posttosource.com alternatives
12 MCP servers, A2A agents and x402 APIs that also do x402 paid apis, knowledge & memory, social media, ranked by how much they overlap with posttosource.com (x402 paid API), live ones first.
Compared
| Name | Type | Live | Tools / skills | Check |
|---|---|---|---|---|
| posttosource.com (this one) | x402 paid API | Yes | 1 | – |
| billionaireorder.com | x402 paid API | Yes | 6 | – |
| xhagents.xyz | x402 paid API | Yes | 12 | – |
| Vaaya | x402 paid API | Yes | 12 | 90/100 |
| Chip MCP | MCP server | Yes | – | – |
| Prowlo — Reddit & X for AI agents | MCP server | Yes | – | – |
| RagSphere | A2A agent | Yes | 2 | – |
| agdata.shveik.dev | x402 paid API | Yes | 12 | – |
| agentdata-api.sander-van-aard.workers.dev | x402 paid API | Yes | 12 | – |
| btcnode.uk | x402 paid API | Yes | 10 | – |
| aispace.bot | x402 paid API | Yes | 11 | – |
| charliemorrison.dev | x402 paid API | Yes | 3 | – |
| familyofficeknowledgegraph.ai | x402 paid API | Yes | 1 | – |
Live = answered our latest free daily check. Check = our automated scored check (card, handshake, endpoint, domain), not a guarantee.
The alternatives
- billionaireorder.com Live x402
For AI agents building agent swarms, synthetic users, NPCs, or trading bots. Input: archetype + prompt (e.g. 'risk-taking crypto founder'). Output: OCEAN Big Five + Dark Triad + trading psychology vector with emotional…
x402 paid API · 6 endpoints · also does x402 paid apis, knowledge & memory, social media
- xhagents.xyz Live x402
Ask the XH Agents knowledge base (15 field notes on infrastructure, x402 and agent tooling) (24 paid endpoints on xhagents.xyz.)
x402 paid API · 12 endpoints · also does knowledge & memory, social media
- Vaaya Live x402
Credit infrastructure for AI agents. They spend on credit, you settle later, with controls on every transaction.
x402 paid API · 12 endpoints · check 90/100 · also does x402 paid apis, social media
- Chip MCP Live MCP
Project memory, tasks and Telegram notifications for your coding agent. Chip account required.
MCP server · digital.chip-ai · also does knowledge & memory, social media
- Prowlo — Reddit & X for AI agents Live MCP
Reddit & X data for AI agents over MCP. Semantic search, hosted, no Reddit API.
MCP server · com.prowlo · also does knowledge & memory, social media
- RagSphere Live A2A
Secure RAG agent for PDF, Excel, and YouTube analysis with rate limiting and API key protection.
A2A agent · RagSphere Team · 2 skills · also does knowledge & memory, social media
- agdata.shveik.dev Live x402
Screenshot API for AI agents: send {url} and get a JPEG, PNG, WebP or PDF of the page as base64 in JSON, with final URL, byte size and pixel size. Pick a desktop, mobile or tablet viewport, full page, dark mode, a delay…
x402 paid API · 12 endpoints · also does x402 paid apis, social media
- agentdata-api.sander-van-aard.workers.dev Live x402
Real-time crypto market news with sentiment analysis and top headlines ranked by importance, for $0.01 per call. One request, no parameters needed — get the latest market-moving stories as structured JSON, ready for tra…
x402 paid API · 12 endpoints · also does x402 paid apis, social media
- btcnode.uk Live x402
Last N blocks (default 10): height, hash, size, txcount, time — flat $0.001 per call, USDC on Base, no signup. (10 paid endpoints on btcnode.uk.)
x402 paid API · 10 endpoints · also does x402 paid apis, social media
- aispace.bot Live x402
Text-to-image generation on Venice models (Flux, SD3.5, GPT-Image, HunyuanImage, and more), paid per request in USDC on Base via x402, no API key. Resolve a model id from GET /api/v1/models?type=image and an optional st…
x402 paid API · 11 endpoints · also does x402 paid apis, knowledge & memory
- charliemorrison.dev Live x402
Web-content reader: fetch any http(s) URL and return clean readable text, title/description/canonical, and outbound links as JSON — the data an agent ingests on each step of a crawl or RAG loop. Input: url. (3 paid endp…
x402 paid API · 3 endpoints · also does x402 paid apis, knowledge & memory
- familyofficeknowledgegraph.ai Live x402
The Family Office Knowledge Graph index of record for $0.01 USDC — every node's record list (LEI, legal name, aliases, register ids, field states, as-of) as a signed statement (EdDSA, kid fo-kg-x402-2026-09) with a rece…
x402 paid API · 1 endpoint · also does x402 paid apis, knowledge & memory