AI & Media
Text completion
Send a prompt to a language model and get a completion. Priced per call.
Spot price
$0.0029per call
call-weighted across 409 of 479 priced endpoints
- Spread
- 8,333×
- cheapest to dearest
- Providers
- 109
- 341 hosts
- Endpoints
- 481
- 405 answered last probe
Where the offers sitLog scale. The shaded band is the middle half of the market, $0.0020 to $0.0033.
$0.0001$0.500
Every supplier below carries its index against that rate: 100 is spot, 40 is 60% below it, 310 is 3.1× it. Spot is weighted by how often each endpoint is called, so one wallet listing forty near-identical endpoints cannot move it on listings alone. The cheapest offer here is $0.0001 and the dearest $0.500.
Canonical request
| prompt | string | The prompt or message list. |
| model? | string | Model identifier. |
| max_tokens? | number | Output cap. |
Canonical response
| text | string | The completion. |
| model? | string | Model that answered. |
| usage? | object | Token counts, where reported. |
19 models reachable over x402
Model families, not versions — publishers rarely pin one, and a gateway lets the caller choose at request time.| Model | Vendor | Sellers | Endpoints | Via gateway | Cheapest | Dearest |
|---|---|---|---|---|---|---|
| Llama | Meta | 16 | 25 | 23 | $0.0010 | $0.030 |
| DeepSeek | DeepSeek | 15 | 23 | 19 | $0.0010 | $0.030 |
| Gemini | 12 | 16 | 15 | $0.0010 | $0.106 | |
| GPT-5 | OpenAI | 9 | 32 | 11 | $0.0010 | $0.500 |
| Qwen | Alibaba | 8 | 18 | 17 | $0.0010 | $0.030 |
| GPT-4o | OpenAI | 6 | 11 | 6 | $0.0010 | $0.100 |
| Claude Haiku | Anthropic | 6 | 9 | 7 | $0.0020 | $0.250 |
| Claude Sonnet | Anthropic | 6 | 9 | 7 | $0.0020 | $0.250 |
| Mistral | Mistral | 6 | 6 | 6 | $0.0010 | $0.030 |
| Gemma | 5 | 9 | 9 | $0.0010 | $0.0050 | |
| Claude (unspecified) | Anthropic | 5 | 8 | 8 | $0.0010 | $0.010 |
| GLM | Zhipu | 4 | 11 | 8 | $0.0010 | $0.018 |
| GPT-4 | OpenAI | 4 | 9 | 6 | $0.0010 | $0.100 |
| Grok | xAI | 4 | 7 | 7 | $0.0020 | $0.100 |
| Claude Opus | Anthropic | 4 | 5 | 3 | $0.0050 | $0.500 |
| Kimi | Moonshot | 2 | 6 | 3 | $0.0010 | $0.016 |
| o1 / o3 reasoning | OpenAI | 2 | 3 | 1 | $0.0010 | $0.500 |
| GPT-3.5 | OpenAI | 1 | 1 | 1 | $0.0050 | $0.0050 |
| Phi | Microsoft | 1 | 1 | 1 | $0.0010 | $0.0010 |
Prices are per call, not per token. Of the chat-completion offers in this catalog, 66 state a per-call price and 3 mention per-token pricing at all — one seller’s call is ~128 tokens and the next leaves it unstated, so a $/1M-token comparison would be a number Roundhouse invented rather than one a publisher declared.
911 endpoints offering this capability, from 109 wallets
| Endpoint | Index | Models | Last called | |||||
|---|---|---|---|---|---|---|---|---|
LLM Cost Calculator API 0x2bb7…ac6dprobable | orbisapi.com/proxy/llm-cost-calculator-api-628b02 | $0.0050 | 173 | 1 | 1 | GPT-4Claude (unspecified)Gemini | Offline | 148d ago |
LLM Hallucination Scorer API 0x2bb7…ac6dprobable | orbisapi.com/proxy/llm-hallucination-scorer-api-41a46a | $0.0050 | 173 | 1 | 1 | — | Offline | 148d ago |
LLM Model Routing Matrix API 0x2bb7…ac6dprobable | orbisapi.com/proxy/llm-model-routing-matrix-api-e4a7f9 | $0.0050 | 173 | 10 | 2 | — | Offline | 150d ago |
LLM Pricing Guide API 0x2bb7…ac6dprobable | orbisapi.com/proxy/llm-pricing-guide-api-455449 | $0.0050 | 173 | 1 | 1 | GPT-4Claude (unspecified)Gemini+1 | Offline | 148d ago |
 LLM Prompt Library API 0x2bb7…ac6dprobable | orbisapi.com/proxy/llm-prompt-library-api-45b2ab | $0.0050 | 173 | 1 | 1 | — | Offline | 148d ago |
LLM Router API 0x2bb7…ac6dprobable | orbisapi.com/proxy/llm-router-api-c496a4 | $0.0050 | 173 | 1 | 1 | GPT-4Claude (unspecified) | Offline | 148d ago |
LLM Token Estimator API 0x2bb7…ac6dprobable | orbisapi.com/proxy/llm-token-estimator-api-75f807 | $0.0050 | 173 | 1 | 1 | Claude (unspecified) | Offline | 150d ago |
Task Completion Score API 0x2bb7…ac6dprobable | orbisapi.com/proxy/task-completion-score-api-bce865 | $0.0050 | 173 | 2 | 1 | — | Offline | 149d ago |
orbisapi.com | orbisapi.com/proxy/unified-multi-provider-agent-completion-api-fa0b3b/api/unified-ai/v1/chat/completions | $0.0050 | 173 | 0 | 0 | GatewayGPT-4Claude (unspecified)Gemini+1 | Offline | — |
VPP Enrollment Score API 0x2bb7…ac6dprobable | orbisapi.com/proxy/vpp-enrollment-score-api-7bfd81 | $0.0050 | 173 | 1 | 1 | — | Offline | 169d ago |
aeo-llms AytHnv…8R1uprobable | payai.agentstools.dev/aeo/llms | $0.0050 | 173 | — | — | — | Unprobed | — |
Plainsight 0x932f…13aCprobable | shop.netlobo.com/chat | $0.0050 | 173 | 1 | 1 | — | Live | 24d ago |
Plainsight | shop.netlobo.com/v1/chat/completions | $0.0050 | 173 | 1 | 1 | Gateway | Live | 24d ago |
sovereign-x402-zeta.vercel.app | sovereign-x402-zeta.vercel.app/api/v1/chat/completions | $0.0050 | 173 | 1 | 1 | Gateway | Live | 10d ago |
 UUID Generator 0x8C12…f1b2probable | uuid.use.x402atlas.com/generate | $0.0050 | 173 | 3 | 3 | — | Live | 12d ago |
Spread Paywall API 0xD7CD…481dprobable | workspace-x402-paywall.onrender.com/ai/ask | $0.0050 | 173 | 5 | 2 | — | Live | 13d ago |
eudata402 | x402-seller-202595743428.europe-west1.run.app/chat | $0.0050 | 173 | 1 | 1 | GatewayGemmaLlamaMistral+2 | Live | 78d ago |
x402-services-production.up.railway.app 0x544E…E064probable | x402-services-production.up.railway.app/api/ai/chat | $0.0050 | 173 | 1 | 1 | GatewayGPT-4oGeminiLlama+2 | Live | 105d ago |
x402.alice-v0.workers.dev | x402.alice-v0.workers.dev/v1/chat/completions | $0.0050 | 173 | 3 | 2 | GatewayGPT-4oGPT-4GPT-3.5+3 | Offline | 25d ago |
x402.aurelianflo.com 0x348D…dC9dprobable | x402.aurelianflo.com/api/do/barcode/generate | $0.0050 | 173 | — | — | — | Live | — |
x402.orth.sh | x402.orth.sh/baseten/v1/chat/completions | $0.0050 | 173 | 0 | 0 | Gateway | Live | 89d ago |
x402.orthogonal.com | x402.orthogonal.com/baseten/v1/chat/completions | $0.0050 | 173 | 13 | 3 | Gateway | Live | 9d ago |
 srch.best 0xf4c3…8854probable | x402.srch.best/answer | $0.0050 | 173 | 1 | 1 | — | Live | 85d ago |
Citiview Agent Market | agents.citiviewgroup.com/v1/glm5-flash/chat/completions | $0.0051 | 176 | 2 | 2 | GatewayGLM | Live | 24d ago |
AgentRXI | agentrxi.com/v1/coder/chat/completions | $0.0051 | 177 | 2 | 2 | GatewayQwen | Live | 24d ago |
Reading this table
- Price is what the catalog carries for one unit, per call. It is a published figure, not a quote — read the live 402 before paying.
- Index is that price against the spot rate, so it moves only with price — there is no separate sort for it, because ordering by index and ordering by price are the same ordering.
- 30d calls and payers are the upstream catalog’s own counters for that endpoint, so they measure demand, not quality.
- Status is the last liveness probe. There is no latency or uptime column yet: a single probe outcome cannot support one, and inventing a percentage from it would be worse than leaving it out.
- Settled volume per endpoint is also absent, and cannot be derived — a settlement carries the payee wallet, not the endpoint that was called, so a wallet serving forty endpoints cannot be split between them. The provider wallet’s own record is one click away on each row.
- The canonical response above is the shape Roundhouse maps each provider onto. Field mappings per provider are not published yet; today the contract is the target, not a guarantee about any one endpoint’s payload.
The candidate read for this capability hit its cap, so this list is a floor rather than every offer in the catalog.
Hand this page to an agent
Copy the prompt and paste it into Claude, an MCP client or your own agent — it will pick the best provider of this capability over the free read API. No key, no account.
GET roundhouseai.io/unified.json?capability=llm-completion
Show the promptHide the prompt
Using Roundhouse, compare every x402 provider of Text completion and pick one for me. Weigh the price per unit against whether the endpoint answered when last probed, and say what the cheapest option would cost against the median. curl -s 'https://roundhouseai.io/unified.json?capability=llm-completion' The canonical request and response in that document are the shape every provider is mapped onto. Before paying, check the provider's record and read the live 402: curl -s 'https://api.roundhouseai.io/v0/merchants/<the payTo wallet on the offer you choose>' The /v0 API needs an API key (`authorization: Bearer rh_live_…`) on everything except /v0/unified* and /v0/endpoints. Either pay over x402 (mint a personal key for $0.01 at GET https://api.roundhouseai.io/v0/test/x402), or ask me for an organization key, which I create at https://roundhouseai.io/dashboard/connections. If you have neither, ask before going further. If you do not have Roundhouse tools or skills installed, read https://roundhouseai.io/skill.md first — it is the whole procedure.