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Amazon Lex logo

Amazon Lex

Agent-Ready Verified
Agent-Ready SaaS Index · aws.amazon.com · scored 2026-05-09 · rubric v2.0
Score 75 / 100
Bot Platforms
Free tier
Self-serve checkout
Public API

Amazon Lex scores 75/100 on xpay's Agent-Ready Index v2: partial pricing visibility; self-serve checkout is available; a public API exists with documentation; usage-based / per-token pricing is published; a free entry path exists.

See Amazon Lex pricing summaryLive pricing page
Pricing
Amazon Lex pricing
As of 2026-05-09 · aws.amazon.com/lex/
Pay-as-you-go API
Sign up, get an API key, pay per call

Self-serve checkout with public pricing — an autonomous agent can complete the purchase without a sales call.

Signup: email
API key
Instant use
Free tier
Score breakdown · rubric v2.0
How Amazon Lex scores on the agent-ready dimensions

Public pricing visibility

12 / 15

Self-serve checkout

15 / 15

Public API + docs

16 / 20

Usage-based / metered pricing

13 / 20

Free entry path

7 / 7

No sales call required

7 / 7

Card / wallet / x402 payment

5 / 6

Machine-readable bonus (MCP / OpenAPI)

0 / 10

Total
75 / 100
Effective pricing
What it actually costs at typical scale
Within free tier limits
$0/mo
· 10,000 text requests per month· 5,000 speech requests per month
Confidence: high
Agent purchase verdict
Can an autonomous agent transact here?
Agent-ready
LLM score: 80/100

Can create account

Yes

Can enter payment method

Yes

Can upgrade plan

No

Can buy more usage

Yes

Can cancel online

Yes

Payment methods

card

Human approval recommended

No

Pricing transparency

full

Purchase motion

self_serve

Demo required

No

Quote required

No

Annual commit required

No

Auto-renewal mentioned

No

Cancellation policy visible

No

Refund policy visible

No

Invoice payment available

Unknown

Purchase orders supported

Unknown

MSA required

Unknown

DPA available

Unknown

Security review required

Unknown

API readiness
API & developer surface

API-first product

Yes

Sandbox present

Unknown

Webhooks

Unknown

MCP mentioned

No

Competitive intel
Positioning & ecosystem

Buyer persona

developer
enterprise

Integrations mentioned
Slack
Facebook Messenger
Twilio SMS
Agent purchase simulation
Six-step check: can an agent actually buy from Amazon Lex?
◐

Discover price

✗

Select a plan

✗

Pay per task

✗

Avoid a sales call

◐

API docs without auth

✗

Estimate cost upfront

Analysis
Pros and cons for AI agents
Observational summary written by xpay from the signals captured on 2026-05-06. Not a review of the product — only of its current pricing posture for agent buyers.
✓ For an AI agent
  • A free tier exists, lowering the bar for an agent builder to prototype before committing budget.
◐ Opportunities for the provider
  • No per-unit price was advertised, so an agent has no way to estimate the cost of a single task.
  • All advertised tiers route to a sales contact form; an agent cannot complete a purchase autonomously.
  • API documentation is gated or absent; an agent cannot inspect the integration surface without authentication.
  • PPU requires account creation and an issued API key; a fully unauthenticated agent purchase is not yet supported.
  • No /.well-known/ai-pricing.json or equivalent machine-readable pricing manifest is published — agents must rely on HTML scraping.
One-line fix
How Amazon Lex could lift its score

Add a per-unit price (e.g. $X / 1K calls) to the pricing page so an agent can compute its own cost before committing.

pricing_visible

false

headline_phrasing

Amazon Lex - AI Chat Builder — Add sophisticated, natural language, AI-powered chatbots to new and existing applications.

tier_count

0

lowest_paid_entry_usd

null

free_tier

true

free_tier_terms

null

per_unit_price

null

annual_required

false

self_serve_paid_tiers

1

sales_only_tiers

0

public_api_docs_url

https://builder.aws.com/

api_docs_auth_walled

false

ai_pricing_json_present

false

agents_txt_present

false

anonymous_purchase_path

false

per_unit_classification

null

usage_headline_present

false

custom_tier_present

true

agent_friendly

{"ai_pricing_json":false,"agents_txt":false,"llms_txt":false,"sitemap_xml":false,"mcp_server_card":false,"agent_skills_index":false,"x402_supported":false}

View raw extracted page text →
Page heading: Amazon Lex - AI Chat Builder
CTAs (40): Skip to main content · Filter: All · English · Contact us · AWS Marketplace · Support · My account · Search · Sign in to console · Create account · Overview · Features
Price tokens (1): $200
Skip to main content Filter: All English Contact us AWS Marketplace Support My account Search Filter: All Sign in to console Create account Amazon Lex Overview Features Use Cases Pricing Resources More Products Machine Learning Amazon Lex Amazon Lex - AI Chat Builder Add sophisticated, natural language, AI-powered chatbots to new and existing applications. Create an AWS account Get Started with Amazon Lex What is Amazon Lex? Powered by the same technology as Alexa, Amazon Lex is an AI chat builder that allows users to interact with any application using natural language voice or chat. Use Amazon Lex to build and deploy conversational AI interfaces for any application. Integrating AI chat into existing business processes and use cases gives users more flexibility and support to get work done in ways that are natural to your users. AI chat experiences in customer-facing applications enhance customer satisfaction. Play Benefits of Amazon Lex Leverage scalable, secure generative AI Create voice and text interfaces powered by generative AI. Amazon Lex provides an easy-to-use, secure, scalable end-to-end solution to build, publishdeploy, and monitor AI chatbots. Use the power of generative AI to allow users to complete tasks through voice and natural language interactions. Give users more options in how they interact with your applications and systems. Drive efficiency with omnichannel engagement Deploy your text and voice AI chatbots across mobile devices and chat services like Fa…
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Are you Amazon Lex? Something off in this listing?
Agent-Ready Spec
Amazon Lex
Agent-Ready Verified

75

/ 100 (rubric v2.0)
Category

Bot Platforms

Pricing model

Not advertised

Tier count

0

Free tier

Yes

Lowest paid entry

Sales-led

Self-serve / sales-only tiers

1 / 0

Public API docs

Public

Anonymous purchase path

No

Machine-readable pricing

Not published

Last refreshed

2026-05-09

Pricing intelligenceInsights extracted from aws.amazon.com/lex/
Pricing model

Pay-as-you-go API

Agent-purchase verdict
Agent-ready
80/100 · v2.1
Canonical answer

Amazon Lex pricing is pay-as-you-go with no upfront fees; a free tier offers up to 10,000 text and 5,000 speech requests per month for the first year.

Cheapest entry

Free tier (Free)

Actions
Open live pricing page
Verdict reflects Agent-Ready Verified status under rubric v2.0. Source observed at https://aws.amazon.com/lex/.
Agent-friendly features0 of 7 present
Discovery files and protocols
Side-channel signals — informational, not part of the score. Each protocol is independent; adoption signals the publisher is thinking about agent buyers.

ai-pricing.json

agents.txt

llms.txt

sitemap.xml

MCP Server Card

Agent Skills

x402 / MPP

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