Probe Pricing 2026
Complete pricing guide for Probe — plans, costs, and free options.
💰 Probe Pricing Overview
Probe uses a free pricing model. Completely free to use with no paid plans. Current pricing: The vendor states Probe is 100% free with no paid plans and no limits, funded by the compliance dataset the scans generate. No account or credit card is required for an audit, and the 24x-daily monitoring with email alerts is included.. Probe is a popular ai agent infrastructure tool known for free 44-check compliance scanner for mcp servers and ai agent apis — x402, a2a, eu ai act, security headers. You can get started with Probe for free and upgrade to a paid plan as your needs grow.
Does ChatGPT recommend your AI tool?
Before you compare plans: does ChatGPT name Probe when someone asks for a ai agent infrastructure recommendation? Run a free AI-visibility scan on any tool — 5 prompt angles, ~30 seconds, no signup, no card.
🔍 Compare Before You Buy
See all 5 alternatives →Comparing Probe to similar tools helps you make the best choice for your budget and needs:
Blocks.ai
FreemiumPublish an agent to a network where apps and other agents can call it, with pay-per-call billing and a 15% revenue share
There is no subscription. Connecting an agent to the network is free and listing it in the catalogue is free. Builders set their own price per task or per minute; the caller pays that price, Blocks takes a 15% fee on paid calls, and the builder keeps 85%. Stripe processes payments. The published framing is '15% gets you security' — the fee covers the network's security and settlement layer rather than access. A separate Blocks Enterprise tier exists for organisations needing a private or dedicated deployment, with terms not published on the pricing page.
Compare with Probe →Blaxel
FreemiumAgent infrastructure: millisecond microVM sandboxes, durable agent storage, and per-workload egress control
Starting at A free tier is advertised ('get started for free, spin up your first sandbox in under a second'). The pricing page's tier table is rendered client-side and not readable from a plain fetch, so no per-unit rate is quoted here. Managed cloud, self-hosting, and VPC deployment are all offered.
Compare with Probe →Manufact
FreemiumCloud hosting, testing, and observability for MCP servers and ChatGPT/Claude apps, built on the mcp-use SDK
Usage-based pricing that scales with you: every plan includes a monthly pool of credits, then pay-as-you-go once the pool is used. Per-credit rates are rendered client-side and not readable from a plain fetch.
Compare with Probe →Complete Your AI Agent Stack
Other ai agent tools in our catalog:
1Password
Try FreeSecrets and credential manager
Keep API keys and .env secrets out of your repo
Consensus
Try FreeAI search across 200M research papers
Source real evidence behind your analysis
Gamma
Try FreeAI presentation builder
Turn ideas into polished decks instantly
💰 Affiliate disclosure: We may earn a commission if you sign up through these links at no extra cost to you.
Probe Plans & Pricing
Plan
* Pricing information is based on publicly available data and may not reflect current promotions, annual discounts, or regional pricing. Visit the official Probe website for the latest pricing.
Is Probe Free?
Probe is completely free to use. There are no hidden costs, no premium tiers, and no paywalls. Everything the tool offers is available at no charge, making it accessible to individuals, students, and organizations of all sizes.
Check Probe pricing at the source
The breakdown above is our summary of Probe's published pricing, not a quote. Plans, limits and what each tier includes change without notice — confirm on Probe's own pages before you buy.
Official Probe site ↗We do not represent Probe and these links are not paid placements.
Is Probe Worth It?
Probe is a free ai agent infrastructure tool that offers 6 key features including 44 checks in ~30 seconds with a 0-100 score, letter grade, and README badge, x402 payment discovery and validation, plus ERC-8004 onchain identity checks, MCP endpoint discovery, tool declarations, and transport security. Probe is a compliance scanner for AI agent APIs and MCP servers. You paste a URL and it runs forty-four checks in about thirty seconds, returning a 0-100 score, a letter grade, and a README badge, with no account required. The check set is unusually specific to the agent ecosystem rather than being a generic web scanner with AI branding. It covers the x402 agent payment standard by auto-discovering /.well-known/x402.json and validating payment metadata; MCP endpoint discovery, tool declarations, and transport security; Google's A2A protocol via agent.json discovery and skill declarations; ERC-8004 onchain agent identity registration on Base and Ethereum; and llms.txt and AI plugin discovery. Alongside those it runs conventional infrastructure checks — HSTS, CSP, X-Content-Type-Options, X-Frame-Options, Referrer-Policy, CORS, rate limiting, DNSSEC, CAA, DMARC and SPF, TLS, OpenAPI spec validation, API versioning, and Content-Type consistency — plus a regulatory cluster covering EU AI Act human oversight under Article 14, AI disclosure and risk classification, GDPR privacy and data-processing disclosure, FATF Travel Rule VASP disclosure, and ten voice-AI-specific checks for synthetic voice labeling, call recording consent, and operator identity. The grading is framed around listing readiness: A means listing-ready with minor fixes, C means the endpoint will fail x402 validation, D and F mean critical gaps. Subscribing adds up to 24 scans a day with email alerts. The vendor states the product is entirely free with no paid tier, funded by the compliance dataset it builds.
✅ Probe is a good choice if you need:
- •44 checks in ~30 seconds with a 0-100 score, letter grade, and README badge
- •x402 payment discovery and validation, plus ERC-8004 onchain identity checks
- •MCP endpoint discovery, tool declarations, and transport security
- •A2A agent.json discovery and skill declaration validation
- •EU AI Act Article 14 human oversight, GDPR, and FATF Travel Rule checks
💡 Value Assessment
With a free tier available, Probe is an easy recommendation for anyone looking to try ai agent infrastructure tools without financial commitment. The paid plans offer good value for power users who need the additional features and higher usage limits.
Probe Key Features
Probe comes packed with features that make it a strong contender in the ai agent infrastructure space. Here's what you get:
Available in the free plan with limits — 44 checks in ~30 seconds with a 0-100 score, letter grade, and README badge helps you work more efficiently with Probe.
Powered by advanced AI models, Probe delivers intelligent content generation capabilities.
Available in the free plan with limits — MCP endpoint discovery, tool declarations, and transport security helps you work more efficiently with Probe.
Available in the free plan with limits — A2A agent.json discovery and skill declaration validation helps you work more efficiently with Probe.
Powered by advanced AI models, Probe delivers intelligent content generation capabilities.
Powered by advanced AI models, Probe delivers intelligent content generation capabilities.
Probe Alternatives & Their Pricing
Considering alternatives to Probe? Here's how competing tools compare on pricing:
Blocks.ai
FreemiumPublish an agent to a network where apps and other agents can call it, with pay-per-call billing and a 15% revenue share
Pricing: There is no subscription. Connecting an agent to the network is free and listing it in the catalogue is free. Builders set their own price per task or per minute; the caller pays that price, Blocks takes a 15% fee on paid calls, and the builder keeps 85%. Stripe processes payments. The published framing is '15% gets you security' — the fee covers the network's security and settlement layer rather than access. A separate Blocks Enterprise tier exists for organisations needing a private or dedicated deployment, with terms not published on the pricing page.
Blaxel
FreemiumAgent infrastructure: millisecond microVM sandboxes, durable agent storage, and per-workload egress control
Pricing: A free tier is advertised ('get started for free, spin up your first sandbox in under a second'). The pricing page's tier table is rendered client-side and not readable from a plain fetch, so no per-unit rate is quoted here. Managed cloud, self-hosting, and VPC deployment are all offered.
Manufact
FreemiumCloud hosting, testing, and observability for MCP servers and ChatGPT/Claude apps, built on the mcp-use SDK
Pricing: Usage-based pricing that scales with you: every plan includes a monthly pool of credits, then pay-as-you-go once the pool is used. Per-credit rates are rendered client-side and not readable from a plain fetch.
Sentra
FreemiumCompany-wide memory graph over REST and MCP that your team and every AI agent read and write to
Pricing: Team plan for 2–20 people is $16 per user per month with 2,000 action credits per user per month, currently offered free as a launch special; it includes Slack, Gmail, Calendar, Outlook, GitHub and Linear integrations, unlimited meeting recording and history, AI meeting notes, pre-meeting briefs, risk radar and deep research. Enterprise for 20+ is custom-quoted and adds SSO/SAML, SOC 2, audit logs, API data access and fine-grained RBAC.
Laminar
FreemiumOpen-source agent observability where plain-English Signals catch failures you never instrumented
Pricing: Free is $0/month with 1 GB of data and no overage, $5 in Signals with no overage, 7-day retention, 1 project, 1 seat and community support. Starter is $30/month with 3 GB included then $2/GB, $15 in Signals then $0.5 per 1M input and $3 per 1M output tokens, 30-day retention, unlimited projects and seats and email support. Pro is $150/month with 10 GB included then $1.50/GB, $50 in Signals then $0.4 per 1M input and $2.5 per 1M output tokens, 6-month retention, unlimited projects and seats and Slack support. Enterprise is custom with on-premise deployment and dedicated support. SOC 2 Type II, HIPAA and server-side PII removal are listed on the paid tiers.
Is Probe your tool?
Claim this listing to get a Featured badge, correct the pricing on this page yourself, and stand out from the 5 alternatives listed above. All plans include a permanent dofollow backlink to your site.
Claim Now →Ready to try Probe?
Visit the official website for the latest pricing and to get started.
Frequently Asked Questions
Is Probe free to use?
Yes, Probe offers a free tier that you can use without paying. Paid plans starting at The vendor states Probe is 100% free with no paid plans and no limits, funded by the compliance dataset the scans generate. No account or credit card is required for an audit, and the 24x-daily monitoring with email alerts is included. unlock additional features and higher usage limits.
How much does Probe cost in 2026?
As of 2026, Probe pricing is: The vendor states Probe is 100% free with no paid plans and no limits, funded by the compliance dataset the scans generate. No account or credit card is required for an audit, and the 24x-daily monitoring with email alerts is included.. Pricing may vary based on billing cycle (monthly vs annual) and region. Visit the official Probe website for the most current pricing.
What is the cheapest Probe plan?
The cheapest option is the free tier. If you need premium features, the most affordable paid plan is Plan at The vendor states Probe is 100% free with no paid plans and no limits, funded by the compliance dataset the scans generate. No account or credit card is required for an audit, and the 24x-daily monitoring with email alerts is included..
What are the best alternatives to Probe?
Popular alternatives to Probe include Blocks.ai, Blaxel, Manufact. Each offers different features and pricing structures. Compare them on AISO Tools to find the best fit for your needs and budget.
Is Probe worth the price?
Probe is well-regarded in the agent-infrastructure space, offering features like 44 checks in ~30 seconds with a 0-100 score, letter grade, and README badge, x402 payment discovery and validation, plus ERC-8004 onchain identity checks, MCP endpoint discovery, tool declarations, and transport security. Whether it's worth the investment depends on your specific needs, usage volume, and budget. The free tier lets you try it before committing to a paid plan.
Learn More
📬 Get the best new AI tools delivered weekly
One concise email with fresh launches, trending picks, and featured standouts.