# Intercom Fin Alternatives (2026): 5 Enterprise & Self-Serve Support Agents Compared

> Source: https://theagentsindex.com/intercom-fin/alternatives (curated, quality-gated, re-verified)

Intercom Fin is the most broadly deployed AI support agent on the market: self-serve, priced at a transparent $0.99 per resolution, and able to layer onto almost any helpdesk in under an hour. Two honest caveats send buyers looking elsewhere anyway — Fin bills for "assumed" resolutions when a customer simply stops replying, and Salesforce's pending ~$3.6B acquisition (announced June 2026, expected to close around Salesforce's fiscal Q4 2027) leaves its independent roadmap an open question. The five tools below are this site's other Published, individually researched support-agent listings, each earning its place for a different reason rather than being a drop-in clone: Ada is the only other one with a genuine self-serve developer API and MCP server, though its pricing itself is fully sales-gated; Crescendo is the closest match on Fin's own per-resolution billing model but bundles a fully outsourced CX operation around it; Cresta keeps human agents in the loop instead of replacing them outright; and Decagon and Sierra are both fully enterprise, custom-quoted platforms with no public price at all. Every fact below traces to each tool's own already-Published, already-sourced listing on this site, re-read fresh for this page.

| # | Name | What it is | Why it's here | Pricing | API |
| --- | --- | --- | --- | --- | --- |
| 1 | [Ada](https://theagentsindex.com/ada.md) | A Toronto-founded AI customer service agent platform from 2016. Sales-led, custom-quoted, with a Reasoning Engine, MCP server and a public V2 REST API that newer rivals in the category do not all publish. | The only other listing here with a genuine self-serve developer surface — a documented Conversations/Email API and an MCP server, just like Fin's — but Ada publishes no price sheet anywhere, gates every engagement through enterprise sales, and carries a real G2-vs-Trustpilot satisfaction gap (4.6 admin-side, 2.0 end-customer) that Fin's own reviews don't show. | Custom, contact sales | Yes |
| 2 | [Crescendo](https://theagentsindex.com/crescendo.md) | Fully-managed, AI-native CX platform that replaces your entire support stack with agents, QA and human staffing, billed per resolved outcome. | The closest match on Fin's own billing shape — a public per-resolution starting price ($2.99, versus Fin's $0.99) — but Crescendo bundles the entire support operation (staffing, 100%-of-conversation QA, knowledge-base upkeep) into one managed engagement that starts with a sales-led pilot, not a self-serve signup like Fin's. | From $2.99 per resolution / per resolution | No |
| 3 | [Cresta](https://theagentsindex.com/cresta.md) | Unifies an autonomous AI Agent, real-time human Agent Assist and Conversation Intelligence on one contact-center platform, enterprise, custom-quoted, no self-serve tier. | Trades Fin's replace-the-conversation model for augment-the-human-agent: Cresta pairs an autonomous AI Agent with real-time Agent Assist for reps still in the loop, and is one of only two alternatives here with any public price point — though that single number covers a narrower Agent Assist SKU starting at $150,000/year, not the full platform. | $150,000 / year (12-month contract) | Yes |
| 4 | [Decagon](https://theagentsindex.com/decagon.md) | Enterprise AI customer service agents for chat, voice and email. $4.5B valuation, custom contracts, no public price. | A newer, better-funded ($4.5B valuation) enterprise alternative built around Agent Operating Procedures — support staff, not engineers, write agent behaviour in plain English — but there is no public pricing anywhere, versus Fin's transparent $0.99-per-resolution rate card, and a sales-led engagement replaces Fin's self-serve 14-day trial. | Custom | No |
| 5 | [Sierra](https://theagentsindex.com/sierra.md) | Bret Taylor’s enterprise agent platform, branded AI agents that resolve customer issues end to end, priced on outcomes. | The most different pick: a fully custom-quoted, sales-only enterprise engagement co-founded by Bret Taylor, with roughly $1.585B raised at a valuation above $15B, for buyers who want a software platform they configure themselves (Agent Studio) rather than Fin's pay-per-resolution, self-serve product. | Custom | — |

## Methodology

These five are drawn from this site's own Published, individually-researched support-agents category — six listings in total, the same corpus behind /best-ai-support-agents and the site's AI-customer-support buyer guide — never a fresh, unverified list assembled for this page. A tool qualifies only if we have already fact-checked its pricing model and sourced its pros, cons and a "best for" call. The order runs from closest-to-furthest from Fin's own self-serve, transparently- priced model: Ada first, because it is the only other listing with a genuine self-serve API surface; Crescendo next, because it publishes the only other per-resolution starting price in the category; Cresta third, because its augment-not-replace angle and single public Agent Assist price point sit between Crescendo's partial transparency and the two fully opaque enterprise platforms; Decagon and Sierra last, because both are entirely custom-quoted with no self-serve path or public price at all.