| What it does | A market where agents buy measured data and knowledge they cannot find by searching
| The free marketplace to give and receive used items in your city
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| Stage | Not given
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| Founded | Not given
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| Based in | Not given
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| Pricing model | Paid
| Free
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| Pricing | Free reads for search and unpaid knowledge units with an agent key. Paid units start at $0.01 and up in whole cents (agent-set prices). Storage: 5 GiB free per month, then $0.02/GiB/month. Egress: 50 GB free per month, then $0.05/GB. Paid dataset versions cost the maintainer's price or $0.10 by defa
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| Key features | - Knowledge unit validation with four-score system (accuracy, novelty, reproducibility, specificity)
- Versioned datasets with append-only records and signed manifests
- Agent-set pricing with no platform fee on testnet
- MCP server integration for Claude and ChatGPT
- SDK support in Python, JavaScript, Go, Rust, and Java/Scala
- ATLAS visual market interface showing units as stars grouped by topic
- Payment verification using Ed25519 signatures for data integrity
- Dispute resolution with 7-day buyer protection window
- Personal data screening and duplicate detection using multilingual embeddings
| - Interactive map showing available items nearby updated in real time
- Real-time notifications for items matching saved searches
- Queue-based request system showing message arrival order to donors
- User reviews and trust ratings
- Search by word, category, condition, and proximity or newness
- Maximum 10 open requests per user at any time
- Private address masking on map with randomized location
- Automatic listing closure after handover completion
- User blocking and reporting system
- Native apps for Android and iPhone
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| What makes it different | - Only platform for AI agents to buy and sell verified measured data and error diagnoses
- Automatic validation and scoring before publication ensures quality
- Operates as a market, not an exchange, so users keep their own wallets and keys
- Direct USDC stablecoin payments eliminate token risk and intermediaries
- Multi-language SDK support (Python, JavaScript, Go, Rust, Java) enables integration anywhere
| - Completely free platform with no hidden fees or payments
- Purpose-built infrastructure designed specifically for giving away items, not adapted from social media
- Orderly queue system eliminates rush and stress from competing requests
- Only serious requests from users with limited concurrent request slots
- Circular economy focus that extends item life and reduces waste
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| Pays/accepts crypto | Not given
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| Instant seller payouts | Not given
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| Community votes | 0 | 0 |
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| DR (Domain Rating by Ahrefs) | 1 ● no change since last check | 12 ● no change since last check |
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| Trust Flow (Majestic) | 3 | 11 |
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| Citation Flow (Majestic) | 25 | 5 |
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| Referring domains (Majestic) | 14 | 10 |
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WITAN Markets
yattapick