Feedo Protocol Python SDK

The official Developer SDK for interacting with the Feedo Protocol.

Feedo is a decentralized network consisting of Search, Consensus, and Storage nodes. This SDK provides a unified, asynchronous interface to interact with all layers of the Feedo Protocol.

Features

• Dynamic Node Routing: The SDK automatically pings seed nodes and routes your requests to the fastest available node. If a node goes offline, the router instantly falls back to another healthy node.
• Fully Asynchronous: Built on top of httpx and asyncio for maximum performance in AI agents and backend applications.
• End-to-End Encryption: Built-in E2EE using AES-256-GCM and ECIES for private file storage.
• DID Authentication: Every request is signed with your Ethereum wallet key, verified by the Consensus and Storage nodes.

Installation

pip install feedo-sdk

Initialization

The SDK requires an event loop since it is entirely async. You do not need to specify URLs for the nodes; the SDK auto-discovers the fastest connection.

import asyncio
from feedo import FeedoClient

async def main():
    client = FeedoClient()
    # Your code here

asyncio.run(main())

To perform authenticated operations (upload, index, search private files), provide your wallet's private key:

from feedo import FeedoClient

client = FeedoClient(
    private_key="0x...",   # your wallet private key
    storage_seeds=["http://localhost:3001"],
    consensus_seeds=["http://localhost:3000"],
    search_seeds=["http://localhost:8000"],
)

(Optional) Custom seed nodes for private clusters:

client = FeedoClient(
    search_seeds=["https://my-search.node"],
    consensus_seeds=["https://my-consensus.node"],
    storage_seeds=["https://my-storage.node"]
)

⚠️ Important: Registering Your DID

Before you can perform any write operations (uploading files, indexing documents, granting access), you MUST register your Decentralized Identifier (DID) on the Feedo Consensus network.

Registering your DID creates your identity on the blockchain and grants you the initial credits (500,000 credits) needed to pay for storage and compute. Without a registered DID, the storage nodes will reject your uploads due to "insufficient balance".

You only need to do this once per wallet.

No-code option: create your identity in the browser at https://feedo.ink/identity.html — connect any wallet, register the DID, and generate a usage key in one flow.

import asyncio
from eth_account import Account
from feedo import FeedoClient

async def main():
    account = Account.create()

    client = FeedoClient(private_key=account.key.hex())

    # 1. Register the DID on the network
    await client.consensus.register_did(account.key.hex())
    print("DID Registered successfully! You can now upload files.")

asyncio.run(main())

Quick Start — Full E2EE Flow

import asyncio
from eth_account import Account
from feedo import FeedoClient

async def main():
    account = Account.create()

    client = FeedoClient(
        private_key=account.key.hex(),
        storage_seeds=["http://localhost:3001"],
        consensus_seeds=["http://localhost:3000"],
        search_seeds=["http://localhost:8000"],
    )

    # 1. Register your DID on the network
    await client.consensus.register_did(account.key.hex())

    # 2. Upload an encrypted private file and index it for search
    content = b"My secret post content"
    hash_id = await client.upload_private_file(
        content,
        index_for_search=True,
        metadata={"app_id": "com.myapp", "type": "post"}
    )
    print("Hash:", hash_id)

    # 3. Search your private files
    results = await client.search.query("secret", limit=10, app_id="com.myapp")
    print(results)

asyncio.run(main())

Search Module (client.search)

The Search module handles semantic queries and document vectorization.

search(query, limit=50, federated=True, item_type="all", offset=0, app_id=None, search_type="text", image_url=None, namespace=None)

Perform a semantic search across the network. By default, this performs text-to-text semantic search. To search for an image using text, set search_type="image". To search for an image using another image, provide the image_url and set search_type="image".

• namespace (optional) — restrict the search to a single namespace (multi-tenant isolation).
• app_id (optional) — filter by application.

# Text-to-text search
response = await client.search.search("DeFi protocols", limit=5, item_type="post", app_id="SocialApp1")

# Search only within a namespace
response = await client.search.search("DeFi protocols", limit=5, namespace="workspace-42")

# Text-to-image search
text_to_image = await client.search.search("red dress", limit=5, item_type="image", search_type="image")

# Image-to-image search
image_to_image = await client.search.search("", limit=5, item_type="image", search_type="image", image_url="https://example.com/dress.jpg")
print(response.get("results", []))

query(query_text, limit=10, item_type="all", app_id=None) is kept as a shorter backwards-compatible alias of search().

get_documents(limit=50, offset=0, item_type="all", app_id=None, namespace=None)

Fetch a feed of the latest indexed documents.

feed = await client.search.get_documents(item_type="post", app_id="SocialApp1")

# filtered by namespace
feed = await client.search.get_documents(namespace="workspace-42")

index_document(content, metadata=None, namespace=None, hash_id=None)

Index a public document into the vector database.

• namespace (optional) — logical partition for the document.
• hash_id (optional) — custom id (useful for later deletion); auto-generated if omitted.

await client.search.index_document("Bitcoin is decentralized.", {"type": "post"})
await client.search.index_document("Some private note", {"type": "post"}, namespace="workspace-42")

index_private_document(hash_id, plaintext, metadata=None, namespace=None)

Index a private document (requires private_key to sign the request).

await client.search.index_private_document(hash_id, "My private content", {"app_id": "com.myapp"}, namespace="workspace-42")

count_by_namespace(namespace, federated=True) -> {"count": int}

Count all vectors in a namespace across the federated network.

res = await client.search.count_by_namespace("workspace-42")
print(res["count"])

delete_by_namespace(namespace) -> {"status": str, "deleted": int}

Delete all vectors in a namespace.

res = await client.search.delete_by_namespace("workspace-42")
print(res["deleted"])

get_stats()

Retrieve network statistics.

stats = await client.search.get_stats()

Consensus Module (client.consensus)

The Consensus module manages identity (DIDs), naming (.feedo domains), and grants.

register_did(private_key_hex)

Register a new Decentralized Identifier on the network.

await client.consensus.register_did(account.key.hex())

resolve_name(name)

Resolve a .feedo domain to its underlying CID.

info = await client.consensus.resolve_name("my-app.feedo")
print(info['cid'])

get_did_balance(did)

Check the credit balance of a specific DID.

balance = await client.consensus.get_did_balance("did:feedo:0xabc...")
print(balance['balance_credits'])

register_name(name, did, cid, signature_hex)

Register a new .feedo domain.

await client.consensus.register_name("my-app", "did:feedo:...", "Qm...", "0x...")

grant_file_access(file_hash, grantee_did, encrypted_sym_key, public_key, signature)

Grant another DID access to an encrypted file.

await client.consensus.grant_file_access(hash_id, grantee_did, enc_key, pub_key, sig)

Storage Module (client.storage)

The Storage module acts as a decentralized file system.

upload_file(file_data, filename="file")

Upload raw bytes to the network. Returns the file hash ID.

with open("./image.png", "rb") as f:
    hash_id = await client.storage.upload_file(f.read(), "image.png")
print("Hash:", hash_id)

download_file(hash_id) -> bytes

Download a file from the network by its hash.

raw_data = await client.storage.download_file("abc123...")
with open("downloaded.png", "wb") as f:
    f.write(raw_data)

get_recent_files()

Get a list of recently uploaded files.

recent = await client.storage.get_recent_files()

E2EE Private Files (End-to-End Encryption)

The SDK provides built-in End-to-End Encryption using AES-256-GCM and ECIES. You need to provide a private_key in the client config.

upload_private_file(file_data, grantee_public_key_hex=None, index_for_search=True, metadata=None)

Uploads a file securely. The file is AES-encrypted locally.

content = b"My secret diary entry"
hash_id = await client.upload_private_file(
    content,
    index_for_search=True,
    metadata={"app_id": "com.myapp", "type": "note"}
)
print("Encrypted File Hash:", hash_id)

download_private_file(hash_id) -> bytes

Downloads and automatically decrypts a private file (if your DID has access).

decrypted = await client.download_private_file("abc123...")
print(decrypted.decode("utf-8"))

How it works under the hood:

1. Client-Side Encryption: Your file is encrypted locally using AES-256-GCM with a random symmetric key.
2. Secure Storage: The encrypted blob is uploaded to the Storage Node (which cannot read the content).
3. Access Management: The symmetric key is ECIES-encrypted for the grantee and stored on the Consensus Node.
4. Private Vectorization: If index_for_search is True, the plaintext is sent to the Search Node for vectorization. The plaintext is immediately discarded after embedding.

DID Authentication

All write operations require signed X-Feedo-* headers. The SDK handles this automatically when you provide a private_key:

X-Feedo-DID:       did:feedo:0xYourAddress
X-Feedo-Timestamp: 1722345678901
X-Feedo-Signature: 0x<ECDSA signature of "FeedoAction:METHOD:PATH:TIMESTAMP">

Usage Key & Delegation (server-side)

Your DID is your wallet address — the funding key that holds your credits/funds. For server SDKs (AnythingLLM, Dify, backends), never put the funding key in the environment. Instead, use a separate usage key that only signs requests and can never move funds.

Getting a usage key

Option A — Website (recommended). Open https://feedo.ink/identity.html, connect any wallet (EIP-6963: MetaMask, Coinbase Wallet, Rabby, Trust, Brave, Phantom, OKX…), and click Generate usage key. The site generates a random usage key in the browser and registers the delegation with a single wallet signature. Copy the printed private key into your server env.

Option B — SDK / CLI (deterministic). Derive it from your wallet key with HMAC:

from feedo.modules.crypto import FeedoCrypto

usage = FeedoCrypto.derive_usage_key(wallet_private_key_hex)
print(usage["address"], usage["private_key"])

Then register the delegation once — the wallet signs feedo delegate usage to <usage_address>:

POST /did/delegate  { did, usage_key, signature }

Or run feedo delegate from the CLI.

Delegated mode

from feedo import FeedoClient

client = FeedoClient(
    usage_key="0x...",           # the usage key (NOT your funding key)
    did="did:feedo:0x...",       # your wallet DID (owner)
    consensus_seeds=["https://consensus.feedo.network"],
    search_seeds=["https://search.feedo.network"],
)

Requests are signed with the usage key and declare the owner DID; nodes resolve the delegation automatically.

Error Handling

The SDK handles node failover automatically. Wrap network calls in try/except:

try:
    results = await client.search.query("DeFi protocols")
except Exception as e:
    print(f"Feedo Protocol Error: {e}")

Contributing

We welcome contributions to the Feedo Protocol SDK!
GitHub Repository: https://github.com/Ashixi/feedo

1. Fork the repository.
2. Create your feature branch (git checkout -b feature/amazing-feature).
3. Commit your changes (git commit -m 'Add some amazing feature').
4. Push to the branch (git push origin feature/amazing-feature).
5. Open a Pull Request.

License

Apache License 2.0