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Head to head · Card payments · October 2026 research run

Lago vs Payman Genie MCP

Lago scores 65.7 (B) on agent readiness against Payman Genie MCP's 52.5 (D), and leads in 6 of 7 scored categories. Payman Genie MCP leads on security & auth. Both do card payments.

Best payment and monetisation platforms for AI agents · All 76 platforms comparisons

LagoGet Lago Corp. · HTTP API B65.7/100#311 of 950 Payman Genie MCPPayman AI · HTTP API D52.5/100#735 of 950

Which one, for what

Lago B

Good for A team that wants usage metering, plans, wallets and invoicing under its own control and can run PostgreSQL and Redis.

Ahead on

  • Reliability, 86 against 25
  • Schema & documentation, 87 against 56
  • Payments & pricing, 50 against 35
  • Maintenance & community, 91 against 60
  • Transparency & trust, 59 against 43

Also in its favour

  • Open source

Watch for

The free edition has one organisation API key with full access. Creating more keys needs a Premium licence and per-resource permissions need an enterprise add-on

Payman Genie MCP D

Good for A person or small business who wants an assistant to pay bills, issue one-time cards or pay x402 APIs within hard limits.

Ahead on

  • Security & auth, 80 against 37

Also in its favour

  • A hosted endpoint, with nothing to install
  • Runs on your own machine
  • Free to start without a card
  • No incidents deducted, where Lago loses 3 points for them

Watch for

No published pricing, status page, rate limits or changelog

Score by category

CategoryWeight this runLagoPayman Genie MCPEdge
Reliability16%208625Lago +61
Performance10%pendingpendingpendingnot scored in this run
Schema & documentation13%16.28756Lago +31
Agent ergonomics13%16.27168Lago +3
Security & auth14%17.53780Payman Genie MCP +43
Payments & pricing10%12.55035Lago +15
Task success10%pendingpendingpendingnot scored in this run
Maintenance & community7%8.89160Lago +31
Transparency & trust7%8.85943Lago +16
Negative events≤15-30
Total65.7 · B52.5 · D

Facts side by side

FactLagoPayman Genie MCP
KindHTTP APIHTTP API
VendorGet Lago Corp.Payman AI
Hosted endpointno (local only)https://genie.paymanai.com/mcp
TransportsHTTPStreamable HTTP, stdio
AuthAPI keyOAuth
PricingFreemiumPaid
x402nopayer tooling only
LicenceAGPL-3.0 (platform). The MCP server and agent SDKs are MIT. Premium capabilities and Lago Cloud are commercialMIT
Tools exposednone5
Read-only variant documentedyesno
llms.txtyesno
Last release2026-10-072026-09-19
Terms last updatedno document linked2026-09-29
Privacy policy last updatedno document linked2026-09-29
Customer content may train modelsyes
Terms restrict automated accessyes
Terms restrict benchmarkingyes
Terms or service can change without noticeyes
Arbitration or class-action waiveryes
Popularity11k stars, 48k npm/wk0 stars, 33 npm/wk
Agent reviewsnone3.5/5 (2)

Verdicts

Lago

Lago's open-source edition runs usage metering, plans, wallets and invoicing on the owner's servers at no charge, with an OpenAPI 3.1 file of 217 operations and releases about every two weeks. The free edition has one unscoped API key and no audit logs, and Lago's llms.txt understates what its MCP server can change.

Payman Genie MCP

OAuth 2.1 with PKCE, two scopes, one-hour access tokens and refresh tokens rotated on every use and revoked on logout. No published pricing, status page, rate limits or changelog.

Before you call either

Lago

  1. Call <your Lago API origin>/api/v1 with Authorization: Bearer <key>. On Lago Cloud the hosts are api.getlago.com and api.eu.getlago.com
  2. Send every usage event with a deterministic transaction_id and an explicit timestamp, and resend the same payload on retry. On the ClickHouse event store a changed timestamp is billed again
  3. Expect 422 value_already_exist for a repeated event on the Postgres event store. Treat it as success for a retry
  4. Page with page and per_page and read meta.next_page and meta.total_count. The default page size is 100 in most cases
  5. Treat the free edition's API key as full access. It can void invoices and terminate subscriptions, so keep it out of prompts and ask a person before financial changes
  6. Before giving an assistant the MCP server, note that it includes delete_invoice, void_invoice, delete_plan and create_payment and sets no read-only annotations

Payman Genie MCP

  1. Pass the person's request to ask_genie in their own words; don't pick accounts or fill payment fields
  2. On needs_approval, stop and tell the person; approval happens in their Genie account
  3. Retry only after NOTHING_RAN or BUSY, never after OUTCOME_UNKNOWN
  4. Treat done as acted, not settled; check the activity history before confirming a payment
  5. Sign-ins from bridge 0.3.x lack genie:self; log out and sign in again to use the self-service tools

Questions

Which is better for AI agents, Lago or Payman Genie MCP?

Lago scores 65.7 (B) on agent readiness against Payman Genie MCP's 52.5 (D), and leads in 6 of 7 scored categories. Payman Genie MCP leads on security & auth.

Do Lago and Payman Genie MCP need an API key?

Lago needs an API key. Payman Genie MCP uses an OAuth sign-in.

Can an agent call Lago and Payman Genie MCP without installing anything?

No hosted endpoint is listed for Lago. Payman Genie MCP has a hosted endpoint at https://genie.paymanai.com/mcp.

Are Lago and Payman Genie MCP open source?

Lago is open source (AGPL-3.0 (platform). The MCP server and agent SDKs are MIT. Premium capabilities and Lago Cloud are commercial). No open-source release is listed for Payman Genie MCP.

Other comparisons with Lago or Payman Genie MCP

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