Providers

Route any agent call to 25 paid AI APIs through Spawnpay. BYOK, flat $0.001 USDC per upstream 2xx, unified budget + receipts.

All providers run BYOK — you supply your upstream credential, Spawnpay only routes, bills, and receipts. No reselling, no quota markup, no terms-of-service drama.

Catalogue

OpenAI

$0.001 / 2xx

Call gpt-4o / gpt-4o-mini / DALL-E through a single spk_ key with USDC billing and unified receipts.

BYOK upstream key · POST /v1/chat/completions

Anthropic

$0.001 / 2xx

Route Claude Opus, Sonnet, and Haiku through Spawnpay with the same billing pipeline as every other paid tool.

BYOK upstream key · POST /v1/messages

OpenRouter

$0.001 / 2xx

Get pay-as-you-go access to 200+ models (Llama 3, Mistral, Claude, GPT-4, …) under one spk_ key.

BYOK upstream key · POST /api/v1/chat/completions

Brave Search

$0.001 / 2xx

Web search through Brave with Spawnpay routing — every query gets a USDC receipt and a budget guardrail.

BYOK upstream key · GET /res/v1/web/search

Tavily Search

$0.001 / 2xx

AI-optimised web search through Tavily, billed in USDC by the call.

BYOK upstream key · POST /search

Serper (Google SERP)

$0.001 / 2xx

Google search results through Serper, behind Spawnpay billing.

BYOK upstream key · POST /search

Replicate

$0.001 / 2xx

Run Flux, SDXL, Whisper, and any other Replicate model through Spawnpay with USDC billing per call.

BYOK upstream key · POST /v1/models/black-forest-labs/flux-schnell/predictions

FxTwitter (free demo)

$0.001 / 2xx

Free public tweet-metadata API — no provider key required. Useful to dry-run the Spawnpay proxy without burning provider quota.

No upstream key required · GET /elonmusk/status/1

Wikipedia (free)

$0.001 / 2xx

Free MediaWiki API behind Spawnpay routing — drop-in for research agents that need encyclopedic context.

No upstream key required · GET /w/api.php

Hacker News Algolia (free)

$0.001 / 2xx

Hacker News full-text search via the official Algolia mirror — free, fast, no key.

No upstream key required · GET /api/v1/search

Open-Meteo (free weather)

$0.001 / 2xx

Free worldwide weather forecasts + history — perfect for travel, logistics, or location-aware agents.

No upstream key required · GET /v1/forecast

Frankfurter (free FX rates)

$0.001 / 2xx

European Central Bank reference exchange rates — free, no rate-limit complaints.

No upstream key required · GET /latest

Mistral AI

$0.001 / 2xx

Mistral Large / Medium / Small models — European LLM provider — behind one Spawnpay key with USDC billing.

BYOK upstream key · POST /v1/chat/completions

Groq

$0.001 / 2xx

Fastest LLM inference on the planet (Llama 3.1, Mixtral, Gemma) — Spawnpay handles the receipts, you handle the throughput.

BYOK upstream key · POST /openai/v1/chat/completions

Together AI

$0.001 / 2xx

Hosted open-source models (Llama, Qwen, DeepSeek, FLUX) — Spawnpay wraps every call with a USDC receipt and shared budget.

BYOK upstream key · POST /v1/chat/completions

Cohere

$0.001 / 2xx

Cohere Command R+ / Embed / Rerank behind Spawnpay billing — RAG-grade tools with a unified budget.

BYOK upstream key · POST /v2/chat

Voyage AI

$0.001 / 2xx

Best-in-class embeddings (voyage-3-large, voyage-multimodal) — meter per-call through Spawnpay with the rest of your stack.

BYOK upstream key · POST /v1/embeddings

ElevenLabs

$0.001 / 2xx

Realistic text-to-speech voices through Spawnpay — every render gets a USDC receipt + cross-provider budget.

BYOK upstream key · POST /v1/text-to-speech/21m00Tcm4TlvDq8ikWAM

AssemblyAI

$0.001 / 2xx

Speech-to-text + diarisation behind one Spawnpay key — pipeline audio without juggling another billing relationship.

BYOK upstream key · POST /v2/transcript

Stability AI

$0.001 / 2xx

SDXL, Stable Image Core, Stable Audio — Stability AI behind Spawnpay routing + USDC receipts.

BYOK upstream key · POST /v2beta/stable-image/generate/core

DeepSeek

$0.001 / 2xx

DeepSeek V3 + R1 reasoning models — cost-effective Chinese-trained LLMs behind Spawnpay routing.

BYOK upstream key · POST /chat/completions

Fireworks AI

$0.001 / 2xx

Fast hosted inference for Llama, Qwen, DeepSeek, Mixtral — Fireworks AI under Spawnpay billing.

BYOK upstream key · POST /inference/v1/chat/completions

Perplexity

$0.001 / 2xx

Perplexity Sonar models with built-in web search — citations + research, billed in USDC.

BYOK upstream key · POST /chat/completions

Hyperbolic

$0.001 / 2xx

GPU-accessible model hosting (Llama 3.1 405B, FLUX, Whisper) — Hyperbolic under Spawnpay routing.

BYOK upstream key · POST /v1/chat/completions

xAI (Grok)

$0.001 / 2xx

Grok models from xAI behind Spawnpay routing — Twitter-native research agents with USDC receipts.

BYOK upstream key · POST /v1/chat/completions

How to call any provider

curl -X POST https://spawnpay.ai/api/proxy \
  -H 'Authorization: Bearer spk_live_…' \
  -H 'X-Provider-Key: $YOUR_UPSTREAM_KEY' \
  -H 'Content-Type: application/json' \
  -d '{ "provider": "<slug>", "path": "<upstream path>", "method": "POST", "body": { … } }'