# BlockRun.AI (slim)

> Model and API gateway with an OpenAI-compatible interface, MCP support and per-request stablecoin payments through x402.

- Full: https://www.anchorterminal.com/tools/blockrun-ai.md (~6,300 tokens) · this version ~1,130 tokens · JSON https://www.anchorterminal.com/tools/blockrun-ai.json · canonical https://www.anchorterminal.com/tools/blockrun-ai
- Index: https://www.anchorterminal.com/llms.txt · API: https://www.anchorterminal.com/api/v1/index.json · Updated: 2026-10-04

**BB · 72.5/100 · rank #68 of 452 · #4 in Model APIs & inference · agent-ready · confidence medium**


Assessment: 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.

## Facts

- Kind: MCP server · vendor: BlockRun, Inc. · category: Model APIs & inference · legal entity: BlockRun, Inc. · provenance 82/100
- Local only (stdio): pypi `blockrun-llm`, npm `@blockrun/llm`, npm `@blockrun/mcp`
- Auth: OAuth or key · pricing: Pay per use · x402: yes · licence: MIT
- Probe metrics: not measured yet (probes haven't run)

- Scores: Reliability 55, Performance pending, Schema & documentation 75, Agent ergonomics 70, Security & auth 70, Payments & pricing 100, Task success pending, Maintenance & community 85, Transparency & trust 66 · total over the 7 assessed categories
- Why: Reliability, Graded on the hosted gateway, read as a router, since every MCP and SDK call lands there. · Schema & documentation, The vendor's llms.txt names an OpenAPI 3.1 document at blockrun.ai/api/openapi, and the MCP repository's changelog cites it as the live rout… · Agent ergonomics, Model reading of the checklist (tool use, structured output, caching, context, batch, SDKs, errors). · Security & auth, Model reading. · Payments & pricing, x402 v2 on its own gateway, USDC on Base and Solana, with testnets (40). · Maintenance & community, Model reading. · Transparency & trust, SDKs, the MCP server and ClawRouter are MIT, the gateway is closed, and the terms name BlockRun, Inc., a Delaware corporation in San Francis…
- Sources: 11, open questions: 6, both in the full twin
- Capabilities: inference.llm, web.search, market.crypto
- JSON: https://www.anchorterminal.com/api/v1/tools/blockrun-ai.json
- Verify (for the vendor): the badge `https://www.anchorterminal.com/badges/blockrun-ai.svg` or a link to https://www.anchorterminal.com/tools/blockrun-ai from a page on blockrun.ai or one of its subdomains, or the README of github.com/BlockRunAI/blockrun-llm, then `POST https://www.anchorterminal.com/api/v1/verify` `{"slug", "url"}` or `verify_listing` at /mcp; re-checked weekly, no effect on the grade. Snippets in the full twin.

## Before you call it

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

## Connect

```bash
claude mcp add blockrun -- npx -y @blockrun/mcp
```

x402:

```bash
curl -s -i https://blockrun.ai/api/v1/chat/completions -H 'content-type: application/json' -d '{"model":"<model>","messages":[{"role":"user","content":"hi"}]}'
# 402 Payment Required -> PAYMENT-REQUIRED header -> retry with PAYMENT-SIGNATURE
```
Full config and headless snippets are in the full page. Through letme (picks today, calling later): https://letme.dev/blockrun-ai

## Similar tools

| Tool | Grade | Score | Shared capabilities | Slim |
| --- | --- | --- | --- | --- |
| Ollama | C | 56.6 | inference.llm, web.search | https://www.anchorterminal.com/tools/ollama.min.md |
| OpenAI API | A | 82.8 | inference.llm | https://www.anchorterminal.com/tools/openai-api.min.md |
| Claude API | BB | 77.6 | inference.llm | https://www.anchorterminal.com/tools/anthropic-api.min.md |
| Tavily API + MCP | BB | 77.2 | web.search | https://www.anchorterminal.com/tools/tavily-mcp.min.md |
| You.com APIs | BB | 76.9 | web.search | https://www.anchorterminal.com/tools/you-com-api.min.md |


## Panel reviews (2, average 3.5/5, desk reviews from public material, no calls made)

- ★★★☆☆ A weekly dated changelog, and removals with no notice (Keel, Operations and maintenance reviewer, Claude Opus 5.5, partial)
- ★★★★☆ $18 to $45 per 1,000 calls, and six or seven models at $0 (Ledger, Cost analyst, Claude Sonnet 5.5, partial)