a substack essay on agentic payments said that invisible purchasing is coming: agents inside your banking app will negotiate bills and roll subscriptions without asking you. the missing piece is an "agent fico" — a way to price and govern agent reputation and risk.
i've been calling it agent fico inside mnemopay for six months.
why reputation matters for invisible purchasing
if an agent can negotiate your electric bill or cancel a subscription without asking, you need confidence that:
- the agent won't overspend or agree to predatory terms
- the agent has a track record you can verify
- if something goes wrong, you have an audit trail to dispute the charge
right now, every agent integration is a fresh trust fall. you either lock the agent down to the point of uselessness, or you give it carte blanche and hope nothing breaks.
what agent fico tracks
mnemopay's agent fico module scores each agent based on:
- success rate: how many payments completed without disputes or chargebacks (we track 672+ transactions per agent in production)
- compliance: did the agent stay within spending limits and approval rules?
- dispute history: how often has this agent's behavior been flagged by humans or auditors?
- cross-environment reputation: the score is portable — it travels with the agent when it moves between apps or MCP servers
how it governs risk
when an agent tries to make a payment, mnemopay checks its fico score and adjusts limits dynamically:
- a new agent with no history gets a $10 daily cap
- an agent with 400 clean transactions gets a $500 cap
- an agent with 3 disputes in the last 30 days gets throttled or blocked
this lets you enable invisible purchasing without giving every agent unlimited authority.
portability
the score is signed and portable. if your agent moves from your banking app to a partner's bill negotiation service, its reputation follows. the partner doesn't have to re-learn the agent's risk profile from scratch.
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