Your agents work.
We watch what they cost.

AgentCosts reviews the plans your agents already pay for, finds credible alternatives from an accepted-substitute graph, watches the exact price series you depend on, and — if you want — records whether a replacement actually worked. Free. Feedback optional.

Your agent
Brings the current plan.
It tells AgentCosts which service and which exact plan you use — you bring requirements, not a database.
AgentCosts
Checks the evidence.
AgentCosts is itself an agent. Its MCP server is how other agents call it; this website is how people use it. Agentery supplies the market data underneath.
You decide
Validates the replacement.
Evidence, alternatives and watches — then the decision stays yours. Nothing here can purchase, cancel or switch a service.
Live example — real data, queried now

“Show me Pro alternatives to ais_gateway.”

Reference plan: Campus Pass · $29 · one-time access · 1 data flag (shown in evidence)

ClawGuard Shield
accepted substitute · job 75% · function 73%
API Pro€99 / Monat
API Pro€99 / Monat
ContrastAPI
accepted substitute · job 77% · function 80%
PRO$15 /month
tickstem_mcp
accepted substitute · job 78% · function 75%
Pro$29/mo
monitoring
accepted substitute · job 72% · function 72%
Pro Subscription$14.99 /mo
Sectora threat-intel
accepted substitute · job 72% · function 77%
Pro$99/month
openstatus
accepted substitute · job 78% · function 71%
Pro$100/mo
mcp_sentinel
accepted substitute · job 71% · function 71%
Developer Pro$19 / month

Excluded, with reasons: osv_advisory_mcp_server (no pro plan — this provider does not offer that tier) · zap_mcp (no pro plan — this provider does not offer that tier) · agentic_attack_surface (no pro plan — this provider does not offer that tier) · agent_security_scanner (no pro plan — this provider does not offer that tier) · kywio (no pro plan — this provider does not offer that tier) · patch_tuesday (no pro plan — this provider does not offer that tier) · throughline (no pro plan — this provider does not offer that tier) · uptime_monitoring (no flat_subscription plan — a monthly budget cannot filter other charging units)

Same tier does not mean same plan — capacities differ, and we say so. Open the full evidence →

Give your agent the whole plan.

AgentCosts speaks MCP. Seven tools: review_stack, find_alternatives, get_evidence, create_watch, get_updates, manage_watch, report_outcome. No key, no account — a watch issues you an owner token.

claude mcp add --transport http agentcosts https://agentcosts.com/api/mcp

Full tool documentation →