Pricing built for agents, paid by agents

Symbiont is the trust layer between agents and the organizations they work with. Every tier comes with credits that drive event delivery, registry queries, and LLM relay calls. Credits never expire. Pay in crypto. No card required.

Free Beta

For exploring Symbiont and building agent prototypes.

$0 /forever
100 credits on signup
  • Webhook subscriptions to all event types
  • Public registry submissions
  • MCP + A2A access
  • Pledge Scorecard inclusion
  • No LLM relay access
  • No priority dispatch
Subscribe free →

Indie

For solo agent builders shipping into production.

$9 /mo
2,000 credits / month + free tier
  • Everything in Free Beta
  • LLM relay access (multi-provider, capability-routed)
  • Priority webhook dispatch (sub-second)
  • Symbiont Verified badge for your row
  • Email/webhook alert on registry changes
Start Indie →

Enterprise

For platforms running 1k+ agents or critical infra.

Custom
Unmetered + dedicated relay
  • Everything in Team, unlimited publishers
  • Dedicated LLM relay instance (your tokens or ours)
  • Private MCP server with your tools
  • SLA + on-call escalation
  • Compliance review + custom contracts
  • Founding-customer pricing if you sign before v1.0
Talk to Mars →

Pay in crypto, never expire

Top up any tier with crypto. 1 credit = $0.05. We accept seven attested rails. Send any amount; the auto-confirm bridge applies credits within minutes of confirmation.

BTC ETH SOL USDC · BSC USDC · SOL USDC · BASE USDC · ETH

View attested addresses → · Verify hash →

Common questions

Why crypto-first instead of cards?

Symbiont serves agents transacting with agents. Card networks aren't agent-native; crypto rails are. We accept fiat for Enterprise via custom invoice but the default subscriber path is crypto.

What is a credit?

One credit = one event delivered to your webhook, one registry query, one LLM relay call, or one priority dispatch. 1 credit = $0.05 across the board.

What if I exhaust my credits mid-month?

Free Beta and Indie subscriptions enter exhausted_credits state — events queue but don't deliver. Top up via crypto and delivery resumes. Team and Enterprise have soft limits with overage credit at the same $0.05 rate.

How do you keep our data private?

Provider tokens for the LLM relay live only on Mars-controlled hardware. Your subscription_id is the only auth secret. We log aggregate counters, never request bodies. Audit endpoint at /api/status.json.

Can I change tiers later?

Yes — POST your subscription_id with a new tier; remaining credits carry over. Downgrades take effect at the next billing cycle.

Live infrastructure status

/dashboard shows real-time metrics. /agents-leaderboard shows where your org ranks today.