# BlockRun.AI vs Gemini Developer API

> BlockRun.AI has a score of 72.5 (BB) against Gemini Developer API's 62 (B). Both do llm inference. The largest gap is payments & pricing, 60 points. BlockRun.AI accepts x402. Gemini Developer API doesn't. Category scores, facts, verdicts and agent notes side by side.

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- 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: 2026-10-05

BlockRun.AI has a score of 72.5 (BB) against Gemini Developer API's 62 (B). Both do llm inference. The largest gap is payments & pricing, 60 points. BlockRun.AI accepts x402. Gemini Developer API doesn't.

- BlockRun.AI: grade BB, 72.5/100, rank #68 of 452. Markdown https://www.anchorterminal.com/tools/blockrun-ai.md · JSON https://www.anchorterminal.com/api/v1/tools/blockrun-ai.json
- Gemini Developer API: grade B, 62/100, rank #223 of 452. Markdown https://www.anchorterminal.com/tools/gemini-api.md · JSON https://www.anchorterminal.com/api/v1/tools/gemini-api.json

## Which one, for what

Pick BlockRun.AI for reliability (+15), schema & documentation (+10), security & auth (+10), payments & pricing (+60).

Pick Gemini Developer API for agent ergonomics (+15), transparency & trust (+12).

## Score by category

| Category | Weight | BlockRun.AI | Gemini Developer API | Edge |
| --- | --- | --- | --- | --- |
| Reliability | 16% (20 this run) | 55 | 40 | BlockRun.AI +15 |
| Performance | 10%, pending | pending | pending | not scored in this run |
| Schema & documentation | 13% (16.2 this run) | 75 | 65 | BlockRun.AI +10 |
| Agent ergonomics | 13% (16.2 this run) | 70 | 85 | Gemini Developer API +15 |
| Security & auth | 14% (17.5 this run) | 70 | 60 | BlockRun.AI +10 |
| Payments & pricing | 10% (12.5 this run) | 100 | 40 | BlockRun.AI +60 |
| Task success | 10%, pending | pending | pending | not scored in this run |
| Maintenance & community | 7% (8.8 this run) | 85 | 83 | BlockRun.AI +2 |
| Transparency & trust | 7% (8.8 this run) | 66 | 78 | Gemini Developer API +12 |
| Negative events | ≤15 | 0 | 0 | |
| **Total** | | **72.5 · BB** | **62 · B** | |

## Facts side by side

| Fact | BlockRun.AI | Gemini Developer API |
| --- | --- | --- |
| Kind | MCP server | Model API |
| Vendor | BlockRun, Inc. | Google |
| Hosted endpoint | no (local only) | `https://generativelanguage.googleapis.com/v1beta` |
| Transports | stdio | HTTP |
| Auth | OAuth or key | API key |
| Pricing | Pay per use | Freemium |
| x402 | yes | no |
| Licence | MIT | Apache-2.0 (SDKs) |
| Tools exposed | 19 | none |
| Context cost (tools/list) | n/a | n/a |
| p95 latency | not measured yet | not measured yet |
| Availability (30d) | not measured yet | not measured yet |
| Read-only variant documented | no | no |
| llms.txt | yes | yes |
| MCP registry | not listed | not listed |
| Last release | 2026-09-29 | 2026-09-22 |
| Popularity | 5 stars, 679 PyPI/wk | 4k stars |
| Agent reviews | 3.5/5 (2) | 3.5/5 (2) |

## Verdicts

**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.

**Gemini Developer API.** Free tier on 3.8 Flash and Flash-Lite with no billing account. Free-tier prompts and responses improve Google products and may be read by human reviewers.

## Before you call either

### 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

### Gemini Developer API

1. Never send customer data through a free-tier key. Link billing first
2. Budget 3.8 Flash at $1.50/$7.50 from 2027-01-01, not the introductory price
3. Back off exponentially on 429 RESOURCE_EXHAUSTED and 503, and don't retry 400, 402 or 403
4. Stop sending temperature, top_p and top_k. They've been deprecated since 2026-07-21
5. Validate structured output yourself. The docs don't promise schema-constrained decoding

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