Slash

Slash provides a modern business banking platform offering corporate cards, treasury services, stablecoin payments, and global payments API. Founded to simplify financial operations for enterprises, Slash supports multi‑entity accounting, expense management, and working capital solutions. Backed by a $100M Series C round, the company serves e‑commerce, agencies, healthcare, and Web3 sectors, handling over $30 bn yearly payment volume. The platform emphasizes low fees, transparent pricing, and developer-friendly APIs for payments, invoicing, and analytics.

Slash publishes 32 API contracts indexed on the APIs.io network, including Account API, Agent Requests API, Analytics API, and 29 more. Tagged areas include FinTech, Payments, Banking, API, and Enterprise.

The Slash catalog on APIs.io includes 1 event-driven AsyncAPI specification, 1 JSON-LD context, and 1 Spectral governance ruleset.

Slash’s developer surface includes changelog, authentication, documentation, API reference, getting-started guide, support, engineering blog, and 25 more developer resources.

🌐 Visit website 📡 Profile data on GitHub

52.0/100 developing Agent 46/100 agent native Full breakdown ↓
scored 2026-10-31 · rubric v0.25.0 · Show this score on your site →

1 published contract

FinTechPayments BankingAPIEnterprise

Kin Score

Kin Score How this is scored →
scored 2026-10-31 · rubric v0.25.0

Composite quality — 52.0/100 · developing

Contract Quality 13.6 / 21

Developer Ergonomics 8.1 / 17

Access Clarity 8.9 / 17

Operational Transparency 3.8 / 11

Contract Governance 3.6 / 10

Discoverability 5.6 / 9

Regulatory Posture 3.7 / 15

Agent readiness — 46/100 · agent native

Machine-Readable Contract 18 / 18

Agentic Access Contract 10 / 10

Documented Reversibility 0 / 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 0 / 5

Well-Known Catalog 0 / 4

Consent & Bot Identity 0 / 3

A2A Agent Card 8 / 8

Dry-Run / Simulate Mode 0 / 4

Delegated User Identity 6 / 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

Regulatory Posture applies to this provider. Its tags matched the Banking & Open Finance 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 could not be measured. We hold no machine-readable contract for this provider to read, so there is nothing to measure a write surface against. Excluded rather than scored zero: never-measured and measured-empty are different facts. Publishing an OpenAPI is what makes this facet — and several others — scorable at all.

The six quality facets above are damped to 85 points between them, because the conditional facet above carries the other 15. That is why each facet's contribution is shown against a damped maximum: raising a quality facet moves the composite by 85% 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
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
Documented Reversibility +6 pts — a reversal operation in the contract, graded up when a window is documented too
Agentic Commerce Well-Known Document +5 pts — a parsing /.well-known/ucp.json or acp.json declaring a version and at least one service — `self` when its endpoints are on the provider's own domain, `platform` when they are on a vendor's
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):

Developer Ergonomics scores 47.6 — up to +10.5 composite points
Access Clarity scores 52.6 — up to +9.5 composite points
Contract Quality scores 64.0 — up to +9.0 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/joinslash-com/apis.yml: open an issue on github.com/api-evangelist/joinslash-com 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 →

APIs 32

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

Slash Account API

The Account API from Slash — 4 operation(s) for account.

Slash Agent Requests API

The Agent Requests API from Slash — 2 operation(s) for agent requests.

Slash Analytics API

The Analytics API from Slash — 1 operation(s) for analytics.

Slash Card API

The Card API from Slash — 5 operation(s) for card.

Slash Card Group API

The Card Group API from Slash — 4 operation(s) for card group.

Slash Card Product API

The Card Product API from Slash — 1 operation(s) for card product.

Slash Cardholder API

The Cardholder API from Slash — 1 operation(s) for cardholder.

Slash Checkout Session API

The Checkout Session API from Slash — 2 operation(s) for checkout session.

Slash Contact API

The Contact API from Slash — 3 operation(s) for contact.

Slash Crypto API

The Crypto API from Slash — 1 operation(s) for crypto.

Slash Customer API

The Customer API from Slash — 3 operation(s) for customer.

Slash Developer Account API

The Developer Account API from Slash — 1 operation(s) for developer account.

Slash Developer Application API

The Developer Application API from Slash — 2 operation(s) for developer application.

Slash Expense Report API

The Expense Report API from Slash — 7 operation(s) for expense report.

Slash Fdx API

The Fdx API from Slash — 8 operation(s) for fdx.

Slash Invoice API

The Invoice API from Slash — 14 operation(s) for invoice.

Slash Legal Entity API

The Legal Entity API from Slash — 1 operation(s) for legal entity.

Slash Merchant API

The Merchant API from Slash — 2 operation(s) for merchant.

Slash Merchant Category API

The Merchant Category API from Slash — 1 operation(s) for merchant category.

Slash Oauth2 API

The Oauth2 API from Slash — 2 operation(s) for oauth2.

Slash Payment Intent API

The Payment Intent API from Slash — 2 operation(s) for payment intent.

Slash Payments API

The Payments API from Slash — 4 operation(s) for payments.

Slash Refund API

The Refund API from Slash — 2 operation(s) for refund.

Slash Slash Public API

The Slash Public API API from Slash — 0 operation(s) for slash public api.

Slash Task API

The Task API from Slash — 4 operation(s) for task.

Slash Tokens API

The Tokens API from Slash — 1 operation(s) for tokens.

Slash Transaction API

The Transaction API from Slash — 5 operation(s) for transaction.

Slash Transfer API

The Transfer API from Slash — 1 operation(s) for transfer.

Slash Transfers API

The Transfers API from Slash — 1 operation(s) for transfers.

Slash Virtual Account API

The Virtual Account API from Slash — 2 operation(s) for virtual account.

Slash Webhook API

The Webhook API from Slash — 2 operation(s) for webhook.

Slash .well Known API

The .well Known API from Slash — 2 operation(s) for .well known.

Scroll for all 32

Pricing Plans 1

Published pricing tiers and plan structures.

Joinslash Com Plans Pricing

2 plans

PLANS

Event Specifications 1

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

Joinslash Com Webhooks

ASYNCAPI

Semantic Vocabularies 1

JSON-LD contexts and semantic vocabularies used across these APIs.

Joinslash Com Context

120 classes · 315 properties

JSON-LD

Spectral Rules 1

Spectral governance rulesets for linting and validating these APIs.

Slash API Rules

14 rules · 9 errors 4 warnings 1 info

SPECTRAL

Security Posture 3

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

Joinslash Com Authentication

1 scheme

SECURITY

Joinslash Com Domain Security

TLSv1.3 · HSTS · DMARC

SECURITY

Joinslash Com Vulnerability Disclosure

security.txt · contact published

SECURITY

Agentic Access 1

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

Joinslash Com Agentic Access

124 operations · 53 acting

AGENTIC

Resources

Get Started 1

Portal, sign-up, and the first successful call

GettingStarted

GettingStarted

Documentation 2

Reference material describing how the API behaves

Documentation

Documentation

APIReference

APIReference

Agent Surfaces 3

MCP servers, agent skills, and machine-readable catalogs

AgenticAccess

AgenticAccess

LLMsTxt

LLMsTxt

WellKnown

WellKnown

Design & Contract 9

Pagination, idempotency, versioning, errors, and events

Spectral

JSONLD

Vocabulary

Webhooks

DataModel

Idempotency

Conventions

ErrorCatalog

Conformance

Scroll for all 9

Build 1

SDKs, sample code, and the tooling you integrate with

DeclineCodes

DeclineCodes

Access & Security 5

Authentication, authorization, and security posture

Authentication

Authentication

SecurityTxt

SecurityTxt

Security

Security

VulnerabilityDisclosure

VulnerabilityDisclosure

DomainSecurity

DomainSecurity

Operate 2

Status, limits, changes, and where to get help

ChangeLog

ChangeLog

Support

Support

Commercial 4

Pricing, plans, and the legal terms of use

Plans

TermsOfService

PrivacyPolicy

Pricing

Company 2

The organization behind the API

Website

Website

Blog

Blog

Other 3

Properties that don't map to a standard resource type

AgentCard

AgentCard

Hosts

Hosts

Vendors

Vendors

Source (apis.yml)

aid: joinslash-com
name: Slash
image: https://www.slash.com/images/social-previews/index.jpg
description: Slash provides a modern business banking platform offering corporate cards, treasury services, stablecoin payments,
  and global payments API. Founded to simplify financial operations for enterprises, Slash supports multi‑entity accounting,
  expense management, and working capital solutions. Backed by a $100M Series C round, the company serves e‑commerce, agencies,
  healthcare, and Web3 sectors, handling over $30 bn yearly payment volume. The platform emphasizes low fees, transparent
  pricing, and developer-friendly APIs for payments, invoicing, and analytics.
url: https://raw.githubusercontent.com/api-evangelist/joinslash-com/refs/heads/main/apis.yml
x-type: company
x-source: harvest:vc-portfolio
x-tier: profiled
x-tier-reason: enrichment pass 2026-10-26 (modular-v1; was harvest)
specificationVersion: '0.20'
created: '2026-10-25'
modified: '2026-10-25'
tags:
- FinTech
- Payments
- Banking
- API
- Enterprise
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
common:
- type: AgenticAccess
  url: agentic-access/joinslash-com-agentic-access.yml
- type: Plans
  url: plans/joinslash-com-plans-pricing.yml
- type: Spectral
  url: rules/joinslash-com-rules.yml
- type: JSONLD
  url: json-ld/joinslash-com-context.jsonld
- type: Vocabulary
  url: vocabulary/joinslash-com-vocabulary.yml
- type: Webhooks
  url: asyncapi/joinslash-com-webhooks.yml
- type: DataModel
  url: data-model/joinslash-com-data-model.yml
- type: ChangeLog
  url: changelog/joinslash-com-changelog.yml
- type: Idempotency
  url: conventions/joinslash-com-conventions.yml
- type: Conventions
  url: conventions/joinslash-com-conventions.yml
- type: Authentication
  url: authentication/joinslash-com-authentication.yml
- type: DeclineCodes
  url: errors/joinslash-com-decline-codes.yml
- type: ErrorCatalog
  url: errors/joinslash-com-problem-types.yml
- type: Conformance
  url: conformance/joinslash-com-conformance.yml
- type: LLMsTxt
  url: llms/joinslash-com-llms.txt
- type: AgentCard
  url: a2a/joinslash-com-a2a.yml
- type: SecurityTxt
  url: well-known/joinslash-com-security.txt
- type: WellKnown
  url: well-known/joinslash-com-well-known.yml
- type: Hosts
  url: hosts/joinslash-com-hosts.yml
- type: Vendors
  url: vendors/joinslash-com-vendors.yml
- type: TermsOfService
  url: https://www.slash.com/legal/terms-of-service
- type: Security
  url: https://www.slash.com/company/security
- type: PrivacyPolicy
  url: https://www.slash.com/legal/privacy-policy
- type: VulnerabilityDisclosure
  url: security/joinslash-com-vulnerability-disclosure.yml
- type: DomainSecurity
  url: security/joinslash-com-domain-security.yml
- type: Website
  url: https://www.slash.com
- type: Documentation
  url: https://www.slash.com/platform/api
- type: APIReference
  url: https://www.slash.com/platform/api
- type: GettingStarted
  url: https://www.slash.com/platform/api
- type: Support
  url: https://www.slash.com/help-center
- type: Blog
  url: https://www.slash.com/blog
- type: Pricing
  url: https://www.slash.com/pricing
apis:
- aid: joinslash-com:joinslash-com-account-api
  name: Slash Account API
  description: The Account API from Slash — 4 operation(s) for account.
  humanURL: https://www.slash.com/platform/api
  baseURL: https://api.slash.com
  tags:
  - Account
  properties:
  - type: OpenAPI
    url: openapi/joinslash-com-account-api-openapi.yml
- aid: joinslash-com:joinslash-com-agent-requests-api
  name: Slash Agent Requests API
  description: The Agent Requests API from Slash — 2 operation(s) for agent requests.
  humanURL: https://www.slash.com/platform/api
  baseURL: https://api.slash.com
  tags:
  - Agent Requests
  properties:
  - type: OpenAPI
    url: openapi/joinslash-com-agent-requests-api-openapi.yml
- aid: joinslash-com:joinslash-com-analytics-api
  name: Slash Analytics API
  description: The Analytics API from Slash — 1 operation(s) for analytics.
  humanURL: https://www.slash.com/platform/api
  baseURL: https://api.slash.com
  tags:
  - Analytics
  properties:
  - type: OpenAPI
    url: openapi/joinslash-com-analytics-api-openapi.yml
- aid: joinslash-com:joinslash-com-card-api
  name: Slash Card API
  description: The Card API from Slash — 5 operation(s) for card.
  humanURL: https://www.slash.com/platform/api
  baseURL: https://api.slash.com
  tags:
  - Card
  properties:
  - type: OpenAPI
    url: openapi/joinslash-com-card-api-openapi.yml
- aid: joinslash-com:joinslash-com-card-group-api
  name: Slash Card Group API
  description: The Card Group API from Slash — 4 operation(s) for card group.
  humanURL: https://www.slash.com/platform/api
  baseURL: https://api.slash.com
  tags:
  - Card Group
  properties:
  - type: OpenAPI
    url: openapi/joinslash-com-card-group-api-openapi.yml
- aid: joinslash-com:joinslash-com-card-product-api
  name: Slash Card Product API
  description: The Card Product API from Slash — 1 operation(s) for card product.
  humanURL: https://www.slash.com/platform/api
  baseURL: https://api.slash.com
  tags:
  - Card Product
  properties:
  - type: OpenAPI
    url: openapi/joinslash-com-card-product-api-openapi.yml
- aid: joinslash-com:joinslash-com-cardholder-api
  name: Slash Cardholder API
  description: The Cardholder API from Slash — 1 operation(s) for cardholder.
  humanURL: https://www.slash.com/platform/api
  baseURL: https://api.slash.com
  tags:
  - Cardholder
  properties:
  - type: OpenAPI
    url: openapi/joinslash-com-cardholder-api-openapi.yml
- aid: joinslash-com:joinslash-com-checkout-session-api
  name: Slash Checkout Session API
  description: The Checkout Session API from Slash — 2 operation(s) for checkout session.
  humanURL: https://www.slash.com/platform/api
  baseURL: https://api.slash.com
  tags:
  - Checkout Session
  properties:
  - type: OpenAPI
    url: openapi/joinslash-com-checkout-session-api-openapi.yml
- aid: joinslash-com:joinslash-com-contact-api
  name: Slash Contact API
  description: The Contact API from Slash — 3 operation(s) for contact.
  humanURL: https://www.slash.com/platform/api
  baseURL: https://api.slash.com
  tags:
  - Contact
  properties:
  - type: OpenAPI
    url: openapi/joinslash-com-contact-api-openapi.yml
- aid: joinslash-com:joinslash-com-crypto-api
  name: Slash Crypto API
  description: The Crypto API from Slash — 1 operation(s) for crypto.
  humanURL: https://www.slash.com/platform/api
  baseURL: https://api.slash.com
  tags:
  - Crypto
  properties:
  - type: OpenAPI
    url: openapi/joinslash-com-crypto-api-openapi.yml
- aid: joinslash-com:joinslash-com-customer-api
  name: Slash Customer API
  description: The Customer API from Slash — 3 operation(s) for customer.
  humanURL: https://www.slash.com/platform/api
  baseURL: https://api.slash.com
  tags:
  - Customer
  properties:
  - type: OpenAPI
    url: openapi/joinslash-com-customer-api-openapi.yml
- aid: joinslash-com:joinslash-com-developer-account-api
  name: Slash Developer Account API
  description: The Developer Account API from Slash — 1 operation(s) for developer account.
  humanURL: https://www.slash.com/platform/api
  baseURL: https://api.slash.com
  tags:
  - Developer Account
  properties:
  - type: OpenAPI
    url: openapi/joinslash-com-developer-account-api-openapi.yml
- aid: joinslash-com:joinslash-com-developer-application-api
  name: Slash Developer Application API
  description: The Developer Application API from Slash — 2 operation(s) for developer application.
  humanURL: https://www.slash.com/platform/api
  baseURL: https://api.slash.com
  tags:
  - Developer Application
  properties:
  - type: OpenAPI
    url: openapi/joinslash-com-developer-application-api-openapi.yml
- aid: joinslash-com:joinslash-com-expense-report-api
  name: Slash Expense Report API
  description: The Expense Report API from Slash — 7 operation(s) for expense report.
  humanURL: https://www.slash.com/platform/api
  baseURL: https://api.slash.com
  tags:
  - Expense Report
  properties:
  - type: OpenAPI
    url: openapi/joinslash-com-expense-report-api-openapi.yml
- aid: joinslash-com:joinslash-com-fdx-api
  name: Slash Fdx API
  description: The Fdx API from Slash — 8 operation(s) for fdx.
  humanURL: https://www.slash.com/platform/api
  baseURL: https://api.slash.com
  tags:
  - Fdx
  properties:
  - type: OpenAPI
    url: openapi/joinslash-com-fdx-api-openapi.yml
- aid: joinslash-com:joinslash-com-invoice-api
  name: Slash Invoice API
  description: The Invoice API from Slash — 14 operation(s) for invoice.
  humanURL: https://www.slash.com/platform/api
  baseURL: https://api.slash.com
  tags:
  - Invoice
  properties:
  - type: OpenAPI
    url: openapi/joinslash-com-invoice-api-openapi.yml
- aid: joinslash-com:joinslash-com-legal-entity-api
  name: Slash Legal Entity API
  description: The Legal Entity API from Slash — 1 operation(s) for legal entity.
  humanURL: https://www.slash.com/platform/api
  baseURL: https://api.slash.com
  tags:
  - Legal Entity
  properties:
  - type: OpenAPI
    url: openapi/joinslash-com-legal-entity-api-openapi.yml
- aid: joinslash-com:joinslash-com-merchant-api
  name: Slash Merchant API
  description: The Merchant API from Slash — 2 operation(s) for merchant.
  humanURL: https://www.slash.com/platform/api
  baseURL: https://api.slash.com
  tags:
  - Merchant
  properties:
  - type: OpenAPI
    url: openapi/joinslash-com-merchant-api-openapi.yml
- aid: joinslash-com:joinslash-com-merchant-category-api
  name: Slash Merchant Category API
  description: The Merchant Category API from Slash — 1 operation(s) for merchant category.
  humanURL: https://www.slash.com/platform/api
  baseURL: https://api.slash.com
  tags:
  - Merchant Category
  properties:
  - type: OpenAPI
    url: openapi/joinslash-com-merchant-category-api-openapi.yml
- aid: joinslash-com:joinslash-com-oauth2-api
  name: Slash Oauth2 API
  description: The Oauth2 API from Slash — 2 operation(s) for oauth2.
  humanURL: https://www.slash.com/platform/api
  baseURL: https://api.slash.com
  tags:
  - Oauth2
  properties:
  - type: OpenAPI
    url: openapi/joinslash-com-oauth2-api-openapi.yml
- aid: joinslash-com:joinslash-com-payment-intent-api
  name: Slash Payment Intent API
  description: The Payment Intent API from Slash — 2 operation(s) for payment intent.
  humanURL: https://www.slash.com/platform/api
  baseURL: https://api.slash.com
  tags:
  - Payment Intent
  properties:
  - type: OpenAPI
    url: openapi/joinslash-com-payment-intent-api-openapi.yml
- aid: joinslash-com:joinslash-com-payments-api
  name: Slash Payments API
  description: The Payments API from Slash — 4 operation(s) for payments.
  humanURL: https://www.slash.com/platform/api
  baseURL: https://api.slash.com
  tags:
  - Payments
  properties:
  - type: OpenAPI
    url: openapi/joinslash-com-payments-api-openapi.yml
- aid: joinslash-com:joinslash-com-refund-api
  name: Slash Refund API
  description: The Refund API from Slash — 2 operation(s) for refund.
  humanURL: https://www.slash.com/platform/api
  baseURL: https://api.slash.com
  tags:
  - Refund
  properties:
  - type: OpenAPI
    url: openapi/joinslash-com-refund-api-openapi.yml
- aid: joinslash-com:joinslash-com-slash-public-api-api
  name: Slash Slash Public API
  description: The Slash Public API API from Slash — 0 operation(s) for slash public api.
  humanURL: https://www.slash.com/platform/api
  baseURL: https://api.slash.com
  tags:
  - Slash Public API
  properties:
  - type: OpenAPI
    url: openapi/joinslash-com-slash-public-api-api-openapi.yml
- aid: joinslash-com:joinslash-com-task-api
  name: Slash Task API
  description: The Task API from Slash — 4 operation(s) for task.
  humanURL: https://www.slash.com/platform/api
  baseURL: https://api.slash.com
  tags:
  - Task
  properties:
  - type: OpenAPI
    url: openapi/joinslash-com-task-api-openapi.yml
- aid: joinslash-com:joinslash-com-tokens-api
  name: Slash Tokens API
  description: The Tokens API from Slash — 1 operation(s) for tokens.
  humanURL: https://www.slash.com/platform/api
  baseURL: https://api.slash.com
  tags:
  - Tokens
  properties:
  - type: OpenAPI
    url: openapi/joinslash-com-tokens-api-openapi.yml
- aid: joinslash-com:joinslash-com-transaction-api
  name: Slash Transaction API
  description: The Transaction API from Slash — 5 operation(s) for transaction.
  humanURL: https://www.slash.com/platform/api
  baseURL: https://api.slash.com
  tags:
  - Transaction
  properties:
  - type: OpenAPI
    url: openapi/joinslash-com-transaction-api-openapi.yml
- aid: joinslash-com:joinslash-com-transfer-api
  name: Slash Transfer API
  description: The Transfer API from Slash — 1 operation(s) for transfer.
  humanURL: https://www.slash.com/platform/api
  baseURL: https://api.slash.com
  tags:
  - Transfer
  properties:
  - type: OpenAPI
    url: openapi/joinslash-com-transfer-api-openapi.yml
- aid: joinslash-com:joinslash-com-transfers-api
  name: Slash Transfers API
  description: The Transfers API from Slash — 1 operation(s) for transfers.
  humanURL: https://www.slash.com/platform/api
  baseURL: https://api.slash.com
  tags:
  - Transfers
  properties:
  - type: OpenAPI
    url: openapi/joinslash-com-transfers-api-openapi.yml
- aid: joinslash-com:joinslash-com-virtual-account-api
  name: Slash Virtual Account API
  description: The Virtual Account API from Slash — 2 operation(s) for virtual account.
  humanURL: https://www.slash.com/platform/api
  baseURL: https://api.slash.com
  tags:
  - Virtual Account
  properties:
  - type: OpenAPI
    url: openapi/joinslash-com-virtual-account-api-openapi.yml
- aid: joinslash-com:joinslash-com-webhook-api
  name: Slash Webhook API
  description: The Webhook API from Slash — 2 operation(s) for webhook.
  humanURL: https://www.slash.com/platform/api
  baseURL: https://api.slash.com
  tags:
  - Webhook
  properties:
  - type: OpenAPI
    url: openapi/joinslash-com-webhook-api-openapi.yml
- aid: joinslash-com:joinslash-com-well-known-api
  name: Slash .well Known API
  description: The .well Known API from Slash — 2 operation(s) for .well known.
  humanURL: https://www.slash.com/platform/api
  baseURL: https://api.slash.com
  tags:
  - .well Known
  properties:
  - type: OpenAPI
    url: openapi/joinslash-com-well-known-api-openapi.yml
x-backed-by:
- nea
x-enrichment:
  date: '2026-10-26'
  status: enriched
  artifacts_added: 31
  pass: modular-v1
  engine: identity=local,contract=local,surfaces=local,docs=local,regulatory=local

Slash API — frequently asked questions

Does Slash have an API?

Yes. APIs.io lists 32 APIs from Slash, including Slash Account API, Slash Agent Requests API and Slash Analytics API, and 29 more.

Is there an OpenAPI specification for the Slash API?

Yes. APIs.io indexes 32 OpenAPI specifications for Slash, each linked for download from this page.

How do I authenticate with the Slash API?

Slash documents its authentication (1 scheme). The details are profiled on APIs.io as Joinslash Com Authentication.

How much does the Slash API cost?

APIs.io lists 2 pricing plans for Slash, with each plan's price, limits and inclusions under Pricing Plans on this page.

Is the Slash API ready for AI agents?

Slash has a Kin Score of 52.0 out of 100 (developing) and an Agent Readiness score of 46.1 (agent-native), scored by API Evangelist on 2026-10-31.

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Tools for providers

9 MCP tools reach this

find_providersBrowse and filter every provider in the catalog.
get_provider_artifactsEvery artifact this provider publishes, grouped by type.
get_provider_operationsEvery operation across all of their OpenAPIs — one call instead of parsing every spec.
get_provider_toolsEvery MCP tool they ship, with the operation each wraps.
get_provider_evidenceHow each part of their score was established. Free — the basis for a claim should not sit behind it.
get_provider_ratingPRO — composite, band, trend and facet scores.
apis_io_searchSTART HERE — APIs, providers and tags for one query, each with its total.
resolveTurn a domain, URL or GitHub org into the provider it belongs to.
find_cohortsEvery scored population of providers in the catalog.

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curl "https://apis.io/api/v1/providers/joinslash-com/evidence"

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