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QuillBot logo

QuillBot

Partially Agent-Ready
Agent-Ready SaaS Index · quillbot.com · scored 2026-05-09 · rubric v2.0
Score 49 / 100
AI Writing Assistant
Free tier
Public API

QuillBot scores 49/100 on xpay's Agent-Ready Index v2: partial pricing visibility; self-serve checkout is available; a free entry path exists.

See QuillBot pricing summaryLive pricing page
Pricing
QuillBot pricing
As of 2026-05-09 · quillbot.com/premium
Free
Free
Paraphrase up to 125 words
Fix basic grammar errors
Humanize up to 125 words, 6 uses/day
Access limited AI Detector
Premium
$2.5/mo
or $4.17/mo billed annually
Unlimited paraphrasing
Advanced grammar recommendations
Unlimited Humanizer
Custom summaries
Unlimited AI Detector
Team
Sales
Contact sales
Team usage metrics
User management dashboard
Centralized billing
Data control
Priority assistance
Score breakdown · rubric v2.0
How QuillBot scores on the agent-ready dimensions

Public pricing visibility

15 / 15

Self-serve checkout

15 / 15

Public API + docs

0 / 20

Usage-based / metered pricing

0 / 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
49 / 100
Effective pricing
What it actually costs at typical scale
1 user on Free plan
$0/mo
· No paid features used
Confidence: high
1 user on Premium plan (monthly billing)
$2.5/mo
· Monthly billing selected
Confidence: high
Agent purchase verdict
Can an autonomous agent transact here?
Agent-ready
LLM score: 60/100

Can create account

Yes

Can enter payment method

Yes

Can upgrade plan

Yes

Can buy more usage

No

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

Unknown

Auto-renewal mentioned

No

Cancellation policy visible

Yes

Refund policy visible

No

Invoice payment available

Yes

Purchase orders supported

Yes

MSA required

No

DPA available

No

Security review required

No

Trial

Available, no card

Annual discount

40% off

Competitive intel
Positioning & ecosystem
Headline

“Empower your writing with Premium”

Buyer persona

smb
student
professional

Integrations mentioned
Chrome extension
Edge extension
macOS app
Word add‑in
Android app
iOS app
Agent purchase simulation
Six-step check: can an agent actually buy from QuillBot?
✓

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
  • Pricing is publicly visible on an indexable page — agents can read tiers without scraping past auth.
  • Every advertised tier is self-serve; no tier requires scheduling a call.
  • 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.
  • API documentation is gated or absent; an agent cannot inspect the integration surface without authentication.
  • No /.well-known/ai-pricing.json or equivalent machine-readable pricing manifest is published — agents must rely on HTML scraping.
One-line fix
How QuillBot 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

true

headline_phrasing

Empower your writing with Premium — Achieve new heights when you write without limits

tier_count

3

lowest_paid_entry_usd

null

free_tier

true

free_tier_terms

null

per_unit_price

null

annual_required

true

self_serve_paid_tiers

0

sales_only_tiers

1

public_api_docs_url

https://quillbot.com/docs

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":true,"sitemap_xml":true,"mcp_server_card":false,"agent_skills_index":false,"x402_supported":false}

View raw extracted page text →
Page heading: Empower your writing with Premium
CTAs (40): New · Projects · Paraphraser · Grammar Checker · AI Detector · Plagiarism Checker · AI Humanizer · AI Chat · AI Image Generator · Translate · Summarizer · Citation Generator
Price tokens (5): $0 · $2.50 · $4.17 · $0 · $4.17
QuillBot PremiumNewProjectsParaphraserGrammar CheckerAI DetectorPlagiarism CheckerAI HumanizerAI ChatAI Image GeneratorTranslateSummarizerCitation GeneratorNewProjectsParaphraserGrammar CheckerAI DetectorPlagiarism CheckerAI HumanizerAI ChatAI Image GeneratorTranslateSummarizerCitation GeneratorEmpower your writing with PremiumAchieve new heights when you write without limitsAll Premium plans include:ParaphraserGrammarCheckerPlagiarismCheckerAI DetectorAI HumanizerSummarizerAppsBrowserExtensionsMuch moreFreeFix errors, strengthen your work,and get help brainstorming$0 USDPer monthSign upFeatures you’ll love:Paraphrase up to 125 words Paraphrase in 2 modes Fix basic grammar errors Humanize up to 125 words, 6 uses/day Generate basic summaries Access AI Detector (limited) Most popularPremiumFeel confident your writing is clear,impactful, and flawless$2.50$4.17 USDPer month, billed annuallyGet 40% offEverything in a free plan, plus:Unlimited paraphrasingParaphrase in unlimited modesGet advanced grammar recommendationsHumanize without limits with human score & tone insightsCreate custom summariesAccess AI Detector (unlimited)Prevent accidental plagiarismAnd much moreTeam PlanEmpower your organization to write with clarity and confidenceExplore Team PlanEverything in Premium plan, plus:Team usage metricsUser management dashboardCentralized billingData controlPriority assistance & account management supportAnd much moreCompare plan featuresEverything you need to succeedEfficiencyFle…
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Are you QuillBot? Something off in this listing?
Agent-Ready Spec
QuillBot
Partially Agent-Ready

49

/ 100 (rubric v2.0)
Category

AI Writing Assistant

Pricing model

Empower your writing with Premium — Achieve new heights when you write without limits

Tier count

3

Free tier

Yes

Lowest paid entry

Sales-led

Self-serve / sales-only tiers

0 / 1

Public API docs

Public

Anonymous purchase path

No

Machine-readable pricing

Not published

Last refreshed

2026-05-09

Pricing intelligenceInsights extracted from quillbot.com/premium
Pricing model

Tier-based subscription

Agent-purchase verdict
Agent-ready
60/100 · v2.1
Canonical answer

QuillBot pricing starts at $0/mo for the Free plan; paid Premium plan starts at $2.50/mo monthly or $4.17/mo billed annually with 40% off.

Cheapest entry

Free plan (Free)

Actions
Open live pricing page
Verdict reflects Partially Agent-Ready status under rubric v2.0. Source observed at https://quillbot.com/premium.
Agent-friendly features2 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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CompanyAgentically Inc. (d/b/a xpay✦)1875 Mission St, Ste 103San Francisco, CA 94103, United Stateslegal@xpay.sh · privacy@xpay.sh
or ask your AI app
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About xpayAgency PartnersGitHubDiscordllms.txt
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