestpay.com/
- type: Documentation
  url: https://docs.rainforestpay.com/docs/overview
- type: APIReference
  url: https://docs.rainforestpay.com/reference
- type: GettingStarted
  url: https://docs.rainforestpay.com/docs/getting-started
- type: Blog
  url: https://www.rainforestpay.com/blog
- type: GitHubOrganization
  url: https://github.com/rainforestpay
- type: Pricing
  url: https://www.rainforestpay.com/pricing
- type: SignUp
  url: https://platform.sandbox.rainforestpay.com
- type: TermsOfService
  url: https://www.rainforestpay.com/terms-of-service
- type: PrivacyPolicy
  url: https://www.rainforestpay.com/privacy-policy/
- type: StatusPage
  url: https://status.rainforestpay.com/
- type: ChangeLog
  url: changelog/rainforest-changelog.yml
- type: Glossary
  url: https://www.rainforestpay.com/glossary
- type: Authentication
  url: authentication/rainforest-authentication.yml
- type: AgenticAccess
  url: agentic-access/rainforest-agentic-access.yml
- type: DomainSecurity
  url: security/rainforest-domain-security.yml
- type: TrustCenter
  url: security/rainforest-trust-center.yml
- type: Compliance
  url: https://www.rainforestpay.com/data-security-compliance
- type: Conformance
  url: conformance/rainforest-conformance.yml
- type: Packages
  url: packages/rainforest-packages.yml
- type: SDKs
  url: packages/rainforest-packages.yml
- type: X-MCPServerCandidate
  url: mcp/rainforest-mcp.yml
  note: 'Renamed from MCPServer 2026-09-03 (roadmap#247): the manifest self-describes as status: candidate — a tool list derived
    from the published API contracts, not an existing server. The scorer already read the manifest and reported mcp_server
    correctly; the MCPServer type was crediting the artifact-type surfaces with a server that does not exist.'
- type: LLMsTxt
  url: llms/rainforest-llms.txt
- type: ErrorCatalog
  url: errors/rainforest-problem-types.yml
- type: DeclineCodes
  url: errors/rainforest-decline-codes.yml
- type: Lifecycle
  url: lifecycle/rainforest-lifecycle.yml
- type: Deprecation
  url: https://docs.rainforestpay.com/docs/api-version-upgrades
- type: Sandbox
  url: sandbox/rainforest-sandbox.yml
- type: Conventions
  url: conventions/rainforest-conventions.yml
- type: Idempotency
  url: conventions/rainforest-conventions.yml
- type: Components
  url: components/rainforest-components.yml
- type: DataModel
  url: data-model/rainforest-data-model.yml
- type: Webhooks
  url: asyncapi/rainforest-webhooks.yml
- type: Overlay
  url: overlays/rainforest-payments-overlay.yaml
- type: AgentSkill
  url: skills/_index.yml
- type: Arazzo
  name: Collect a payment (payin)
  url: arazzo/rainforest-collect-payment.yml
- type: Arazzo
  name: Onboard a merchant
  url: arazzo/rainforest-onboard-merchant.yml
x-enrichment:
  date: '2026-07-20'
  status: enriched
  artifacts_added: 41
  pass: local-v1

Rainforest API — frequently asked questions

Does Rainforest have an API?

Yes. APIs.io lists 23 APIs from Rainforest, including Rainforest ACH Returns API, Rainforest API Keys API and Rainforest Billing Profiles API, and 20 more.

Is there an OpenAPI specification for the Rainforest API?

Yes. APIs.io indexes 23 OpenAPI specifications for Rainforest, each linked for download from this page.

How do I authenticate with the Rainforest API?

Rainforest uses bearer-token authentication (http · 1 scheme). The details are profiled on APIs.io as Rainforest Authentication.

How much does the Rainforest API cost?

Rainforest publishes its prices; its Card transaction fee — $0m-$5m monthly dollar volume plan is 0.30% as of 2026-10-28. APIs.io lists 14 pricing plans for Rainforest, with each plan's price, limits and inclusions under Pricing on this page.

Is the Rainforest API ready for AI agents?

Rainforest has a Kin Score of 67.4 out of 100 (exemplar) and an Agent Readiness score of 42.7 (agent-native), scored by API Evangelist on 2026-11-06.

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