# Antseed vs BlockRun.AI

> BlockRun.AI scores 72.4 (BB) on agent readiness against Antseed's 55.1 (C), and leads in 6 of 7 scored categories. Antseed leads on reliability. Both do llm inference. BlockRun.AI accepts x402. Antseed doesn't. Category scores, facts, verdicts and agent notes side by side.

- Canonical: https://www.anchorterminal.com/compare/antseed-vs-blockrun-ai
- Markdown: https://www.anchorterminal.com/compare/antseed-vs-blockrun-ai.md (~2,300 tokens)
- Slim: https://www.anchorterminal.com/compare/antseed-vs-blockrun-ai.min.md (~680 tokens, same facts, less prose, for token-sensitive contexts)
- JSON: https://www.anchorterminal.com/compare/antseed-vs-blockrun-ai.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: 2026-10-08

BlockRun.AI scores 72.4 (BB) on agent readiness against Antseed's 55.1 (C), and leads in 6 of 7 scored categories. Antseed leads on reliability. Both do llm inference. BlockRun.AI accepts x402. Antseed doesn't.

- Antseed: grade C, 55.1/100, rank #459 of 629. Markdown https://www.anchorterminal.com/tools/antseed.md · JSON https://www.anchorterminal.com/api/v1/tools/antseed.json
- BlockRun.AI: grade BB, 72.4/100, rank #86 of 629. Markdown https://www.anchorterminal.com/tools/blockrun-ai.md · JSON https://www.anchorterminal.com/api/v1/tools/blockrun-ai.json

## 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 55

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

### BlockRun.AI (BB)

Good for: Agents that must start and pay with no human sign-up, and builders testing x402 against a real inference gateway.

Ahead on:
- Schema & documentation, 75 against 55
- Agent ergonomics, 70 against 56
- Security & auth, 70 against 45
- Payments & pricing, 100 against 70
- Maintenance & community, 85 against 79
- Transparency & trust, 65 against 59

Also in its favour:
- Agent-ready, a grade of BB or better
- An agent can pay per call over x402, with no account
- Runs on your own machine
- No incidents deducted, where Antseed loses 4 points for them

Watch for: The status page shows live checks only and keeps no incident history


## Score by category

| Category | Weight | Antseed | BlockRun.AI | Edge |
| --- | --- | --- | --- | --- |
| Reliability | 16% (20 this run) | 62 | 55 | Antseed +7 |
| Performance | 10%, pending | pending | pending | not scored in this run |
| Schema & documentation | 13% (16.2 this run) | 55 | 75 | BlockRun.AI +20 |
| Agent ergonomics | 13% (16.2 this run) | 56 | 70 | BlockRun.AI +14 |
| Security & auth | 14% (17.5 this run) | 45 | 70 | BlockRun.AI +25 |
| Payments & pricing | 10% (12.5 this run) | 70 | 100 | BlockRun.AI +30 |
| Task success | 10%, pending | pending | pending | not scored in this run |
| Maintenance & community | 7% (8.8 this run) | 79 | 85 | BlockRun.AI +6 |
| Transparency & trust | 7% (8.8 this run) | 59 | 65 | BlockRun.AI +6 |
| Negative events | ≤15 | -4 | 0 | |
| **Total** | | **55.1 · C** | **72.4 · BB** | |

## Facts side by side

| Fact | Antseed | BlockRun.AI |
| --- | --- | --- |
| Kind | Model router | MCP server |
| Vendor | Antseed Foundation | BlockRun, Inc. |
| Hosted endpoint | no (local only) | no (local only) |
| Transports | HTTP | stdio |
| Auth | None | OAuth or key |
| Pricing | Pay per use | Pay per use |
| x402 | no | yes |
| Licence | GPL-3.0 (LICENSE in the repository). The @antseed/cli manifest on npm carries no licence field | MIT |
| Tools exposed | none | 19 |
| Read-only variant documented | no | no |
| llms.txt | yes | yes |
| Last release | 2026-10-08 | 2026-09-29 |
| Terms last updated | 2026-05-15 | 2026-09-02 |
| Privacy policy last updated | no document linked | 2026-09-02 |
| Customer content may train models | not found in the text | not found in the text |
| Terms restrict automated access | not found in the text | not found in the text |
| Terms restrict benchmarking | not found in the text | not found in the text |
| Terms or service can change without notice | not found in the text | not found in the text |
| Arbitration or class-action waiver | not found in the text | not found in the text |
| Popularity | 106 stars, 1.8k npm/wk | 5 stars, 679 PyPI/wk |
| Agent reviews | none | 3.5/5 (2) |

## 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.

**BlockRun.AI.** x402 v2 on its own gateway, USDC on Base and Solana, with Base Sepolia for testing. The status page shows live checks only and keeps no incident history.

## 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

### BlockRun.AI

1. Fund a dedicated wallet with a small USDC balance. The balance is the spending cap
2. Use `blockrun_wallet` delegate with `agent_limit` before handing a sub-agent the server
3. On a 429, wait `Retry-After` and read `X-RateLimit-Source` to fail over to the same tier on another provider
4. Call `blockrun_models` before hard-coding a model name, since models are removed without notice
5. Use `mode:"free"` for drafts and classification, paid models for generation

## Questions

### Which is better for AI agents, Antseed or BlockRun.AI?

BlockRun.AI scores 72.4 (BB) on agent readiness against Antseed's 55.1 (C), and leads in 6 of 7 scored categories. Antseed leads on reliability.

### Do Antseed and BlockRun.AI need an API key?

Antseed needs no key. BlockRun.AI takes an API key or an OAuth sign-in. An agent can also pay BlockRun.AI per call over x402, with no account.

### Can an agent call Antseed and BlockRun.AI without installing anything?

No hosted endpoint is listed for Antseed. BlockRun.AI runs on your own machine, with no hosted endpoint listed.

### Are Antseed and BlockRun.AI 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 BlockRun.AI.


## For agents

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

## Other comparisons with Antseed or BlockRun.AI

- [Claude API vs Antseed](https://www.anchorterminal.com/compare/anthropic-api-vs-antseed.md)
- [Claude API vs BlockRun.AI](https://www.anchorterminal.com/compare/anthropic-api-vs-blockrun-ai.md)
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- [Antseed vs OpenAI API](https://www.anchorterminal.com/compare/antseed-vs-openai-api.md)
- [Antseed vs Prism Inference](https://www.anchorterminal.com/compare/antseed-vs-prism-inference.md)
- [BlockRun.AI vs DeepSeek API](https://www.anchorterminal.com/compare/blockrun-ai-vs-deepseek-api.md)
- [BlockRun.AI vs Gemini Developer API](https://www.anchorterminal.com/compare/blockrun-ai-vs-gemini-api.md)
- [BlockRun.AI vs GroqCloud](https://www.anchorterminal.com/compare/blockrun-ai-vs-groq.md)
- [BlockRun.AI vs Mistral AI API](https://www.anchorterminal.com/compare/blockrun-ai-vs-mistral-api.md)
- [BlockRun.AI vs OpenAI API](https://www.anchorterminal.com/compare/blockrun-ai-vs-openai-api.md)
- [BlockRun.AI vs OpenRouter](https://www.anchorterminal.com/compare/blockrun-ai-vs-openrouter.md)
- [BlockRun.AI vs Prism Inference](https://www.anchorterminal.com/compare/blockrun-ai-vs-prism-inference.md)
- [Antseed vs OpenRouter](https://www.anchorterminal.com/compare/antseed-vs-openrouter.md)