Plasmate Pricing 2026

Open-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.

Open-source OpenAI-compatible gateway routing one API to 200+ models across 40+ providers

Pricing: Free is $0 forever with no credit card, giving access to all 200+ models across 40+ providers, 3 rate-limited free models, bring-your-own-keys, prompt caching, budgets and spend controls, auto-routing and vendor selection, and 30 days of activity-log retention. The platform fee is 5% on credit usage. Enterprise is custom-priced with a 30-day trial, full control plus BYOK, custom routing rules, custom free-model limits, unlimited log retention, team management, advanced analytics and admin controls. Data retention is metered separately: metadata is free, full payload storage is $0.01 per 1M tokens.

Apache-2.0 AI agent control plane — MCP firewall, model gateway, policy-as-code and human approvals

Pricing: The full control plane is free and Apache 2.0 licensed for self-hosting, including the MCP firewall, the AI model gateway with per-agent budgets, policy-as-code in YAML and CEL, human approvals on mobile, Slack, Mattermost and webhook, runtime session observability and audit trail, flow templates, the agent discovery CLI and community support. Teams is $29 per user per month, or $290 per user per year, for Preloop Cloud with hosted management, RBAC and team management, team-based approvals with quorum, CEL conditional approvals and escalation, AI-driven approval suggestions, advanced session optimisation, email support and a 14-day free trial. Enterprise is quoted on request and adds on-prem or private-VPC deployment, dedicated support with an SLA, custom integrations and policy reviews, AI Act readiness assistance and priority roadmap input; SSO, SAML and SCIM are listed as planned.

Open-source security gateway for AI agents — granular tool policies, approval chains and full audit logs

Pricing: Free plan: up to 5 integrations, 10,000 tool calls/month, approval policies, audit logs and MCP plus CLI access. Plus is $12/month with unlimited integrations, 100,000 tool calls/month ($1 per additional 5,000), a custom integration builder, advanced policy management and priority support. Enterprise is custom-priced, adding teams and profiles, team-level policy management, integration with internal services, a self-hostable enterprise version and SSO/SAML. The open-source core can also be self-hosted for free on your own infrastructure.

An open-source MCP browser server exposing do(), get() and check() instead of raw primitives — 98.5% on WebVoyager with Claude Code, benchmark published

Pricing: Free and open source; the project publishes its full WebVoyager benchmark results, session transcripts, screenshots, evaluator responses and a reproduction fork rather than only a score. No paid tier is published on the site. Distribution is via GitHub with community support on Discord and Slack; model costs are billed by whichever provider drives the agent.