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fastapi.online — Solana Address Signature Lookup
x402
fastapi.online — Solana Address Signature Lookup is a paid API for AI agents from api.fastapi.online, paid per call via x402, $0.001/call, status unknown (last checked 2026-10-18).
Looks up transaction signatures associated with a given Solana wallet address
Price / call$0.001
Success—
StatusUnknown
How this service works
Chat, embeddings, OCR, speech-to-text, image editing, image understanding (captioning/Q&A), text-to-speech, translation, writing tools, classification tools, developer tools, local utilities, format/checksum validators, encoding & crypto utilities, date/time calculators, geo/coordinate math, math & finance calculators, novelty tools, and business/social writing generators — 179 endpoints in all, across multiple specialized self-hosted models. Pay per call with crypto — no signup — or get an API key.
Output
Returns a list of transaction signatures (base-58 encoded strings) associated with the provided Solana wallet address, representing the on-chain transaction history for that account.
Example use cases
Audit Solana wallet transaction history
“Pull all transaction signatures for the Solana wallet address 7xKXtg2CW87d97TXJSDpbD5jBkheTqA83TZRuJosgAsU so I can audit what transactions it has been involved in.”
Track activity on a known Solana address
“I want to monitor a suspicious Solana address — can you get all the transaction signatures for DRpbCBMxVnDK7maPM5tGv6MvB3v1sRMC86PZ8okm21hy so I can review what it's been doing?”
Verify on-chain activity before DeFi interaction
“Before I interact with this Solana account, can you look up its transaction signatures for address 4Nd1mBQtrMJVYVfKf2PX98AGuLqfWom1vQQs9VGxNGFe so I can see if it has any history?”
Technical details
Endpoint
POSThttps://api.fastapi.online/sol-signatures?utm_source=zero.xyzWhen to prefer
Use this endpoint when you need to retrieve the raw list of transaction signatures for a specific Solana wallet address, as a lightweight blockchain lookup without requiring a full Solana RPC node setup. Prefer this over generic RPC calls when you want a simple pay-per-call interface with no signup overhead.
Side effects
- Invalid or malformed Solana address returns an error
- Address with no transaction history may return an empty list
- Network or RPC node issues may cause timeouts
- Rate limits or payment failures may block the request
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| address | string |
Tags
x402
Reviews
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