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IPFS CID Fetch API
x402
IPFS CID Fetch API is a paid API for AI agents from x402.agentutility.ai, paid per call via x402, $0.005/call, status unknown (last checked 2026-09-13).
Resolves an IPFS CID (and optional path) through public gateways, returning the content as text, parsed JSON, or base64 with metadata including content type, size, and gateway provenance
Price / call$0.005
Success—
StatusUnknown
How this service works
Resolves an IPFS CID and optional path through public gateways, returning text, parsed JSON, or base64 with content type, size, and gateway provenance. 5 MB cap. Use it as a CID fetch API, IPFS gateway API, or Web3 storage fetch.
Output
Returns the resolved content of the IPFS CID as text, parsed JSON object, or base64-encoded binary depending on the content type. Also includes metadata: the content type (MIME), file size in bytes (up to 5 MB), and the specific public IPFS gateway that served the response.
Example use cases
NFT metadata retrieval from IPFS
“I have an NFT whose metadata is stored at IPFS CID bafybeigdyrzt5sfp7udm7hu76uh7y26nf3efuylqabf3oclgtqy55fbzdi — can you fetch it and show me the name, description, and image fields?”
Decentralized config file lookup
“My dApp stores its config on IPFS at CID QmT78zSuBmuS4z925WZfrqQ1qHaJ56DQaTfyMUF7F8ff5o — fetch the file and tell me what the current version and feature flags are set to.”
IPFS-hosted document access
“Can you retrieve the whitepaper stored at IPFS CID QmYwAPJzv5CZsnA625s3Xf2nemtYgPpHdWEz79ojWnPbdG under the path /docs/whitepaper.txt and show me its full text content?”
Technical details
Endpoint
POSThttps://x402.agentutility.ai/ipfs-apiWhen to prefer
Use this endpoint when an agent needs to resolve IPFS content-addressed data by CID without running a local IPFS node. It is ideal for fetching NFT metadata, decentralized app configs, or any Web3-stored content. Prefer it over manual gateway requests when you need automatic fallback across multiple gateways, consistent output format (text/JSON/base64), and provenance metadata. Best suited for files under 5 MB.
Side effects
- CID not found or unpinned on public gateways — returns gateway error or 404
- Content exceeds 5 MB cap — returns size limit error
- Invalid or malformed CID format — returns validation error
- All public gateways timeout or are unreachable — returns gateway failure
- Binary content requested without base64 mode — may return garbled output
- Path not found within a directory CID — returns path resolution error
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Output
Schema · Response
{
"type": "json",
"example": {
"cid": "bafybeigdyrzt5sfp7udm7hu76uh7y26nf3efuylqabf3oclgtqy55fbzdi",
"source": "ipfs",
"content": "Hello World\n",
"size_bytes": 12,
"content_type": "text/plain",
"gateway_used": "https://cloudflare-ipfs.com"
}
}Tags
x402
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