Head to head · Model routing · October 2026 research run

Antseed vs RouterPlus

Antseed scores 55.1 (C) on agent readiness against RouterPlus's 51.2 (D), and leads in 4 of 7 scored categories. RouterPlus leads on agent ergonomics and security & auth. Both do model routing.

Best model APIs and inference for AI agents · All 190 models comparisons

Which one, for what

Antseed C

Best for Agents and coding tools that want pay-per-request inference with no account, and owners comfortable holding USDC on Base.

Ahead on

  • Reliability, 62 against 45
  • Payments & pricing, 70 against 40
  • Maintenance & community, 79 against 44
  • Transparency & trust, 59 against 38

Also in its favour

  • No key needed to call it
  • Free to start without a card
  • Open source

Watch for

The buyer proxy copies a client's Authorization and x-api-key headers to the seller. The repository's March 2026 review flagged it and issue #1104 is open

RouterPlus D

Best for Teams that call Claude and GPT models from one key and want the cost of every call in the response, with their own provider keys where they have them.

Ahead on

  • Agent ergonomics, 71 against 56
  • Security & auth, 62 against 45

Also in its favour

  • A hosted endpoint, with nothing to install

Watch for

No terms of service, privacy policy, status page, changelog or security.txt found for the gateway

Score by category

CategoryWeight this runAntseedRouterPlusEdge
Reliability16%206245Antseed +17
Performance10%pendingpendingpendingnot scored in this run
Schema & documentation13%16.25559RouterPlus +4
Agent ergonomics13%16.25671RouterPlus +15
Security & auth14%17.54562RouterPlus +17
Payments & pricing10%12.57040Antseed +30
Task success10%pendingpendingpendingnot scored in this run
Maintenance & community7%8.87944Antseed +35
Transparency & trust7%8.85938Antseed +21
Negative events≤15-4-2
TotalC 55.1/100D 51.2/100

Facts side by side

FactAntseedRouterPlus
KindModel routerModel router
VendorAntseed FoundationRouterPlus
Hosted endpointno (local only)https://api.routerplus.com/v1
TransportsHTTPHTTP
AuthNoneAPI key
PricingPay per usePay per use
x402nono
LicenceGPL-3.0 (LICENSE in the repository). The @antseed/cli manifest on npm carries no licence fieldClosed service. No terms of service for the gateway were found on routerplus.com or app.routerplus.com on 13 October 2026. The only terms on the site govern the capacity request form and name EVO HQ Inc, a Delaware corporation (https://routerplus.com/capacity/terms/).
Read-only variant documentednono
llms.txtyesyes
Last release2026-10-08none
Terms last updated2026-05-15no document linked
Privacy policy last updatedno document linkedno document linked
Customer content may train modelsnot found in the text
Terms restrict automated accessnot found in the text
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
Popularity106 stars, 1.8k npm/wknone

Verdicts

Antseed

A buyer needs no account. The CLI creates a wallet key, free models answer at once and paid ones draw on deposited USDC, with seller, tokens and cost returned in response headers. Sellers are unvetted and can read prompts unless TEE-verified, the proxy forwards a client's own credential headers to them, and every package is pre-1.0.

RouterPlus

The docs are written for agents, every model price is public, and each response carries its own cost. No terms of service, privacy policy, status page or changelog were found. Signup adds no free credit, and the chat catalogue is Claude and GPT only.

Before you call either

Antseed

  1. Send a placeholder key such as antseed-p2p. The proxy forwards whatever Authorization or x-api-key header the client sends to the seller
  2. Call GET /v1/models first and request a concrete id. The antseed alias works only when the desktop app has a model selected
  3. Handle 402 insufficient_deposits by reading suggestedAmount, then fund the address from antseed buyer deposit with USDC on Base
  4. Pass --verifiers antseed-verifier --require-verifier to antseed buyer start when prompts are private, so only TEE-verified sellers are routed
  5. Read x-antseed-peer-id and x-antseed-estimated-cost-usd on each response, and pin a seller with <peerId>@<model> when the same one must answer

RouterPlus

  1. Send max_tokens on every request. Without it the balance hold assumes up to 32,768 output tokens and can return insufficient_quota on a small balance
  2. Switch on error_type. Retry rate_limit after retry-after, and stop on insufficient_quota, which needs a person to add credit or raise a cap
  3. Don't add a retry loop on top of the SDK's. There is no idempotency key, so a retry that reaches a provider is billed again
  4. Copy model ids from GET /v1/models or /api/models.json. An unknown id is a 404 and the gateway never substitutes one
  5. Use /v1/messages for Claude when you need thinking or server tools, and /v1/chat/completions with response_format only for GPT ids

Questions

Which is better for AI agents, Antseed or RouterPlus?

Antseed scores 55.1 (C) on agent readiness against RouterPlus's 51.2 (D), and leads in 4 of 7 scored categories. RouterPlus leads on agent ergonomics and security & auth.

Do Antseed and RouterPlus need an API key?

Antseed needs no key. RouterPlus needs an API key.

Can an agent call Antseed and RouterPlus without installing anything?

No hosted endpoint is listed for Antseed. RouterPlus has a hosted endpoint at https://api.routerplus.com/v1.

Are Antseed and RouterPlus open source?

Antseed is open source (GPL-3.0 (LICENSE in the repository). The @antseed/cli manifest on npm carries no licence field). No open-source release is listed for RouterPlus.

Other comparisons with Antseed or RouterPlus

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