# Slash

**Canonical:** https://apis.io/providers/slash/  
**Website:** https://slash.com  
**APIs profiled:** 26

Slash is a business banking and finance platform for modern companies — startups, agencies, e-commerce sellers, and enterprises — combining business checking, unlimited virtual and physical corporate cards, ACH/wire and real-time payments, global USD accounts, stablecoin on/off ramps, treasury, invoicing, expense management, and reporting on one platform. Founded in 2021 and valued at $1.4B after a 2026 Series C led by Ribbit Capital, Slash exposes a REST API (currently in Beta) covering accounts, virtual accounts, cards and card groups, transactions, transfers, invoices, contacts and customers, expense reports, webhooks, and FDX-compliant financial data access — plus an official hosted MCP server, Agent Requests with human-in-the-loop approval, and Python and Node.js SDKs for AI-agent and programmatic integration.

## Kin Score — 58.9 / 100 (strong)

Scored 2026-08-17 under rubric 0.11.0. Trend: flat (+0.0 from 58.9).

| Facet | Score |
|---|---|
| Discoverability | 92.6 |
| Contract Quality | 61.4 |
| Governance | 20.8 |
| Operational Transparency | 39.5 |
| Developer Ergonomics | 73.4 |
| Commercial Clarity | 52.6 |

Regulatory layer — **Banking & Open Finance**: 67.1 (matched via tags).

## Agent readiness — 62.8 (agent-native)

| Dimension | Value |
|---|---|
| Spec Presence | yes |
| Agentic Access | derived |
| MCP Server | yes |
| Auth Clarity | yes |
| Idempotency | verified |
| Error Semantics | verified |
| OpenAPI Examples | no |
| Rate Limit Signal | no |
| Event Surface Described | yes |
| Agent Skills | derived |
| Well Known Catalog | no |
| Consent Identity | yes |
| Agent Card | no |
| Dry Run Mode | no |

## Access

Self-serve signup — onboarding: self-serve, pricing: unknown, trial: no (confidence: medium).

## APIs (26)

- **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 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 — 13 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 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 — 1 operation(s) for .well known.

## MCP servers (1)

- **slash-mcp.yml**

## Agentic access (1)

- **Slash Agentic Access** — 105 operations · 48 acting

## Security (3)

- **Slash Authentication** — apiKey/http · 3 schemes
- **Slash Domain Security** — TLSv1.3 · HSTS · DMARC
- **Slash Vulnerability Disclosure** — security.txt · contact published

## Tags

Company, Banking, Payments, Financial Services, Fintech, Corporate Cards, Business Banking, Invoicing, Expense Management, Treasury, FDX

---

Profiled by [API Evangelist](https://apievangelist.com) and published on [APIs.io](https://apis.io/providers/slash/). Scores are computed from the provider's own public artifacts under a published rubric.