# Antseed vs Meta Model API

> Antseed scores 55.1 (C) to Meta Model's 52.2 (D) for llm inference. Prices, MCP, x402, uptime and agent notes side by side.

- Canonical: https://www.anchorterminal.com/compare/antseed-vs-meta-model-api
- Markdown: https://www.anchorterminal.com/compare/antseed-vs-meta-model-api.md (~2,900 tokens)
- Slim: https://www.anchorterminal.com/compare/antseed-vs-meta-model-api.min.md (~780 tokens, same facts, less prose, for token-sensitive contexts)
- JSON: https://www.anchorterminal.com/compare/antseed-vs-meta-model-api.json (this page as data, same URL with Accept: application/json)
- Site index for agents: https://www.anchorterminal.com/llms.txt (full text: https://www.anchorterminal.com/llms-full.txt)
- API: https://www.anchorterminal.com/api/v1/index.json
- Updated: 2026-10-12

Antseed scores 55.1 (C) on agent readiness against Meta Model API's 52.2 (D), and leads in 4 of 7 scored categories. Meta Model API leads on schema & documentation, agent ergonomics and security & auth. Both do llm inference.

- Antseed: grade C, 55.1/100, rank #685 of 993. Markdown https://www.anchorterminal.com/tools/antseed.md · JSON https://www.anchorterminal.com/api/v1/tools/antseed.json
- Meta Model API: grade D, 52.2/100, rank #757 of 993. Markdown https://www.anchorterminal.com/tools/meta-model-api.md · JSON https://www.anchorterminal.com/api/v1/tools/meta-model-api.json
- Best model APIs and inference for AI agents: https://www.anchorterminal.com/best/inference/index.md
- All 171 models comparisons: https://www.anchorterminal.com/compare/inference/index.md

## Which one, for what

### Antseed (C)

Good 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 40
- Payments & pricing, 70 against 20
- Maintenance & community, 79 against 46
- Transparency & trust, 59 against 52

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

### Meta Model API (D)

Good for: Long-running agent and coding work over text, images, video, audio and PDFs with a 1M-token context, where training must stay off by default.

Ahead on:
- Schema & documentation, 60 against 55
- Agent ergonomics, 75 against 56
- Security & auth, 64 against 45

Also in its favour:
- A hosted endpoint, with nothing to install
- No incidents deducted, where Antseed loses 4 points for them

Watch for: Muse Wonder is labelled a preview, and no deprecation policy or notice period was found


## Score by category

| Category | Weight | Antseed | Meta Model API | Edge |
| --- | --- | --- | --- | --- |
| Reliability | 16% (20 this run) | 62 | 40 | Antseed +22 |
| Performance | 10%, pending | pending | pending | not scored in this run |
| Schema & documentation | 13% (16.2 this run) | 55 | 60 | Meta Model API +5 |
| Agent ergonomics | 13% (16.2 this run) | 56 | 75 | Meta Model API +19 |
| Security & auth | 14% (17.5 this run) | 45 | 64 | Meta Model API +19 |
| Payments & pricing | 10% (12.5 this run) | 70 | 20 | Antseed +50 |
| Task success | 10%, pending | pending | pending | not scored in this run |
| Maintenance & community | 7% (8.8 this run) | 79 | 46 | Antseed +33 |
| Transparency & trust | 7% (8.8 this run) | 59 | 52 | Antseed +7 |
| Negative events | ≤15 | -4 | 0 | |
| **Total** | | **55.1 · C** | **52.2 · D** | |

## Facts side by side

| Fact | Antseed | Meta Model API |
| --- | --- | --- |
| Kind | Model router | Model API |
| Vendor | Antseed Foundation | Meta |
| Hosted endpoint | no (local only) | `https://api.meta.ai/v1` |
| Transports | HTTP | HTTP |
| Auth | None | API key |
| Pricing | Pay per use | Pay per use |
| x402 | no | no |
| Licence | GPL-3.0 (LICENSE in the repository). The @antseed/cli manifest on npm carries no licence field | Closed service under the Meta Model API Terms of Service (last updated 9 October 2026), with Meta Platforms, Inc., or Meta Platforms Ireland Limited in the European Region, as the contracting party. |
| Read-only variant documented | no | no |
| llms.txt | yes | yes |
| Last release | 2026-10-08 | 2026-10-12 |
| Terms last updated | 2026-05-15 |  |
| Privacy policy last updated | no document linked | couldn't be read |
| Customer content may train models | not found in the text |  |
| Terms restrict automated access | not found in the text |  |
| Terms restrict benchmarking | not found in the text |  |
| Terms or service can change without notice | not found in the text |  |
| Arbitration or class-action waiver | not found in the text |  |
| Popularity | 106 stars, 1.8k npm/wk | none |

## 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.

**Meta Model API.** Meta Model API serves Muse Wonder, in preview since 12 October 2026, and Muse Spark with 1M-token context, constrained JSON Schema output, automatic prompt caching and per-token prices published without a login. Standard-mode content is not used for training. There's no free allowance, status history, OpenAPI file, deprecation policy or way to force a tool call.

## 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

### Meta Model API

1. Use `muse-wonder-1.0` for long multi-step work and `muse-spark-1.3` for cheaper, high-volume calls. Both take the same requests
2. Keep personal or confidential data away from `-contributor` model IDs. Meta may train on that content
3. Honour Retry-After on 429 and 503, which is 60 seconds for `service_overloaded`, and check `GET https://api.meta.ai/v1/status`, which needs no key
4. Pass the key to the OpenAI SDK explicitly or set `OPENAI_API_KEY`. The SDK doesn't read `MODEL_API_KEY`
5. Leave `tool_choice` at `auto`. The docs say `none` and `required` are not supported

## Questions

### Which is better for AI agents, Antseed or Meta Model API?

Antseed scores 55.1 (C) on agent readiness against Meta Model API's 52.2 (D), and leads in 4 of 7 scored categories. Meta Model API leads on schema & documentation, agent ergonomics and security & auth.

### Do Antseed and Meta Model API need an API key?

Antseed needs no key. Meta Model API needs an API key.

### Can an agent call Antseed and Meta Model API without installing anything?

No hosted endpoint is listed for Antseed. Meta Model API has a hosted endpoint at https://api.meta.ai/v1.

### Are Antseed and Meta Model API 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 Meta Model API.


## For agents

- This comparison as JSON: https://www.anchorterminal.com/compare/antseed-vs-meta-model-api.json, and with the fewest tokens: https://www.anchorterminal.com/compare/antseed-vs-meta-model-api.min.md
- Over MCP at https://www.anchorterminal.com/mcp (no key): `compare_tools {"a": "antseed", "b": "meta-model-api"}`. From a terminal: `anchor compare antseed meta-model-api`
- Each listing in full: https://www.anchorterminal.com/api/v1/tools/antseed.json and https://www.anchorterminal.com/api/v1/tools/meta-model-api.json

## Other comparisons with Antseed or Meta Model API

- [Claude API vs Antseed](https://www.anchorterminal.com/compare/anthropic-api-vs-antseed.md)
- [Claude API vs Meta Model API](https://www.anchorterminal.com/compare/anthropic-api-vs-meta-model-api.md)
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- [Gemini Developer API vs Meta Model API](https://www.anchorterminal.com/compare/gemini-api-vs-meta-model-api.md)
- [GroqCloud vs Meta Model API](https://www.anchorterminal.com/compare/groq-vs-meta-model-api.md)
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- [Meta Model API vs Novita AI](https://www.anchorterminal.com/compare/meta-model-api-vs-novita-ai.md)
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