Synap by Linkrra
synap402.com
Synap by Linkrra — OpenAI-compatible chat completions for coding and agent workloads on dedicated GPUs. Pay per call in USDC on any network offered in the payment challenge; no account, no API key. First call free per new wallet (cheap models, up to 512 tokens, non-streaming, daily cap). Self-hosted open models use 4-bit weights. From $0.001 per call. Streaming supported: https://synap402.com
- Category
- Service
- Networks
- BaseSolana
- Starting price
- $0.001
- Paid calls, 30 days
- 32
- Payers, 30 days
- 1
How to pay
Call an endpoint, read the price in the 402 answer, and pay from your own wallet with any x402 client on Base or Solana. The payment goes straight to the provider: Autonomo lists this API but isn't part of the payment. See The x402 directory.
Paid endpoints
13 endpoints, sorted by usage. Prices are per request.
| Endpoint | Price | Network | Facilitator | Calls / 30d |
|---|---|---|---|---|
POST/api/billing/x402/chat/completions Synap by Linkrra — OpenAI-compatible chat completions for coding and agent workloads on dedicated GPUs. Pay per call in USDC on any network offered in the payment challenge; no account, no API key. First call free per new wallet (cheap models, up to 512 tokens, non-streaming, daily cap). Self-hosted open models use 4-bit weights. From $0.001 per call. Streaming supported: https://synap402.com | $0.001 | Base | Coinbase CDP | 12 |
POST/api/billing/x402/models/qwen3-30b-a3b/chat/completions Synap by Linkrra · Qwen3 30B A3B Instruct 2507 — general, high-throughput. OpenAI-compatible inference: 96K context, dedicated GPUs we operate, 4-bit AWQ. Pay per call in USDC on any network offered in the payment challenge; no account, no API key. First call free per new wallet (cheap models, up to 512 tokens, non-streaming, daily cap). From $0.001 per call. Streaming supported. | $0.001 | Base | Coinbase CDP | 4 |
POST/api/billing/x402/models/gemma-4-26b-a4b-it/chat/completions Synap by Linkrra · Google Gemma 4 26B A4B Instruct — fast general model, long context. OpenAI-compatible inference: 32K context, dedicated GPUs we operate, 4-bit AWQ. Pay per call in USDC on any network offered in the payment challenge; no account, no API key. From $0.001 per call. Streaming supported. | $0.001 | Base | Coinbase CDP | 3 |
POST/api/billing/x402/models/gpt-oss-20b/chat/completions Synap by Linkrra · OpenAI gpt-oss-20b — fast + cheap general model. OpenAI-compatible inference: 64K context, dedicated GPUs we operate, native 4-bit MXFP4. Pay per call in USDC on any network offered in the payment challenge; no account, no API key. First call free per new wallet (cheap models, up to 512 tokens, non-streaming, daily cap). From $0.001 per call. Streaming supported. | $0.001 | Base | Coinbase CDP | 3 |
POST/api/billing/x402/models/qwen3-coder-30b/chat/completions Synap by Linkrra · Qwen3 Coder 30B A3B Instruct — coding, everyday. OpenAI-compatible inference: 96K context, dedicated GPUs we operate, 4-bit AWQ. Pay per call in USDC on any network offered in the payment challenge; no account, no API key. From $0.001 per call. Streaming supported. | $0.001 | Base | Coinbase CDP | 3 |
POST/api/billing/x402/models/qwen3-vl-30b-a3b-instruct/chat/completions Synap by Linkrra · Qwen3 VL 30B A3B Instruct — vision. OpenAI-compatible inference: 64K context, dedicated GPUs we operate, 4-bit AWQ. Pay per call in USDC on any network offered in the payment challenge; no account, no API key. From $0.001 per call. Streaming supported. | $0.001 | Base | Coinbase CDP | 2 |
POST/api/billing/x402/models/muse-glimmer-30b/chat/completions Synap by Linkrra · Meta Muse Glimmer 30B — agentic reasoning + tool use (text). OpenAI-compatible inference: 128K context, dedicated GPUs we operate, 4-bit AWQ. Pay per call in USDC on any network offered in the payment challenge; no account, no API key. From $0.001 per call. Streaming supported. | $0.001 | Base | Coinbase CDP | 1 |
POST/api/billing/x402/tasks/describe-image Synap by Linkrra - describe an image: send image_url (fetched server-side, public URLs only) or image_base64 (PNG, JPEG, GIF, WebP, 4 MB) and an optional question; get a precise description with visible text transcribed. Qwen3-VL on dedicated GPUs. Fetch fails = no charge. Pay per call in USDC; no account, no API key. | $0.0095 | Base | Coinbase CDP | 1 |
POST/api/billing/x402/tasks/extract-json Synap by Linkrra - JSON extraction: send text and a JSON Schema, get data validated against that schema server-side (one automatic repair retry). Output still invalid = 422 and nothing is charged. Open models on dedicated GPUs. Pay per call in USDC on any network in the payment challenge; no account, no API key. | $0.001 | Base | Coinbase CDP | 1 |
POST/api/billing/x402/tasks/review-code Synap by Linkrra - code review: send a unified diff or source code, get a summary and a JSON list of issues (severity, file, line, message, suggestion) - bugs, security, edge cases, no style nits. Invalid model output = no charge. Open models on dedicated GPUs. Pay per call in USDC on any network in the payment challenge; no account, no API key. | $0.001 | Base | Coinbase CDP | 1 |
POST/api/billing/x402/tasks/summarize-url Synap by Linkrra - summarize a web page: send a URL, we fetch it server-side (public http/https, HTML or plain text, 2 MB, 10 s) and return a faithful summary plus the page title. Fetch fails = no charge. Open models on dedicated GPUs. Pay per call in USDC on any network in the payment challenge; no account, no API key. | $0.0026 | Base | Coinbase CDP | 1 |
POST/api/billing/x402/topup Synap credits — fund an inference wallet with USDC on any network offered in the payment challenge. $1–$1000 per top-up; $0.2273/M credits. | $1.0 | Base | PayAI | 0 |
POST/api/billing/x402/tts Linkrra Voice — text-to-speech with WAV output and automatic Hebrew nikud. Pay per call in USDC on any network offered in the payment challenge; no account or API key. From $0.01 per call. | $0.01 | Base | PayAI | 0 |
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