# Gupshup

**Canonical:** https://apis.io/providers/gupshup/  
**Website:** https://www.gupshup.io  
**APIs profiled:** 6

Gupshup is a conversational messaging and CPaaS platform (headquartered in India) that lets businesses send and receive messages across WhatsApp, SMS, RCS, and other channels, plus build chatbots and conversational AI journeys. The developer platform exposes REST APIs on api.gupshup.io - most prominently the WhatsApp Business API (send session and template messages, opt-in management, templates, media, and inbound webhooks) - authenticated with an apikey header and scoped to a registered app. Separate SMS, RCS, and Partner API surfaces are also documented.

## Kin Score — 23.9 / 100 (emerging)

Scored 2026-08-25 under rubric 0.14.0. Trend: falling (-10.7 from 34.6).

| Facet | Score |
|---|---|
| Discoverability | 64.8 |
| Contract Quality | 14.3 |
| Governance | 0.0 |
| Contract Governance | 0.0 |
| Operational Transparency | 31.6 |
| Developer Ergonomics | 19.0 |
| Commercial Clarity | 39.5 |
| Access Clarity | 39.5 |

Regulatory layer — **Telecommunications**: 16.7 (matched via tags).

## Agent readiness — 19.8 (agent-aware)

| Dimension | Value |
|---|---|
| Spec Presence | yes |
| Agentic Access | derived |
| Reversibility Documented | no |
| MCP Server | no |
| Auth Clarity | bearer |
| Idempotency | no |
| Error Semantics | no |
| OpenAPI Examples | no |
| Rate Limit Signal | documented |
| Event Surface Described | no |
| Agent Skills | no |
| Well Known Catalog | no |
| Consent Identity | no |
| Agent Card | no |
| Dry Run Mode | no |
| Delegated Identity | no |
| Protected Resource Metadata | no |
| Dynamic Client Registration | no |
| Agentic Commerce | no |

## Access

Paid · Self-serve signup — onboarding: self-serve, pricing: paid, trial: no (confidence: high).

## APIs (6)

- **Gupshup SMS API** — Broadcast SMS to a single number or many numbers programmatically via POST /msg on the /sm surface. Note - Gupshup has announced end-of-life for the /sm endpoints and recommends...
- **Gupshup RCS API** — Send RCS (Rich Communication Services) business messages - rich cards, carousels, suggested replies, and media. RCS is onboarding-gated (username / password issued by Gupshup) a...
- **Gupshup Partner API** — Token-authenticated Partner surface (partner.gupshup.io) for BSPs and resellers - manage apps, templates, subscriptions/callbacks, and send messages through Meta-format passthro...
- **Gupshup Messaging API** — Send WhatsApp session messages.
- **Gupshup Opt-In API** — Manage user opt-in / opt-out and list interacted users.
- **Gupshup Templates API** — Send and list WhatsApp template (HSM) messages.

## Agentic access (1)

- **Gupshup Agentic Access** — 6 operations · 4 acting

## Security (2)

- **Gupshup Authentication** — apiKey · 1 scheme
- **Gupshup Domain Security** — TLSv1.3 · HSTS · DMARC

## Plans (1)

- **Gupshup Plans Pricing**

## Tags

Messaging, WhatsApp, Conversational AI, CPaaS, SMS, RCS, India, Chatbots, Business Messaging, Communications

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