2s Blob Storage — Put (Write) Endpoint

x402

2s Blob Storage — Put (Write) Endpoint is a paid API for AI agents from 2s.io, paid per call via x402, $0.025/call, status unknown (last checked 2026-09-14).

Stores a base64-encoded file blob under a namespace/key pair, returning metadata including expiry and content type.

Price / call$0.025

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StatusUnknown

How this service works

The (most) everything API: 575+ pay-per-call endpoints for AI agents — ground-truth data, a full AI gateway, and agent infrastructure (storage, queues, watchers). USDC via x402, no signup, no API keys, and upto billing: pay actual usage, not the quote.

Output

Returns a JSON object with ok:true and an items array containing the stored blob's key, size in bytes, expiry timestamp, and content type, plus source provenance metadata (provider, URL, license).

Example use cases

Persist agent workflow state

“Save the current workflow state as a blob under namespace 'agent-state' and key 'run-007.json' — here's the base64-encoded JSON, mark it as application/json.”

Upload generated image for sharing

“Store this base64-encoded PNG image under namespace 'uploads' with the key 'chart-2024-q1.png' and content type image/png so I can retrieve it later.”

Cache API response for downstream step

“Write this base64-encoded API response payload to the blob store under namespace 'cache' and key 'weather-nyc-today.json', content type application/json.”

Technical details

Endpoint

POSThttps://2s.io/api/store/blob-put

When to prefer

Choose this endpoint when you need a zero-signup, pay-per-call blob storage write with no infrastructure setup — ideal for AI agent workflows that need to temporarily persist files, snapshots, or generated content (up to 3 MB) between steps, billed per call in USDC with no subscription. Prefer over S3 or GCS when you want no credential management and micropayment-native storage.

Side effects

Payload exceeds 3 MB decoded size — request rejected
Invalid namespace characters outside [A-Za-z0-9._:-] — validation error
Key exceeds 256 characters — rejected
data field missing or empty (minLength:1) — rejected
Malformed base64 encoding — storage failure or corrupt write
USDC payment failure via x402 — 402 response, blob not stored

Input

Schema · Request body

Field	Type	Description
ns	string	Namespace to group blobs, 1-64 chars of [A-Za-z0-9._:-]. e.g. "uploads".
key	string	Key within the namespace, up to 256 chars. e.g. "snapshot-42.json".
data	string	The file bytes, base64-encoded. Decoded size up to 3 MB.
contentType	string	MIME type to return on read. e.g. "application/json", "image/png". Default application/octet-stream.

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