Ably

Depot pick for realtime agent↔user channels (token streaming, presence, multiplayer agent UIs). Not a…

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Depot pick for realtime agent↔user channels (token streaming, presence, multiplayer agent UIs). Not a substitute for email/SMS orchestration or durable workflow engines. Strengths: Battle-tested pub/sub + presence for streaming agent tokens to clients; Clear free→$29 path; strong SLAs on Enterprise; AI Transport scenarios documented on pricing page.

Overall

8.3

curated_estimate

confidence: high · as of 2026-09-14

Capability fit

8.8

Price / performance

7.4

Latency / reliability

9.2

Developer & agent DX

8.4

Privacy / data retention

8.6

Lock-in risk (higher = worse)

5.2

Maturity / track record

9.2

Lock-in risk: higher = more lock-in (worse). Overall already inverts this dimension.

Sources: Ably pricing: https://ably.com/pricing · Ably pub/sub pricing docs: https://ably.com/docs/platform/pricing · Ably: https://ably.com

Depot pick for realtime agent↔user channels (token streaming, presence, multiplayer agent UIs). Not a substitute for email/SMS orchestration or durable workflow engines.

Strengths

· Battle-tested pub/sub + presence for streaming agent tokens to clients
· Clear free→$29 path; strong SLAs on Enterprise
· AI Transport scenarios documented on pricing page

Weaknesses

· Usage math (msg + conn + channel mins) easy to under-estimate
· Not a notification preference/orchestrator (pair with Knock/Courier)
· Overkill for pure server-side agent queues (use QStash/SQS)

Pricing notes

As of 2026-10-24 (ably.com/pricing, fetched 2026-10-24): Messages '$2.50 / million' ('As low as $0.50/M with volume discount'); channels and connections '$1.00 / million mins' each ('As low as $0.20/M with volume discount'); additional data transfer '$0.25 / GiB'. Packages: Free '$0' ('200 concurrent connections', '500 messages / second', '6M messages / month'); Standard '$29 / month + usage' ('10k concurrent channels', '10k concurrent connections'); Pro '$399 / month + usage' ('50k concurrent channels', '50k concurrent connections'); Enterprise 'Custom' ('99.999% uptime SLAs', 'HIPAA BAA', 'Dedicated cluster'). The page publishes no per-MAU price. Pricing examples on the page include an 'AI support chatbot'. See plan limits (/api/estimate) for the encoded plans.

Regions: global, us, euLast reviewed: 2026-09-14Status: active

Sourced pricing

Contract status unit_mismatch · unit_mismatch. Single normalized $/1M: null. Machine list: /api/pricing?provider=ably

Messages · usd_per_million_messages · $2.5 · unit_mismatch · normalized null
Channel minutes · usd_per_million_channel_minutes · $1 · unit_mismatch · normalized null
Connection minutes · usd_per_million_connection_minutes · $1 · unit_mismatch · normalized null
Standard · usd_per_month · $29 · unit_mismatch · normalized null
Pro · usd_per_month · $399 · unit_mismatch · normalized null
Data transfer · usd_per_gib · $0.25 · unit_mismatch · normalized null

Community signals

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