MnemoPay — Trust OS for AI agents that handle money
Agent Mission Control · v1.8.1 · Apache 2.0

Trust OS for AI agents
that handle money.

MnemoPay gives agents identity, memory, browser and tool access, payment rails, budgets, permissions, and signed audit trails — before they act in the real world.

Claude Haiku 4.5 · live
>
01
300–850
Agent Credit Score
02
14 modules
credit · memory · rails · identity
03
672 tests
Merkle-verified · 200K stress
04
$0.002
Lightning minimum charge
Native agent primitives

More than a payment SDK.
The control plane your agent runs inside.

Six primitives, one runtime, one signed audit chain. Every action passes through them in order — no exceptions, no escape hatch.

Identity

Ed25519 from first call.

Every agent gets a keypair. Every action is signed. Every receipt is independently verifiable. Canary honeypots flag impersonation in real time.

Memory

A context that can't be rewritten.

Every fact the agent stores is Merkle-chained. Tampering leaves a cryptographic trace. Decay policies, recall ranking, PII redaction, all built in.

Payment rails

Six rails. One identity.

Stripe, Paystack, Lightning — plus Stripe MPP, x402 (USDC on Base), and Google AP2, all stable in v1.6.0. Same agent, same score, same audit chain across every rail.

Native toolkit

Browser, voice, vision, scrape.

Capability layer the agent uses to do things — runtime, browser via CDP, computer-control, vision, voice, scrape, knowledge. Charter-bound, FiscalGate-aware, audit-logged.

FiscalGate

Enforced budgets, every action.

Reserve the budget on charter start. Every priced action routes through hold → settle. Over-budget halts. Errors release. Agents never spend what they didn't declare.

Audit bundles

EU AI Act Article 12, by default.

Merkle-rooted, signed. Every tool call, payment, memory write, refusal. Mission · events · CSV · chain · manifest with checksums. Export-ready for any regulator.

Charter-driven FiscalGate-enforced Merkle-chained Apache 2.0 Article 12-ready
How it works

“Mission → authority check → tools → proof.”

Every agent action,
turned into a readable sequence.

The same six steps run for every priced action your agent takes — deterministic, replayable, and signed end-to-end.

Step 01
Mission

A goal arrives — from a user, a queue, an upstream agent. The runtime accepts it and instantiates a session.

Step 02
Charter

YAML / JSON declares the rules: goal, budget cap, allowed tools, allowed counterparties, approval thresholds, retention.

Step 03
FiscalGate

The budget is reserved on charter start. Every priced action hits hold → settle. Over-budget halts. Errors release.

Step 04
Rail

Cheapest viable rail is selected automatically — Stripe, Paystack, Lightning, MPP, x402, AP2 — against the agent's score.

Step 05
Receipt

Ed25519-signed receipt is produced and chained into the agent's Merkle log. The counterparty can verify independently.

Step 06
Audit

Article 12 bundle is appendable on demand: mission · events · CSV · chain · manifest with checksums. Regulator-shaped.

Determinism

Every run is replayable. Same charter, same inputs, same chain root.

Trust boundary

No tool call escapes Charter + FiscalGate. The runtime refuses what the charter doesn't allow.

Cross-rail

One identity, one score, one chain — across every rail the agent ever touches.

— The thesis —

Stripe moves money.
MnemoPay governs how money, agents, and business workflows move across rails.

Multi-rail · compliance-aware · audit-bound by default.
Pricing · Apache 2.0

Free for builders.
Priced for production.

The SDK is Apache-licensed and free forever. You pay when you plug in to managed rails, hosted score storage, or enterprise SLAs. Lightning settles at network fee — we take nothing on top.

Free · self-hosted
$0
forever
All 14 modules. Your infrastructure.
  • Full SDK · TypeScript & Python
  • Charter, FiscalGate, Article 12 export
  • Agent Credit Score & Merkle ledger
  • Memory · identity · fraud detection
  • Community support · GitHub issues
  • Bring your own rails credentials
npm install @mnemopay/sdk
Growth · scale
new
$200
/ month
Higher limits · Lightning rail · multi-key fanout.
  • Everything in Pro
  • 10× rate limits, multi-key fanout
  • Lightning rail (sub-cent settlement)
  • Elevated governance API quotas
  • Priority support · 8h response
Start Growth · $200/mo
Enterprise · SLA
Custom
Dedicated infra · custom rails · contracted SLA.
  • Everything in Growth
  • Dedicated ledger shard
  • Custom rail integration
  • GridStamp seat included
  • Negotiated SLA · DPA · onboarding
Contact sales
Need a custom MnemoPay pilot or volume above these tiers? jeremiah@getbizsuite.com · See full pricing & GridStamp pilots.
Start building

Agents can act.
MnemoPay makes them accountable.

Give every agent identity, memory, budgets, tool access, and signed evidence — in two lines of code. One SDK. Apache 2.0.

npm install @mnemopay/sdk · pip install mnemopay