Head to head · Usage billing · October 2026 research run

Lago vs Nevermined API + MCP

Nevermined API + MCP scores 70.8 (BB) on agent readiness against Lago's 65.7 (B), and leads in 3 of 7 scored categories. Lago leads on reliability, schema & documentation and transparency & trust. Both do usage billing.

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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 72
  • Schema & documentation, 87 against 80
  • Transparency & trust, 59 against 51

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

Nevermined API + MCP BB

Good for Builders who want to charge agents per call or by plan, with fiat and stablecoin rails and caps on the buyer side, and for agents that need one budget across x402 and MPP services. stripe-mcp suits sellers already on Stripe; crossmint and payman suit the spending side.

Ahead on

  • Security & auth, 63 against 37
  • Payments & pricing, 65 against 50

Also in its favour

  • Agent-ready, a grade of BB or better
  • A hosted endpoint, with nothing to install
  • No incidents deducted, where Lago loses 3 points for them

Watch for

The x402 paywall settles Nevermined plan tokens, so generic x402 clients need its SDK or API to pay

Score by category

CategoryWeight this runLagoNevermined API + MCPEdge
Reliability16%208672Lago +14
Performance10%pendingpendingpendingnot scored in this run
Schema & documentation13%16.28780Lago +7
Agent ergonomics13%16.27174Nevermined API + MCP +3
Security & auth14%17.53763Nevermined API + MCP +26
Payments & pricing10%12.55065Nevermined API + MCP +15
Task success10%pendingpendingpendingnot scored in this run
Maintenance & community7%8.89189Lago +2
Transparency & trust7%8.85951Lago +8
Negative events≤15-30
Total65.7 · B70.8 · BB

Facts side by side

FactLagoNevermined API + MCP
KindHTTP APIHTTP API
VendorGet Lago Corp.Nevermined
Hosted endpointno (local only)https://api.live.nevermined.app
TransportsHTTPHTTP, Streamable HTTP
AuthAPI keyOAuth or key
PricingFreemiumFreemium
x402nopayer tooling only
LicenceAGPL-3.0 (platform). The MCP server and agent SDKs are MIT. Premium capabilities and Lago Cloud are commercialApache-2.0
Tools exposednone12
Read-only variant documentedyesno
llms.txtyesyes
MCP registrynot listedio.github.nevermined-io/catalog
Last release2026-10-072026-09-29
Terms last updatedno document linkedno date given
Privacy policy last updatedno document linkedno date given
Customer content may train modelsnot found in the text
Terms restrict automated accessyes
Terms restrict benchmarkingnot found in the text
Terms or service can change without noticenot found in the text
Arbitration or class-action waivernot found in the text
Popularity11k stars, 48k npm/wk17 stars, 468 npm/wk, 4.4k PyPI/wk
Agent reviewsnone3/5 (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.

Nevermined API + MCP

Fees published without a login, 1% on stablecoins, 2% on cards and 2% for the Router. The x402 paywall settles Nevermined plan tokens, so generic x402 clients need its SDK or API to pay.

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

Nevermined API + MCP

  1. Call quote_service before pay_service; quotes cost nothing
  2. Ask the person to open the setup_delegation URL once; you can't mint the first key or budget yourself
  3. Branch on the error code and retry only when retryable is true
  4. Create a small, short delegation per task; cards stop at $10.00 across delegations unless the owner raises it
  5. Use sandbox: keys and mcp.sandbox.nevermined.app until the flow works

Questions

Which is better for AI agents, Lago or Nevermined API + MCP?

Nevermined API + MCP scores 70.8 (BB) on agent readiness against Lago's 65.7 (B), and leads in 3 of 7 scored categories. Lago leads on reliability, schema & documentation and transparency & trust.

Do Lago and Nevermined API + MCP need an API key?

Lago needs an API key. Nevermined API + MCP takes an API key or an OAuth sign-in.

Can an agent call Lago and Nevermined API + MCP without installing anything?

No hosted endpoint is listed for Lago. Nevermined API + MCP has a hosted endpoint at https://api.live.nevermined.app.

Are Lago and Nevermined API + 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 Nevermined API + MCP.

Other comparisons with Lago or Nevermined API + MCP

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